./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor388642975

<...>
list(0x5555874576a0, 24) = 0
[pid 10796] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10796] setpgid(0, 0)               = 0
[pid 10796] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10796] write(3, "1000", 4)         = 4
[pid 10796] close(3)                    = 0
[pid 10796] write(1, "executing program\n", 18executing program
) = 18
[pid 10796] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10796] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10796] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10796] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10796] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10796] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10796] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10797 attached
 => {parent_tid=[10797]}, 88) = 10797
[pid 10797] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10797] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10797] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10796] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10796] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10797] <... futex resumed>)        = 0
[pid 10797] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10797] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10797] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10796] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10796] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10797] <... futex resumed>)        = 0
[pid 10797] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10797] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10797] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10796] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10796] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10797] <... futex resumed>)        = 0
[pid 10797] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10797] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10797] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10796] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10796] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10797] <... futex resumed>)        = 0
[pid 10797] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 10796] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10797] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 10797] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10797] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10796] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10796] exit_group(0)               = ?
[pid 10797] <... futex resumed>)        = ?
[pid 10797] +++ exited with 0 +++
[pid 10796] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10796, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10798
./strace-static-x86_64: Process 10798 attached
[pid 10798] set_robust_list(0x5555874576a0, 24) = 0
[pid 10798] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10798] setpgid(0, 0)               = 0
[pid 10798] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10798] write(3, "1000", 4)         = 4
[pid 10798] close(3)                    = 0
executing program
[pid 10798] write(1, "executing program\n", 18) = 18
[pid 10798] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10798] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10798] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10798] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10798] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10798] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10798] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10799 attached
 => {parent_tid=[10799]}, 88) = 10799
[pid 10798] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10798] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10798] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10799] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10799] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10799] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10799] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10798] <... futex resumed>)        = 0
[pid 10798] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10798] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10799] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10799] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10798] <... futex resumed>)        = 0
[pid 10799] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10798] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10798] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10799] <... futex resumed>)        = 0
[pid 10799] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10799] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10798] <... futex resumed>)        = 0
[pid 10798] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10798] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10799] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10799] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10798] <... futex resumed>)        = 0
[pid 10798] exit_group(0 <unfinished ...>
[pid 10799] <... futex resumed>)        = 1
[pid 10798] <... exit_group resumed>)   = ?
[pid 10799] +++ exited with 0 +++
[pid 10798] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10798, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10800
./strace-static-x86_64: Process 10800 attached
[pid 10800] set_robust_list(0x5555874576a0, 24) = 0
[pid 10800] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10800] setpgid(0, 0)               = 0
[pid 10800] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10800] write(3, "1000", 4)         = 4
[pid 10800] close(3executing program
)                    = 0
[pid 10800] write(1, "executing program\n", 18) = 18
[pid 10800] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10800] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10800] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10800] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10800] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10800] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10800] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10801 attached
 => {parent_tid=[10801]}, 88) = 10801
[pid 10800] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10800] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10800] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10801] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10801] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10801] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10801] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10800] <... futex resumed>)        = 0
[pid 10800] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10800] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10801] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10801] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10800] <... futex resumed>)        = 0
[pid 10800] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10800] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10801] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10801] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10800] <... futex resumed>)        = 0
[pid 10800] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10800] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10801] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10801] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10800] <... futex resumed>)        = 0
[pid 10800] exit_group(0)               = ?
[pid 10801] +++ exited with 0 +++
[pid 10800] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10800, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10802
./strace-static-x86_64: Process 10802 attached
[pid 10802] set_robust_list(0x5555874576a0, 24) = 0
[pid 10802] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10802] setpgid(0, 0)               = 0
[pid 10802] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10802] write(3, "1000", 4)         = 4
[pid 10802] close(3)                    = 0
[pid 10802] write(1, "executing program\n", 18executing program
) = 18
[pid 10802] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10802] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10802] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10802] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10802] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10802] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10802] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10803 attached
 => {parent_tid=[10803]}, 88) = 10803
[pid 10802] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10802] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10802] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10803] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10803] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10803] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10803] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10802] <... futex resumed>)        = 0
[pid 10802] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10802] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10803] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10803] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10802] <... futex resumed>)        = 0
[pid 10803] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 10802] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10802] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10803] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 10803] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10802] <... futex resumed>)        = 0
[pid 10802] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10802] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10803] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10803] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10802] <... futex resumed>)        = 0
[pid 10803] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10802] exit_group(0)               = ?
[pid 10803] <... futex resumed>)        = ?
[pid 10803] +++ exited with 0 +++
[pid 10802] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10802, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10804
./strace-static-x86_64: Process 10804 attached
[pid 10804] set_robust_list(0x5555874576a0, 24) = 0
[pid 10804] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10804] setpgid(0, 0)               = 0
[pid 10804] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10804] write(3, "1000", 4)         = 4
[pid 10804] close(3)                    = 0
executing program
[pid 10804] write(1, "executing program\n", 18) = 18
[pid 10804] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10804] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10804] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10804] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10804] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10804] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10804] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10805 attached
 => {parent_tid=[10805]}, 88) = 10805
[pid 10805] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 10804] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 10805] <... set_robust_list resumed>) = 0
[pid 10804] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 10805] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 10804] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10805] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 10804] <... futex resumed>)        = 0
[pid 10805] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 10804] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10805] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10805] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10804] <... futex resumed>)        = 0
[pid 10805] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 10804] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10804] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10805] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 10805] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10804] <... futex resumed>)        = 0
[pid 10804] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10804] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10805] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10805] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10804] <... futex resumed>)        = 0
[pid 10804] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10804] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10805] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10805] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10804] <... futex resumed>)        = 0
[pid 10804] exit_group(0 <unfinished ...>
[pid 10805] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL) = ?
[pid 10804] <... exit_group resumed>)   = ?
[pid 10805] +++ exited with 0 +++
[pid 10804] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10804, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10806 attached
, child_tidptr=0x555587457690) = 10806
[pid 10806] set_robust_list(0x5555874576a0, 24) = 0
[pid 10806] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10806] setpgid(0, 0)               = 0
[pid 10806] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10806] write(3, "1000", 4)         = 4
[pid 10806] close(3)                    = 0
[pid 10806] write(1, "executing program\n", 18executing program
) = 18
[pid 10806] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10806] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10806] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10806] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10806] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10806] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10806] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10807 attached
 => {parent_tid=[10807]}, 88) = 10807
[pid 10807] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10807] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10807] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10806] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10806] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10807] <... futex resumed>)        = 0
[pid 10807] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10806] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10807] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10807] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10806] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10806] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10807] <... futex resumed>)        = 0
[pid 10807] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10807] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10807] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10806] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10806] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10807] <... futex resumed>)        = 0
[pid 10807] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10807] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10807] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10806] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10806] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10807] <... futex resumed>)        = 0
[pid 10807] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10807] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10807] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10806] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10806] exit_group(0)               = ?
[pid 10807] <... futex resumed>)        = ?
[pid 10807] +++ exited with 0 +++
[pid 10806] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10806, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10808
./strace-static-x86_64: Process 10808 attached
[pid 10808] set_robust_list(0x5555874576a0, 24) = 0
[pid 10808] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10808] setpgid(0, 0)               = 0
[pid 10808] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10808] write(3, "1000", 4)         = 4
[pid 10808] close(3)                    = 0
[pid 10808] write(1, "executing program\n", 18executing program
) = 18
[pid 10808] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10808] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10808] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10808] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10808] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10808] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10808] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10809]}, 88) = 10809
[pid 10808] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10808] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10808] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 10809 attached
 <unfinished ...>
[pid 10809] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10809] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10809] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10809] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10808] <... futex resumed>)        = 0
[pid 10808] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10808] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10809] <... futex resumed>)        = 1
[pid 10809] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10809] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10808] <... futex resumed>)        = 0
[pid 10808] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10808] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10809] <... futex resumed>)        = 1
[pid 10809] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10809] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10808] <... futex resumed>)        = 0
[pid 10808] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10808] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10809] <... futex resumed>)        = 1
[pid 10809] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10809] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10808] <... futex resumed>)        = 0
[pid 10808] exit_group(0)               = ?
[pid 10809] <... futex resumed>)        = ?
[pid 10809] +++ exited with 0 +++
[pid 10808] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10808, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10810
./strace-static-x86_64: Process 10810 attached
[pid 10810] set_robust_list(0x5555874576a0, 24) = 0
[pid 10810] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10810] setpgid(0, 0)               = 0
[pid 10810] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10810] write(3, "1000", 4)         = 4
[pid 10810] close(3executing program
)                    = 0
[pid 10810] write(1, "executing program\n", 18) = 18
[pid 10810] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10810] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10810] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10810] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10810] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10810] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10810] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10811]}, 88) = 10811
[pid 10810] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10810] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10810] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 10811 attached
 <unfinished ...>
[pid 10811] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10811] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10811] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10811] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10810] <... futex resumed>)        = 0
[pid 10810] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10810] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10811] <... futex resumed>)        = 1
[pid 10811] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10811] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10810] <... futex resumed>)        = 0
[pid 10811] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 10810] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10810] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10811] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 10811] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10810] <... futex resumed>)        = 0
[pid 10811] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10810] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10810] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10811] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10811] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10811] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10810] <... futex resumed>)        = 0
[pid 10810] exit_group(0)               = ?
[pid 10811] +++ exited with 0 +++
[pid 10810] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10810, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10812
./strace-static-x86_64: Process 10812 attached
[pid 10812] set_robust_list(0x5555874576a0, 24) = 0
[pid 10812] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10812] setpgid(0, 0)               = 0
[pid 10812] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10812] write(3, "1000", 4)         = 4
[pid 10812] close(3)                    = 0
executing program
[pid 10812] write(1, "executing program\n", 18) = 18
[pid 10812] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10812] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10812] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10812] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10812] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10812] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10812] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10813 attached
 <unfinished ...>
[pid 10813] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 10812] <... clone3 resumed> => {parent_tid=[10813]}, 88) = 10813
[pid 10812] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 10813] <... set_robust_list resumed>) = 0
[pid 10813] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 10812] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 10813] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 10812] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10813] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 10812] <... futex resumed>)        = 0
[pid 10812] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10813] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10813] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10812] <... futex resumed>)        = 0
[pid 10812] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10812] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10813] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10813] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10812] <... futex resumed>)        = 0
[pid 10812] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10812] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10813] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10813] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10812] <... futex resumed>)        = 0
[pid 10812] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10812] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10813] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10813] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10812] <... futex resumed>)        = 0
[pid 10812] exit_group(0)               = ?
[pid 10813] +++ exited with 0 +++
[pid 10812] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10812, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10814
./strace-static-x86_64: Process 10814 attached
[pid 10814] set_robust_list(0x5555874576a0, 24) = 0
[pid 10814] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10814] setpgid(0, 0)               = 0
[pid 10814] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10814] write(3, "1000", 4)         = 4
[pid 10814] close(3)                    = 0
executing program
[pid 10814] write(1, "executing program\n", 18) = 18
[pid 10814] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10814] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10814] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10814] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10814] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10814] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10814] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10815 attached
 <unfinished ...>
[pid 10815] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 10814] <... clone3 resumed> => {parent_tid=[10815]}, 88) = 10815
[pid 10814] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10814] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10815] <... set_robust_list resumed>) = 0
[pid 10814] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10815] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10815] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10815] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10814] <... futex resumed>)        = 0
[pid 10814] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10814] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10815] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10815] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10814] <... futex resumed>)        = 0
[pid 10814] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10814] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10815] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10815] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10814] <... futex resumed>)        = 0
[pid 10814] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10814] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10815] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10815] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10814] <... futex resumed>)        = 0
[pid 10814] exit_group(0)               = ?
[pid 10815] +++ exited with 0 +++
[pid 10814] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10814, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10816
./strace-static-x86_64: Process 10816 attached
[pid 10816] set_robust_list(0x5555874576a0, 24) = 0
[pid 10816] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10816] setpgid(0, 0)               = 0
[pid 10816] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10816] write(3, "1000", 4)         = 4
[pid 10816] close(3)                    = 0
[pid 10816] write(1, "executing program\n", 18executing program
) = 18
[pid 10816] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10816] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10816] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10816] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10816] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10816] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10816] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10817]}, 88) = 10817
[pid 10816] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10816] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10816] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 10817 attached
 <unfinished ...>
[pid 10817] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10817] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10817] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10817] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10816] <... futex resumed>)        = 0
[pid 10816] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10816] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10817] <... futex resumed>)        = 1
[pid 10817] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10817] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10816] <... futex resumed>)        = 0
[pid 10816] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10816] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10817] <... futex resumed>)        = 1
[pid 10817] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10817] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10816] <... futex resumed>)        = 0
[pid 10816] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10816] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10817] <... futex resumed>)        = 1
[pid 10817] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10817] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10816] <... futex resumed>)        = 0
[pid 10816] exit_group(0)               = ?
[pid 10817] <... futex resumed>)        = ?
[pid 10817] +++ exited with 0 +++
[pid 10816] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10816, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10818
./strace-static-x86_64: Process 10818 attached
[pid 10818] set_robust_list(0x5555874576a0, 24) = 0
[pid 10818] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10818] setpgid(0, 0)               = 0
[pid 10818] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10818] write(3, "1000", 4)         = 4
[pid 10818] close(3)                    = 0
[pid 10818] write(1, "executing program\n", 18executing program
) = 18
[pid 10818] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10818] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10818] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10818] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10818] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10818] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10818] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10819 attached
 => {parent_tid=[10819]}, 88) = 10819
[pid 10819] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 10818] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 10819] <... set_robust_list resumed>) = 0
[pid 10818] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 10818] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10818] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10819] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10819] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10819] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10818] <... futex resumed>)        = 0
[pid 10818] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10818] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10819] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10819] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10818] <... futex resumed>)        = 0
[pid 10818] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10818] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10819] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10819] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10818] <... futex resumed>)        = 0
[pid 10818] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10818] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10819] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10819] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10818] <... futex resumed>)        = 0
[pid 10818] exit_group(0)               = ?
[pid 10819] +++ exited with 0 +++
[pid 10818] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10818, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10820 attached
, child_tidptr=0x555587457690) = 10820
[pid 10820] set_robust_list(0x5555874576a0, 24) = 0
[pid 10820] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10820] setpgid(0, 0)               = 0
[pid 10820] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10820] write(3, "1000", 4)         = 4
[pid 10820] close(3)                    = 0
executing program
[pid 10820] write(1, "executing program\n", 18) = 18
[pid 10820] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10820] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10820] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10820] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10820] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10820] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10820] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10821 attached
 => {parent_tid=[10821]}, 88) = 10821
[pid 10820] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10820] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10820] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10821] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10821] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10821] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10821] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10820] <... futex resumed>)        = 0
[pid 10820] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10820] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10821] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10821] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10820] <... futex resumed>)        = 0
[pid 10820] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10821] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10821] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10821] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10820] <... futex resumed>)        = 1
[pid 10820] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10820] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10820] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10821] <... futex resumed>)        = 0
[pid 10821] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10821] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10820] <... futex resumed>)        = 0
[pid 10820] exit_group(0)               = ?
[pid 10821] +++ exited with 0 +++
[pid 10820] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10820, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10822
./strace-static-x86_64: Process 10822 attached
[pid 10822] set_robust_list(0x5555874576a0, 24) = 0
[pid 10822] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10822] setpgid(0, 0)               = 0
[pid 10822] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10822] write(3, "1000", 4)         = 4
[pid 10822] close(3)                    = 0
[pid 10822] write(1, "executing program\n", 18executing program
) = 18
[pid 10822] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10822] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10822] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10822] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10822] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10822] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10822] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10823 attached
 => {parent_tid=[10823]}, 88) = 10823
[pid 10823] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10823] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10823] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10822] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10822] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10823] <... futex resumed>)        = 0
[pid 10823] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10823] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10823] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10822] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10822] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10823] <... futex resumed>)        = 0
[pid 10823] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 10822] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10823] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 10823] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10823] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10822] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10822] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10823] <... futex resumed>)        = 0
[pid 10823] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10823] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10823] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10822] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10822] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10823] <... futex resumed>)        = 0
[pid 10823] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 10822] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10823] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 10823] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10822] <... futex resumed>)        = 0
[pid 10822] exit_group(0)               = ?
[pid 10823] +++ exited with 0 +++
[pid 10822] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10822, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10824 attached
, child_tidptr=0x555587457690) = 10824
[pid 10824] set_robust_list(0x5555874576a0, 24) = 0
[pid 10824] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10824] setpgid(0, 0)               = 0
[pid 10824] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10824] write(3, "1000", 4)         = 4
[pid 10824] close(3)                    = 0
[pid 10824] write(1, "executing program\n", 18executing program
) = 18
[pid 10824] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10824] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10824] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10824] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10824] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10824] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10824] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10825]}, 88) = 10825
[pid 10824] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10824] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10824] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 10825 attached
 <unfinished ...>
[pid 10825] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10825] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10825] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10825] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10824] <... futex resumed>)        = 0
[pid 10825] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10824] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10825] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10824] <... futex resumed>)        = 0
[pid 10824] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10825] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10825] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10824] <... futex resumed>)        = 0
[pid 10824] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10824] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10825] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10825] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10824] <... futex resumed>)        = 0
[pid 10824] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10824] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10825] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10825] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10824] <... futex resumed>)        = 0
[pid 10824] exit_group(0)               = ?
[pid 10825] +++ exited with 0 +++
[pid 10824] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10824, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10826
./strace-static-x86_64: Process 10826 attached
[pid 10826] set_robust_list(0x5555874576a0, 24) = 0
[pid 10826] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10826] setpgid(0, 0)               = 0
[pid 10826] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10826] write(3, "1000", 4)         = 4
[pid 10826] close(3)                    = 0
[pid 10826] write(1, "executing program\n", 18executing program
) = 18
[pid 10826] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10826] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10826] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10826] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10826] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10826] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10826] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10827 attached
 => {parent_tid=[10827]}, 88) = 10827
[pid 10827] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10827] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10827] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10826] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10826] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10827] <... futex resumed>)        = 0
[pid 10827] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10827] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10827] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10826] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10826] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10827] <... futex resumed>)        = 0
[pid 10827] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10827] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10827] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10826] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10826] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10827] <... futex resumed>)        = 0
[pid 10827] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10827] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10827] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10826] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10826] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10826] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10827] <... futex resumed>)        = 0
[pid 10827] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10827] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10826] <... futex resumed>)        = 0
[pid 10826] exit_group(0 <unfinished ...>
[pid 10827] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10826] <... exit_group resumed>)   = ?
[pid 10827] <... futex resumed>)        = ?
[pid 10827] +++ exited with 0 +++
[pid 10826] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10826, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10828
./strace-static-x86_64: Process 10828 attached
[pid 10828] set_robust_list(0x5555874576a0, 24) = 0
[pid 10828] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10828] setpgid(0, 0)               = 0
[pid 10828] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10828] write(3, "1000", 4)         = 4
[pid 10828] close(3)                    = 0
[pid 10828] write(1, "executing program\n", 18executing program
) = 18
[pid 10828] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10828] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10828] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10828] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10828] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10828] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10828] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10829 attached
 => {parent_tid=[10829]}, 88) = 10829
[pid 10829] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10829] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10829] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10828] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10828] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10829] <... futex resumed>)        = 0
[pid 10829] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10829] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10829] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10828] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10828] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10829] <... futex resumed>)        = 0
[pid 10829] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10829] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10829] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10828] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10828] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10829] <... futex resumed>)        = 0
[pid 10829] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10829] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10829] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10828] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10828] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10829] <... futex resumed>)        = 0
[pid 10829] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 10828] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10829] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 10829] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10828] <... futex resumed>)        = 0
[pid 10828] exit_group(0 <unfinished ...>
[pid 10829] ????()                      = ?
[pid 10828] <... exit_group resumed>)   = ?
[pid 10829] +++ exited with 0 +++
[pid 10828] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10828, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10830
./strace-static-x86_64: Process 10830 attached
[pid 10830] set_robust_list(0x5555874576a0, 24) = 0
[pid 10830] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10830] setpgid(0, 0)               = 0
[pid 10830] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10830] write(3, "1000", 4)         = 4
[pid 10830] close(3)                    = 0
[pid 10830] write(1, "executing program\n", 18executing program
) = 18
[pid 10830] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10830] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10830] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10830] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10830] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10830] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10830] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10831 attached
 => {parent_tid=[10831]}, 88) = 10831
[pid 10831] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10831] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10831] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10830] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10830] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10831] <... futex resumed>)        = 0
[pid 10831] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 10830] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10831] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10831] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10830] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10831] <... futex resumed>)        = 0
[pid 10831] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10830] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10831] <... futex resumed>)        = 0
[pid 10831] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10830] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10831] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10831] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10830] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10830] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10831] <... futex resumed>)        = 0
[pid 10831] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 10830] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10831] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 10831] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10831] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10830] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10830] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10831] <... futex resumed>)        = 0
[pid 10831] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 10830] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10831] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 10831] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10831] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10830] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10830] exit_group(0)               = ?
[pid 10831] <... futex resumed>)        = ?
[pid 10831] +++ exited with 0 +++
[pid 10830] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10830, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10832
./strace-static-x86_64: Process 10832 attached
[pid 10832] set_robust_list(0x5555874576a0, 24) = 0
[pid 10832] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10832] setpgid(0, 0)               = 0
[pid 10832] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10832] write(3, "1000", 4)         = 4
[pid 10832] close(3)                    = 0
[pid 10832] write(1, "executing program\n", 18executing program
) = 18
[pid 10832] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10832] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10832] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10832] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10832] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10832] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10832] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10833]}, 88) = 10833
./strace-static-x86_64: Process 10833 attached
[pid 10832] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10832] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10832] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10833] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10833] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10833] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10833] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10832] <... futex resumed>)        = 0
[pid 10832] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10832] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10833] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10833] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10832] <... futex resumed>)        = 0
[pid 10832] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10832] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10833] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10833] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10832] <... futex resumed>)        = 0
[pid 10832] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10832] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10833] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10833] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10832] <... futex resumed>)        = 0
[pid 10832] exit_group(0)               = ?
[pid 10833] +++ exited with 0 +++
[pid 10832] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10832, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10834
./strace-static-x86_64: Process 10834 attached
[pid 10834] set_robust_list(0x5555874576a0, 24) = 0
[pid 10834] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10834] setpgid(0, 0)               = 0
[pid 10834] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10834] write(3, "1000", 4)         = 4
[pid 10834] close(3executing program
)                    = 0
[pid 10834] write(1, "executing program\n", 18) = 18
[pid 10834] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10834] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10834] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10834] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10834] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10834] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10834] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10835 attached
 => {parent_tid=[10835]}, 88) = 10835
[pid 10834] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10834] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10834] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10835] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10835] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10835] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10835] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10834] <... futex resumed>)        = 0
[pid 10834] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10834] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10835] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10835] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10834] <... futex resumed>)        = 0
[pid 10834] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10835] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 10834] <... futex resumed>)        = 0
[pid 10834] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10835] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 10835] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10834] <... futex resumed>)        = 0
[pid 10834] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10834] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10835] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10835] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10834] <... futex resumed>)        = 0
[pid 10834] exit_group(0 <unfinished ...>
[pid 10835] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10834] <... exit_group resumed>)   = ?
[pid 10835] <... futex resumed>)        = ?
[pid 10835] +++ exited with 0 +++
[pid 10834] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10834, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10836 attached
, child_tidptr=0x555587457690) = 10836
[pid 10836] set_robust_list(0x5555874576a0, 24) = 0
[pid 10836] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10836] setpgid(0, 0)               = 0
[pid 10836] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10836] write(3, "1000", 4)         = 4
[pid 10836] close(3)                    = 0
executing program
[pid 10836] write(1, "executing program\n", 18) = 18
[pid 10836] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10836] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10836] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10836] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10836] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10836] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10836] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10837 attached
 => {parent_tid=[10837]}, 88) = 10837
[pid 10837] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10837] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10837] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10836] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10836] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10837] <... futex resumed>)        = 0
[pid 10836] <... futex resumed>)        = 1
[pid 10837] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 10836] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10837] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10837] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10836] <... futex resumed>)        = 0
[pid 10837] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10836] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10837] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10836] <... futex resumed>)        = 0
[pid 10837] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 10836] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10837] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 10837] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10836] <... futex resumed>)        = 0
[pid 10837] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10836] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10837] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10836] <... futex resumed>)        = 0
[pid 10837] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 10836] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10837] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 10837] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10837] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10836] <... futex resumed>)        = 0
[pid 10836] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10837] <... futex resumed>)        = 0
[pid 10836] <... futex resumed>)        = 1
[pid 10837] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 10836] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10837] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 10837] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10837] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10836] <... futex resumed>)        = 0
[pid 10836] exit_group(0 <unfinished ...>
[pid 10837] <... futex resumed>)        = ?
[pid 10836] <... exit_group resumed>)   = ?
[pid 10837] +++ exited with 0 +++
[pid 10836] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10836, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10838
./strace-static-x86_64: Process 10838 attached
[pid 10838] set_robust_list(0x5555874576a0, 24) = 0
[pid 10838] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10838] setpgid(0, 0)               = 0
[pid 10838] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10838] write(3, "1000", 4)         = 4
[pid 10838] close(3)                    = 0
[pid 10838] write(1, "executing program\n", 18executing program
) = 18
[pid 10838] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10838] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10838] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10838] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10838] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10838] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10838] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10839]}, 88) = 10839
[pid 10838] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10838] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10838] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 10839 attached
 <unfinished ...>
[pid 10839] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10839] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10839] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10839] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10838] <... futex resumed>)        = 0
[pid 10838] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10838] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10839] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10839] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10838] <... futex resumed>)        = 0
[pid 10838] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10838] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10839] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10839] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10838] <... futex resumed>)        = 0
[pid 10838] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10838] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10839] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10839] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10838] <... futex resumed>)        = 0
[pid 10838] exit_group(0)               = ?
[pid 10839] +++ exited with 0 +++
[pid 10838] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10838, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10840
./strace-static-x86_64: Process 10840 attached
[pid 10840] set_robust_list(0x5555874576a0, 24) = 0
[pid 10840] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10840] setpgid(0, 0)               = 0
[pid 10840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10840] write(3, "1000", 4)         = 4
[pid 10840] close(3)                    = 0
executing program
[pid 10840] write(1, "executing program\n", 18) = 18
[pid 10840] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10840] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10840] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10840] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10840] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10840] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10840] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10841 attached
 => {parent_tid=[10841]}, 88) = 10841
[pid 10840] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10840] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10840] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10841] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10841] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10841] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10841] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10840] <... futex resumed>)        = 0
[pid 10840] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10840] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10841] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10841] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10840] <... futex resumed>)        = 0
[pid 10840] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10840] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10841] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10841] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10840] <... futex resumed>)        = 0
[pid 10840] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10840] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10841] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10841] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10840] <... futex resumed>)        = 0
[pid 10840] exit_group(0)               = ?
[pid 10841] +++ exited with 0 +++
[pid 10840] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10840, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10842
./strace-static-x86_64: Process 10842 attached
[pid 10842] set_robust_list(0x5555874576a0, 24) = 0
[pid 10842] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10842] setpgid(0, 0)               = 0
[pid 10842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10842] write(3, "1000", 4)         = 4
[pid 10842] close(3)                    = 0
[pid 10842] write(1, "executing program\n", 18executing program
) = 18
[pid 10842] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10842] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10842] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10842] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10842] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10842] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10842] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10843]}, 88) = 10843
[pid 10842] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10842] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10842] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 10843 attached
 <unfinished ...>
[pid 10843] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10843] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10843] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10843] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10842] <... futex resumed>)        = 0
[pid 10842] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10842] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10843] <... futex resumed>)        = 1
[pid 10843] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10843] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10842] <... futex resumed>)        = 0
[pid 10842] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10842] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10843] <... futex resumed>)        = 1
[pid 10843] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10843] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10842] <... futex resumed>)        = 0
[pid 10842] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10842] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10843] <... futex resumed>)        = 1
[pid 10843] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10843] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10842] <... futex resumed>)        = 0
[pid 10842] exit_group(0)               = ?
[pid 10843] <... futex resumed>)        = ?
[pid 10843] +++ exited with 0 +++
[pid 10842] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10842, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10844
./strace-static-x86_64: Process 10844 attached
[pid 10844] set_robust_list(0x5555874576a0, 24) = 0
[pid 10844] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10844] setpgid(0, 0)               = 0
[pid 10844] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10844] write(3, "1000", 4)         = 4
[pid 10844] close(3)                    = 0
[pid 10844] write(1, "executing program\n", 18executing program
) = 18
[pid 10844] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10844] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10844] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10844] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10844] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10844] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10844] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10845]}, 88) = 10845
[pid 10844] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10844] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10844] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 10845 attached
 <unfinished ...>
[pid 10845] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10845] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10845] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10845] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10844] <... futex resumed>)        = 0
[pid 10844] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10844] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10845] <... futex resumed>)        = 1
[pid 10845] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10845] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10844] <... futex resumed>)        = 0
[pid 10844] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10844] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10845] <... futex resumed>)        = 1
[pid 10845] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10845] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10844] <... futex resumed>)        = 0
[pid 10844] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10844] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10845] <... futex resumed>)        = 1
[pid 10845] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10845] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10844] <... futex resumed>)        = 0
[pid 10844] exit_group(0)               = ?
[pid 10845] <... futex resumed>)        = ?
[pid 10845] +++ exited with 0 +++
[pid 10844] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10844, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10846 attached
, child_tidptr=0x555587457690) = 10846
[pid 10846] set_robust_list(0x5555874576a0, 24) = 0
[pid 10846] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10846] setpgid(0, 0)               = 0
[pid 10846] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10846] write(3, "1000", 4)         = 4
[pid 10846] close(3)                    = 0
[pid 10846] write(1, "executing program\n", 18executing program
) = 18
[pid 10846] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10846] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10846] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10846] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10846] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10846] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10846] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10847 attached
 <unfinished ...>
[pid 10847] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 10846] <... clone3 resumed> => {parent_tid=[10847]}, 88) = 10847
[pid 10846] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 10847] <... set_robust_list resumed>) = 0
[pid 10846] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 10847] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 10846] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10847] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 10846] <... futex resumed>)        = 0
[pid 10847] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 10846] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10847] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10847] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10846] <... futex resumed>)        = 0
[pid 10846] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10846] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10847] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10847] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10846] <... futex resumed>)        = 0
[pid 10846] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10846] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10847] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10847] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10846] <... futex resumed>)        = 0
[pid 10846] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10846] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10847] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10847] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10846] <... futex resumed>)        = 0
[pid 10846] exit_group(0)               = ?
[pid 10847] +++ exited with 0 +++
[pid 10846] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10846, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10848
./strace-static-x86_64: Process 10848 attached
[pid 10848] set_robust_list(0x5555874576a0, 24) = 0
[pid 10848] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10848] setpgid(0, 0)               = 0
[pid 10848] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10848] write(3, "1000", 4executing program
)         = 4
[pid 10848] close(3)                    = 0
[pid 10848] write(1, "executing program\n", 18) = 18
[pid 10848] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10848] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10848] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10848] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10848] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10848] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10848] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10849]}, 88) = 10849
[pid 10848] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10848] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10848] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 10849 attached
 <unfinished ...>
[pid 10849] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10849] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10849] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10849] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10848] <... futex resumed>)        = 0
[pid 10848] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10848] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10849] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10849] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10848] <... futex resumed>)        = 0
[pid 10848] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10848] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10849] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10849] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10848] <... futex resumed>)        = 0
[pid 10848] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10848] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10849] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10849] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10848] <... futex resumed>)        = 0
[pid 10848] exit_group(0)               = ?
[pid 10849] +++ exited with 0 +++
[pid 10848] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10848, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10850 attached
, child_tidptr=0x555587457690) = 10850
[pid 10850] set_robust_list(0x5555874576a0, 24) = 0
[pid 10850] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10850] setpgid(0, 0)               = 0
[pid 10850] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10850] write(3, "1000", 4)         = 4
[pid 10850] close(3)                    = 0
executing program
[pid 10850] write(1, "executing program\n", 18) = 18
[pid 10850] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10850] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10850] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10850] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10850] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10850] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10850] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10851 attached
 => {parent_tid=[10851]}, 88) = 10851
[pid 10851] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10851] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10851] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10850] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10850] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10851] <... futex resumed>)        = 0
[pid 10851] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 10850] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10851] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10851] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10851] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10850] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10850] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10851] <... futex resumed>)        = 0
[pid 10851] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10850] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10851] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10851] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10850] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10850] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10851] <... futex resumed>)        = 0
[pid 10850] <... futex resumed>)        = 1
[pid 10851] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10851] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10851] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10850] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10850] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10851] <... futex resumed>)        = 0
[pid 10850] <... futex resumed>)        = 1
[pid 10851] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 10850] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10851] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 10851] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10851] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10850] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10850] exit_group(0 <unfinished ...>
[pid 10851] <... futex resumed>)        = ?
[pid 10850] <... exit_group resumed>)   = ?
[pid 10851] +++ exited with 0 +++
[pid 10850] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10850, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10852
./strace-static-x86_64: Process 10852 attached
[pid 10852] set_robust_list(0x5555874576a0, 24) = 0
[pid 10852] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10852] setpgid(0, 0)               = 0
[pid 10852] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10852] write(3, "1000", 4)         = 4
[pid 10852] close(3)                    = 0
[pid 10852] write(1, "executing program\n", 18executing program
) = 18
[pid 10852] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10852] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10852] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10852] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10852] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10852] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10852] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10853 attached
 => {parent_tid=[10853]}, 88) = 10853
[pid 10852] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10852] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10852] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10853] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10853] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10853] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10853] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10852] <... futex resumed>)        = 0
[pid 10853] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 10852] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10853] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 10852] <... futex resumed>)        = 0
[pid 10853] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10852] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10853] <... futex resumed>)        = 0
[pid 10852] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10853] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 10852] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10853] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 10852] <... futex resumed>)        = 0
[pid 10853] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10852] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10853] <... futex resumed>)        = 0
[pid 10852] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10853] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 10852] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10853] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 10852] <... futex resumed>)        = 0
[pid 10853] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10852] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10853] <... futex resumed>)        = 0
[pid 10852] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10853] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10852] exit_group(0 <unfinished ...>
[pid 10853] <... futex resumed>)        = ?
[pid 10852] <... exit_group resumed>)   = ?
[pid 10853] +++ exited with 0 +++
[pid 10852] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10852, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10854 attached
 <unfinished ...>
[pid 10854] set_robust_list(0x5555874576a0, 24) = 0
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 10854
[pid 10854] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10854] setpgid(0, 0)               = 0
[pid 10854] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10854] write(3, "1000", 4)         = 4
[pid 10854] close(3)                    = 0
executing program
[pid 10854] write(1, "executing program\n", 18) = 18
[pid 10854] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10854] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10854] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10854] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10854] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10854] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10854] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10855 attached
 => {parent_tid=[10855]}, 88) = 10855
[pid 10854] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10854] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10854] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10855] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10855] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10855] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10855] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10854] <... futex resumed>)        = 0
[pid 10855] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 10854] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10855] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 10854] <... futex resumed>)        = 0
[pid 10855] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10854] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10855] <... futex resumed>)        = 0
[pid 10854] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10855] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 10854] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10855] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 10854] <... futex resumed>)        = 0
[pid 10855] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10854] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10855] <... futex resumed>)        = 0
[pid 10854] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10855] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 10854] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10855] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 10854] <... futex resumed>)        = 0
[pid 10855] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10854] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10855] <... futex resumed>)        = 0
[pid 10854] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10855] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10854] exit_group(0 <unfinished ...>
[pid 10855] <... futex resumed>)        = ?
[pid 10854] <... exit_group resumed>)   = ?
[pid 10855] +++ exited with 0 +++
[pid 10854] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10854, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10856
./strace-static-x86_64: Process 10856 attached
[pid 10856] set_robust_list(0x5555874576a0, 24) = 0
[pid 10856] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10856] setpgid(0, 0)               = 0
[pid 10856] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10856] write(3, "1000", 4)         = 4
[pid 10856] close(3)                    = 0
[pid 10856] write(1, "executing program\n", 18executing program
) = 18
[pid 10856] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10856] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10856] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10856] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10856] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10856] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10856] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10857 attached
 => {parent_tid=[10857]}, 88) = 10857
[pid 10857] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10857] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10857] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10856] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10856] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10857] <... futex resumed>)        = 0
[pid 10857] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10857] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10856] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10857] <... futex resumed>)        = 0
[pid 10857] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10856] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10856] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10857] <... futex resumed>)        = 0
[pid 10857] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10856] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10857] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10857] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10856] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10856] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10857] <... futex resumed>)        = 0
[pid 10857] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10857] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10857] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10856] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10856] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10857] <... futex resumed>)        = 0
[pid 10857] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 10856] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10857] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 10857] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10856] <... futex resumed>)        = 0
[pid 10856] exit_group(0)               = ?
[pid 10857] +++ exited with 0 +++
[pid 10856] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10856, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10858
./strace-static-x86_64: Process 10858 attached
[pid 10858] set_robust_list(0x5555874576a0, 24) = 0
[pid 10858] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10858] setpgid(0, 0)               = 0
[pid 10858] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10858] write(3, "1000", 4)         = 4
[pid 10858] close(3)                    = 0
executing program
[pid 10858] write(1, "executing program\n", 18) = 18
[pid 10858] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10858] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10858] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10858] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10858] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10858] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10858] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10859]}, 88) = 10859
./strace-static-x86_64: Process 10859 attached
[pid 10858] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10858] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10858] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10859] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10859] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10859] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10859] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10858] <... futex resumed>)        = 0
[pid 10858] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10858] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10859] <... futex resumed>)        = 1
[pid 10859] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10859] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10858] <... futex resumed>)        = 0
[pid 10858] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10858] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10859] <... futex resumed>)        = 1
[pid 10859] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10859] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10858] <... futex resumed>)        = 0
[pid 10858] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10858] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10859] <... futex resumed>)        = 1
[pid 10859] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10859] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10858] <... futex resumed>)        = 0
[pid 10858] exit_group(0)               = ?
[pid 10859] <... futex resumed>)        = ?
[pid 10859] +++ exited with 0 +++
[pid 10858] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10858, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10860
./strace-static-x86_64: Process 10860 attached
[pid 10860] set_robust_list(0x5555874576a0, 24) = 0
[pid 10860] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10860] setpgid(0, 0)               = 0
[pid 10860] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10860] write(3, "1000", 4)         = 4
executing program
[pid 10860] close(3)                    = 0
[pid 10860] write(1, "executing program\n", 18) = 18
[pid 10860] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10860] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10860] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10860] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10860] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10860] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10860] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10861]}, 88) = 10861
[pid 10860] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10860] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10860] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 10861 attached
 <unfinished ...>
[pid 10861] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10861] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10861] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10861] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10860] <... futex resumed>)        = 0
[pid 10860] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10860] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10861] <... futex resumed>)        = 1
[pid 10861] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10861] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10860] <... futex resumed>)        = 0
[pid 10860] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10860] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10861] <... futex resumed>)        = 1
[pid 10861] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10861] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10860] <... futex resumed>)        = 0
[pid 10860] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10860] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10861] <... futex resumed>)        = 1
[pid 10861] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10861] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10860] <... futex resumed>)        = 0
[pid 10860] exit_group(0)               = ?
[pid 10861] <... futex resumed>)        = ?
[pid 10861] +++ exited with 0 +++
[pid 10860] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10860, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10862
./strace-static-x86_64: Process 10862 attached
[pid 10862] set_robust_list(0x5555874576a0, 24) = 0
[pid 10862] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10862] setpgid(0, 0)               = 0
[pid 10862] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10862] write(3, "1000", 4)         = 4
[pid 10862] close(3)                    = 0
executing program
[pid 10862] write(1, "executing program\n", 18) = 18
[pid 10862] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10862] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10862] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10862] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10862] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10862] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10862] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10863 attached
 => {parent_tid=[10863]}, 88) = 10863
[pid 10863] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 10862] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10863] <... set_robust_list resumed>) = 0
[pid 10862] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10863] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 10862] <... futex resumed>)        = 0
[pid 10863] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 10863] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 10862] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10863] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10863] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10862] <... futex resumed>)        = 0
[pid 10862] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10862] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10863] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10863] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10862] <... futex resumed>)        = 0
[pid 10862] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10862] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10863] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10863] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10862] <... futex resumed>)        = 0
[pid 10862] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10862] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10863] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10863] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10862] <... futex resumed>)        = 0
[pid 10862] exit_group(0)               = ?
[pid 10863] +++ exited with 0 +++
[pid 10862] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10862, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10864 attached
 <unfinished ...>
[pid 10864] set_robust_list(0x5555874576a0, 24) = 0
[pid 10864] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10864] setpgid(0, 0)               = 0
[pid 10864] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10864] write(3, "1000", 4)         = 4
[pid 10864] close(3)                    = 0
[pid 10864] write(1, "executing program\n", 18executing program
) = 18
[pid 10864] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10864] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10864] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10864] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10864] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 10864
[pid 10864] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10864] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10865]}, 88) = 10865
[pid 10864] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10864] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10864] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 10865 attached
 <unfinished ...>
[pid 10865] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10865] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10865] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10865] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10864] <... futex resumed>)        = 0
[pid 10864] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10864] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10865] <... futex resumed>)        = 1
[pid 10865] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10865] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10864] <... futex resumed>)        = 0
[pid 10864] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10864] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10865] <... futex resumed>)        = 1
[pid 10865] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10865] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10864] <... futex resumed>)        = 0
[pid 10864] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10864] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10865] <... futex resumed>)        = 1
[pid 10865] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10865] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10864] <... futex resumed>)        = 0
[pid 10864] exit_group(0)               = ?
[pid 10865] <... futex resumed>)        = ?
[pid 10865] +++ exited with 0 +++
[pid 10864] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10864, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10866 attached
, child_tidptr=0x555587457690) = 10866
[pid 10866] set_robust_list(0x5555874576a0, 24) = 0
[pid 10866] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10866] setpgid(0, 0)               = 0
[pid 10866] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10866] write(3, "1000", 4)         = 4
[pid 10866] close(3executing program
)                    = 0
[pid 10866] write(1, "executing program\n", 18) = 18
[pid 10866] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10866] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10866] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10866] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10866] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10866] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10866] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10867 attached
 => {parent_tid=[10867]}, 88) = 10867
[pid 10866] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10866] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10866] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10867] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10867] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10867] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10867] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10866] <... futex resumed>)        = 0
[pid 10866] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10866] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10867] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10867] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10866] <... futex resumed>)        = 0
[pid 10866] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10866] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10867] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10867] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10866] <... futex resumed>)        = 0
[pid 10866] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10866] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10867] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10867] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10866] <... futex resumed>)        = 0
[pid 10866] exit_group(0)               = ?
[pid 10867] +++ exited with 0 +++
[pid 10866] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10866, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10868
./strace-static-x86_64: Process 10868 attached
[pid 10868] set_robust_list(0x5555874576a0, 24) = 0
[pid 10868] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10868] setpgid(0, 0)               = 0
[pid 10868] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10868] write(3, "1000", 4)         = 4
[pid 10868] close(3)                    = 0
executing program
[pid 10868] write(1, "executing program\n", 18) = 18
[pid 10868] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10868] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10868] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10868] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10868] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10868] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10868] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10869]}, 88) = 10869
[pid 10868] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10868] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10868] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 10869 attached
 <unfinished ...>
[pid 10869] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10869] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10869] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10869] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10868] <... futex resumed>)        = 0
[pid 10869] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 10868] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10868] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10869] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 10869] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10868] <... futex resumed>)        = 0
[pid 10869] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10868] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10869] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 10868] <... futex resumed>)        = 0
[pid 10868] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10869] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 10869] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10868] <... futex resumed>)        = 0
[pid 10869] <... futex resumed>)        = 1
[pid 10868] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10869] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 10868] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10869] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 10869] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10868] <... futex resumed>)        = 0
[pid 10869] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10868] exit_group(0)               = ?
[pid 10869] <... futex resumed>)        = ?
[pid 10869] +++ exited with 0 +++
[pid 10868] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10868, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10870
./strace-static-x86_64: Process 10870 attached
[pid 10870] set_robust_list(0x5555874576a0, 24) = 0
[pid 10870] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10870] setpgid(0, 0)               = 0
[pid 10870] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10870] write(3, "1000", 4)         = 4
[pid 10870] close(3)                    = 0
executing program
[pid 10870] write(1, "executing program\n", 18) = 18
[pid 10870] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10870] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10870] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10870] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10870] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10870] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10870] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10871]}, 88) = 10871
[pid 10870] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10870] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10870] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 10871 attached
 <unfinished ...>
[pid 10871] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10871] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10871] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10871] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10870] <... futex resumed>)        = 0
[pid 10870] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10870] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10871] <... futex resumed>)        = 1
[pid 10871] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10871] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10870] <... futex resumed>)        = 0
[pid 10870] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10870] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10871] <... futex resumed>)        = 1
[pid 10871] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10871] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10870] <... futex resumed>)        = 0
[pid 10870] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10870] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10871] <... futex resumed>)        = 1
[pid 10871] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10871] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10870] <... futex resumed>)        = 0
[pid 10870] exit_group(0)               = ?
[pid 10871] +++ exited with 0 +++
[pid 10870] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10870, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10872
./strace-static-x86_64: Process 10872 attached
[pid 10872] set_robust_list(0x5555874576a0, 24) = 0
[pid 10872] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10872] setpgid(0, 0)               = 0
[pid 10872] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10872] write(3, "1000", 4)         = 4
[pid 10872] close(3)                    = 0
[pid 10872] write(1, "executing program\n", 18executing program
) = 18
[pid 10872] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10872] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10872] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10872] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10872] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10872] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10872] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10873 attached
 => {parent_tid=[10873]}, 88) = 10873
[pid 10873] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 10872] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 10873] <... set_robust_list resumed>) = 0
[pid 10873] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 10872] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 10873] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 10872] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10873] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 10872] <... futex resumed>)        = 0
[pid 10872] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10873] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10873] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10872] <... futex resumed>)        = 0
[pid 10872] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10872] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10873] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10873] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10872] <... futex resumed>)        = 0
[pid 10872] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10872] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10873] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10873] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10872] <... futex resumed>)        = 0
[pid 10872] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10872] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10873] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10873] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10872] <... futex resumed>)        = 0
[pid 10872] exit_group(0)               = ?
[pid 10873] +++ exited with 0 +++
[pid 10872] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10872, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10874 attached
, child_tidptr=0x555587457690) = 10874
[pid 10874] set_robust_list(0x5555874576a0, 24) = 0
[pid 10874] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10874] setpgid(0, 0)               = 0
[pid 10874] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10874] write(3, "1000", 4)         = 4
[pid 10874] close(3)                    = 0
executing program
[pid 10874] write(1, "executing program\n", 18) = 18
[pid 10874] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10874] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10874] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10874] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10874] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10874] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10874] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10875]}, 88) = 10875
[pid 10874] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10874] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10874] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 10875 attached
 <unfinished ...>
[pid 10875] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10875] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10875] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10875] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10874] <... futex resumed>)        = 0
[pid 10874] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10874] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10875] <... futex resumed>)        = 1
[pid 10875] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10875] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10874] <... futex resumed>)        = 0
[pid 10874] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10874] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10875] <... futex resumed>)        = 1
[pid 10875] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10875] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10874] <... futex resumed>)        = 0
[pid 10874] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10874] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10875] <... futex resumed>)        = 1
[pid 10875] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10875] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10874] <... futex resumed>)        = 0
[pid 10874] exit_group(0)               = ?
[pid 10875] <... futex resumed>)        = ?
[pid 10875] +++ exited with 0 +++
[pid 10874] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10874, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10876
./strace-static-x86_64: Process 10876 attached
[pid 10876] set_robust_list(0x5555874576a0, 24) = 0
[pid 10876] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10876] setpgid(0, 0)               = 0
[pid 10876] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10876] write(3, "1000", 4)         = 4
[pid 10876] close(3executing program
)                    = 0
[pid 10876] write(1, "executing program\n", 18) = 18
[pid 10876] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10876] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10876] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10876] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10876] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10876] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10876] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10877 attached
 => {parent_tid=[10877]}, 88) = 10877
[pid 10877] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 10876] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10876] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10876] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10877] <... set_robust_list resumed>) = 0
[pid 10877] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10877] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10877] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10876] <... futex resumed>)        = 0
[pid 10876] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10876] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10877] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10877] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10876] <... futex resumed>)        = 0
[pid 10876] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10876] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10877] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10877] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10876] <... futex resumed>)        = 0
[pid 10876] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10876] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10877] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10877] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10876] <... futex resumed>)        = 0
[pid 10876] exit_group(0)               = ?
[pid 10877] +++ exited with 0 +++
[pid 10876] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10876, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10878
./strace-static-x86_64: Process 10878 attached
[pid 10878] set_robust_list(0x5555874576a0, 24) = 0
[pid 10878] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10878] setpgid(0, 0)               = 0
[pid 10878] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10878] write(3, "1000", 4)         = 4
[pid 10878] close(3)                    = 0
[pid 10878] write(1, "executing program\n", 18executing program
) = 18
[pid 10878] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10878] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10878] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10878] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10878] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10878] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10878] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10879 attached
 <unfinished ...>
[pid 10879] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 10878] <... clone3 resumed> => {parent_tid=[10879]}, 88) = 10879
[pid 10878] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 10879] <... set_robust_list resumed>) = 0
[pid 10878] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 10879] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 10878] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10879] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 10878] <... futex resumed>)        = 0
[pid 10879] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 10878] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10879] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10879] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10879] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10878] <... futex resumed>)        = 0
[pid 10878] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10879] <... futex resumed>)        = 0
[pid 10879] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10879] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10879] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10878] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10878] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10879] <... futex resumed>)        = 0
[pid 10879] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10879] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10879] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10878] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10878] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10879] <... futex resumed>)        = 0
[pid 10879] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 10878] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10879] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 10879] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10879] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10878] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10878] exit_group(0 <unfinished ...>
[pid 10879] <... futex resumed>)        = ?
[pid 10878] <... exit_group resumed>)   = ?
[pid 10879] +++ exited with 0 +++
[pid 10878] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10878, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10880 attached
, child_tidptr=0x555587457690) = 10880
[pid 10880] set_robust_list(0x5555874576a0, 24) = 0
[pid 10880] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10880] setpgid(0, 0)               = 0
[pid 10880] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10880] write(3, "1000", 4)         = 4
[pid 10880] close(3)                    = 0
[pid 10880] write(1, "executing program\n", 18executing program
) = 18
[pid 10880] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10880] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10880] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10880] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10880] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10880] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10880] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10881 attached
 => {parent_tid=[10881]}, 88) = 10881
[pid 10881] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10881] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10881] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10880] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10880] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10881] <... futex resumed>)        = 0
[pid 10881] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 10880] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10881] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10881] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10881] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10880] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10880] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10881] <... futex resumed>)        = 0
[pid 10881] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10881] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10881] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10880] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10880] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10881] <... futex resumed>)        = 0
[pid 10881] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 10880] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10881] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 10881] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10881] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10880] <... futex resumed>)        = 0
[pid 10880] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10881] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10880] <... futex resumed>)        = 0
[pid 10881] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10881] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10880] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10881] <... futex resumed>)        = 0
[pid 10881] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10880] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10880] exit_group(0)               = ?
[pid 10881] <... futex resumed>)        = ?
[pid 10881] +++ exited with 0 +++
[pid 10880] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10880, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10882
./strace-static-x86_64: Process 10882 attached
[pid 10882] set_robust_list(0x5555874576a0, 24) = 0
[pid 10882] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10882] setpgid(0, 0)               = 0
[pid 10882] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10882] write(3, "1000", 4)         = 4
[pid 10882] close(3)                    = 0
[pid 10882] write(1, "executing program\n", 18) = 18
[pid 10882] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000executing program
) = 0
[pid 10882] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10882] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10882] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10882] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10882] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10882] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10883]}, 88) = 10883
[pid 10882] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10882] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10882] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 10883 attached
 <unfinished ...>
[pid 10883] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10883] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10883] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10883] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10882] <... futex resumed>)        = 0
[pid 10882] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10882] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10883] <... futex resumed>)        = 1
[pid 10883] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10883] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10882] <... futex resumed>)        = 0
[pid 10882] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10882] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10883] <... futex resumed>)        = 1
[pid 10883] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10883] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10882] <... futex resumed>)        = 0
[pid 10882] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10882] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10883] <... futex resumed>)        = 1
[pid 10883] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10883] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10882] <... futex resumed>)        = 0
[pid 10882] exit_group(0)               = ?
[pid 10883] <... futex resumed>)        = ?
[pid 10883] +++ exited with 0 +++
[pid 10882] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10882, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10884 attached
, child_tidptr=0x555587457690) = 10884
[pid 10884] set_robust_list(0x5555874576a0, 24) = 0
[pid 10884] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10884] setpgid(0, 0)               = 0
[pid 10884] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10884] write(3, "1000", 4)         = 4
[pid 10884] close(3)                    = 0
[pid 10884] write(1, "executing program\n", 18executing program
) = 18
[pid 10884] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10884] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10884] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10884] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10884] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10884] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10884] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10885 attached
 => {parent_tid=[10885]}, 88) = 10885
[pid 10884] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10884] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10884] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10885] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10885] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10885] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10885] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10884] <... futex resumed>)        = 0
[pid 10884] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10884] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10885] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10885] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10885] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10884] <... futex resumed>)        = 0
[pid 10884] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10884] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10885] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10885] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10885] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10885] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10884] <... futex resumed>)        = 0
[pid 10884] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10884] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10885] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10885] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10885] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10884] <... futex resumed>)        = 0
[pid 10885] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10884] exit_group(0 <unfinished ...>
[pid 10885] <... futex resumed>)        = ?
[pid 10884] <... exit_group resumed>)   = ?
[pid 10885] +++ exited with 0 +++
[pid 10884] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10884, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10886
./strace-static-x86_64: Process 10886 attached
[pid 10886] set_robust_list(0x5555874576a0, 24) = 0
[pid 10886] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10886] setpgid(0, 0)               = 0
[pid 10886] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10886] write(3, "1000", 4)         = 4
[pid 10886] close(3)                    = 0
[pid 10886] write(1, "executing program\n", 18executing program
) = 18
[pid 10886] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10886] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10886] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10886] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10886] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10886] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10886] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10887 attached
 => {parent_tid=[10887]}, 88) = 10887
[pid 10887] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10887] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10887] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10886] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10886] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10887] <... futex resumed>)        = 0
[pid 10887] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 10886] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10887] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10887] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10887] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10886] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10886] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10887] <... futex resumed>)        = 0
[pid 10887] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10887] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10887] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10886] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10886] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10887] <... futex resumed>)        = 0
[pid 10887] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10886] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10887] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10886] <... futex resumed>)        = 0
[pid 10886] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10886] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10887] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10887] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10886] <... futex resumed>)        = 0
[pid 10886] exit_group(0)               = ?
[pid 10887] +++ exited with 0 +++
[pid 10886] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10886, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10888
./strace-static-x86_64: Process 10888 attached
[pid 10888] set_robust_list(0x5555874576a0, 24) = 0
[pid 10888] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10888] setpgid(0, 0)               = 0
[pid 10888] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10888] write(3, "1000", 4)         = 4
[pid 10888] close(3)                    = 0
[pid 10888] write(1, "executing program\n", 18executing program
) = 18
[pid 10888] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10888] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10888] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10888] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10888] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10888] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10888] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10889 attached
 => {parent_tid=[10889]}, 88) = 10889
[pid 10889] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 10888] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10888] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10888] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10889] <... set_robust_list resumed>) = 0
[pid 10889] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10889] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10889] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10889] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10888] <... futex resumed>)        = 0
[pid 10888] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10889] <... futex resumed>)        = 0
[pid 10889] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10889] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10889] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10888] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10888] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10889] <... futex resumed>)        = 0
[pid 10889] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10889] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10889] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10888] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10888] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10889] <... futex resumed>)        = 0
[pid 10889] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10889] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10889] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10888] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10888] exit_group(0)               = ?
[pid 10889] <... futex resumed>)        = ?
[pid 10889] +++ exited with 0 +++
[pid 10888] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10888, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10890
./strace-static-x86_64: Process 10890 attached
[pid 10890] set_robust_list(0x5555874576a0, 24) = 0
[pid 10890] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10890] setpgid(0, 0)               = 0
[pid 10890] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10890] write(3, "1000", 4)         = 4
[pid 10890] close(3)                    = 0
executing program
[pid 10890] write(1, "executing program\n", 18) = 18
[pid 10890] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10890] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10890] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10890] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10890] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10890] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10890] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10891]}, 88) = 10891
./strace-static-x86_64: Process 10891 attached
[pid 10890] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10890] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10890] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10891] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10891] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10891] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10891] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10890] <... futex resumed>)        = 0
[pid 10890] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10890] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10891] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10891] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10890] <... futex resumed>)        = 0
[pid 10890] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10890] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10891] <... futex resumed>)        = 1
[pid 10891] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10891] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10890] <... futex resumed>)        = 0
[pid 10891] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10890] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10891] <... futex resumed>)        = 0
[pid 10891] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 10890] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10891] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 10891] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10890] <... futex resumed>)        = 0
[pid 10890] exit_group(0)               = ?
[pid 10891] +++ exited with 0 +++
[pid 10890] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10890, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10892
./strace-static-x86_64: Process 10892 attached
[pid 10892] set_robust_list(0x5555874576a0, 24) = 0
[pid 10892] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10892] setpgid(0, 0)               = 0
[pid 10892] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10892] write(3, "1000", 4)         = 4
[pid 10892] close(3)                    = 0
[pid 10892] write(1, "executing program\n", 18executing program
) = 18
[pid 10892] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10892] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10892] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10892] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10892] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10892] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10892] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10893 attached
 => {parent_tid=[10893]}, 88) = 10893
[pid 10893] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 10892] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 10893] <... set_robust_list resumed>) = 0
[pid 10893] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10893] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10892] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 10892] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10893] <... futex resumed>)        = 0
[pid 10892] <... futex resumed>)        = 1
[pid 10893] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10892] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10893] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10893] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10892] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10892] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10893] <... futex resumed>)        = 0
[pid 10892] <... futex resumed>)        = 1
[pid 10893] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10893] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10893] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10892] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10892] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10893] <... futex resumed>)        = 0
[pid 10892] <... futex resumed>)        = 1
[pid 10893] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10893] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10893] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10892] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10892] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10893] <... futex resumed>)        = 0
[pid 10892] <... futex resumed>)        = 1
[pid 10893] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 10892] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10893] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 10893] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10893] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10892] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10892] exit_group(0 <unfinished ...>
[pid 10893] <... futex resumed>)        = ?
[pid 10892] <... exit_group resumed>)   = ?
[pid 10893] +++ exited with 0 +++
[pid 10892] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10892, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10894 attached
, child_tidptr=0x555587457690) = 10894
[pid 10894] set_robust_list(0x5555874576a0, 24) = 0
[pid 10894] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10894] setpgid(0, 0)               = 0
[pid 10894] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10894] write(3, "1000", 4)         = 4
[pid 10894] close(3executing program
)                    = 0
[pid 10894] write(1, "executing program\n", 18) = 18
[pid 10894] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10894] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10894] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10894] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10894] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10894] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10894] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10895]}, 88) = 10895
[pid 10894] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10894] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10894] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 10895 attached
 <unfinished ...>
[pid 10895] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10895] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10895] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10895] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10894] <... futex resumed>)        = 0
[pid 10894] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10894] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10895] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10895] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10894] <... futex resumed>)        = 0
[pid 10894] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10894] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10895] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10895] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10894] <... futex resumed>)        = 0
[pid 10894] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10894] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10895] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10895] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10894] <... futex resumed>)        = 0
[pid 10894] exit_group(0)               = ?
[pid 10895] +++ exited with 0 +++
[pid 10894] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10894, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10896
./strace-static-x86_64: Process 10896 attached
[pid 10896] set_robust_list(0x5555874576a0, 24) = 0
[pid 10896] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10896] setpgid(0, 0)               = 0
[pid 10896] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10896] write(3, "1000", 4)         = 4
[pid 10896] close(3)                    = 0
executing program
[pid 10896] write(1, "executing program\n", 18) = 18
[pid 10896] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10896] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10896] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10896] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10896] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10896] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10896] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10897]}, 88) = 10897
[pid 10896] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10896] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10896] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 10897 attached
 <unfinished ...>
[pid 10897] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10897] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10897] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10897] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10896] <... futex resumed>)        = 0
[pid 10896] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10896] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10897] <... futex resumed>)        = 1
[pid 10897] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10897] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10896] <... futex resumed>)        = 0
[pid 10896] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10896] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10897] <... futex resumed>)        = 1
[pid 10897] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10897] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10896] <... futex resumed>)        = 0
[pid 10896] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10896] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10897] <... futex resumed>)        = 1
[pid 10897] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10897] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10896] <... futex resumed>)        = 0
[pid 10896] exit_group(0)               = ?
[pid 10897] <... futex resumed>)        = ?
[pid 10897] +++ exited with 0 +++
[pid 10896] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10896, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10898
./strace-static-x86_64: Process 10898 attached
[pid 10898] set_robust_list(0x5555874576a0, 24) = 0
[pid 10898] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10898] setpgid(0, 0)               = 0
[pid 10898] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10898] write(3, "1000", 4)         = 4
[pid 10898] close(3)                    = 0
[pid 10898] write(1, "executing program\n", 18executing program
) = 18
[pid 10898] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10898] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10898] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10898] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10898] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10898] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10898] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10899]}, 88) = 10899
[pid 10898] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10898] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10898] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 10899 attached
 <unfinished ...>
[pid 10899] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10899] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10899] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10899] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10898] <... futex resumed>)        = 0
[pid 10898] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10898] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10899] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10899] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10898] <... futex resumed>)        = 0
[pid 10898] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10898] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10899] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10899] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10898] <... futex resumed>)        = 0
[pid 10898] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10898] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10899] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10899] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10898] <... futex resumed>)        = 0
[pid 10898] exit_group(0)               = ?
[pid 10899] +++ exited with 0 +++
[pid 10898] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10898, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10900
./strace-static-x86_64: Process 10900 attached
[pid 10900] set_robust_list(0x5555874576a0, 24) = 0
[pid 10900] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10900] setpgid(0, 0)               = 0
[pid 10900] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10900] write(3, "1000", 4)         = 4
[pid 10900] close(3)                    = 0
[pid 10900] write(1, "executing program\n", 18executing program
) = 18
[pid 10900] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10900] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10900] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10900] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10900] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10900] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10900] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10901 attached
 => {parent_tid=[10901]}, 88) = 10901
[pid 10901] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10901] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10901] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10900] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10900] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10901] <... futex resumed>)        = 0
[pid 10901] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10901] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10901] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10900] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10900] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10901] <... futex resumed>)        = 0
[pid 10901] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10901] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10901] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10900] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10900] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10901] <... futex resumed>)        = 0
[pid 10900] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10901] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10901] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10900] <... futex resumed>)        = 0
[pid 10900] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10900] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10901] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10901] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10900] <... futex resumed>)        = 0
[pid 10901] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10900] exit_group(0 <unfinished ...>
[pid 10901] <... futex resumed>)        = ?
[pid 10900] <... exit_group resumed>)   = ?
[pid 10901] +++ exited with 0 +++
[pid 10900] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10900, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10902
./strace-static-x86_64: Process 10902 attached
[pid 10902] set_robust_list(0x5555874576a0, 24) = 0
[pid 10902] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10902] setpgid(0, 0)               = 0
[pid 10902] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10902] write(3, "1000", 4)         = 4
[pid 10902] close(3)                    = 0
[pid 10902] write(1, "executing program\n", 18executing program
) = 18
[pid 10902] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10902] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10902] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10902] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10902] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10902] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10902] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10903]}, 88) = 10903
[pid 10902] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10902] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10902] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 10903 attached
 <unfinished ...>
[pid 10903] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10903] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10903] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10903] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10902] <... futex resumed>)        = 0
[pid 10902] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10902] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10903] <... futex resumed>)        = 1
[pid 10903] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10903] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10902] <... futex resumed>)        = 0
[pid 10902] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10902] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10903] <... futex resumed>)        = 1
[pid 10903] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10903] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10902] <... futex resumed>)        = 0
[pid 10902] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10902] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10903] <... futex resumed>)        = 1
[pid 10903] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10903] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10902] <... futex resumed>)        = 0
[pid 10902] exit_group(0)               = ?
[pid 10903] <... futex resumed>)        = ?
[pid 10903] +++ exited with 0 +++
[pid 10902] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10902, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10904 attached
, child_tidptr=0x555587457690) = 10904
[pid 10904] set_robust_list(0x5555874576a0, 24) = 0
[pid 10904] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10904] setpgid(0, 0)               = 0
[pid 10904] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10904] write(3, "1000", 4)         = 4
[pid 10904] close(3)                    = 0
executing program
[pid 10904] write(1, "executing program\n", 18) = 18
[pid 10904] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10904] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10904] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10904] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10904] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10904] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10904] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10905 attached
 => {parent_tid=[10905]}, 88) = 10905
[pid 10905] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 10904] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 10905] <... set_robust_list resumed>) = 0
[pid 10904] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 10905] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 10904] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10905] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 10904] <... futex resumed>)        = 0
[pid 10905] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 10904] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10905] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10905] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10904] <... futex resumed>)        = 0
[pid 10904] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10904] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10905] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10905] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10904] <... futex resumed>)        = 0
[pid 10904] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10904] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10905] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10905] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10904] <... futex resumed>)        = 0
[pid 10904] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10904] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10905] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10905] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10904] <... futex resumed>)        = 0
[pid 10904] exit_group(0)               = ?
[pid 10905] +++ exited with 0 +++
[pid 10904] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10904, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10906
./strace-static-x86_64: Process 10906 attached
[pid 10906] set_robust_list(0x5555874576a0, 24) = 0
[pid 10906] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10906] setpgid(0, 0)               = 0
[pid 10906] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10906] write(3, "1000", 4)         = 4
[pid 10906] close(3)                    = 0
[pid 10906] write(1, "executing program\n", 18executing program
) = 18
[pid 10906] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10906] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10906] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10906] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10906] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10906] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10906] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10907 attached
 => {parent_tid=[10907]}, 88) = 10907
[pid 10906] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10906] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10906] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10907] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10907] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10907] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10907] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10906] <... futex resumed>)        = 0
[pid 10906] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10906] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10907] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10907] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10906] <... futex resumed>)        = 0
[pid 10906] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10906] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10907] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10907] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10906] <... futex resumed>)        = 0
[pid 10906] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10906] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10907] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10907] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10906] <... futex resumed>)        = 0
[pid 10906] exit_group(0)               = ?
[pid 10907] +++ exited with 0 +++
[pid 10906] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10906, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10908
./strace-static-x86_64: Process 10908 attached
[pid 10908] set_robust_list(0x5555874576a0, 24) = 0
[pid 10908] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10908] setpgid(0, 0)               = 0
[pid 10908] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10908] write(3, "1000", 4)         = 4
[pid 10908] close(3)                    = 0
[pid 10908] write(1, "executing program\n", 18executing program
) = 18
[pid 10908] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10908] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10908] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10908] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10908] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10908] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10908] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10909 attached
 => {parent_tid=[10909]}, 88) = 10909
[pid 10908] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10908] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10908] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10909] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10909] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10909] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10909] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10908] <... futex resumed>)        = 0
[pid 10908] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10909] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 10908] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10909] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 10909] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10908] <... futex resumed>)        = 0
[pid 10908] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10908] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10909] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10909] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10908] <... futex resumed>)        = 0
[pid 10909] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 10908] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10909] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 10908] <... futex resumed>)        = 0
[pid 10909] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10908] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10909] <... futex resumed>)        = 0
[pid 10908] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10909] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10908] exit_group(0 <unfinished ...>
[pid 10909] <... futex resumed>)        = ?
[pid 10908] <... exit_group resumed>)   = ?
[pid 10909] +++ exited with 0 +++
[pid 10908] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10908, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10910
./strace-static-x86_64: Process 10910 attached
[pid 10910] set_robust_list(0x5555874576a0, 24) = 0
[pid 10910] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10910] setpgid(0, 0)               = 0
[pid 10910] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10910] write(3, "1000", 4)         = 4
[pid 10910] close(3)                    = 0
executing program
[pid 10910] write(1, "executing program\n", 18) = 18
[pid 10910] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10910] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10910] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10910] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10910] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10910] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10910] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10911]}, 88) = 10911
./strace-static-x86_64: Process 10911 attached
[pid 10910] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 10911] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 10910] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 10910] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10910] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10911] <... set_robust_list resumed>) = 0
[pid 10911] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10911] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10911] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10910] <... futex resumed>)        = 0
[pid 10911] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 10910] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10911] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 10910] <... futex resumed>)        = 0
[pid 10911] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10910] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10911] <... futex resumed>)        = 0
[pid 10910] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10911] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 10910] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10911] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 10910] <... futex resumed>)        = 0
[pid 10911] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10910] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10911] <... futex resumed>)        = 0
[pid 10910] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10911] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 10910] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10911] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 10910] <... futex resumed>)        = 0
[pid 10911] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10910] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10911] <... futex resumed>)        = 0
[pid 10910] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10911] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10910] exit_group(0 <unfinished ...>
[pid 10911] <... futex resumed>)        = ?
[pid 10910] <... exit_group resumed>)   = ?
[pid 10911] +++ exited with 0 +++
[pid 10910] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10910, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10912
./strace-static-x86_64: Process 10912 attached
[pid 10912] set_robust_list(0x5555874576a0, 24) = 0
[pid 10912] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10912] setpgid(0, 0)               = 0
[pid 10912] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10912] write(3, "1000", 4)         = 4
[pid 10912] close(3)                    = 0
executing program
[pid 10912] write(1, "executing program\n", 18) = 18
[pid 10912] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10912] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10912] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10912] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10912] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10912] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10912] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10913]}, 88) = 10913
[pid 10912] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10912] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10912] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 10913 attached
 <unfinished ...>
[pid 10913] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10913] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10913] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10913] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10913] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10912] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10912] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10912] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10913] <... futex resumed>)        = 0
[pid 10913] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10913] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10913] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10912] <... futex resumed>)        = 0
[pid 10912] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10913] <... futex resumed>)        = 0
[pid 10913] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10913] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10913] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10912] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10912] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10913] <... futex resumed>)        = 0
[pid 10913] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10913] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10913] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10912] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10912] exit_group(0)               = ?
[pid 10913] <... futex resumed>)        = ?
[pid 10913] +++ exited with 0 +++
[pid 10912] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10912, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10914
./strace-static-x86_64: Process 10914 attached
[pid 10914] set_robust_list(0x5555874576a0, 24) = 0
[pid 10914] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10914] setpgid(0, 0)               = 0
[pid 10914] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10914] write(3, "1000", 4)         = 4
[pid 10914] close(3)                    = 0
[pid 10914] write(1, "executing program\n", 18executing program
) = 18
[pid 10914] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10914] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10914] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10914] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10914] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10914] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10914] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10915]}, 88) = 10915
./strace-static-x86_64: Process 10915 attached
[pid 10914] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 10915] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10915] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10915] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10914] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 10914] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10915] <... futex resumed>)        = 0
[pid 10915] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 10914] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10915] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10915] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10915] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10914] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10914] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10915] <... futex resumed>)        = 0
[pid 10915] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10915] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10915] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10914] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10914] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10915] <... futex resumed>)        = 0
[pid 10914] <... futex resumed>)        = 1
[pid 10915] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 10914] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10915] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 10915] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10914] <... futex resumed>)        = 0
[pid 10914] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10914] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10915] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10915] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10914] <... futex resumed>)        = 0
[pid 10915] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10914] exit_group(0)               = ?
[pid 10915] <... futex resumed>)        = ?
[pid 10915] +++ exited with 0 +++
[pid 10914] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10914, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10916
./strace-static-x86_64: Process 10916 attached
[pid 10916] set_robust_list(0x5555874576a0, 24) = 0
[pid 10916] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10916] setpgid(0, 0)               = 0
[pid 10916] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10916] write(3, "1000", 4)         = 4
[pid 10916] close(3)                    = 0
[pid 10916] write(1, "executing program\n", 18executing program
) = 18
[pid 10916] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10916] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10916] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10916] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10916] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10916] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10916] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10917 attached
 => {parent_tid=[10917]}, 88) = 10917
[pid 10917] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10917] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10917] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10916] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10916] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10917] <... futex resumed>)        = 0
[pid 10917] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10917] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10916] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10917] <... futex resumed>)        = 0
[pid 10917] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10916] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10916] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10917] <... futex resumed>)        = 0
[pid 10917] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10917] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10916] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10917] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10916] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10916] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10917] <... futex resumed>)        = 0
[pid 10916] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10917] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10917] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10917] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10916] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10916] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10917] <... futex resumed>)        = 0
[pid 10916] <... futex resumed>)        = 1
[pid 10916] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10917] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10917] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10916] <... futex resumed>)        = 0
[pid 10917] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10916] exit_group(0 <unfinished ...>
[pid 10917] <... futex resumed>)        = ?
[pid 10916] <... exit_group resumed>)   = ?
[pid 10917] +++ exited with 0 +++
[pid 10916] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10916, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10918
./strace-static-x86_64: Process 10918 attached
[pid 10918] set_robust_list(0x5555874576a0, 24) = 0
[pid 10918] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10918] setpgid(0, 0)               = 0
[pid 10918] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10918] write(3, "1000", 4)         = 4
[pid 10918] close(3)                    = 0
executing program
[pid 10918] write(1, "executing program\n", 18) = 18
[pid 10918] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10918] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10918] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10918] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10918] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10918] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10918] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10919 attached
 <unfinished ...>
[pid 10919] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10919] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10919] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10918] <... clone3 resumed> => {parent_tid=[10919]}, 88) = 10919
[pid 10918] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10918] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10919] <... futex resumed>)        = 0
[pid 10919] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10919] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10919] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10918] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10918] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10919] <... futex resumed>)        = 0
[pid 10918] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10919] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10919] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10919] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10918] <... futex resumed>)        = 0
[pid 10919] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10918] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10919] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 10918] <... futex resumed>)        = 0
[pid 10918] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10919] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 10919] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10918] <... futex resumed>)        = 0
[pid 10918] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10918] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10919] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10919] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10919] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10918] <... futex resumed>)        = 0
[pid 10918] exit_group(0)               = ?
[pid 10919] <... futex resumed>)        = ?
[pid 10919] +++ exited with 0 +++
[pid 10918] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10918, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10920
./strace-static-x86_64: Process 10920 attached
[pid 10920] set_robust_list(0x5555874576a0, 24) = 0
[pid 10920] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10920] setpgid(0, 0)               = 0
[pid 10920] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10920] write(3, "1000", 4)         = 4
[pid 10920] close(3)                    = 0
[pid 10920] write(1, "executing program\n", 18executing program
) = 18
[pid 10920] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10920] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10920] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10920] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10920] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10920] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10920] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10921 attached
 => {parent_tid=[10921]}, 88) = 10921
[pid 10921] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10921] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10921] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10920] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10920] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10921] <... futex resumed>)        = 0
[pid 10921] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10921] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10921] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10920] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10920] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10921] <... futex resumed>)        = 0
[pid 10920] <... futex resumed>)        = 1
[pid 10921] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 10920] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10921] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 10921] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10920] <... futex resumed>)        = 0
[pid 10921] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 10920] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10921] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 10921] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10920] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10921] <... futex resumed>)        = 0
[pid 10920] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10920] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10921] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10920] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10921] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10920] <... futex resumed>)        = 0
[pid 10921] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10920] exit_group(0 <unfinished ...>
[pid 10921] <... futex resumed>)        = ?
[pid 10920] <... exit_group resumed>)   = ?
[pid 10921] +++ exited with 0 +++
[pid 10920] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10920, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10922
./strace-static-x86_64: Process 10922 attached
[pid 10922] set_robust_list(0x5555874576a0, 24) = 0
[pid 10922] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10922] setpgid(0, 0)               = 0
[pid 10922] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10922] write(3, "1000", 4)         = 4
[pid 10922] close(3)                    = 0
[pid 10922] write(1, "executing program\n", 18executing program
) = 18
[pid 10922] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10922] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10922] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10922] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10922] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10922] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10922] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10923]}, 88) = 10923
[pid 10922] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10922] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10922] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 10923 attached
 <unfinished ...>
[pid 10923] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10923] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10923] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10923] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10922] <... futex resumed>)        = 0
[pid 10922] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10922] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10923] <... futex resumed>)        = 1
[pid 10923] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10923] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10922] <... futex resumed>)        = 0
[pid 10922] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10922] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10923] <... futex resumed>)        = 1
[pid 10923] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10923] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10922] <... futex resumed>)        = 0
[pid 10922] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10922] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10923] <... futex resumed>)        = 1
[pid 10923] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10923] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10922] <... futex resumed>)        = 0
[pid 10922] exit_group(0)               = ?
[pid 10923] <... futex resumed>)        = ?
[pid 10923] +++ exited with 0 +++
[pid 10922] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10922, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10924
./strace-static-x86_64: Process 10924 attached
[pid 10924] set_robust_list(0x5555874576a0, 24) = 0
[pid 10924] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10924] setpgid(0, 0)               = 0
[pid 10924] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10924] write(3, "1000", 4)         = 4
[pid 10924] close(3)                    = 0
[pid 10924] write(1, "executing program\n", 18executing program
) = 18
[pid 10924] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10924] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10924] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10924] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10924] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10924] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10924] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10925 attached
 => {parent_tid=[10925]}, 88) = 10925
[pid 10925] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10925] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10925] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10924] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10924] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10925] <... futex resumed>)        = 0
[pid 10925] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 10924] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10925] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10925] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10924] <... futex resumed>)        = 0
[pid 10924] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10924] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10925] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10925] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10924] <... futex resumed>)        = 0
[pid 10924] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10925] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 10924] <... futex resumed>)        = 0
[pid 10924] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10925] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 10925] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10924] <... futex resumed>)        = 0
[pid 10924] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10924] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10925] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10925] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10924] <... futex resumed>)        = 0
[pid 10924] exit_group(0 <unfinished ...>
[pid 10925] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10924] <... exit_group resumed>)   = ?
[pid 10925] <... futex resumed>)        = ?
[pid 10925] +++ exited with 0 +++
[pid 10924] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10924, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10926
./strace-static-x86_64: Process 10926 attached
[pid 10926] set_robust_list(0x5555874576a0, 24) = 0
[pid 10926] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10926] setpgid(0, 0)               = 0
[pid 10926] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10926] write(3, "1000", 4)         = 4
[pid 10926] close(3executing program
)                    = 0
[pid 10926] write(1, "executing program\n", 18) = 18
[pid 10926] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10926] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10926] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10926] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10926] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10926] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10926] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10927 attached
 => {parent_tid=[10927]}, 88) = 10927
[pid 10927] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 10926] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10926] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10926] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10927] <... set_robust_list resumed>) = 0
[pid 10927] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10927] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10927] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10926] <... futex resumed>)        = 0
[pid 10926] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10926] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10927] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10927] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10926] <... futex resumed>)        = 0
[pid 10926] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10926] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10927] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10927] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10926] <... futex resumed>)        = 0
[pid 10926] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10926] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10927] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10927] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10926] <... futex resumed>)        = 0
[pid 10926] exit_group(0)               = ?
[pid 10927] +++ exited with 0 +++
[pid 10926] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10926, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10928 attached
, child_tidptr=0x555587457690) = 10928
[pid 10928] set_robust_list(0x5555874576a0, 24) = 0
[pid 10928] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10928] setpgid(0, 0)               = 0
[pid 10928] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10928] write(3, "1000", 4)         = 4
[pid 10928] close(3)                    = 0
executing program
[pid 10928] write(1, "executing program\n", 18) = 18
[pid 10928] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10928] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10928] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10928] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10928] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10928] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10928] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10929]}, 88) = 10929
./strace-static-x86_64: Process 10929 attached
[pid 10928] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10928] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10928] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10929] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10929] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10929] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10929] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10928] <... futex resumed>)        = 0
[pid 10928] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10928] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10929] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10929] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10928] <... futex resumed>)        = 0
[pid 10928] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10928] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10929] <... futex resumed>)        = 1
[pid 10929] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10929] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10928] <... futex resumed>)        = 0
[pid 10928] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10928] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10929] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10929] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10928] <... futex resumed>)        = 0
[pid 10928] exit_group(0)               = ?
[pid 10929] +++ exited with 0 +++
[pid 10928] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10928, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10930
./strace-static-x86_64: Process 10930 attached
[pid 10930] set_robust_list(0x5555874576a0, 24) = 0
[pid 10930] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10930] setpgid(0, 0)               = 0
[pid 10930] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10930] write(3, "1000", 4)         = 4
[pid 10930] close(3)                    = 0
[pid 10930] write(1, "executing program\n", 18executing program
) = 18
[pid 10930] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10930] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10930] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10930] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10930] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10930] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10930] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10931 attached
 => {parent_tid=[10931]}, 88) = 10931
[pid 10931] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10931] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10931] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10930] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10930] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10931] <... futex resumed>)        = 0
[pid 10931] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10931] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10931] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10930] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10930] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10931] <... futex resumed>)        = 0
[pid 10931] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10931] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10931] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10930] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10930] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10931] <... futex resumed>)        = 0
[pid 10931] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10931] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10931] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10930] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10930] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10931] <... futex resumed>)        = 0
[pid 10931] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10931] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10931] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10930] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10930] exit_group(0)               = ?
[pid 10931] <... futex resumed>)        = ?
[pid 10931] +++ exited with 0 +++
[pid 10930] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10930, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10932
./strace-static-x86_64: Process 10932 attached
[pid 10932] set_robust_list(0x5555874576a0, 24) = 0
[pid 10932] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10932] setpgid(0, 0)               = 0
[pid 10932] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10932] write(3, "1000", 4)         = 4
[pid 10932] close(3executing program
)                    = 0
[pid 10932] write(1, "executing program\n", 18) = 18
[pid 10932] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10932] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10932] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10932] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10932] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10932] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10932] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10933 attached
 => {parent_tid=[10933]}, 88) = 10933
[pid 10932] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10932] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10932] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10933] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10933] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10933] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10933] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10932] <... futex resumed>)        = 0
[pid 10932] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10932] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10933] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10933] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10932] <... futex resumed>)        = 0
[pid 10932] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10932] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10933] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10933] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10932] <... futex resumed>)        = 0
[pid 10932] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10932] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10933] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10933] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10932] <... futex resumed>)        = 0
[pid 10932] exit_group(0)               = ?
[pid 10933] +++ exited with 0 +++
[pid 10932] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10932, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10934 attached
 <unfinished ...>
[pid 10934] set_robust_list(0x5555874576a0, 24) = 0
[pid 10934] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 10934
[pid 10934] <... prctl resumed>)        = 0
[pid 10934] setpgid(0, 0)               = 0
[pid 10934] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10934] write(3, "1000", 4)         = 4
[pid 10934] close(3)                    = 0
executing program
[pid 10934] write(1, "executing program\n", 18) = 18
[pid 10934] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10934] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10934] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10934] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10934] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10934] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10934] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10935 attached
 => {parent_tid=[10935]}, 88) = 10935
[pid 10935] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 10934] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10934] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10934] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10935] <... set_robust_list resumed>) = 0
[pid 10935] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10935] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10935] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10934] <... futex resumed>)        = 0
[pid 10934] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10934] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10935] <... futex resumed>)        = 1
[pid 10935] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10935] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10934] <... futex resumed>)        = 0
[pid 10934] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10934] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10935] <... futex resumed>)        = 1
[pid 10935] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10935] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10934] <... futex resumed>)        = 0
[pid 10934] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10934] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10935] <... futex resumed>)        = 1
[pid 10935] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10935] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10934] <... futex resumed>)        = 0
[pid 10934] exit_group(0)               = ?
[pid 10935] +++ exited with 0 +++
[pid 10934] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10934, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10936 attached
, child_tidptr=0x555587457690) = 10936
[pid 10936] set_robust_list(0x5555874576a0, 24) = 0
[pid 10936] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10936] setpgid(0, 0)               = 0
[pid 10936] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10936] write(3, "1000", 4)         = 4
[pid 10936] close(3)                    = 0
[pid 10936] write(1, "executing program\n", 18executing program
) = 18
[pid 10936] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10936] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10936] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10936] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10936] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10936] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10936] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10937 attached
 => {parent_tid=[10937]}, 88) = 10937
[pid 10936] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 10937] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 10936] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 10936] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10936] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10937] <... set_robust_list resumed>) = 0
[pid 10937] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10937] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10937] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10936] <... futex resumed>)        = 0
[pid 10937] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 10936] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10937] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 10936] <... futex resumed>)        = 0
[pid 10937] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10936] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10937] <... futex resumed>)        = 0
[pid 10936] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10937] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 10936] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10937] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 10936] <... futex resumed>)        = 0
[pid 10937] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10936] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10937] <... futex resumed>)        = 0
[pid 10936] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10937] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 10936] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10937] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 10936] <... futex resumed>)        = 0
[pid 10937] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10936] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10937] <... futex resumed>)        = 0
[pid 10936] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10937] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10936] exit_group(0 <unfinished ...>
[pid 10937] <... futex resumed>)        = ?
[pid 10936] <... exit_group resumed>)   = ?
[pid 10937] +++ exited with 0 +++
[pid 10936] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10936, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10938
./strace-static-x86_64: Process 10938 attached
[pid 10938] set_robust_list(0x5555874576a0, 24) = 0
[pid 10938] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10938] setpgid(0, 0)               = 0
[pid 10938] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10938] write(3, "1000", 4)         = 4
[pid 10938] close(3)                    = 0
[pid 10938] write(1, "executing program\n", 18executing program
) = 18
[pid 10938] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10938] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10938] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10938] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10938] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10938] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10938] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10939 attached
 => {parent_tid=[10939]}, 88) = 10939
[pid 10938] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10938] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10938] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10939] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10939] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10939] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10939] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10938] <... futex resumed>)        = 0
[pid 10939] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 10938] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10939] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 10938] <... futex resumed>)        = 0
[pid 10939] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10938] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10939] <... futex resumed>)        = 0
[pid 10938] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10939] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 10938] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10939] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 10938] <... futex resumed>)        = 0
[pid 10938] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10939] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10938] <... futex resumed>)        = 0
[pid 10939] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 10938] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10939] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 10938] <... futex resumed>)        = 0
[pid 10939] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10938] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10939] <... futex resumed>)        = 0
[pid 10938] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10939] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10938] exit_group(0 <unfinished ...>
[pid 10939] <... futex resumed>)        = ?
[pid 10938] <... exit_group resumed>)   = ?
[pid 10939] +++ exited with 0 +++
[pid 10938] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10938, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10940
./strace-static-x86_64: Process 10940 attached
[pid 10940] set_robust_list(0x5555874576a0, 24) = 0
[pid 10940] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10940] setpgid(0, 0)               = 0
[pid 10940] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10940] write(3, "1000", 4)         = 4
[pid 10940] close(3)                    = 0
[pid 10940] write(1, "executing program\n", 18executing program
) = 18
[pid 10940] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10940] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10940] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10940] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10940] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10940] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10940] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10941 attached
 => {parent_tid=[10941]}, 88) = 10941
[pid 10940] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10940] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10940] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10941] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10941] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10941] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10941] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10940] <... futex resumed>)        = 0
[pid 10941] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 10940] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10941] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 10941] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10940] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10941] <... futex resumed>)        = 0
[pid 10940] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10941] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 10940] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10941] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 10940] <... futex resumed>)        = 0
[pid 10941] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10940] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10941] <... futex resumed>)        = 0
[pid 10940] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10941] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 10940] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10941] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 10940] <... futex resumed>)        = 0
[pid 10941] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10940] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10941] <... futex resumed>)        = 0
[pid 10940] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10941] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10940] exit_group(0 <unfinished ...>
[pid 10941] <... futex resumed>)        = ?
[pid 10940] <... exit_group resumed>)   = ?
[pid 10941] +++ exited with 0 +++
[pid 10940] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10940, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10942
./strace-static-x86_64: Process 10942 attached
[pid 10942] set_robust_list(0x5555874576a0, 24) = 0
[pid 10942] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10942] setpgid(0, 0)               = 0
[pid 10942] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10942] write(3, "1000", 4)         = 4
[pid 10942] close(3)                    = 0
executing program
[pid 10942] write(1, "executing program\n", 18) = 18
[pid 10942] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10942] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10942] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10942] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10942] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10942] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10942] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10943]}, 88) = 10943
./strace-static-x86_64: Process 10943 attached
[pid 10943] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10943] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10943] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10942] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10942] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10943] <... futex resumed>)        = 0
[pid 10942] <... futex resumed>)        = 1
[pid 10943] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10943] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10943] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10942] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10942] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10943] <... futex resumed>)        = 0
[pid 10942] <... futex resumed>)        = 1
[pid 10943] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10943] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10943] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10942] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10942] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10943] <... futex resumed>)        = 0
[pid 10942] <... futex resumed>)        = 1
[pid 10943] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10943] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10943] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10942] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10942] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10943] <... futex resumed>)        = 0
[pid 10942] <... futex resumed>)        = 1
[pid 10943] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10943] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10943] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10942] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10942] exit_group(0 <unfinished ...>
[pid 10943] <... futex resumed>)        = ?
[pid 10942] <... exit_group resumed>)   = ?
[pid 10943] +++ exited with 0 +++
[pid 10942] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10942, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10944 attached
, child_tidptr=0x555587457690) = 10944
[pid 10944] set_robust_list(0x5555874576a0, 24) = 0
[pid 10944] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10944] setpgid(0, 0)               = 0
[pid 10944] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10944] write(3, "1000", 4)         = 4
[pid 10944] close(3)                    = 0
[pid 10944] write(1, "executing program\n", 18executing program
) = 18
[pid 10944] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10944] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10944] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10944] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10944] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10944] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10944] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10945 attached
 => {parent_tid=[10945]}, 88) = 10945
[pid 10945] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10944] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 10945] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 10944] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 10945] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 10944] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10945] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 10944] <... futex resumed>)        = 0
[pid 10945] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10944] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10945] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10944] <... futex resumed>)        = 0
[pid 10944] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10944] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10945] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10945] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10944] <... futex resumed>)        = 0
[pid 10944] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10944] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10945] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10945] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10944] <... futex resumed>)        = 0
[pid 10944] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10944] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10945] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10945] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10944] <... futex resumed>)        = 0
[pid 10944] exit_group(0)               = ?
[pid 10945] +++ exited with 0 +++
[pid 10944] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10944, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10946 attached
, child_tidptr=0x555587457690) = 10946
[pid 10946] set_robust_list(0x5555874576a0, 24) = 0
[pid 10946] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10946] setpgid(0, 0)               = 0
[pid 10946] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10946] write(3, "1000", 4)         = 4
[pid 10946] close(3)                    = 0
[pid 10946] write(1, "executing program\n", 18executing program
) = 18
[pid 10946] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10946] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10946] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10946] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10946] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10946] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10946] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10947 attached
 => {parent_tid=[10947]}, 88) = 10947
[pid 10946] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10946] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10946] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10947] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10947] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10947] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10947] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10946] <... futex resumed>)        = 0
[pid 10946] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10946] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10947] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10947] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10946] <... futex resumed>)        = 0
[pid 10946] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10946] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10947] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10947] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10946] <... futex resumed>)        = 0
[pid 10946] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10946] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10947] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10947] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10946] <... futex resumed>)        = 0
[pid 10946] exit_group(0)               = ?
[pid 10947] +++ exited with 0 +++
[pid 10946] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10946, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10948
./strace-static-x86_64: Process 10948 attached
[pid 10948] set_robust_list(0x5555874576a0, 24) = 0
[pid 10948] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10948] setpgid(0, 0)               = 0
[pid 10948] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10948] write(3, "1000", 4)         = 4
[pid 10948] close(3)                    = 0
executing program
[pid 10948] write(1, "executing program\n", 18) = 18
[pid 10948] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10948] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10948] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10948] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10948] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10948] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10948] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10949 attached
 <unfinished ...>
[pid 10949] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10949] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10949] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10948] <... clone3 resumed> => {parent_tid=[10949]}, 88) = 10949
[pid 10948] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10948] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10949] <... futex resumed>)        = 0
[pid 10949] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10949] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10949] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10948] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10948] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10949] <... futex resumed>)        = 0
[pid 10949] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10949] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10949] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10948] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10948] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10949] <... futex resumed>)        = 0
[pid 10949] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10949] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10949] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10948] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10948] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10949] <... futex resumed>)        = 0
[pid 10949] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10949] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10949] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10948] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10948] exit_group(0)               = ?
[pid 10949] <... futex resumed>)        = ?
[pid 10949] +++ exited with 0 +++
[pid 10948] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10948, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10950
./strace-static-x86_64: Process 10950 attached
[pid 10950] set_robust_list(0x5555874576a0, 24) = 0
[pid 10950] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10950] setpgid(0, 0)               = 0
[pid 10950] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10950] write(3, "1000", 4)         = 4
[pid 10950] close(3)                    = 0
executing program
[pid 10950] write(1, "executing program\n", 18) = 18
[pid 10950] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10950] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10950] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10950] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10950] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10950] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10950] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10951 attached
 => {parent_tid=[10951]}, 88) = 10951
[pid 10950] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10950] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10950] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10951] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10951] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10951] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10951] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10950] <... futex resumed>)        = 0
[pid 10950] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10950] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10951] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10951] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10950] <... futex resumed>)        = 0
[pid 10950] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10950] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10951] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10951] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10950] <... futex resumed>)        = 0
[pid 10950] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10950] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10951] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10951] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10950] <... futex resumed>)        = 0
[pid 10950] exit_group(0)               = ?
[pid 10951] +++ exited with 0 +++
[pid 10950] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10950, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10952
./strace-static-x86_64: Process 10952 attached
[pid 10952] set_robust_list(0x5555874576a0, 24) = 0
[pid 10952] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10952] setpgid(0, 0)               = 0
[pid 10952] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10952] write(3, "1000", 4)         = 4
[pid 10952] close(3executing program
)                    = 0
[pid 10952] write(1, "executing program\n", 18) = 18
[pid 10952] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10952] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10952] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10952] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10952] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10952] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10952] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10953 attached
 => {parent_tid=[10953]}, 88) = 10953
[pid 10952] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10952] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10952] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10953] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10953] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10953] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10953] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10952] <... futex resumed>)        = 0
[pid 10952] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10952] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10953] <... futex resumed>)        = 1
[pid 10953] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10953] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10952] <... futex resumed>)        = 0
[pid 10952] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10952] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10953] <... futex resumed>)        = 1
[pid 10953] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10953] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10952] <... futex resumed>)        = 0
[pid 10952] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10953] <... futex resumed>)        = 1
[pid 10952] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10953] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10953] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10952] <... futex resumed>)        = 0
[pid 10953] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10952] exit_group(0 <unfinished ...>
[pid 10953] <... futex resumed>)        = ?
[pid 10952] <... exit_group resumed>)   = ?
[pid 10953] +++ exited with 0 +++
[pid 10952] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10952, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10954
./strace-static-x86_64: Process 10954 attached
[pid 10954] set_robust_list(0x5555874576a0, 24) = 0
[pid 10954] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10954] setpgid(0, 0)               = 0
[pid 10954] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10954] write(3, "1000", 4)         = 4
[pid 10954] close(3)                    = 0
[pid 10954] write(1, "executing program\n", 18executing program
) = 18
[pid 10954] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10954] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10954] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10954] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10954] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10954] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10954] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10955]}, 88) = 10955
[pid 10954] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10954] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10954] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 10955 attached
 <unfinished ...>
[pid 10955] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10955] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10955] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10955] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10954] <... futex resumed>)        = 0
[pid 10954] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10954] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10955] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10955] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10954] <... futex resumed>)        = 0
[pid 10954] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10954] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10955] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10955] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10954] <... futex resumed>)        = 0
[pid 10954] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10954] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10955] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10955] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10954] <... futex resumed>)        = 0
[pid 10954] exit_group(0)               = ?
[pid 10955] +++ exited with 0 +++
[pid 10954] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10954, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10956
./strace-static-x86_64: Process 10956 attached
[pid 10956] set_robust_list(0x5555874576a0, 24) = 0
[pid 10956] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10956] setpgid(0, 0)               = 0
[pid 10956] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10956] write(3, "1000", 4)         = 4
[pid 10956] close(3)                    = 0
executing program
[pid 10956] write(1, "executing program\n", 18) = 18
[pid 10956] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10956] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10956] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10956] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10956] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10956] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10956] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10957 attached
 => {parent_tid=[10957]}, 88) = 10957
[pid 10957] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10957] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10957] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10956] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10956] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10957] <... futex resumed>)        = 0
[pid 10957] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10957] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10957] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10956] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10956] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10957] <... futex resumed>)        = 0
[pid 10957] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10957] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10957] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10956] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10956] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10957] <... futex resumed>)        = 0
[pid 10957] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10957] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10957] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10956] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10956] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10957] <... futex resumed>)        = 0
[pid 10957] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10957] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10957] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10956] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10956] exit_group(0)               = ?
[pid 10957] <... futex resumed>)        = ?
[pid 10957] +++ exited with 0 +++
[pid 10956] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10956, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10958
./strace-static-x86_64: Process 10958 attached
[pid 10958] set_robust_list(0x5555874576a0, 24) = 0
[pid 10958] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10958] setpgid(0, 0)               = 0
[pid 10958] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10958] write(3, "1000", 4)         = 4
[pid 10958] close(3executing program
)                    = 0
[pid 10958] write(1, "executing program\n", 18) = 18
[pid 10958] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10958] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10958] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10958] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10958] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10958] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10958] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10959]}, 88) = 10959
[pid 10958] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 10959 attached
NULL, 8) = 0
[pid 10959] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 10958] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10959] <... set_robust_list resumed>) = 0
[pid 10959] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 10958] <... futex resumed>)        = 0
[pid 10959] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 10958] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10959] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10959] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10958] <... futex resumed>)        = 0
[pid 10958] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10958] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10959] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10959] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10958] <... futex resumed>)        = 0
[pid 10958] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10958] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10959] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10959] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10958] <... futex resumed>)        = 0
[pid 10958] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10958] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10959] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10959] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10958] <... futex resumed>)        = 0
[pid 10958] exit_group(0)               = ?
[pid 10959] +++ exited with 0 +++
[pid 10958] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10958, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10960
./strace-static-x86_64: Process 10960 attached
[pid 10960] set_robust_list(0x5555874576a0, 24) = 0
[pid 10960] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10960] setpgid(0, 0)               = 0
[pid 10960] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10960] write(3, "1000", 4)         = 4
executing program
[pid 10960] close(3)                    = 0
[pid 10960] write(1, "executing program\n", 18) = 18
[pid 10960] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10960] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10960] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10960] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10960] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10960] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10960] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10961 attached
 => {parent_tid=[10961]}, 88) = 10961
[pid 10960] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10960] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10960] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10961] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10961] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10961] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10961] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10960] <... futex resumed>)        = 0
[pid 10960] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10960] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10961] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10961] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10960] <... futex resumed>)        = 0
[pid 10960] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10960] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10961] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10961] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10960] <... futex resumed>)        = 0
[pid 10960] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10960] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10961] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10961] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10960] <... futex resumed>)        = 0
[pid 10960] exit_group(0)               = ?
[pid 10961] +++ exited with 0 +++
[pid 10960] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10960, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10962
./strace-static-x86_64: Process 10962 attached
[pid 10962] set_robust_list(0x5555874576a0, 24) = 0
[pid 10962] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10962] setpgid(0, 0)               = 0
[pid 10962] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10962] write(3, "1000", 4)         = 4
[pid 10962] close(3)                    = 0
[pid 10962] write(1, "executing program\n", 18executing program
) = 18
[pid 10962] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10962] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10962] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10962] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10962] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10962] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10962] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10963 attached
 => {parent_tid=[10963]}, 88) = 10963
[pid 10963] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10963] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10963] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10962] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10962] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10963] <... futex resumed>)        = 0
[pid 10963] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10963] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10963] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10962] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10962] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10963] <... futex resumed>)        = 0
[pid 10963] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10963] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10963] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10962] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10962] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10963] <... futex resumed>)        = 0
[pid 10963] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10963] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10963] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10962] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10962] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10963] <... futex resumed>)        = 0
[pid 10962] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10963] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10963] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10963] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10962] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10962] exit_group(0)               = ?
[pid 10963] <... futex resumed>)        = ?
[pid 10963] +++ exited with 0 +++
[pid 10962] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10962, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10964
./strace-static-x86_64: Process 10964 attached
[pid 10964] set_robust_list(0x5555874576a0, 24) = 0
[pid 10964] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10964] setpgid(0, 0)               = 0
[pid 10964] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10964] write(3, "1000", 4)         = 4
[pid 10964] close(3)                    = 0
executing program
[pid 10964] write(1, "executing program\n", 18) = 18
[pid 10964] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10964] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10964] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10964] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10964] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10964] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10964] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10965]}, 88) = 10965
./strace-static-x86_64: Process 10965 attached
[pid 10965] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10965] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10965] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10964] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10964] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10965] <... futex resumed>)        = 0
[pid 10965] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10965] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10965] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10964] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10964] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10965] <... futex resumed>)        = 0
[pid 10965] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10964] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10965] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10964] <... futex resumed>)        = 0
[pid 10964] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10965] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 10964] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10965] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 10965] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10964] <... futex resumed>)        = 0
[pid 10964] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10964] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10965] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10965] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10964] <... futex resumed>)        = 0
[pid 10964] exit_group(0)               = ?
[pid 10965] +++ exited with 0 +++
[pid 10964] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10964, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10966
./strace-static-x86_64: Process 10966 attached
[pid 10966] set_robust_list(0x5555874576a0, 24) = 0
[pid 10966] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10966] setpgid(0, 0)               = 0
[pid 10966] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10966] write(3, "1000", 4)         = 4
[pid 10966] close(3)                    = 0
[pid 10966] write(1, "executing program\n", 18executing program
) = 18
[pid 10966] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10966] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10966] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10966] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10966] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10966] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10966] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10967 attached
 <unfinished ...>
[pid 10967] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 10966] <... clone3 resumed> => {parent_tid=[10967]}, 88) = 10967
[pid 10966] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10967] <... set_robust_list resumed>) = 0
[pid 10966] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10966] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10967] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10967] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10967] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10966] <... futex resumed>)        = 0
[pid 10966] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10966] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10967] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10967] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10966] <... futex resumed>)        = 0
[pid 10966] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10966] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10967] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10967] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10966] <... futex resumed>)        = 0
[pid 10966] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10966] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10967] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10967] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10967] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10966] <... futex resumed>)        = 0
[pid 10966] exit_group(0)               = ?
[pid 10967] <... futex resumed>)        = ?
[pid 10967] +++ exited with 0 +++
[pid 10966] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10966, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10968
./strace-static-x86_64: Process 10968 attached
[pid 10968] set_robust_list(0x5555874576a0, 24) = 0
[pid 10968] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10968] setpgid(0, 0)               = 0
[pid 10968] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10968] write(3, "1000", 4)         = 4
[pid 10968] close(3)                    = 0
executing program
[pid 10968] write(1, "executing program\n", 18) = 18
[pid 10968] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10968] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10968] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10968] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10968] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10968] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10968] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10969]}, 88) = 10969
./strace-static-x86_64: Process 10969 attached
[pid 10968] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10968] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10968] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10969] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10969] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10969] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10969] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10968] <... futex resumed>)        = 0
[pid 10968] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10968] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10969] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10969] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10968] <... futex resumed>)        = 0
[pid 10968] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10968] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10969] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10969] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10968] <... futex resumed>)        = 0
[pid 10968] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10968] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10969] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10969] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10968] <... futex resumed>)        = 0
[pid 10968] exit_group(0 <unfinished ...>
[pid 10969] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10968] <... exit_group resumed>)   = ?
[pid 10969] <... futex resumed>)        = ?
[pid 10969] +++ exited with 0 +++
[pid 10968] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10968, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10970
./strace-static-x86_64: Process 10970 attached
[pid 10970] set_robust_list(0x5555874576a0, 24) = 0
[pid 10970] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10970] setpgid(0, 0)               = 0
[pid 10970] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10970] write(3, "1000", 4)         = 4
executing program
[pid 10970] close(3)                    = 0
[pid 10970] write(1, "executing program\n", 18) = 18
[pid 10970] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10970] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10970] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10970] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10970] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10970] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10970] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10971]}, 88) = 10971
[pid 10970] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10970] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10970] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 10971 attached
 <unfinished ...>
[pid 10971] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10971] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10971] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10971] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10970] <... futex resumed>)        = 0
[pid 10970] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10970] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10971] <... futex resumed>)        = 1
[pid 10971] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10971] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10970] <... futex resumed>)        = 0
[pid 10970] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10970] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10971] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10971] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10970] <... futex resumed>)        = 0
[pid 10970] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10970] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10971] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10971] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10970] <... futex resumed>)        = 0
[pid 10970] exit_group(0 <unfinished ...>
[pid 10971] ????( <unfinished ...>
[pid 10970] <... exit_group resumed>)   = ?
[pid 10971] <... ???? resumed>)         = ?
[pid 10971] +++ exited with 0 +++
[pid 10970] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10970, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10972
./strace-static-x86_64: Process 10972 attached
[pid 10972] set_robust_list(0x5555874576a0, 24) = 0
[pid 10972] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10972] setpgid(0, 0)               = 0
[pid 10972] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10972] write(3, "1000", 4)         = 4
[pid 10972] close(3)                    = 0
[pid 10972] write(1, "executing program\n", 18executing program
) = 18
[pid 10972] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10972] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10972] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10972] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10972] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10972] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10972] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10973 attached
 => {parent_tid=[10973]}, 88) = 10973
[pid 10973] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10973] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10973] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10972] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10972] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10973] <... futex resumed>)        = 0
[pid 10973] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10973] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10973] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10972] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10972] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10973] <... futex resumed>)        = 0
[pid 10973] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10973] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10973] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10972] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10972] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10973] <... futex resumed>)        = 0
[pid 10973] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10973] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10973] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10972] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10972] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10973] <... futex resumed>)        = 0
[pid 10973] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10973] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10973] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10972] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10972] exit_group(0)               = ?
[pid 10973] <... futex resumed>)        = ?
[pid 10973] +++ exited with 0 +++
[pid 10972] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10972, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10974
./strace-static-x86_64: Process 10974 attached
[pid 10974] set_robust_list(0x5555874576a0, 24) = 0
[pid 10974] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10974] setpgid(0, 0)               = 0
[pid 10974] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10974] write(3, "1000", 4)         = 4
[pid 10974] close(3)                    = 0
executing program
[pid 10974] write(1, "executing program\n", 18) = 18
[pid 10974] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10974] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10974] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10974] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10974] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10974] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10974] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10975]}, 88) = 10975
[pid 10974] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10974] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10974] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 10975 attached
 <unfinished ...>
[pid 10975] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10975] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10975] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10975] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10974] <... futex resumed>)        = 0
[pid 10974] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10974] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10975] <... futex resumed>)        = 1
[pid 10975] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10975] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10974] <... futex resumed>)        = 0
[pid 10974] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10974] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10975] <... futex resumed>)        = 1
[pid 10975] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10975] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10974] <... futex resumed>)        = 0
[pid 10974] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10974] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10975] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10975] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10974] <... futex resumed>)        = 0
[pid 10975] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10974] exit_group(0)               = ?
[pid 10975] <... futex resumed>)        = ?
[pid 10975] +++ exited with 0 +++
[pid 10974] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10974, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10976
./strace-static-x86_64: Process 10976 attached
[pid 10976] set_robust_list(0x5555874576a0, 24) = 0
[pid 10976] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10976] setpgid(0, 0)               = 0
[pid 10976] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10976] write(3, "1000", 4)         = 4
[pid 10976] close(3)                    = 0
[pid 10976] write(1, "executing program\n", 18executing program
) = 18
[pid 10976] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10976] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10976] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10976] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10976] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10976] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10976] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10977 attached
 => {parent_tid=[10977]}, 88) = 10977
[pid 10977] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10977] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10977] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10976] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10976] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10977] <... futex resumed>)        = 0
[pid 10977] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10977] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10977] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10976] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10976] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10977] <... futex resumed>)        = 0
[pid 10977] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10977] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10977] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10976] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10976] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10977] <... futex resumed>)        = 0
[pid 10977] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10977] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10977] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10976] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10976] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10977] <... futex resumed>)        = 0
[pid 10976] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10977] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10977] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10976] <... futex resumed>)        = 0
[pid 10977] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10976] exit_group(0 <unfinished ...>
[pid 10977] <... futex resumed>)        = ?
[pid 10976] <... exit_group resumed>)   = ?
[pid 10977] +++ exited with 0 +++
[pid 10976] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10976, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10978
./strace-static-x86_64: Process 10978 attached
[pid 10978] set_robust_list(0x5555874576a0, 24) = 0
[pid 10978] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10978] setpgid(0, 0)               = 0
[pid 10978] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10978] write(3, "1000", 4)         = 4
[pid 10978] close(3)                    = 0
[pid 10978] write(1, "executing program\n", 18executing program
) = 18
[pid 10978] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10978] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10978] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10978] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10978] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10978] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10978] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10979 attached
 <unfinished ...>
[pid 10979] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10979] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10979] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10978] <... clone3 resumed> => {parent_tid=[10979]}, 88) = 10979
[pid 10978] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10978] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10979] <... futex resumed>)        = 0
[pid 10979] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10979] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10979] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10978] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10978] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10979] <... futex resumed>)        = 0
[pid 10979] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10979] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10979] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10978] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10978] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10979] <... futex resumed>)        = 0
[pid 10979] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10978] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10979] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10978] <... futex resumed>)        = 0
[pid 10978] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10978] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10979] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10979] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10978] <... futex resumed>)        = 0
[pid 10978] exit_group(0)               = ?
[pid 10979] +++ exited with 0 +++
[pid 10978] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10978, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10980
./strace-static-x86_64: Process 10980 attached
[pid 10980] set_robust_list(0x5555874576a0, 24) = 0
[pid 10980] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10980] setpgid(0, 0)               = 0
[pid 10980] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10980] write(3, "1000", 4)         = 4
[pid 10980] close(3)                    = 0
[pid 10980] write(1, "executing program\n", 18executing program
) = 18
[pid 10980] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10980] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10980] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10980] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10980] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10980] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10980] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10981 attached
 => {parent_tid=[10981]}, 88) = 10981
[pid 10981] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10981] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10981] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10980] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10980] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10981] <... futex resumed>)        = 0
[pid 10981] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10981] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10981] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10980] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10980] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10981] <... futex resumed>)        = 0
[pid 10981] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10981] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10981] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10980] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10980] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10981] <... futex resumed>)        = 0
[pid 10981] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10980] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10981] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10981] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10980] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10980] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10981] <... futex resumed>)        = 0
[pid 10981] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 10980] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10981] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 10981] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10980] <... futex resumed>)        = 0
[pid 10981] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10980] exit_group(0)               = ?
[pid 10981] <... futex resumed>)        = ?
[pid 10981] +++ exited with 0 +++
[pid 10980] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10980, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10982 attached
, child_tidptr=0x555587457690) = 10982
[pid 10982] set_robust_list(0x5555874576a0, 24) = 0
[pid 10982] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10982] setpgid(0, 0)               = 0
[pid 10982] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10982] write(3, "1000", 4)         = 4
[pid 10982] close(3)                    = 0
[pid 10982] write(1, "executing program\n", 18executing program
) = 18
[pid 10982] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10982] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10982] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10982] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10982] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10982] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10982] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10983 attached
 => {parent_tid=[10983]}, 88) = 10983
[pid 10982] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10982] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10982] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10983] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10983] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10983] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10983] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10982] <... futex resumed>)        = 0
[pid 10982] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10982] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10983] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10983] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10982] <... futex resumed>)        = 0
[pid 10982] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10982] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10983] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10983] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10982] <... futex resumed>)        = 0
[pid 10982] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10982] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10983] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10983] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10982] <... futex resumed>)        = 0
[pid 10982] exit_group(0)               = ?
[pid 10983] +++ exited with 0 +++
[pid 10982] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10982, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10984
./strace-static-x86_64: Process 10984 attached
[pid 10984] set_robust_list(0x5555874576a0, 24) = 0
[pid 10984] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10984] setpgid(0, 0)               = 0
[pid 10984] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10984] write(3, "1000", 4)         = 4
[pid 10984] close(3executing program
)                    = 0
[pid 10984] write(1, "executing program\n", 18) = 18
[pid 10984] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10984] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10984] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10984] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10984] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10984] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10984] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10985 attached
 => {parent_tid=[10985]}, 88) = 10985
[pid 10984] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10984] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10984] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10985] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10985] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10985] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10985] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10984] <... futex resumed>)        = 0
[pid 10984] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10984] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10985] <... futex resumed>)        = 1
[pid 10985] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10985] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10984] <... futex resumed>)        = 0
[pid 10984] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10984] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10985] <... futex resumed>)        = 1
[pid 10985] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10985] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10984] <... futex resumed>)        = 0
[pid 10984] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10984] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10985] <... futex resumed>)        = 1
[pid 10985] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10985] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10984] <... futex resumed>)        = 0
[pid 10984] exit_group(0)               = ?
[pid 10985] <... futex resumed>)        = ?
[pid 10985] +++ exited with 0 +++
[pid 10984] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10984, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10986
./strace-static-x86_64: Process 10986 attached
[pid 10986] set_robust_list(0x5555874576a0, 24) = 0
[pid 10986] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10986] setpgid(0, 0)               = 0
[pid 10986] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10986] write(3, "1000", 4)         = 4
[pid 10986] close(3)                    = 0
executing program
[pid 10986] write(1, "executing program\n", 18) = 18
[pid 10986] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10986] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10986] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10986] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10986] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10986] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10986] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10987]}, 88) = 10987
[pid 10986] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10986] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10986] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 10987 attached
 <unfinished ...>
[pid 10987] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10987] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10987] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10987] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10986] <... futex resumed>)        = 0
[pid 10986] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10986] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10987] <... futex resumed>)        = 1
[pid 10987] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10987] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10986] <... futex resumed>)        = 0
[pid 10986] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10986] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10987] <... futex resumed>)        = 1
[pid 10987] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10987] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10986] <... futex resumed>)        = 0
[pid 10986] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10986] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10987] <... futex resumed>)        = 1
[pid 10987] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10987] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 10986] <... futex resumed>)        = 0
[pid 10986] exit_group(0)               = ?
[pid 10987] <... futex resumed>)        = ?
[pid 10987] +++ exited with 0 +++
[pid 10986] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10986, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10988
./strace-static-x86_64: Process 10988 attached
[pid 10988] set_robust_list(0x5555874576a0, 24) = 0
[pid 10988] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10988] setpgid(0, 0)               = 0
[pid 10988] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10988] write(3, "1000", 4)         = 4
[pid 10988] close(3)                    = 0
executing program
[pid 10988] write(1, "executing program\n", 18) = 18
[pid 10988] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10988] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10988] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10988] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10988] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10988] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10988] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[10989]}, 88) = 10989
./strace-static-x86_64: Process 10989 attached
[pid 10988] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10988] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10988] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10989] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10989] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10989] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10989] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10989] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10988] <... futex resumed>)        = 0
[pid 10988] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10989] <... futex resumed>)        = 0
[pid 10989] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10988] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10989] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10989] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10988] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10988] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10989] <... futex resumed>)        = 0
[pid 10989] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 10988] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10989] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 10989] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10989] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10988] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10988] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10989] <... futex resumed>)        = 0
[pid 10988] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10989] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10989] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10988] <... futex resumed>)        = 0
[pid 10988] exit_group(0)               = ?
[pid 10989] +++ exited with 0 +++
[pid 10988] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10988, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10990 attached
, child_tidptr=0x555587457690) = 10990
[pid 10990] set_robust_list(0x5555874576a0, 24) = 0
[pid 10990] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10990] setpgid(0, 0)               = 0
[pid 10990] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10990] write(3, "1000", 4)         = 4
[pid 10990] close(3)                    = 0
[pid 10990] write(1, "executing program\n", 18executing program
) = 18
[pid 10990] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10990] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10990] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10990] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10990] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10990] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10990] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10991 attached
 => {parent_tid=[10991]}, 88) = 10991
[pid 10991] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10990] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 10991] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 10990] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 10991] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 10990] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10991] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10990] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10991] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10990] <... futex resumed>)        = 0
[pid 10990] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10990] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10991] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10991] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10990] <... futex resumed>)        = 0
[pid 10990] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10990] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10991] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10991] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10990] <... futex resumed>)        = 0
[pid 10991] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10990] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10990] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10991] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10991] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10991] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10990] <... futex resumed>)        = 0
[pid 10991] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10990] exit_group(0)               = ?
[pid 10991] <... futex resumed>)        = ?
[pid 10991] +++ exited with 0 +++
[pid 10990] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10990, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10992
./strace-static-x86_64: Process 10992 attached
[pid 10992] set_robust_list(0x5555874576a0, 24) = 0
[pid 10992] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10992] setpgid(0, 0)               = 0
[pid 10992] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10992] write(3, "1000", 4)         = 4
executing program
[pid 10992] close(3)                    = 0
[pid 10992] write(1, "executing program\n", 18) = 18
[pid 10992] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10992] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10992] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10992] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10992] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10992] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10992] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10993 attached
 => {parent_tid=[10993]}, 88) = 10993
[pid 10993] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10993] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10993] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10992] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10992] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10993] <... futex resumed>)        = 0
[pid 10993] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 10992] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10993] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10993] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10993] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10992] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10992] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10993] <... futex resumed>)        = 0
[pid 10993] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10993] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10993] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10992] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10992] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10993] <... futex resumed>)        = 0
[pid 10993] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10993] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10993] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10992] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10992] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10993] <... futex resumed>)        = 0
[pid 10993] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10993] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10993] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10992] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10992] exit_group(0)               = ?
[pid 10993] <... futex resumed>)        = ?
[pid 10993] +++ exited with 0 +++
[pid 10992] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10992, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 10994 attached
, child_tidptr=0x555587457690) = 10994
[pid 10994] set_robust_list(0x5555874576a0, 24) = 0
[pid 10994] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10994] setpgid(0, 0)               = 0
[pid 10994] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10994] write(3, "1000", 4)         = 4
[pid 10994] close(3)                    = 0
[pid 10994] write(1, "executing program\n", 18executing program
) = 18
[pid 10994] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10994] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10994] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10994] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10994] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10994] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10994] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10995 attached
 <unfinished ...>
[pid 10995] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 10994] <... clone3 resumed> => {parent_tid=[10995]}, 88) = 10995
[pid 10995] <... set_robust_list resumed>) = 0
[pid 10995] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10995] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10994] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10994] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10995] <... futex resumed>)        = 0
[pid 10995] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10995] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10995] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10994] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10994] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10995] <... futex resumed>)        = 0
[pid 10995] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10995] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10995] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10994] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10994] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10995] <... futex resumed>)        = 0
[pid 10995] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 10994] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10995] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 10995] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10995] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10994] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 10994] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10995] <... futex resumed>)        = 0
[pid 10994] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10995] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10995] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10994] <... futex resumed>)        = 0
[pid 10995] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10994] exit_group(0 <unfinished ...>
[pid 10995] <... futex resumed>)        = ?
[pid 10994] <... exit_group resumed>)   = ?
[pid 10995] +++ exited with 0 +++
[pid 10994] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10994, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10996
./strace-static-x86_64: Process 10996 attached
[pid 10996] set_robust_list(0x5555874576a0, 24) = 0
[pid 10996] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10996] setpgid(0, 0)               = 0
[pid 10996] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10996] write(3, "1000", 4)         = 4
[pid 10996] close(3)                    = 0
executing program
[pid 10996] write(1, "executing program\n", 18) = 18
[pid 10996] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10996] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10996] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10996] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10996] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10996] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10996] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10997 attached
 => {parent_tid=[10997]}, 88) = 10997
[pid 10997] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 10996] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10996] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10996] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10997] <... set_robust_list resumed>) = 0
[pid 10997] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10997] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10997] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10996] <... futex resumed>)        = 0
[pid 10996] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10996] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10997] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10997] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10996] <... futex resumed>)        = 0
[pid 10996] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10996] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10997] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10997] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10996] <... futex resumed>)        = 0
[pid 10996] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10996] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 10997] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10997] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10996] <... futex resumed>)        = 0
[pid 10996] exit_group(0)               = ?
[pid 10997] +++ exited with 0 +++
[pid 10996] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10996, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 10998
./strace-static-x86_64: Process 10998 attached
[pid 10998] set_robust_list(0x5555874576a0, 24) = 0
[pid 10998] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 10998] setpgid(0, 0)               = 0
[pid 10998] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 10998] write(3, "1000", 4)         = 4
[pid 10998] close(3)                    = 0
[pid 10998] write(1, "executing program\n", 18executing program
) = 18
[pid 10998] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10998] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 10998] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 10998] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 10998] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 10998] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 10998] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 10999 attached
 => {parent_tid=[10999]}, 88) = 10999
[pid 10999] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 10999] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10999] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10998] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 10998] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10999] <... futex resumed>)        = 0
[pid 10999] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 10999] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10999] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10998] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10998] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10999] <... futex resumed>)        = 0
[pid 10999] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 10999] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10999] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10998] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10998] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10999] <... futex resumed>)        = 0
[pid 10999] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 10999] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10999] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10998] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10998] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 10999] <... futex resumed>)        = 0
[pid 10999] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 10999] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 10999] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 10998] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 10998] exit_group(0)               = ?
[pid 10999] <... futex resumed>)        = ?
[pid 10999] +++ exited with 0 +++
[pid 10998] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10998, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11000
./strace-static-x86_64: Process 11000 attached
[pid 11000] set_robust_list(0x5555874576a0, 24) = 0
[pid 11000] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11000] setpgid(0, 0)               = 0
[pid 11000] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11000] write(3, "1000", 4)         = 4
[pid 11000] close(3)                    = 0
[pid 11000] write(1, "executing program\n", 18executing program
) = 18
[pid 11000] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11000] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11000] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11000] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11000] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11000] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11000] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11001]}, 88) = 11001
./strace-static-x86_64: Process 11001 attached
[pid 11000] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11001] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11001] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11001] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11000] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11000] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11001] <... futex resumed>)        = 0
[pid 11001] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11000] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11001] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11001] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11000] <... futex resumed>)        = 0
[pid 11000] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11000] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11001] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11001] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11000] <... futex resumed>)        = 0
[pid 11000] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11000] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11001] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11001] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11000] <... futex resumed>)        = 0
[pid 11000] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11000] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11001] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11001] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11000] <... futex resumed>)        = 0
[pid 11000] exit_group(0)               = ?
[pid 11001] +++ exited with 0 +++
[pid 11000] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11000, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11002
./strace-static-x86_64: Process 11002 attached
[pid 11002] set_robust_list(0x5555874576a0, 24) = 0
[pid 11002] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11002] setpgid(0, 0)               = 0
[pid 11002] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11002] write(3, "1000", 4)         = 4
[pid 11002] close(3)                    = 0
[pid 11002] write(1, "executing program\n", 18executing program
) = 18
[pid 11002] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11002] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11002] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11002] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11002] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11002] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11002] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11003 attached
 <unfinished ...>
[pid 11003] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11003] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11003] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11002] <... clone3 resumed> => {parent_tid=[11003]}, 88) = 11003
[pid 11002] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11002] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11003] <... futex resumed>)        = 0
[pid 11003] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11002] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11003] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11003] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11002] <... futex resumed>)        = 0
[pid 11002] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11002] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11003] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11003] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11002] <... futex resumed>)        = 0
[pid 11002] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11002] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11003] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11003] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11002] <... futex resumed>)        = 0
[pid 11002] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11002] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11003] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11003] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11002] <... futex resumed>)        = 0
[pid 11002] exit_group(0)               = ?
[pid 11003] +++ exited with 0 +++
[pid 11002] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11002, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11004
./strace-static-x86_64: Process 11004 attached
[pid 11004] set_robust_list(0x5555874576a0, 24) = 0
[pid 11004] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11004] setpgid(0, 0)               = 0
[pid 11004] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11004] write(3, "1000", 4)         = 4
[pid 11004] close(3)                    = 0
[pid 11004] write(1, "executing program\n", 18executing program
) = 18
[pid 11004] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11004] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11004] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11004] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11004] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11004] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11004] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11005]}, 88) = 11005
[pid 11004] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11004] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11004] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11005 attached
 <unfinished ...>
[pid 11005] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11005] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11005] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11005] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11004] <... futex resumed>)        = 0
[pid 11004] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11004] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11005] <... futex resumed>)        = 1
[pid 11005] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11005] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11004] <... futex resumed>)        = 0
[pid 11004] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11004] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11005] <... futex resumed>)        = 1
[pid 11005] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11005] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11004] <... futex resumed>)        = 0
[pid 11004] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11004] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11005] <... futex resumed>)        = 1
[pid 11005] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11005] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11004] <... futex resumed>)        = 0
[pid 11004] exit_group(0)               = ?
[pid 11005] <... futex resumed>)        = ?
[pid 11005] +++ exited with 0 +++
[pid 11004] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11004, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11006
./strace-static-x86_64: Process 11006 attached
[pid 11006] set_robust_list(0x5555874576a0, 24) = 0
[pid 11006] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11006] setpgid(0, 0)               = 0
[pid 11006] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11006] write(3, "1000", 4)         = 4
[pid 11006] close(3)                    = 0
[pid 11006] write(1, "executing program\n", 18executing program
) = 18
[pid 11006] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11006] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11006] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11006] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11006] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11006] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11006] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11007]}, 88) = 11007
./strace-static-x86_64: Process 11007 attached
[pid 11006] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11006] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11006] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11007] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11007] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11007] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11007] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11006] <... futex resumed>)        = 0
[pid 11006] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11006] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11007] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11007] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11006] <... futex resumed>)        = 0
[pid 11006] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11006] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11007] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11007] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11006] <... futex resumed>)        = 0
[pid 11006] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11006] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11007] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11007] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11006] <... futex resumed>)        = 0
[pid 11006] exit_group(0)               = ?
[pid 11007] +++ exited with 0 +++
[pid 11006] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11006, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11008 attached
, child_tidptr=0x555587457690) = 11008
[pid 11008] set_robust_list(0x5555874576a0, 24) = 0
[pid 11008] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11008] setpgid(0, 0)               = 0
[pid 11008] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11008] write(3, "1000", 4)         = 4
[pid 11008] close(3executing program
)                    = 0
[pid 11008] write(1, "executing program\n", 18) = 18
[pid 11008] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11008] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11008] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11008] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11008] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11008] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11008] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11009 attached
 => {parent_tid=[11009]}, 88) = 11009
[pid 11008] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11008] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11008] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11009] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11009] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11009] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11009] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11009] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11008] <... futex resumed>)        = 0
[pid 11008] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11009] <... futex resumed>)        = 0
[pid 11009] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11009] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11009] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11008] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11008] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11009] <... futex resumed>)        = 0
[pid 11009] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11009] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11008] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11009] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11008] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11008] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11009] <... futex resumed>)        = 0
[pid 11009] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11009] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11009] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11008] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11008] exit_group(0)               = ?
[pid 11009] <... futex resumed>)        = ?
[pid 11009] +++ exited with 0 +++
[pid 11008] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11008, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11010 attached
, child_tidptr=0x555587457690) = 11010
[pid 11010] set_robust_list(0x5555874576a0, 24) = 0
[pid 11010] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11010] setpgid(0, 0)               = 0
[pid 11010] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program
) = 3
[pid 11010] write(3, "1000", 4)         = 4
[pid 11010] close(3)                    = 0
[pid 11010] write(1, "executing program\n", 18) = 18
[pid 11010] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11010] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11010] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11010] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11010] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11010] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11010] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11011 attached
 => {parent_tid=[11011]}, 88) = 11011
[pid 11011] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11011] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11011] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11010] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11010] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11011] <... futex resumed>)        = 0
[pid 11011] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11010] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11011] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11011] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11011] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11010] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11010] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11011] <... futex resumed>)        = 0
[pid 11011] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11011] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11011] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11010] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11010] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11011] <... futex resumed>)        = 0
[pid 11010] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11011] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11011] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11011] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11010] <... futex resumed>)        = 0
[pid 11010] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11011] <... futex resumed>)        = 0
[pid 11010] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11011] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11011] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11010] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11011] <... futex resumed>)        = 0
[pid 11010] exit_group(0 <unfinished ...>
[pid 11011] ????( <unfinished ...>
[pid 11010] <... exit_group resumed>)   = ?
[pid 11011] <... ???? resumed>)         = ?
[pid 11011] +++ exited with 0 +++
[pid 11010] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11010, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11012
./strace-static-x86_64: Process 11012 attached
[pid 11012] set_robust_list(0x5555874576a0, 24) = 0
[pid 11012] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11012] setpgid(0, 0)               = 0
[pid 11012] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11012] write(3, "1000", 4)         = 4
[pid 11012] close(3)                    = 0
[pid 11012] write(1, "executing program\n", 18executing program
) = 18
[pid 11012] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11012] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11012] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11012] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11012] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11012] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11012] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11013 attached
 => {parent_tid=[11013]}, 88) = 11013
[pid 11012] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11012] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11012] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11013] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11013] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11013] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11013] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11013] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11012] <... futex resumed>)        = 0
[pid 11012] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11013] <... futex resumed>)        = 0
[pid 11013] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11013] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11013] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11012] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11012] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11013] <... futex resumed>)        = 0
[pid 11013] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11013] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11013] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11012] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11012] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11013] <... futex resumed>)        = 0
[pid 11013] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11013] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11013] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11012] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11012] exit_group(0)               = ?
[pid 11013] <... futex resumed>)        = ?
[pid 11013] +++ exited with 0 +++
[pid 11012] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11012, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11014
./strace-static-x86_64: Process 11014 attached
[pid 11014] set_robust_list(0x5555874576a0, 24) = 0
[pid 11014] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11014] setpgid(0, 0)               = 0
[pid 11014] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11014] write(3, "1000", 4)         = 4
[pid 11014] close(3)                    = 0
executing program
[pid 11014] write(1, "executing program\n", 18) = 18
[pid 11014] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11014] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11014] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11014] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11014] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11014] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11014] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11015 attached
 => {parent_tid=[11015]}, 88) = 11015
[pid 11015] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11014] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11014] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11014] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11015] <... set_robust_list resumed>) = 0
[pid 11015] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11015] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11015] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11014] <... futex resumed>)        = 0
[pid 11014] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11014] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11015] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11015] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11014] <... futex resumed>)        = 0
[pid 11014] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11014] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11015] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11015] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11014] <... futex resumed>)        = 0
[pid 11014] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11014] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11015] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11015] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11014] <... futex resumed>)        = 0
[pid 11014] exit_group(0)               = ?
[pid 11015] +++ exited with 0 +++
[pid 11014] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11014, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11016
./strace-static-x86_64: Process 11016 attached
[pid 11016] set_robust_list(0x5555874576a0, 24) = 0
[pid 11016] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11016] setpgid(0, 0)               = 0
[pid 11016] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11016] write(3, "1000", 4)         = 4
[pid 11016] close(3)                    = 0
executing program
[pid 11016] write(1, "executing program\n", 18) = 18
[pid 11016] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11016] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11016] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11016] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11016] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11016] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11016] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11017]}, 88) = 11017
./strace-static-x86_64: Process 11017 attached
[pid 11016] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11016] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11016] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11017] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11017] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11017] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11017] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11016] <... futex resumed>)        = 0
[pid 11016] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11016] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11017] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11017] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11016] <... futex resumed>)        = 0
[pid 11016] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11016] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11017] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11017] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11016] <... futex resumed>)        = 0
[pid 11016] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11016] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11017] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11017] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11016] <... futex resumed>)        = 0
[pid 11016] exit_group(0 <unfinished ...>
[pid 11017] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11016] <... exit_group resumed>)   = ?
[pid 11017] <... futex resumed>)        = ?
[pid 11017] +++ exited with 0 +++
[pid 11016] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11016, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11018 attached
 <unfinished ...>
[pid 11018] set_robust_list(0x5555874576a0, 24) = 0
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 11018
[pid 11018] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11018] setpgid(0, 0)               = 0
[pid 11018] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11018] write(3, "1000", 4)         = 4
[pid 11018] close(3)                    = 0
executing program
[pid 11018] write(1, "executing program\n", 18) = 18
[pid 11018] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11018] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11018] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11018] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11018] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11018] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11018] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11019 attached
 => {parent_tid=[11019]}, 88) = 11019
[pid 11018] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11018] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11018] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11019] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11019] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11019] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11019] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11019] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11018] <... futex resumed>)        = 0
[pid 11018] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11019] <... futex resumed>)        = 0
[pid 11019] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11019] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11019] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11018] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11018] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11019] <... futex resumed>)        = 0
[pid 11019] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11019] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11019] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11018] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11018] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11019] <... futex resumed>)        = 0
[pid 11019] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11019] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11019] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11018] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11018] exit_group(0)               = ?
[pid 11019] <... futex resumed>)        = ?
[pid 11019] +++ exited with 0 +++
[pid 11018] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11018, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11020
./strace-static-x86_64: Process 11020 attached
[pid 11020] set_robust_list(0x5555874576a0, 24) = 0
[pid 11020] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11020] setpgid(0, 0)               = 0
[pid 11020] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11020] write(3, "1000", 4)         = 4
[pid 11020] close(3)                    = 0
executing program
[pid 11020] write(1, "executing program\n", 18) = 18
[pid 11020] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11020] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11020] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11020] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11020] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11020] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11020] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11021]}, 88) = 11021
./strace-static-x86_64: Process 11021 attached
[pid 11020] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11021] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11020] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11021] <... set_robust_list resumed>) = 0
[pid 11020] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11021] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11020] <... futex resumed>)        = 0
[pid 11021] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11020] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11021] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11021] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11021] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11020] <... futex resumed>)        = 0
[pid 11020] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11021] <... futex resumed>)        = 0
[pid 11021] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11021] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11021] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11020] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11020] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11021] <... futex resumed>)        = 0
[pid 11020] <... futex resumed>)        = 1
[pid 11021] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11020] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11021] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11021] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11020] <... futex resumed>)        = 0
[pid 11021] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11020] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11021] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11020] <... futex resumed>)        = 0
[pid 11021] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11020] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11021] <... futex resumed>)        = 0
[pid 11020] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11021] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11020] exit_group(0 <unfinished ...>
[pid 11021] <... futex resumed>)        = ?
[pid 11020] <... exit_group resumed>)   = ?
[pid 11021] +++ exited with 0 +++
[pid 11020] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11020, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11022
./strace-static-x86_64: Process 11022 attached
[pid 11022] set_robust_list(0x5555874576a0, 24) = 0
[pid 11022] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11022] setpgid(0, 0)               = 0
[pid 11022] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11022] write(3, "1000", 4)         = 4
[pid 11022] close(3)                    = 0
[pid 11022] write(1, "executing program\n", 18executing program
) = 18
[pid 11022] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11022] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11022] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11022] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11022] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11022] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11022] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11023 attached
 => {parent_tid=[11023]}, 88) = 11023
[pid 11023] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11023] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11023] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11022] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11022] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11023] <... futex resumed>)        = 0
[pid 11023] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11023] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11023] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11022] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11022] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11023] <... futex resumed>)        = 0
[pid 11023] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11023] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11023] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11022] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11022] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11023] <... futex resumed>)        = 0
[pid 11023] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11023] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11022] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11023] <... futex resumed>)        = 0
[pid 11023] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11022] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11022] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11023] <... futex resumed>)        = 0
[pid 11023] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11022] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11023] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11023] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11023] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11022] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11022] exit_group(0)               = ?
[pid 11023] <... futex resumed>)        = ?
[pid 11023] +++ exited with 0 +++
[pid 11022] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11022, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11024
./strace-static-x86_64: Process 11024 attached
[pid 11024] set_robust_list(0x5555874576a0, 24) = 0
[pid 11024] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11024] setpgid(0, 0)               = 0
[pid 11024] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11024] write(3, "1000", 4)         = 4
[pid 11024] close(3)                    = 0
executing program
[pid 11024] write(1, "executing program\n", 18) = 18
[pid 11024] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11024] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11024] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11024] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11024] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11024] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11024] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11025 attached
 => {parent_tid=[11025]}, 88) = 11025
[pid 11025] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11025] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11025] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11024] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11024] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11025] <... futex resumed>)        = 0
[pid 11025] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11024] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11025] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11025] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11024] <... futex resumed>)        = 0
[pid 11024] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11024] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11025] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11025] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11024] <... futex resumed>)        = 0
[pid 11024] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11024] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11025] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11025] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11024] <... futex resumed>)        = 0
[pid 11024] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11024] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11025] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11025] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11024] <... futex resumed>)        = 0
[pid 11024] exit_group(0)               = ?
[pid 11025] +++ exited with 0 +++
[pid 11024] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11024, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11026
./strace-static-x86_64: Process 11026 attached
[pid 11026] set_robust_list(0x5555874576a0, 24) = 0
[pid 11026] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11026] setpgid(0, 0)               = 0
[pid 11026] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11026] write(3, "1000", 4)         = 4
[pid 11026] close(3)                    = 0
executing program
[pid 11026] write(1, "executing program\n", 18) = 18
[pid 11026] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11026] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11026] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11026] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11026] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11026] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11026] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11027 attached
 => {parent_tid=[11027]}, 88) = 11027
[pid 11026] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11026] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11026] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11027] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11027] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11027] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11027] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11026] <... futex resumed>)        = 0
[pid 11026] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11026] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11027] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11027] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11026] <... futex resumed>)        = 0
[pid 11026] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11027] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11026] <... futex resumed>)        = 0
[pid 11026] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11027] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11027] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11026] <... futex resumed>)        = 0
[pid 11026] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11026] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11027] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11027] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11026] <... futex resumed>)        = 0
[pid 11026] exit_group(0)               = ?
[pid 11027] +++ exited with 0 +++
[pid 11026] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11026, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11028 attached
, child_tidptr=0x555587457690) = 11028
[pid 11028] set_robust_list(0x5555874576a0, 24) = 0
[pid 11028] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11028] setpgid(0, 0)               = 0
[pid 11028] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11028] write(3, "1000", 4)         = 4
[pid 11028] close(3)                    = 0
[pid 11028] write(1, "executing program\n", 18executing program
) = 18
[pid 11028] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11028] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11028] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11028] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11028] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11028] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11028] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11029 attached
 => {parent_tid=[11029]}, 88) = 11029
[pid 11029] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11029] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11029] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11028] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11028] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11029] <... futex resumed>)        = 0
[pid 11029] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11029] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11029] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11028] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11028] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11029] <... futex resumed>)        = 0
[pid 11029] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11029] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11029] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11028] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11028] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11029] <... futex resumed>)        = 0
[pid 11029] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11029] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11029] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11028] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11028] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11029] <... futex resumed>)        = 0
[pid 11029] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11029] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11029] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11028] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11028] exit_group(0)               = ?
[pid 11029] <... futex resumed>)        = ?
[pid 11029] +++ exited with 0 +++
[pid 11028] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11028, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11030
./strace-static-x86_64: Process 11030 attached
[pid 11030] set_robust_list(0x5555874576a0, 24) = 0
[pid 11030] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11030] setpgid(0, 0)               = 0
[pid 11030] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11030] write(3, "1000", 4)         = 4
[pid 11030] close(3)                    = 0
executing program
[pid 11030] write(1, "executing program\n", 18) = 18
[pid 11030] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11030] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11030] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11030] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11030] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11030] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11030] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11031 attached
 => {parent_tid=[11031]}, 88) = 11031
[pid 11030] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11030] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11030] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11031] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11031] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11031] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11031] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11030] <... futex resumed>)        = 0
[pid 11030] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11030] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11031] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11031] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11030] <... futex resumed>)        = 0
[pid 11030] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11030] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11031] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11031] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11030] <... futex resumed>)        = 0
[pid 11030] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11030] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11031] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11031] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11030] <... futex resumed>)        = 0
[pid 11030] exit_group(0)               = ?
[pid 11031] +++ exited with 0 +++
[pid 11030] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11030, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11032 attached
, child_tidptr=0x555587457690) = 11032
[pid 11032] set_robust_list(0x5555874576a0, 24) = 0
[pid 11032] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11032] setpgid(0, 0)               = 0
[pid 11032] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11032] write(3, "1000", 4)         = 4
[pid 11032] close(3)                    = 0
executing program
[pid 11032] write(1, "executing program\n", 18) = 18
[pid 11032] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11032] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11032] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11032] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11032] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11032] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11032] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11033]}, 88) = 11033
[pid 11032] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11032] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11032] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11033 attached
 <unfinished ...>
[pid 11033] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11033] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11033] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11033] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11032] <... futex resumed>)        = 0
[pid 11032] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11032] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11033] <... futex resumed>)        = 1
[pid 11033] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11033] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11032] <... futex resumed>)        = 0
[pid 11032] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11032] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11033] <... futex resumed>)        = 1
[pid 11033] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11033] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11032] <... futex resumed>)        = 0
[pid 11032] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11032] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11033] <... futex resumed>)        = 1
[pid 11033] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11033] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11032] <... futex resumed>)        = 0
[pid 11033] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11032] exit_group(0 <unfinished ...>
[pid 11033] <... futex resumed>)        = ?
[pid 11032] <... exit_group resumed>)   = ?
[pid 11033] +++ exited with 0 +++
[pid 11032] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11032, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11034
./strace-static-x86_64: Process 11034 attached
[pid 11034] set_robust_list(0x5555874576a0, 24) = 0
[pid 11034] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11034] setpgid(0, 0)               = 0
[pid 11034] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11034] write(3, "1000", 4)         = 4
[pid 11034] close(3)                    = 0
[pid 11034] write(1, "executing program\n", 18executing program
) = 18
[pid 11034] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11034] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11034] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11034] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11034] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11034] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11034] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11035 attached
 => {parent_tid=[11035]}, 88) = 11035
[pid 11035] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11035] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11035] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11034] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11034] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11035] <... futex resumed>)        = 0
[pid 11035] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11035] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11035] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11034] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11034] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11035] <... futex resumed>)        = 0
[pid 11035] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11035] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11035] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11034] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11034] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11035] <... futex resumed>)        = 0
[pid 11035] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11035] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11035] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11034] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11034] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11035] <... futex resumed>)        = 0
[pid 11035] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11034] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11035] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11035] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11034] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11034] exit_group(0)               = ?
[pid 11035] <... futex resumed>)        = ?
[pid 11035] +++ exited with 0 +++
[pid 11034] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11034, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11036
./strace-static-x86_64: Process 11036 attached
[pid 11036] set_robust_list(0x5555874576a0, 24) = 0
[pid 11036] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11036] setpgid(0, 0)               = 0
[pid 11036] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11036] write(3, "1000", 4)         = 4
[pid 11036] close(3)                    = 0
executing program
[pid 11036] write(1, "executing program\n", 18) = 18
[pid 11036] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11036] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11036] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11036] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11036] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11036] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11036] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11037 attached
 <unfinished ...>
[pid 11037] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11037] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11037] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11036] <... clone3 resumed> => {parent_tid=[11037]}, 88) = 11037
[pid 11036] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11036] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11037] <... futex resumed>)        = 0
[pid 11037] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11037] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11037] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11036] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11036] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11036] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11037] <... futex resumed>)        = 0
[pid 11037] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11037] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11036] <... futex resumed>)        = 0
[pid 11036] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11036] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11037] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11037] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11036] <... futex resumed>)        = 0
[pid 11036] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11036] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11037] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11037] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11036] <... futex resumed>)        = 0
[pid 11036] exit_group(0)               = ?
[pid 11037] +++ exited with 0 +++
[pid 11036] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11036, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11038
./strace-static-x86_64: Process 11038 attached
[pid 11038] set_robust_list(0x5555874576a0, 24) = 0
[pid 11038] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11038] setpgid(0, 0)               = 0
[pid 11038] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11038] write(3, "1000", 4)         = 4
[pid 11038] close(3)                    = 0
executing program
[pid 11038] write(1, "executing program\n", 18) = 18
[pid 11038] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11038] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11038] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11038] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11038] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11038] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11038] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11039]}, 88) = 11039
[pid 11038] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11038] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11038] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11039 attached
 <unfinished ...>
[pid 11039] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11039] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11039] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11039] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11038] <... futex resumed>)        = 0
[pid 11038] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11038] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11039] <... futex resumed>)        = 1
[pid 11039] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11039] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11038] <... futex resumed>)        = 0
[pid 11038] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11038] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11039] <... futex resumed>)        = 1
[pid 11039] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11039] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11038] <... futex resumed>)        = 0
[pid 11038] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11038] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11039] <... futex resumed>)        = 1
[pid 11039] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11039] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11038] <... futex resumed>)        = 0
[pid 11038] exit_group(0)               = ?
[pid 11039] <... futex resumed>)        = ?
[pid 11039] +++ exited with 0 +++
[pid 11038] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11038, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11040
./strace-static-x86_64: Process 11040 attached
[pid 11040] set_robust_list(0x5555874576a0, 24) = 0
[pid 11040] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11040] setpgid(0, 0)               = 0
[pid 11040] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11040] write(3, "1000", 4executing program
)         = 4
[pid 11040] close(3)                    = 0
[pid 11040] write(1, "executing program\n", 18) = 18
[pid 11040] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11040] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11040] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11040] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11040] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11040] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11040] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11041]}, 88) = 11041
[pid 11040] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11040] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11040] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11041 attached
 <unfinished ...>
[pid 11041] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11041] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11041] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11041] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11040] <... futex resumed>)        = 0
[pid 11040] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11040] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11041] <... futex resumed>)        = 1
[pid 11041] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11041] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11040] <... futex resumed>)        = 0
[pid 11040] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11040] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11041] <... futex resumed>)        = 1
[pid 11041] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11041] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11040] <... futex resumed>)        = 0
[pid 11040] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11040] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11041] <... futex resumed>)        = 1
[pid 11041] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11041] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11040] <... futex resumed>)        = 0
[pid 11040] exit_group(0)               = ?
[pid 11041] <... futex resumed>)        = ?
[pid 11041] +++ exited with 0 +++
[pid 11040] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11040, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11042
./strace-static-x86_64: Process 11042 attached
[pid 11042] set_robust_list(0x5555874576a0, 24) = 0
[pid 11042] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11042] setpgid(0, 0)               = 0
[pid 11042] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11042] write(3, "1000", 4)         = 4
[pid 11042] close(3)                    = 0
executing program
[pid 11042] write(1, "executing program\n", 18) = 18
[pid 11042] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11042] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11042] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11042] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11042] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11042] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11042] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11043 attached
 => {parent_tid=[11043]}, 88) = 11043
[pid 11042] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11042] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11042] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11043] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11043] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11043] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11043] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11042] <... futex resumed>)        = 0
[pid 11042] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11042] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11043] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11043] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11042] <... futex resumed>)        = 0
[pid 11042] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11042] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11043] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11043] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11042] <... futex resumed>)        = 0
[pid 11042] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11042] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11043] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11043] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11042] <... futex resumed>)        = 0
[pid 11042] exit_group(0)               = ?
[pid 11043] +++ exited with 0 +++
[pid 11042] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11042, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11044 attached
 <unfinished ...>
[pid 11044] set_robust_list(0x5555874576a0, 24) = 0
[pid 11044] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11044] setpgid(0, 0 <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 11044
[pid 11044] <... setpgid resumed>)      = 0
[pid 11044] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11044] write(3, "1000", 4)         = 4
[pid 11044] close(3)                    = 0
[pid 11044] write(1, "executing program\n", 18executing program
) = 18
[pid 11044] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11044] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11044] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11044] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11044] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11044] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11044] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11045]}, 88) = 11045
[pid 11044] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11044] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11044] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11045 attached
 <unfinished ...>
[pid 11045] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11045] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11045] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11045] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11044] <... futex resumed>)        = 0
[pid 11044] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11044] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11045] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11045] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11044] <... futex resumed>)        = 0
[pid 11044] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11044] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11045] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11045] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11044] <... futex resumed>)        = 0
[pid 11044] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11044] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11045] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11045] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11044] <... futex resumed>)        = 0
[pid 11044] exit_group(0)               = ?
[pid 11045] +++ exited with 0 +++
[pid 11044] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11044, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11046
./strace-static-x86_64: Process 11046 attached
[pid 11046] set_robust_list(0x5555874576a0, 24) = 0
[pid 11046] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11046] setpgid(0, 0)               = 0
[pid 11046] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11046] write(3, "1000", 4)         = 4
[pid 11046] close(3)                    = 0
[pid 11046] write(1, "executing program\n", 18executing program
) = 18
[pid 11046] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11046] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11046] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11046] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11046] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11046] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11046] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11047]}, 88) = 11047
[pid 11046] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11046] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11046] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11047 attached
 <unfinished ...>
[pid 11047] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11047] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11047] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11047] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11046] <... futex resumed>)        = 0
[pid 11046] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11046] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11047] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11047] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11046] <... futex resumed>)        = 0
[pid 11046] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11046] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11047] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11047] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11046] <... futex resumed>)        = 0
[pid 11046] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11046] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11047] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11047] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11046] <... futex resumed>)        = 0
[pid 11046] exit_group(0)               = ?
[pid 11047] +++ exited with 0 +++
[pid 11046] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11046, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11048 attached
, child_tidptr=0x555587457690) = 11048
[pid 11048] set_robust_list(0x5555874576a0, 24) = 0
[pid 11048] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11048] setpgid(0, 0)               = 0
[pid 11048] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11048] write(3, "1000", 4)         = 4
[pid 11048] close(3)                    = 0
executing program
[pid 11048] write(1, "executing program\n", 18) = 18
[pid 11048] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11048] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11048] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11048] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11048] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11048] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11048] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11049]}, 88) = 11049
./strace-static-x86_64: Process 11049 attached
[pid 11049] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11049] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11049] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11048] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11048] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11049] <... futex resumed>)        = 0
[pid 11049] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11049] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11049] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11048] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11048] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11049] <... futex resumed>)        = 0
[pid 11049] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11049] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11049] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11048] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11048] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11049] <... futex resumed>)        = 0
[pid 11049] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11049] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11048] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11049] <... futex resumed>)        = 0
[pid 11049] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11048] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11048] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11049] <... futex resumed>)        = 0
[pid 11049] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11048] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11049] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11049] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11049] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11048] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11048] exit_group(0)               = ?
[pid 11049] <... futex resumed>)        = ?
[pid 11049] +++ exited with 0 +++
[pid 11048] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11048, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11050
./strace-static-x86_64: Process 11050 attached
[pid 11050] set_robust_list(0x5555874576a0, 24) = 0
[pid 11050] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11050] setpgid(0, 0)               = 0
[pid 11050] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11050] write(3, "1000", 4)         = 4
[pid 11050] close(3)                    = 0
[pid 11050] write(1, "executing program\n", 18executing program
) = 18
[pid 11050] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11050] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11050] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11050] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11050] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11050] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11050] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11051 attached
 => {parent_tid=[11051]}, 88) = 11051
[pid 11051] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11051] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11051] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11050] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11050] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11051] <... futex resumed>)        = 0
[pid 11050] <... futex resumed>)        = 1
[pid 11051] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11051] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11051] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11050] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11050] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11051] <... futex resumed>)        = 0
[pid 11051] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11051] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11051] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11050] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11050] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11051] <... futex resumed>)        = 0
[pid 11051] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11051] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11051] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11050] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11050] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11051] <... futex resumed>)        = 0
[pid 11051] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11050] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11051] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11051] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11051] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11050] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11050] exit_group(0)               = ?
[pid 11051] <... futex resumed>)        = ?
[pid 11051] +++ exited with 0 +++
[pid 11050] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11050, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11052 attached
, child_tidptr=0x555587457690) = 11052
[pid 11052] set_robust_list(0x5555874576a0, 24) = 0
[pid 11052] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11052] setpgid(0, 0)               = 0
[pid 11052] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11052] write(3, "1000", 4)         = 4
[pid 11052] close(3)                    = 0
[pid 11052] write(1, "executing program\n", 18executing program
) = 18
[pid 11052] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11052] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11052] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11052] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11052] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11052] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11052] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11053 attached
 => {parent_tid=[11053]}, 88) = 11053
[pid 11052] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11052] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11052] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11053] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11053] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11053] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11053] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11052] <... futex resumed>)        = 0
[pid 11052] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11052] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11053] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11053] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11052] <... futex resumed>)        = 0
[pid 11052] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11052] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11053] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11053] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11052] <... futex resumed>)        = 0
[pid 11052] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11052] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11053] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11053] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11052] <... futex resumed>)        = 0
[pid 11052] exit_group(0)               = ?
[pid 11053] +++ exited with 0 +++
[pid 11052] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11052, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11054 attached
, child_tidptr=0x555587457690) = 11054
[pid 11054] set_robust_list(0x5555874576a0, 24) = 0
[pid 11054] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11054] setpgid(0, 0)               = 0
[pid 11054] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11054] write(3, "1000", 4)         = 4
[pid 11054] close(3)                    = 0
[pid 11054] write(1, "executing program\n", 18executing program
) = 18
[pid 11054] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11054] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11054] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11054] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11054] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11054] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11054] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11055 attached
 => {parent_tid=[11055]}, 88) = 11055
[pid 11055] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11055] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11055] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11054] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11054] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11055] <... futex resumed>)        = 0
[pid 11055] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11055] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11055] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11054] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11054] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11055] <... futex resumed>)        = 0
[pid 11055] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11055] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11055] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11054] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11054] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11055] <... futex resumed>)        = 0
[pid 11055] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11055] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11055] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11054] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11054] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11055] <... futex resumed>)        = 0
[pid 11055] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11054] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11055] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11055] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11055] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11054] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11054] exit_group(0)               = ?
[pid 11055] <... futex resumed>)        = ?
[pid 11055] +++ exited with 0 +++
[pid 11054] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11054, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11056
./strace-static-x86_64: Process 11056 attached
[pid 11056] set_robust_list(0x5555874576a0, 24) = 0
[pid 11056] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11056] setpgid(0, 0)               = 0
[pid 11056] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11056] write(3, "1000", 4)         = 4
[pid 11056] close(3)                    = 0
[pid 11056] write(1, "executing program\n", 18executing program
) = 18
[pid 11056] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11056] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11056] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11056] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11056] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11056] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11056] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11057 attached
 => {parent_tid=[11057]}, 88) = 11057
[pid 11057] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11056] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11057] <... set_robust_list resumed>) = 0
[pid 11056] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11057] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11056] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11057] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11056] <... futex resumed>)        = 0
[pid 11057] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11056] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11057] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11057] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11056] <... futex resumed>)        = 0
[pid 11056] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11056] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11057] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11057] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11056] <... futex resumed>)        = 0
[pid 11056] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11056] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11057] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11057] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11056] <... futex resumed>)        = 0
[pid 11056] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11056] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11057] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11057] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11056] <... futex resumed>)        = 0
[pid 11056] exit_group(0)               = ?
[pid 11057] +++ exited with 0 +++
[pid 11056] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11056, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11058
./strace-static-x86_64: Process 11058 attached
[pid 11058] set_robust_list(0x5555874576a0, 24) = 0
[pid 11058] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11058] setpgid(0, 0)               = 0
[pid 11058] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11058] write(3, "1000", 4)         = 4
[pid 11058] close(3)                    = 0
executing program
[pid 11058] write(1, "executing program\n", 18) = 18
[pid 11058] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11058] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11058] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11058] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11058] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11058] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11058] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11059 attached
 <unfinished ...>
[pid 11059] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11059] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11059] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11058] <... clone3 resumed> => {parent_tid=[11059]}, 88) = 11059
[pid 11058] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11058] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11059] <... futex resumed>)        = 0
[pid 11059] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11058] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11059] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11059] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11059] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11058] <... futex resumed>)        = 0
[pid 11058] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11059] <... futex resumed>)        = 0
[pid 11059] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11058] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11059] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11059] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11058] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11058] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11059] <... futex resumed>)        = 0
[pid 11059] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11059] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11059] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11058] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11058] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11059] <... futex resumed>)        = 0
[pid 11059] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11059] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11059] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11058] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11058] exit_group(0 <unfinished ...>
[pid 11059] <... futex resumed>)        = ?
[pid 11058] <... exit_group resumed>)   = ?
[pid 11059] +++ exited with 0 +++
[pid 11058] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11058, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11060 attached
, child_tidptr=0x555587457690) = 11060
[pid 11060] set_robust_list(0x5555874576a0, 24) = 0
[pid 11060] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11060] setpgid(0, 0)               = 0
[pid 11060] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11060] write(3, "1000", 4)         = 4
[pid 11060] close(3)                    = 0
[pid 11060] write(1, "executing program\n", 18executing program
) = 18
[pid 11060] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11060] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11060] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11060] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11060] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11060] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11060] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11061 attached
 => {parent_tid=[11061]}, 88) = 11061
[pid 11060] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11060] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11060] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11061] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11061] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11061] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11061] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11060] <... futex resumed>)        = 0
[pid 11060] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11060] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11061] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11061] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11060] <... futex resumed>)        = 0
[pid 11060] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11060] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11061] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11061] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11060] <... futex resumed>)        = 0
[pid 11060] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11060] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11061] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11061] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11060] <... futex resumed>)        = 0
[pid 11061] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11060] exit_group(0 <unfinished ...>
[pid 11061] <... futex resumed>)        = ?
[pid 11060] <... exit_group resumed>)   = ?
[pid 11061] +++ exited with 0 +++
[pid 11060] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11060, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11062
./strace-static-x86_64: Process 11062 attached
[pid 11062] set_robust_list(0x5555874576a0, 24) = 0
[pid 11062] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11062] setpgid(0, 0)               = 0
[pid 11062] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11062] write(3, "1000", 4)         = 4
[pid 11062] close(3)                    = 0
[pid 11062] write(1, "executing program\n", 18executing program
) = 18
[pid 11062] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11062] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11062] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11062] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11062] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11062] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11062] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11063 attached
 => {parent_tid=[11063]}, 88) = 11063
[pid 11063] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11063] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11063] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11062] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11062] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11063] <... futex resumed>)        = 0
[pid 11063] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11063] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11063] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11062] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11062] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11063] <... futex resumed>)        = 0
[pid 11063] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11063] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11063] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11062] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11062] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11063] <... futex resumed>)        = 0
[pid 11063] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11063] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11063] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11062] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11062] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11063] <... futex resumed>)        = 0
[pid 11063] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11063] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11063] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11062] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11062] exit_group(0)               = ?
[pid 11063] <... futex resumed>)        = ?
[pid 11063] +++ exited with 0 +++
[pid 11062] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11062, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11064
./strace-static-x86_64: Process 11064 attached
[pid 11064] set_robust_list(0x5555874576a0, 24) = 0
[pid 11064] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11064] setpgid(0, 0)               = 0
[pid 11064] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11064] write(3, "1000", 4)         = 4
[pid 11064] close(3)                    = 0
executing program
[pid 11064] write(1, "executing program\n", 18) = 18
[pid 11064] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11064] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11064] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11064] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11064] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11064] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11064] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11065 attached
 => {parent_tid=[11065]}, 88) = 11065
[pid 11064] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11064] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11064] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11065] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11065] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11065] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11065] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11064] <... futex resumed>)        = 0
[pid 11064] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11064] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11065] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11065] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11064] <... futex resumed>)        = 0
[pid 11064] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11064] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11065] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11065] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11064] <... futex resumed>)        = 0
[pid 11064] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11064] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11065] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11065] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11064] <... futex resumed>)        = 0
[pid 11064] exit_group(0)               = ?
[pid 11065] +++ exited with 0 +++
[pid 11064] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11064, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11066
./strace-static-x86_64: Process 11066 attached
[pid 11066] set_robust_list(0x5555874576a0, 24) = 0
[pid 11066] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11066] setpgid(0, 0)               = 0
[pid 11066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11066] write(3, "1000", 4)         = 4
[pid 11066] close(3)                    = 0
[pid 11066] write(1, "executing program\n", 18executing program
) = 18
[pid 11066] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11066] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11066] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11066] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11066] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11066] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11066] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11067 attached
 => {parent_tid=[11067]}, 88) = 11067
[pid 11067] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11067] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11067] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11066] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11066] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11067] <... futex resumed>)        = 0
[pid 11067] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11066] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11067] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11067] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11066] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11067] <... futex resumed>)        = 0
[pid 11067] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11066] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11067] <... futex resumed>)        = 0
[pid 11067] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11066] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11067] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11066] <... futex resumed>)        = 0
[pid 11066] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11066] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11067] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11067] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11066] <... futex resumed>)        = 0
[pid 11066] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11066] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11067] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11067] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11066] <... futex resumed>)        = 0
[pid 11066] exit_group(0)               = ?
[pid 11067] +++ exited with 0 +++
[pid 11066] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11066, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11068 attached
, child_tidptr=0x555587457690) = 11068
[pid 11068] set_robust_list(0x5555874576a0, 24) = 0
[pid 11068] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11068] setpgid(0, 0)               = 0
[pid 11068] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11068] write(3, "1000", 4)         = 4
[pid 11068] close(3)                    = 0
[pid 11068] write(1, "executing program\n", 18executing program
) = 18
[pid 11068] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11068] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11068] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11068] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11068] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11068] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11068] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11069 attached
 => {parent_tid=[11069]}, 88) = 11069
[pid 11069] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11069] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11069] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11068] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11068] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11068] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11069] <... futex resumed>)        = 0
[pid 11069] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11069] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11068] <... futex resumed>)        = 0
[pid 11068] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11068] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11069] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11069] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11068] <... futex resumed>)        = 0
[pid 11068] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11068] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11069] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11069] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11068] <... futex resumed>)        = 0
[pid 11068] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11068] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11069] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11069] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11068] <... futex resumed>)        = 0
[pid 11068] exit_group(0)               = ?
[pid 11069] +++ exited with 0 +++
[pid 11068] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11068, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11070
./strace-static-x86_64: Process 11070 attached
[pid 11070] set_robust_list(0x5555874576a0, 24) = 0
[pid 11070] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11070] setpgid(0, 0)               = 0
[pid 11070] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11070] write(3, "1000", 4)         = 4
[pid 11070] close(3)                    = 0
[pid 11070] write(1, "executing program\n", 18executing program
) = 18
[pid 11070] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11070] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11070] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11070] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11070] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11070] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11070] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11071 attached
 => {parent_tid=[11071]}, 88) = 11071
[pid 11070] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11070] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11070] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11071] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11071] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11071] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11071] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11071] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11070] <... futex resumed>)        = 0
[pid 11070] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11071] <... futex resumed>)        = 0
[pid 11071] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11071] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11071] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11070] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11070] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11071] <... futex resumed>)        = 0
[pid 11071] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11071] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11071] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11070] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11070] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11071] <... futex resumed>)        = 0
[pid 11071] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11070] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11071] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11071] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11071] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11070] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11070] exit_group(0)               = ?
[pid 11071] <... futex resumed>)        = ?
[pid 11071] +++ exited with 0 +++
[pid 11070] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11070, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11072
./strace-static-x86_64: Process 11072 attached
[pid 11072] set_robust_list(0x5555874576a0, 24) = 0
[pid 11072] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11072] setpgid(0, 0)               = 0
[pid 11072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11072] write(3, "1000", 4)         = 4
[pid 11072] close(3)                    = 0
executing program
[pid 11072] write(1, "executing program\n", 18) = 18
[pid 11072] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11072] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11072] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11072] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11072] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11072] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11072] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11073 attached
 => {parent_tid=[11073]}, 88) = 11073
[pid 11072] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11072] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11072] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11073] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11073] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11073] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11073] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11072] <... futex resumed>)        = 0
[pid 11072] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11072] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11073] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11073] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11072] <... futex resumed>)        = 0
[pid 11072] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11072] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11073] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11073] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11072] <... futex resumed>)        = 0
[pid 11072] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11072] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11073] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11073] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11072] <... futex resumed>)        = 0
[pid 11072] exit_group(0)               = ?
[pid 11073] +++ exited with 0 +++
[pid 11072] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11072, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11074
./strace-static-x86_64: Process 11074 attached
[pid 11074] set_robust_list(0x5555874576a0, 24) = 0
[pid 11074] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11074] setpgid(0, 0)               = 0
[pid 11074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11074] write(3, "1000", 4)         = 4
[pid 11074] close(3)                    = 0
[pid 11074] write(1, "executing program\n", 18executing program
) = 18
[pid 11074] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11074] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11074] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11074] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11074] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11074] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11074] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11075]}, 88) = 11075
./strace-static-x86_64: Process 11075 attached
[pid 11075] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11075] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11075] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11074] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11074] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11075] <... futex resumed>)        = 0
[pid 11075] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11074] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11075] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11075] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11074] <... futex resumed>)        = 0
[pid 11074] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11074] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11075] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11075] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11074] <... futex resumed>)        = 0
[pid 11074] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11074] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11075] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11075] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11074] <... futex resumed>)        = 0
[pid 11074] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11074] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11075] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11075] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11074] <... futex resumed>)        = 0
[pid 11074] exit_group(0)               = ?
[pid 11075] +++ exited with 0 +++
[pid 11074] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11074, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11076
./strace-static-x86_64: Process 11076 attached
[pid 11076] set_robust_list(0x5555874576a0, 24) = 0
[pid 11076] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11076] setpgid(0, 0)               = 0
[pid 11076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11076] write(3, "1000", 4)         = 4
[pid 11076] close(3)                    = 0
[pid 11076] write(1, "executing program\n", 18executing program
) = 18
[pid 11076] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11076] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11076] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11076] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11076] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11076] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11076] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11077 attached
 <unfinished ...>
[pid 11077] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11076] <... clone3 resumed> => {parent_tid=[11077]}, 88) = 11077
[pid 11077] <... set_robust_list resumed>) = 0
[pid 11076] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11077] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11076] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11077] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11076] <... futex resumed>)        = 0
[pid 11076] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11077] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11077] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11076] <... futex resumed>)        = 0
[pid 11076] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11076] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11077] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11077] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11076] <... futex resumed>)        = 0
[pid 11076] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11076] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11077] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11077] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11076] <... futex resumed>)        = 0
[pid 11076] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11076] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11077] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11077] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11076] <... futex resumed>)        = 0
[pid 11076] exit_group(0 <unfinished ...>
[pid 11077] ????( <unfinished ...>
[pid 11076] <... exit_group resumed>)   = ?
[pid 11077] <... ???? resumed>)         = ?
[pid 11077] +++ exited with 0 +++
[pid 11076] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11076, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11078
./strace-static-x86_64: Process 11078 attached
[pid 11078] set_robust_list(0x5555874576a0, 24) = 0
[pid 11078] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11078] setpgid(0, 0)               = 0
[pid 11078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11078] write(3, "1000", 4)         = 4
[pid 11078] close(3)                    = 0
[pid 11078] write(1, "executing program\n", 18executing program
) = 18
[pid 11078] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11078] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11078] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11078] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11078] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11078] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11078] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11079 attached
 => {parent_tid=[11079]}, 88) = 11079
[pid 11079] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11079] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11079] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11078] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11078] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11079] <... futex resumed>)        = 0
[pid 11079] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11078] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11079] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11079] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11079] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11078] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11078] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11079] <... futex resumed>)        = 0
[pid 11079] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11078] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11079] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11079] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11079] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11078] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11078] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11079] <... futex resumed>)        = 0
[pid 11079] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11079] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11079] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11078] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11078] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11079] <... futex resumed>)        = 0
[pid 11079] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11078] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11079] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11079] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11078] <... futex resumed>)        = 0
[pid 11078] exit_group(0)               = ?
[pid 11079] +++ exited with 0 +++
[pid 11078] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11078, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11080
./strace-static-x86_64: Process 11080 attached
[pid 11080] set_robust_list(0x5555874576a0, 24) = 0
[pid 11080] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11080] setpgid(0, 0)               = 0
[pid 11080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11080] write(3, "1000", 4)         = 4
[pid 11080] close(3)                    = 0
[pid 11080] write(1, "executing program\n", 18executing program
) = 18
[pid 11080] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11080] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11080] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11080] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11080] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11080] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11080] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11081 attached
 => {parent_tid=[11081]}, 88) = 11081
[pid 11080] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11081] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11080] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11081] <... set_robust_list resumed>) = 0
[pid 11081] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11081] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11080] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11080] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11081] <... futex resumed>)        = 0
[pid 11081] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11081] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11080] <... futex resumed>)        = 0
[pid 11080] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11080] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11081] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11081] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11080] <... futex resumed>)        = 0
[pid 11080] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11080] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11081] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11081] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11080] <... futex resumed>)        = 0
[pid 11080] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11080] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11081] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11081] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11080] <... futex resumed>)        = 0
[pid 11080] exit_group(0)               = ?
[pid 11081] +++ exited with 0 +++
[pid 11080] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11080, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11082
./strace-static-x86_64: Process 11082 attached
[pid 11082] set_robust_list(0x5555874576a0, 24) = 0
[pid 11082] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11082] setpgid(0, 0)               = 0
[pid 11082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11082] write(3, "1000", 4)         = 4
[pid 11082] close(3)                    = 0
[pid 11082] write(1, "executing program\n", 18executing program
) = 18
[pid 11082] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11082] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11082] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11082] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11082] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11082] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11082] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11083 attached
 => {parent_tid=[11083]}, 88) = 11083
[pid 11083] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11083] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11083] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11082] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11082] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11083] <... futex resumed>)        = 0
[pid 11083] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11083] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11083] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11082] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11082] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11083] <... futex resumed>)        = 0
[pid 11083] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11083] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11083] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11082] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11082] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11083] <... futex resumed>)        = 0
[pid 11083] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11083] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11083] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11082] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11082] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11083] <... futex resumed>)        = 0
[pid 11083] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11083] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11083] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11082] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11082] exit_group(0)               = ?
[pid 11083] <... futex resumed>)        = ?
[pid 11083] +++ exited with 0 +++
[pid 11082] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11082, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11084
./strace-static-x86_64: Process 11084 attached
[pid 11084] set_robust_list(0x5555874576a0, 24) = 0
[pid 11084] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11084] setpgid(0, 0)               = 0
[pid 11084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11084] write(3, "1000", 4)         = 4
[pid 11084] close(3)                    = 0
[pid 11084] write(1, "executing program\n", 18executing program
) = 18
[pid 11084] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11084] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11084] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11084] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11084] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11084] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11084] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11085]}, 88) = 11085
./strace-static-x86_64: Process 11085 attached
[pid 11085] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11085] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11085] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11084] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11084] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11085] <... futex resumed>)        = 0
[pid 11085] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11085] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11085] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11084] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11084] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11085] <... futex resumed>)        = 0
[pid 11085] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11085] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11085] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11084] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11084] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11085] <... futex resumed>)        = 0
[pid 11085] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11085] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11085] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11084] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11084] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11085] <... futex resumed>)        = 0
[pid 11085] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11084] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11085] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11085] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11085] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11084] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11084] exit_group(0)               = ?
[pid 11085] <... futex resumed>)        = ?
[pid 11085] +++ exited with 0 +++
[pid 11084] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11084, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11086
./strace-static-x86_64: Process 11086 attached
[pid 11086] set_robust_list(0x5555874576a0, 24) = 0
[pid 11086] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11086] setpgid(0, 0)               = 0
[pid 11086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11086] write(3, "1000", 4)         = 4
[pid 11086] close(3executing program
)                    = 0
[pid 11086] write(1, "executing program\n", 18) = 18
[pid 11086] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11086] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11086] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11086] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11086] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11086] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11086] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11087 attached
 => {parent_tid=[11087]}, 88) = 11087
[pid 11087] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11086] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11087] <... set_robust_list resumed>) = 0
[pid 11086] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11087] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11086] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11087] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11086] <... futex resumed>)        = 0
[pid 11087] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11086] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11087] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11087] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11086] <... futex resumed>)        = 0
[pid 11086] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11086] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11087] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11087] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11086] <... futex resumed>)        = 0
[pid 11086] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11086] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11087] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11087] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11086] <... futex resumed>)        = 0
[pid 11086] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11086] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11087] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11087] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11086] <... futex resumed>)        = 0
[pid 11086] exit_group(0)               = ?
[pid 11087] +++ exited with 0 +++
[pid 11086] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11086, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11088
./strace-static-x86_64: Process 11088 attached
[pid 11088] set_robust_list(0x5555874576a0, 24) = 0
[pid 11088] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11088] setpgid(0, 0)               = 0
[pid 11088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11088] write(3, "1000", 4)         = 4
[pid 11088] close(3)                    = 0
executing program
[pid 11088] write(1, "executing program\n", 18) = 18
[pid 11088] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11088] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11088] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11088] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11088] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11088] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11088] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11089]}, 88) = 11089
[pid 11088] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11088] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11088] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11089 attached
 <unfinished ...>
[pid 11089] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11089] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11089] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11089] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11088] <... futex resumed>)        = 0
[pid 11088] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11088] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11089] <... futex resumed>)        = 1
[pid 11089] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11089] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11088] <... futex resumed>)        = 0
[pid 11088] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11088] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11089] <... futex resumed>)        = 1
[pid 11089] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11089] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11088] <... futex resumed>)        = 0
[pid 11088] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11088] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11089] <... futex resumed>)        = 1
[pid 11089] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11089] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11088] <... futex resumed>)        = 0
[pid 11088] exit_group(0)               = ?
[pid 11089] <... futex resumed>)        = ?
[pid 11089] +++ exited with 0 +++
[pid 11088] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11088, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11090
./strace-static-x86_64: Process 11090 attached
[pid 11090] set_robust_list(0x5555874576a0, 24) = 0
[pid 11090] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11090] setpgid(0, 0)               = 0
[pid 11090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11090] write(3, "1000", 4)         = 4
[pid 11090] close(3)                    = 0
[pid 11090] write(1, "executing program\n", 18executing program
) = 18
[pid 11090] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11090] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11090] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11090] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11090] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11090] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11090] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11091 attached
 <unfinished ...>
[pid 11091] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11091] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11091] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11090] <... clone3 resumed> => {parent_tid=[11091]}, 88) = 11091
[pid 11090] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11090] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11090] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11091] <... futex resumed>)        = 0
[pid 11091] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11091] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11090] <... futex resumed>)        = 0
[pid 11090] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11090] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11091] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11091] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11090] <... futex resumed>)        = 0
[pid 11090] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11090] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11091] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11091] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11090] <... futex resumed>)        = 0
[pid 11090] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11090] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11091] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11091] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11091] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11090] <... futex resumed>)        = 0
[pid 11090] exit_group(0)               = ?
[pid 11091] <... futex resumed>)        = ?
[pid 11091] +++ exited with 0 +++
[pid 11090] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11090, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11092
./strace-static-x86_64: Process 11092 attached
[pid 11092] set_robust_list(0x5555874576a0, 24) = 0
[pid 11092] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11092] setpgid(0, 0)               = 0
[pid 11092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11092] write(3, "1000", 4)         = 4
executing program
[pid 11092] close(3)                    = 0
[pid 11092] write(1, "executing program\n", 18) = 18
[pid 11092] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11092] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11092] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11092] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11092] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11092] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11092] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11093]}, 88) = 11093
./strace-static-x86_64: Process 11093 attached
[pid 11093] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11093] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11093] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11092] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11092] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11093] <... futex resumed>)        = 0
[pid 11093] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11092] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11093] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11093] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11092] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11092] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11093] <... futex resumed>)        = 0
[pid 11093] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11093] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11093] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11092] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11092] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11093] <... futex resumed>)        = 0
[pid 11093] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11093] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11093] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11092] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11092] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11093] <... futex resumed>)        = 0
[pid 11093] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11092] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11093] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11093] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11093] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11092] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11092] exit_group(0)               = ?
[pid 11093] <... futex resumed>)        = ?
[pid 11093] +++ exited with 0 +++
[pid 11092] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11092, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11094
./strace-static-x86_64: Process 11094 attached
[pid 11094] set_robust_list(0x5555874576a0, 24) = 0
[pid 11094] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11094] setpgid(0, 0)               = 0
[pid 11094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11094] write(3, "1000", 4)         = 4
executing program
[pid 11094] close(3)                    = 0
[pid 11094] write(1, "executing program\n", 18) = 18
[pid 11094] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11094] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11094] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11094] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11094] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11094] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11094] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11095 attached
 => {parent_tid=[11095]}, 88) = 11095
[pid 11094] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11094] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11094] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11095] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11095] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11095] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11095] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11095] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11094] <... futex resumed>)        = 0
[pid 11094] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11095] <... futex resumed>)        = 0
[pid 11094] <... futex resumed>)        = 1
[pid 11095] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11095] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11095] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11094] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11094] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11095] <... futex resumed>)        = 0
[pid 11094] <... futex resumed>)        = 1
[pid 11095] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11095] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11095] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11094] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11094] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11095] <... futex resumed>)        = 0
[pid 11094] <... futex resumed>)        = 1
[pid 11095] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11095] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11095] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11094] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11094] exit_group(0 <unfinished ...>
[pid 11095] <... futex resumed>)        = ?
[pid 11094] <... exit_group resumed>)   = ?
[pid 11095] +++ exited with 0 +++
[pid 11094] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11094, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11096
./strace-static-x86_64: Process 11096 attached
[pid 11096] set_robust_list(0x5555874576a0, 24) = 0
[pid 11096] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11096] setpgid(0, 0)               = 0
[pid 11096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11096] write(3, "1000", 4)         = 4
executing program
[pid 11096] close(3)                    = 0
[pid 11096] write(1, "executing program\n", 18) = 18
[pid 11096] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11096] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11096] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11096] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11096] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11096] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11096] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11097]}, 88) = 11097
[pid 11096] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11096] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11096] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11097 attached
 <unfinished ...>
[pid 11097] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11097] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11097] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11097] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11096] <... futex resumed>)        = 0
[pid 11096] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11096] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11097] <... futex resumed>)        = 1
[pid 11097] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11097] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11096] <... futex resumed>)        = 0
[pid 11096] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11096] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11097] <... futex resumed>)        = 1
[pid 11097] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11097] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11096] <... futex resumed>)        = 0
[pid 11096] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11096] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11097] <... futex resumed>)        = 1
[pid 11097] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11097] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11096] <... futex resumed>)        = 0
[pid 11096] exit_group(0)               = ?
[pid 11097] <... futex resumed>)        = ?
[pid 11097] +++ exited with 0 +++
[pid 11096] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11096, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11098
./strace-static-x86_64: Process 11098 attached
[pid 11098] set_robust_list(0x5555874576a0, 24) = 0
[pid 11098] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11098] setpgid(0, 0)               = 0
[pid 11098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11098] write(3, "1000", 4)         = 4
[pid 11098] close(3)                    = 0
[pid 11098] write(1, "executing program\n", 18executing program
) = 18
[pid 11098] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11098] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11098] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11098] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11098] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11098] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11098] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11099]}, 88) = 11099
[pid 11098] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11098] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11098] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11099 attached
 <unfinished ...>
[pid 11099] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11099] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11099] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11099] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11098] <... futex resumed>)        = 0
[pid 11098] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11098] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11099] <... futex resumed>)        = 1
[pid 11099] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11099] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11098] <... futex resumed>)        = 0
[pid 11098] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11098] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11099] <... futex resumed>)        = 1
[pid 11099] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11099] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11098] <... futex resumed>)        = 0
[pid 11098] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11098] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11099] <... futex resumed>)        = 1
[pid 11099] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11099] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11098] <... futex resumed>)        = 0
[pid 11098] exit_group(0)               = ?
[pid 11099] <... futex resumed>)        = ?
[pid 11099] +++ exited with 0 +++
[pid 11098] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11098, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11100
./strace-static-x86_64: Process 11100 attached
[pid 11100] set_robust_list(0x5555874576a0, 24) = 0
[pid 11100] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11100] setpgid(0, 0)               = 0
[pid 11100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11100] write(3, "1000", 4)         = 4
executing program
[pid 11100] close(3)                    = 0
[pid 11100] write(1, "executing program\n", 18) = 18
[pid 11100] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11100] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11100] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11100] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11100] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11100] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11100] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11101]}, 88) = 11101
./strace-static-x86_64: Process 11101 attached
[pid 11100] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11100] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11100] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11101] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11101] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11101] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11101] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11101] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11100] <... futex resumed>)        = 0
[pid 11100] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11101] <... futex resumed>)        = 0
[pid 11101] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11100] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11101] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11101] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11100] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11100] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11101] <... futex resumed>)        = 0
[pid 11101] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11101] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11101] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11100] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11100] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11101] <... futex resumed>)        = 0
[pid 11101] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11101] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11101] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11100] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11100] exit_group(0)               = ?
[pid 11101] <... futex resumed>)        = ?
[pid 11101] +++ exited with 0 +++
[pid 11100] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11100, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11102 attached
, child_tidptr=0x555587457690) = 11102
[pid 11102] set_robust_list(0x5555874576a0, 24) = 0
[pid 11102] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11102] setpgid(0, 0)               = 0
[pid 11102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11102] write(3, "1000", 4)         = 4
[pid 11102] close(3)                    = 0
[pid 11102] write(1, "executing program\n", 18executing program
) = 18
[pid 11102] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11102] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11102] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11102] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11102] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11102] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11102] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11103 attached
 => {parent_tid=[11103]}, 88) = 11103
[pid 11102] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11102] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11102] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11103] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11103] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11103] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11103] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11102] <... futex resumed>)        = 0
[pid 11102] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11102] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11103] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11103] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11102] <... futex resumed>)        = 0
[pid 11102] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11102] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11103] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11103] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11102] <... futex resumed>)        = 0
[pid 11102] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11102] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11103] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11103] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11102] <... futex resumed>)        = 0
[pid 11102] exit_group(0)               = ?
[pid 11103] +++ exited with 0 +++
[pid 11102] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11102, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11104
./strace-static-x86_64: Process 11104 attached
[pid 11104] set_robust_list(0x5555874576a0, 24) = 0
[pid 11104] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11104] setpgid(0, 0)               = 0
[pid 11104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11104] write(3, "1000", 4)         = 4
[pid 11104] close(3)                    = 0
[pid 11104] write(1, "executing program\n", 18executing program
) = 18
[pid 11104] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11104] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11104] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11104] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11104] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11104] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11104] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11105 attached
 <unfinished ...>
[pid 11105] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11105] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11105] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11104] <... clone3 resumed> => {parent_tid=[11105]}, 88) = 11105
[pid 11104] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11104] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11105] <... futex resumed>)        = 0
[pid 11104] <... futex resumed>)        = 1
[pid 11105] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11104] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11105] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11105] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11105] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11104] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11104] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11105] <... futex resumed>)        = 0
[pid 11104] <... futex resumed>)        = 1
[pid 11105] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11105] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11104] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11105] <... futex resumed>)        = 0
[pid 11105] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11104] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11104] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11105] <... futex resumed>)        = 0
[pid 11104] <... futex resumed>)        = 1
[pid 11105] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11105] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11105] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11104] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11104] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11105] <... futex resumed>)        = 0
[pid 11104] <... futex resumed>)        = 1
[pid 11105] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11104] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11105] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11105] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11104] <... futex resumed>)        = 0
[pid 11105] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11104] exit_group(0 <unfinished ...>
[pid 11105] <... futex resumed>)        = ?
[pid 11104] <... exit_group resumed>)   = ?
[pid 11105] +++ exited with 0 +++
[pid 11104] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11104, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11106 attached
, child_tidptr=0x555587457690) = 11106
[pid 11106] set_robust_list(0x5555874576a0, 24) = 0
[pid 11106] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11106] setpgid(0, 0)               = 0
[pid 11106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11106] write(3, "1000", 4)         = 4
[pid 11106] close(3)                    = 0
[pid 11106] write(1, "executing program\n", 18executing program
) = 18
[pid 11106] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11106] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11106] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11106] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11106] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11106] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11106] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11107 attached
 => {parent_tid=[11107]}, 88) = 11107
[pid 11107] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11107] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11107] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11106] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11106] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11107] <... futex resumed>)        = 0
[pid 11107] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11107] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11107] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11106] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11106] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11107] <... futex resumed>)        = 0
[pid 11107] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11107] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11107] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11106] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11106] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11107] <... futex resumed>)        = 0
[pid 11107] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11106] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11107] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11107] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11107] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11106] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11106] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11107] <... futex resumed>)        = 0
[pid 11107] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11107] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11107] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11106] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11106] exit_group(0)               = ?
[pid 11107] <... futex resumed>)        = ?
[pid 11107] +++ exited with 0 +++
[pid 11106] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11106, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11108
./strace-static-x86_64: Process 11108 attached
[pid 11108] set_robust_list(0x5555874576a0, 24) = 0
[pid 11108] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11108] setpgid(0, 0)               = 0
[pid 11108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11108] write(3, "1000", 4)         = 4
[pid 11108] close(3)                    = 0
executing program
[pid 11108] write(1, "executing program\n", 18) = 18
[pid 11108] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11108] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11108] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11108] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11108] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11108] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11108] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11109]}, 88) = 11109
./strace-static-x86_64: Process 11109 attached
[pid 11108] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11108] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11108] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11109] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11109] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11109] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11109] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11108] <... futex resumed>)        = 0
[pid 11108] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11108] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11109] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11109] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11108] <... futex resumed>)        = 0
[pid 11108] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11108] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11109] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11109] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11108] <... futex resumed>)        = 0
[pid 11108] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11108] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11109] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11109] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11108] <... futex resumed>)        = 0
[pid 11108] exit_group(0)               = ?
[pid 11109] +++ exited with 0 +++
[pid 11108] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11108, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11110
./strace-static-x86_64: Process 11110 attached
[pid 11110] set_robust_list(0x5555874576a0, 24) = 0
[pid 11110] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11110] setpgid(0, 0)               = 0
[pid 11110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11110] write(3, "1000", 4)         = 4
[pid 11110] close(3)                    = 0
executing program
[pid 11110] write(1, "executing program\n", 18) = 18
[pid 11110] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11110] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11110] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11110] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11110] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11110] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11110] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11111 attached
 => {parent_tid=[11111]}, 88) = 11111
[pid 11110] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11110] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11110] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11111] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11111] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11111] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11111] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11110] <... futex resumed>)        = 0
[pid 11110] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11110] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11111] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11111] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11110] <... futex resumed>)        = 0
[pid 11110] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11110] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11111] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11111] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11110] <... futex resumed>)        = 0
[pid 11110] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11110] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11111] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11111] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11110] <... futex resumed>)        = 0
[pid 11110] exit_group(0 <unfinished ...>
[pid 11111] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11110] <... exit_group resumed>)   = ?
[pid 11111] <... futex resumed>)        = ?
[pid 11111] +++ exited with 0 +++
[pid 11110] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11110, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11112
./strace-static-x86_64: Process 11112 attached
[pid 11112] set_robust_list(0x5555874576a0, 24) = 0
[pid 11112] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11112] setpgid(0, 0)               = 0
[pid 11112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11112] write(3, "1000", 4)         = 4
executing program
[pid 11112] close(3)                    = 0
[pid 11112] write(1, "executing program\n", 18) = 18
[pid 11112] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11112] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11112] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11112] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11112] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11112] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11112] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11113]}, 88) = 11113
[pid 11112] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11112] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11112] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11113 attached
 <unfinished ...>
[pid 11113] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11113] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11113] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11113] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11112] <... futex resumed>)        = 0
[pid 11112] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11112] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11113] <... futex resumed>)        = 1
[pid 11113] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11113] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11112] <... futex resumed>)        = 0
[pid 11112] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11112] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11113] <... futex resumed>)        = 1
[pid 11113] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11113] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11112] <... futex resumed>)        = 0
[pid 11112] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11112] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11113] <... futex resumed>)        = 1
[pid 11113] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11113] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11112] <... futex resumed>)        = 0
[pid 11112] exit_group(0)               = ?
[pid 11113] <... futex resumed>)        = ?
[pid 11113] +++ exited with 0 +++
[pid 11112] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11112, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11114
./strace-static-x86_64: Process 11114 attached
[pid 11114] set_robust_list(0x5555874576a0, 24) = 0
[pid 11114] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11114] setpgid(0, 0)               = 0
[pid 11114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11114] write(3, "1000", 4)         = 4
[pid 11114] close(3)                    = 0
executing program
[pid 11114] write(1, "executing program\n", 18) = 18
[pid 11114] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11114] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11114] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11114] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11114] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11114] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11114] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11115 attached
 => {parent_tid=[11115]}, 88) = 11115
[pid 11114] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11114] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11114] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11115] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11115] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11115] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11115] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11114] <... futex resumed>)        = 0
[pid 11114] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11114] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11115] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11115] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11114] <... futex resumed>)        = 0
[pid 11114] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11114] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11115] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11115] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11114] <... futex resumed>)        = 0
[pid 11114] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11114] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11115] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11115] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11114] <... futex resumed>)        = 0
[pid 11114] exit_group(0)               = ?
[pid 11115] +++ exited with 0 +++
[pid 11114] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11114, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11116
./strace-static-x86_64: Process 11116 attached
[pid 11116] set_robust_list(0x5555874576a0, 24) = 0
[pid 11116] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11116] setpgid(0, 0)               = 0
[pid 11116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11116] write(3, "1000", 4executing program
)         = 4
[pid 11116] close(3)                    = 0
[pid 11116] write(1, "executing program\n", 18) = 18
[pid 11116] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11116] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11116] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11116] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11116] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11116] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11116] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11117]}, 88) = 11117
[pid 11116] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11116] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11116] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11117 attached
 <unfinished ...>
[pid 11117] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11117] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11117] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11117] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11116] <... futex resumed>)        = 0
[pid 11116] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11116] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11117] <... futex resumed>)        = 1
[pid 11117] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11117] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11116] <... futex resumed>)        = 0
[pid 11116] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11116] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11117] <... futex resumed>)        = 1
[pid 11117] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11117] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11116] <... futex resumed>)        = 0
[pid 11116] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11116] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11117] <... futex resumed>)        = 1
[pid 11117] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11117] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11116] <... futex resumed>)        = 0
[pid 11116] exit_group(0)               = ?
[pid 11117] <... futex resumed>)        = ?
[pid 11117] +++ exited with 0 +++
[pid 11116] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11116, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11118 attached
, child_tidptr=0x555587457690) = 11118
[pid 11118] set_robust_list(0x5555874576a0, 24) = 0
[pid 11118] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11118] setpgid(0, 0)               = 0
[pid 11118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11118] write(3, "1000", 4)         = 4
[pid 11118] close(3)                    = 0
[pid 11118] write(1, "executing program\n", 18executing program
) = 18
[pid 11118] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11118] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11118] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11118] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11118] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11118] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11118] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11119]}, 88) = 11119
[pid 11118] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11118] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11118] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11119 attached
 <unfinished ...>
[pid 11119] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11119] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11119] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11119] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11119] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11118] <... futex resumed>)        = 0
[pid 11118] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11119] <... futex resumed>)        = 0
[pid 11119] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11119] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11119] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11118] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11118] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11119] <... futex resumed>)        = 0
[pid 11119] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11119] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11119] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11118] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11118] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11119] <... futex resumed>)        = 0
[pid 11119] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11119] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11119] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11118] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11118] exit_group(0)               = ?
[pid 11119] <... futex resumed>)        = ?
[pid 11119] +++ exited with 0 +++
[pid 11118] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11118, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11120 attached
, child_tidptr=0x555587457690) = 11120
[pid 11120] set_robust_list(0x5555874576a0, 24) = 0
[pid 11120] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11120] setpgid(0, 0)               = 0
[pid 11120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11120] write(3, "1000", 4)         = 4
[pid 11120] close(3)                    = 0
[pid 11120] write(1, "executing program\n", 18executing program
) = 18
[pid 11120] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11120] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11120] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11120] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11120] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11120] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11120] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11121 attached
 => {parent_tid=[11121]}, 88) = 11121
[pid 11121] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11121] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11121] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11120] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11120] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11121] <... futex resumed>)        = 0
[pid 11121] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11120] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11121] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11121] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11120] <... futex resumed>)        = 0
[pid 11120] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11120] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11121] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11121] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11120] <... futex resumed>)        = 0
[pid 11120] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11120] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11121] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11121] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11120] <... futex resumed>)        = 0
[pid 11121] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11120] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11121] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11120] <... futex resumed>)        = 0
[pid 11120] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11121] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11121] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11120] <... futex resumed>)        = 0
[pid 11120] exit_group(0)               = ?
[pid 11121] +++ exited with 0 +++
[pid 11120] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11120, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11122
./strace-static-x86_64: Process 11122 attached
[pid 11122] set_robust_list(0x5555874576a0, 24) = 0
[pid 11122] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11122] setpgid(0, 0)               = 0
[pid 11122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11122] write(3, "1000", 4)         = 4
[pid 11122] close(3)                    = 0
executing program
[pid 11122] write(1, "executing program\n", 18) = 18
[pid 11122] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11122] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11122] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11122] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11122] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11122] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11122] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11123]}, 88) = 11123
./strace-static-x86_64: Process 11123 attached
[pid 11123] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11123] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11123] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11122] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11122] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11123] <... futex resumed>)        = 0
[pid 11123] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11123] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11123] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11122] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11122] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11123] <... futex resumed>)        = 0
[pid 11122] <... futex resumed>)        = 1
[pid 11123] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11123] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11123] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11122] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11122] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11123] <... futex resumed>)        = 0
[pid 11123] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11123] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11123] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11122] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11122] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11123] <... futex resumed>)        = 0
[pid 11123] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11123] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11123] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11122] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11122] exit_group(0)               = ?
[pid 11123] <... futex resumed>)        = ?
[pid 11123] +++ exited with 0 +++
[pid 11122] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11122, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11124
./strace-static-x86_64: Process 11124 attached
[pid 11124] set_robust_list(0x5555874576a0, 24) = 0
[pid 11124] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11124] setpgid(0, 0)               = 0
[pid 11124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11124] write(3, "1000", 4)         = 4
[pid 11124] close(3)                    = 0
[pid 11124] write(1, "executing program\n", 18executing program
) = 18
[pid 11124] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11124] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11124] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11124] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11124] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11124] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11124] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11125 attached
 => {parent_tid=[11125]}, 88) = 11125
[pid 11125] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11125] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11125] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11124] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11124] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11125] <... futex resumed>)        = 0
[pid 11125] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11124] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11125] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11125] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11125] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11124] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11124] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11125] <... futex resumed>)        = 0
[pid 11125] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11125] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11125] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11124] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11124] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11125] <... futex resumed>)        = 0
[pid 11124] <... futex resumed>)        = 1
[pid 11125] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11124] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11125] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11125] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11124] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11125] <... futex resumed>)        = 0
[pid 11124] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11125] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11124] <... futex resumed>)        = 0
[pid 11125] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11124] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11125] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11124] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11125] <... futex resumed>)        = 0
[pid 11124] exit_group(0)               = ?
[pid 11125] +++ exited with 0 +++
[pid 11124] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11124, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11126
./strace-static-x86_64: Process 11126 attached
[pid 11126] set_robust_list(0x5555874576a0, 24) = 0
[pid 11126] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11126] setpgid(0, 0)               = 0
[pid 11126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11126] write(3, "1000", 4)         = 4
[pid 11126] close(3)                    = 0
[pid 11126] write(1, "executing program\n", 18executing program
) = 18
[pid 11126] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11126] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11126] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11126] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11126] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11126] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11126] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11127]}, 88) = 11127
./strace-static-x86_64: Process 11127 attached
[pid 11126] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11127] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11126] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11126] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11127] <... set_robust_list resumed>) = 0
[pid 11127] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11126] <... futex resumed>)        = 0
[pid 11127] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11126] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11127] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11127] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11126] <... futex resumed>)        = 0
[pid 11126] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11126] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11127] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11127] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11126] <... futex resumed>)        = 0
[pid 11126] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11126] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11127] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11127] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11126] <... futex resumed>)        = 0
[pid 11126] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11126] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11127] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11127] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11126] <... futex resumed>)        = 0
[pid 11126] exit_group(0)               = ?
[pid 11127] +++ exited with 0 +++
[pid 11126] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11126, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11128 attached
, child_tidptr=0x555587457690) = 11128
[pid 11128] set_robust_list(0x5555874576a0, 24) = 0
[pid 11128] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11128] setpgid(0, 0)               = 0
[pid 11128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11128] write(3, "1000", 4)         = 4
[pid 11128] close(3)                    = 0
[pid 11128] write(1, "executing program\n", 18executing program
) = 18
[pid 11128] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11128] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11128] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11128] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11128] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11128] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11128] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11129 attached
 => {parent_tid=[11129]}, 88) = 11129
[pid 11129] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11129] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11129] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11128] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11128] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11129] <... futex resumed>)        = 0
[pid 11129] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11129] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11129] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11128] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11128] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11129] <... futex resumed>)        = 0
[pid 11129] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11129] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11129] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11128] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11128] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11129] <... futex resumed>)        = 0
[pid 11129] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11129] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11129] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11128] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11128] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11129] <... futex resumed>)        = 0
[pid 11129] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11129] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11129] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11128] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11128] exit_group(0)               = ?
[pid 11129] <... futex resumed>)        = ?
[pid 11129] +++ exited with 0 +++
[pid 11128] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11128, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11130
./strace-static-x86_64: Process 11130 attached
[pid 11130] set_robust_list(0x5555874576a0, 24) = 0
[pid 11130] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11130] setpgid(0, 0)               = 0
[pid 11130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11130] write(3, "1000", 4)         = 4
[pid 11130] close(3)                    = 0
executing program
[pid 11130] write(1, "executing program\n", 18) = 18
[pid 11130] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11130] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11130] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11130] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11130] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11130] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11130] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11131]}, 88) = 11131
[pid 11130] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11130] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11130] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11131 attached
 <unfinished ...>
[pid 11131] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11131] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11131] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11131] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11130] <... futex resumed>)        = 0
[pid 11131] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11130] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11130] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11131] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11131] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11130] <... futex resumed>)        = 0
[pid 11131] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11130] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11131] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11130] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11131] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11130] <... futex resumed>)        = 0
[pid 11130] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11130] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11131] <... futex resumed>)        = 1
[pid 11131] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11131] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11130] <... futex resumed>)        = 0
[pid 11130] exit_group(0)               = ?
[pid 11131] <... futex resumed>)        = ?
[pid 11131] +++ exited with 0 +++
[pid 11130] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11130, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11132 attached
, child_tidptr=0x555587457690) = 11132
[pid 11132] set_robust_list(0x5555874576a0, 24) = 0
[pid 11132] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11132] setpgid(0, 0)               = 0
[pid 11132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11132] write(3, "1000", 4)         = 4
[pid 11132] close(3)                    = 0
[pid 11132] write(1, "executing program\n", 18executing program
) = 18
[pid 11132] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11132] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11132] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11132] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11132] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11132] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11132] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11133]}, 88) = 11133
[pid 11132] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11132] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11132] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11133 attached
 <unfinished ...>
[pid 11133] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11133] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11133] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11133] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11132] <... futex resumed>)        = 0
[pid 11132] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11132] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11133] <... futex resumed>)        = 1
[pid 11133] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11133] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11132] <... futex resumed>)        = 0
[pid 11132] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11132] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11133] <... futex resumed>)        = 1
[pid 11133] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11133] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11132] <... futex resumed>)        = 0
[pid 11132] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11132] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11133] <... futex resumed>)        = 1
[pid 11133] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11133] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11132] <... futex resumed>)        = 0
[pid 11132] exit_group(0)               = ?
[pid 11133] <... futex resumed>)        = ?
[pid 11133] +++ exited with 0 +++
[pid 11132] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11132, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11134
./strace-static-x86_64: Process 11134 attached
[pid 11134] set_robust_list(0x5555874576a0, 24) = 0
[pid 11134] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11134] setpgid(0, 0)               = 0
[pid 11134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11134] write(3, "1000", 4)         = 4
[pid 11134] close(3)                    = 0
[pid 11134] write(1, "executing program\n", 18executing program
) = 18
[pid 11134] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11134] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11134] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11134] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11134] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11134] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11134] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11135]}, 88) = 11135
[pid 11134] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
./strace-static-x86_64: Process 11135 attached
[pid 11135] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11135] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11135] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11134] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11135] <... futex resumed>)        = 0
[pid 11135] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11134] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11135] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11135] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11135] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11134] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11134] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11135] <... futex resumed>)        = 0
[pid 11135] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11135] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11135] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11134] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11134] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11135] <... futex resumed>)        = 0
[pid 11135] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11135] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11135] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11134] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11134] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11135] <... futex resumed>)        = 0
[pid 11135] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11135] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11135] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11134] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11134] exit_group(0)               = ?
[pid 11135] <... futex resumed>)        = ?
[pid 11135] +++ exited with 0 +++
[pid 11134] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11134, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11136
./strace-static-x86_64: Process 11136 attached
[pid 11136] set_robust_list(0x5555874576a0, 24) = 0
[pid 11136] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11136] setpgid(0, 0)               = 0
[pid 11136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11136] write(3, "1000", 4)         = 4
[pid 11136] close(3)                    = 0
[pid 11136] write(1, "executing program\n", 18executing program
) = 18
[pid 11136] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11136] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11136] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11136] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11136] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11136] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11136] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11137 attached
 <unfinished ...>
[pid 11137] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11137] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11137] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11136] <... clone3 resumed> => {parent_tid=[11137]}, 88) = 11137
[pid 11136] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11136] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11137] <... futex resumed>)        = 0
[pid 11137] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11136] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11137] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11137] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11137] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11136] <... futex resumed>)        = 0
[pid 11136] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11137] <... futex resumed>)        = 0
[pid 11137] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11136] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11137] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11137] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11136] <... futex resumed>)        = 0
[pid 11136] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11136] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11137] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11137] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11136] <... futex resumed>)        = 0
[pid 11136] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11136] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11137] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11137] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11136] <... futex resumed>)        = 0
[pid 11136] exit_group(0 <unfinished ...>
[pid 11137] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11136] <... exit_group resumed>)   = ?
[pid 11137] <... futex resumed>)        = ?
[pid 11137] +++ exited with 0 +++
[pid 11136] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11136, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11138
./strace-static-x86_64: Process 11138 attached
[pid 11138] set_robust_list(0x5555874576a0, 24) = 0
[pid 11138] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11138] setpgid(0, 0)               = 0
[pid 11138] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11138] write(3, "1000", 4)         = 4
[pid 11138] close(3)                    = 0
[pid 11138] write(1, "executing program\n", 18executing program
) = 18
[pid 11138] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11138] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11138] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11138] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11138] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11138] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11138] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11139]}, 88) = 11139
[pid 11138] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11138] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11138] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11139 attached
 <unfinished ...>
[pid 11139] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11139] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11139] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11139] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11138] <... futex resumed>)        = 0
[pid 11138] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11138] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11139] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11139] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11138] <... futex resumed>)        = 0
[pid 11138] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11138] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11139] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11139] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11138] <... futex resumed>)        = 0
[pid 11138] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11138] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11139] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11139] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11139] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11138] <... futex resumed>)        = 0
[pid 11138] exit_group(0)               = ?
[pid 11139] <... futex resumed>)        = ?
[pid 11139] +++ exited with 0 +++
[pid 11138] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11138, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11140
./strace-static-x86_64: Process 11140 attached
[pid 11140] set_robust_list(0x5555874576a0, 24) = 0
[pid 11140] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11140] setpgid(0, 0)               = 0
[pid 11140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11140] write(3, "1000", 4)         = 4
executing program
[pid 11140] close(3)                    = 0
[pid 11140] write(1, "executing program\n", 18) = 18
[pid 11140] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11140] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11140] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11140] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11140] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11140] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11140] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11141]}, 88) = 11141
[pid 11140] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11140] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11140] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11141 attached
 <unfinished ...>
[pid 11141] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11141] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11141] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11141] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11140] <... futex resumed>)        = 0
[pid 11141] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11140] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11140] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11141] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11141] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11141] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11140] <... futex resumed>)        = 0
[pid 11140] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11140] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11141] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11141] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11140] <... futex resumed>)        = 0
[pid 11140] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11140] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11141] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11141] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11140] <... futex resumed>)        = 0
[pid 11140] exit_group(0)               = ?
[pid 11141] +++ exited with 0 +++
[pid 11140] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11140, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11142
./strace-static-x86_64: Process 11142 attached
[pid 11142] set_robust_list(0x5555874576a0, 24) = 0
[pid 11142] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11142] setpgid(0, 0)               = 0
[pid 11142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11142] write(3, "1000", 4)         = 4
[pid 11142] close(3executing program
)                    = 0
[pid 11142] write(1, "executing program\n", 18) = 18
[pid 11142] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11142] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11142] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11142] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11142] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11142] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11142] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11143]}, 88) = 11143
[pid 11142] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11142] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11142] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11143 attached
 <unfinished ...>
[pid 11143] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11143] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11143] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11143] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11142] <... futex resumed>)        = 0
[pid 11143] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11142] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11143] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11142] <... futex resumed>)        = 0
[pid 11142] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11143] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11142] <... futex resumed>)        = 0
[pid 11142] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11142] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11143] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11143] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11142] <... futex resumed>)        = 0
[pid 11143] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11142] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11142] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11143] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11143] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11143] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11142] <... futex resumed>)        = 0
[pid 11142] exit_group(0)               = ?
[pid 11143] +++ exited with 0 +++
[pid 11142] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11142, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11144 attached
, child_tidptr=0x555587457690) = 11144
[pid 11144] set_robust_list(0x5555874576a0, 24) = 0
[pid 11144] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11144] setpgid(0, 0)               = 0
[pid 11144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11144] write(3, "1000", 4)         = 4
[pid 11144] close(3)                    = 0
[pid 11144] write(1, "executing program\n", 18executing program
) = 18
[pid 11144] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11144] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11144] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11144] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11144] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11144] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11144] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11145 attached
 => {parent_tid=[11145]}, 88) = 11145
[pid 11145] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11145] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11145] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11144] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11144] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11145] <... futex resumed>)        = 0
[pid 11145] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11144] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11145] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11145] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11145] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11144] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11144] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11145] <... futex resumed>)        = 0
[pid 11145] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11144] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11145] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11145] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11144] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11144] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11145] <... futex resumed>)        = 0
[pid 11145] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11144] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11145] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11145] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11145] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11144] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11144] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11145] <... futex resumed>)        = 0
[pid 11145] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11144] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11145] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11145] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11145] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11144] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11144] exit_group(0)               = ?
[pid 11145] <... futex resumed>)        = ?
[pid 11145] +++ exited with 0 +++
[pid 11144] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11144, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11146
./strace-static-x86_64: Process 11146 attached
[pid 11146] set_robust_list(0x5555874576a0, 24) = 0
[pid 11146] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11146] setpgid(0, 0)               = 0
[pid 11146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11146] write(3, "1000", 4)         = 4
[pid 11146] close(3)                    = 0
[pid 11146] write(1, "executing program\n", 18executing program
) = 18
[pid 11146] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11146] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11146] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11146] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11146] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11146] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11146] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11147 attached
 => {parent_tid=[11147]}, 88) = 11147
[pid 11146] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11147] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11146] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11146] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11147] <... set_robust_list resumed>) = 0
[pid 11147] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11147] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11147] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11146] <... futex resumed>)        = 0
[pid 11146] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11146] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11147] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11147] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11146] <... futex resumed>)        = 0
[pid 11146] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11146] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11147] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11147] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11146] <... futex resumed>)        = 0
[pid 11146] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11146] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11147] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11147] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11146] <... futex resumed>)        = 0
[pid 11147] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11146] exit_group(0 <unfinished ...>
[pid 11147] <... futex resumed>)        = ?
[pid 11146] <... exit_group resumed>)   = ?
[pid 11147] +++ exited with 0 +++
[pid 11146] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11146, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11148
./strace-static-x86_64: Process 11148 attached
[pid 11148] set_robust_list(0x5555874576a0, 24) = 0
[pid 11148] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11148] setpgid(0, 0)               = 0
[pid 11148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11148] write(3, "1000", 4)         = 4
[pid 11148] close(3)                    = 0
[pid 11148] write(1, "executing program\n", 18executing program
) = 18
[pid 11148] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11148] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11148] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11148] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11148] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11148] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11148] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11149 attached
 => {parent_tid=[11149]}, 88) = 11149
[pid 11149] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11149] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11149] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11148] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11148] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11149] <... futex resumed>)        = 0
[pid 11149] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11149] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11149] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11148] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11148] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11149] <... futex resumed>)        = 0
[pid 11149] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11149] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11149] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11148] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11148] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11149] <... futex resumed>)        = 0
[pid 11149] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11149] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11149] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11148] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11148] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11149] <... futex resumed>)        = 0
[pid 11148] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11149] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11149] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11148] <... futex resumed>)        = 0
[pid 11148] exit_group(0)               = ?
[pid 11149] +++ exited with 0 +++
[pid 11148] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11148, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11150 attached
, child_tidptr=0x555587457690) = 11150
[pid 11150] set_robust_list(0x5555874576a0, 24) = 0
[pid 11150] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11150] setpgid(0, 0)               = 0
[pid 11150] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11150] write(3, "1000", 4)         = 4
[pid 11150] close(3)                    = 0
[pid 11150] write(1, "executing program\n", 18executing program
) = 18
[pid 11150] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11150] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11150] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11150] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11150] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11150] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11150] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11151 attached
 => {parent_tid=[11151]}, 88) = 11151
[pid 11151] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11151] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11151] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11150] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11150] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11151] <... futex resumed>)        = 0
[pid 11151] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11150] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11151] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11151] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11151] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11150] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11150] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11151] <... futex resumed>)        = 0
[pid 11151] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11151] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11151] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11150] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11150] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11151] <... futex resumed>)        = 0
[pid 11151] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11151] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11151] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11150] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11150] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11151] <... futex resumed>)        = 0
[pid 11151] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11151] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11151] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11150] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11150] exit_group(0)               = ?
[pid 11151] <... futex resumed>)        = ?
[pid 11151] +++ exited with 0 +++
[pid 11150] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11150, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11152
./strace-static-x86_64: Process 11152 attached
[pid 11152] set_robust_list(0x5555874576a0, 24) = 0
[pid 11152] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11152] setpgid(0, 0)               = 0
[pid 11152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11152] write(3, "1000", 4)         = 4
[pid 11152] close(3executing program
)                    = 0
[pid 11152] write(1, "executing program\n", 18) = 18
[pid 11152] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11152] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11152] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11152] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11152] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11152] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11152] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11153]}, 88) = 11153
[pid 11152] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11152] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11152] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11153 attached
 <unfinished ...>
[pid 11153] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11153] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11153] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11153] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11152] <... futex resumed>)        = 0
[pid 11152] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11152] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11153] <... futex resumed>)        = 1
[pid 11153] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11153] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11152] <... futex resumed>)        = 0
[pid 11152] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11152] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11153] <... futex resumed>)        = 1
[pid 11153] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11153] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11152] <... futex resumed>)        = 0
[pid 11152] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11152] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11153] <... futex resumed>)        = 1
[pid 11153] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11153] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11152] <... futex resumed>)        = 0
[pid 11152] exit_group(0)               = ?
[pid 11153] <... futex resumed>)        = ?
[pid 11153] +++ exited with 0 +++
[pid 11152] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11152, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11154
./strace-static-x86_64: Process 11154 attached
[pid 11154] set_robust_list(0x5555874576a0, 24) = 0
[pid 11154] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11154] setpgid(0, 0)               = 0
[pid 11154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11154] write(3, "1000", 4)         = 4
[pid 11154] close(3executing program
)                    = 0
[pid 11154] write(1, "executing program\n", 18) = 18
[pid 11154] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11154] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11154] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11154] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11154] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11154] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11154] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11155 attached
 => {parent_tid=[11155]}, 88) = 11155
[pid 11155] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11154] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11155] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11154] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11155] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11154] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11155] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11154] <... futex resumed>)        = 0
[pid 11154] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11155] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11155] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11154] <... futex resumed>)        = 0
[pid 11154] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11154] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11155] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11155] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11154] <... futex resumed>)        = 0
[pid 11154] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11154] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11155] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11155] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11154] <... futex resumed>)        = 0
[pid 11154] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11154] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11155] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11155] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11154] <... futex resumed>)        = 0
[pid 11154] exit_group(0)               = ?
[pid 11155] +++ exited with 0 +++
[pid 11154] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11154, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11156
./strace-static-x86_64: Process 11156 attached
[pid 11156] set_robust_list(0x5555874576a0, 24) = 0
[pid 11156] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11156] setpgid(0, 0)               = 0
[pid 11156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11156] write(3, "1000", 4)         = 4
[pid 11156] close(3)                    = 0
[pid 11156] write(1, "executing program\n", 18executing program
) = 18
[pid 11156] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11156] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11156] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11156] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11156] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11156] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11156] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11157]}, 88) = 11157
./strace-static-x86_64: Process 11157 attached
[pid 11157] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11157] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11157] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11156] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11156] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11157] <... futex resumed>)        = 0
[pid 11157] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11156] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11157] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11157] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11156] <... futex resumed>)        = 0
[pid 11156] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11156] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11157] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11157] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11156] <... futex resumed>)        = 0
[pid 11156] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11156] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11157] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11157] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11156] <... futex resumed>)        = 0
[pid 11156] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11156] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11157] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11157] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11156] <... futex resumed>)        = 0
[pid 11156] exit_group(0)               = ?
[pid 11157] +++ exited with 0 +++
[pid 11156] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11156, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11158
./strace-static-x86_64: Process 11158 attached
[pid 11158] set_robust_list(0x5555874576a0, 24) = 0
[pid 11158] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11158] setpgid(0, 0)               = 0
[pid 11158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11158] write(3, "1000", 4)         = 4
[pid 11158] close(3)                    = 0
[pid 11158] write(1, "executing program\n", 18executing program
) = 18
[pid 11158] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11158] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11158] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11158] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11158] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11158] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11158] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11159 attached
 => {parent_tid=[11159]}, 88) = 11159
[pid 11159] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11158] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11159] <... set_robust_list resumed>) = 0
[pid 11158] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11159] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11158] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11159] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11159] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11158] <... futex resumed>)        = 0
[pid 11159] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11158] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11159] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11158] <... futex resumed>)        = 0
[pid 11159] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11158] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11159] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11158] <... futex resumed>)        = 0
[pid 11159] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11158] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11159] <... futex resumed>)        = 0
[pid 11158] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11159] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11158] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11159] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11158] <... futex resumed>)        = 0
[pid 11159] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11158] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11159] <... futex resumed>)        = 0
[pid 11158] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11159] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11158] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11158] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11159] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11159] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11158] <... futex resumed>)        = 0
[pid 11159] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11158] exit_group(0 <unfinished ...>
[pid 11159] <... futex resumed>)        = ?
[pid 11158] <... exit_group resumed>)   = ?
[pid 11159] +++ exited with 0 +++
[pid 11158] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11158, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11160
./strace-static-x86_64: Process 11160 attached
[pid 11160] set_robust_list(0x5555874576a0, 24) = 0
[pid 11160] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11160] setpgid(0, 0)               = 0
[pid 11160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11160] write(3, "1000", 4)         = 4
[pid 11160] close(3)                    = 0
[pid 11160] write(1, "executing program\n", 18executing program
) = 18
[pid 11160] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11160] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11160] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11160] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11160] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11160] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11160] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11161]}, 88) = 11161
[pid 11160] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11160] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11160] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11161 attached
 <unfinished ...>
[pid 11161] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11161] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11161] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11161] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11160] <... futex resumed>)        = 0
[pid 11160] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11160] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11161] <... futex resumed>)        = 1
[pid 11161] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11161] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11160] <... futex resumed>)        = 0
[pid 11160] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11160] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11161] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11161] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11160] <... futex resumed>)        = 0
[pid 11160] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11160] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11161] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11161] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11160] <... futex resumed>)        = 0
[pid 11160] exit_group(0)               = ?
[pid 11161] +++ exited with 0 +++
[pid 11160] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11160, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11162
./strace-static-x86_64: Process 11162 attached
[pid 11162] set_robust_list(0x5555874576a0, 24) = 0
[pid 11162] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11162] setpgid(0, 0)               = 0
[pid 11162] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11162] write(3, "1000", 4)         = 4
[pid 11162] close(3)                    = 0
executing program
[pid 11162] write(1, "executing program\n", 18) = 18
[pid 11162] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11162] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11162] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11162] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11162] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11162] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11162] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11163 attached
 => {parent_tid=[11163]}, 88) = 11163
[pid 11162] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11162] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11162] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11163] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11163] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11163] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11163] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11162] <... futex resumed>)        = 0
[pid 11162] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11162] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11163] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11163] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11162] <... futex resumed>)        = 0
[pid 11162] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11162] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11163] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11163] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11162] <... futex resumed>)        = 0
[pid 11162] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11162] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11163] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11163] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11162] <... futex resumed>)        = 0
[pid 11162] exit_group(0 <unfinished ...>
[pid 11163] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11162] <... exit_group resumed>)   = ?
[pid 11163] <... futex resumed>)        = ?
[pid 11163] +++ exited with 0 +++
[pid 11162] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11162, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11164
./strace-static-x86_64: Process 11164 attached
[pid 11164] set_robust_list(0x5555874576a0, 24) = 0
[pid 11164] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11164] setpgid(0, 0)               = 0
[pid 11164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11164] write(3, "1000", 4)         = 4
[pid 11164] close(3)                    = 0
[pid 11164] write(1, "executing program\n", 18executing program
) = 18
[pid 11164] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11164] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11164] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11164] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11164] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11164] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11164] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11165 attached
 => {parent_tid=[11165]}, 88) = 11165
[pid 11165] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11165] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11165] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11164] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11164] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11165] <... futex resumed>)        = 0
[pid 11165] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11165] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11165] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11164] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11164] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11165] <... futex resumed>)        = 0
[pid 11165] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11165] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11165] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11164] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11164] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11165] <... futex resumed>)        = 0
[pid 11165] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11165] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11164] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11165] <... futex resumed>)        = 0
[pid 11165] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11164] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11164] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11165] <... futex resumed>)        = 0
[pid 11165] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11165] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11165] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11164] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11164] exit_group(0)               = ?
[pid 11165] <... futex resumed>)        = ?
[pid 11165] +++ exited with 0 +++
[pid 11164] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11164, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11166
./strace-static-x86_64: Process 11166 attached
[pid 11166] set_robust_list(0x5555874576a0, 24) = 0
[pid 11166] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11166] setpgid(0, 0)               = 0
[pid 11166] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11166] write(3, "1000", 4)         = 4
[pid 11166] close(3)                    = 0
[pid 11166] write(1, "executing program\n", 18executing program
) = 18
[pid 11166] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11166] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11166] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11166] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11166] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11166] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11166] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11167]}, 88) = 11167
[pid 11166] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11166] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11166] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11167 attached
 <unfinished ...>
[pid 11167] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11167] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11167] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11167] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11166] <... futex resumed>)        = 0
[pid 11166] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11166] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11167] <... futex resumed>)        = 1
[pid 11167] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11167] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11166] <... futex resumed>)        = 0
[pid 11166] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11166] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11167] <... futex resumed>)        = 1
[pid 11167] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11167] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11166] <... futex resumed>)        = 0
[pid 11166] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11166] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11167] <... futex resumed>)        = 1
[pid 11167] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11167] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11166] <... futex resumed>)        = 0
[pid 11166] exit_group(0)               = ?
[pid 11167] <... futex resumed>)        = ?
[pid 11167] +++ exited with 0 +++
[pid 11166] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11166, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11168
./strace-static-x86_64: Process 11168 attached
[pid 11168] set_robust_list(0x5555874576a0, 24) = 0
[pid 11168] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11168] setpgid(0, 0)               = 0
[pid 11168] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11168] write(3, "1000", 4)         = 4
[pid 11168] close(3executing program
)                    = 0
[pid 11168] write(1, "executing program\n", 18) = 18
[pid 11168] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11168] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11168] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11168] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11168] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11168] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11168] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11169 attached
 => {parent_tid=[11169]}, 88) = 11169
[pid 11168] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11168] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11168] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11169] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11169] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11169] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11169] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11168] <... futex resumed>)        = 0
[pid 11168] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11168] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11169] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11169] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11168] <... futex resumed>)        = 0
[pid 11168] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11168] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11169] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11169] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11168] <... futex resumed>)        = 0
[pid 11168] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11168] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11169] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11169] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11168] <... futex resumed>)        = 0
[pid 11168] exit_group(0)               = ?
[pid 11169] +++ exited with 0 +++
[pid 11168] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11168, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11170
./strace-static-x86_64: Process 11170 attached
[pid 11170] set_robust_list(0x5555874576a0, 24) = 0
[pid 11170] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11170] setpgid(0, 0)               = 0
[pid 11170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11170] write(3, "1000", 4)         = 4
[pid 11170] close(3executing program
)                    = 0
[pid 11170] write(1, "executing program\n", 18) = 18
[pid 11170] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11170] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11170] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11170] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11170] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11170] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11170] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11171]}, 88) = 11171
[pid 11170] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11170] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11170] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11171 attached
 <unfinished ...>
[pid 11171] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11171] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11171] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11171] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11170] <... futex resumed>)        = 0
[pid 11170] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11170] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11171] <... futex resumed>)        = 1
[pid 11171] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11171] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11170] <... futex resumed>)        = 0
[pid 11170] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11170] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11171] <... futex resumed>)        = 1
[pid 11171] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11171] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11170] <... futex resumed>)        = 0
[pid 11170] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11170] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11171] <... futex resumed>)        = 1
[pid 11171] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11171] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11170] <... futex resumed>)        = 0
[pid 11170] exit_group(0)               = ?
[pid 11171] <... futex resumed>)        = ?
[pid 11171] +++ exited with 0 +++
[pid 11170] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11170, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11172
./strace-static-x86_64: Process 11172 attached
[pid 11172] set_robust_list(0x5555874576a0, 24) = 0
[pid 11172] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11172] setpgid(0, 0)               = 0
[pid 11172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11172] write(3, "1000", 4)         = 4
[pid 11172] close(3)                    = 0
executing program
[pid 11172] write(1, "executing program\n", 18) = 18
[pid 11172] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11172] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11172] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11172] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11172] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11172] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11172] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11173]}, 88) = 11173
[pid 11172] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11172] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11172] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11173 attached
 <unfinished ...>
[pid 11173] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11173] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11173] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11173] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11172] <... futex resumed>)        = 0
[pid 11172] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11172] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11173] <... futex resumed>)        = 1
[pid 11173] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11173] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11172] <... futex resumed>)        = 0
[pid 11172] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11172] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11173] <... futex resumed>)        = 1
[pid 11173] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11173] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11172] <... futex resumed>)        = 0
[pid 11172] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11172] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11173] <... futex resumed>)        = 1
[pid 11173] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11173] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11172] <... futex resumed>)        = 0
[pid 11172] exit_group(0)               = ?
[pid 11173] <... futex resumed>)        = ?
[pid 11173] +++ exited with 0 +++
[pid 11172] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11172, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11174
./strace-static-x86_64: Process 11174 attached
[pid 11174] set_robust_list(0x5555874576a0, 24) = 0
[pid 11174] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11174] setpgid(0, 0)               = 0
[pid 11174] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11174] write(3, "1000", 4)         = 4
[pid 11174] close(3)                    = 0
[pid 11174] write(1, "executing program\n", 18executing program
) = 18
[pid 11174] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11174] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11174] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11174] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11174] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11174] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11174] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11175 attached
 => {parent_tid=[11175]}, 88) = 11175
[pid 11174] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11174] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11174] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11175] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11175] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11175] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11175] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11174] <... futex resumed>)        = 0
[pid 11174] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11174] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11175] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11175] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11174] <... futex resumed>)        = 0
[pid 11174] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11174] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11175] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11175] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11174] <... futex resumed>)        = 0
[pid 11174] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11174] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11175] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11175] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11174] <... futex resumed>)        = 0
[pid 11174] exit_group(0)               = ?
[pid 11175] +++ exited with 0 +++
[pid 11174] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11174, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11176 attached
, child_tidptr=0x555587457690) = 11176
[pid 11176] set_robust_list(0x5555874576a0, 24) = 0
[pid 11176] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11176] setpgid(0, 0)               = 0
[pid 11176] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11176] write(3, "1000", 4)         = 4
[pid 11176] close(3)                    = 0
[pid 11176] write(1, "executing program\n", 18executing program
) = 18
[pid 11176] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11176] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11176] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11176] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11176] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11176] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11176] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11177]}, 88) = 11177
[pid 11176] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 11177 attached
 <unfinished ...>
[pid 11177] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11177] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11177] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11176] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11176] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11177] <... futex resumed>)        = 0
[pid 11177] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11177] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11177] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11176] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11176] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11177] <... futex resumed>)        = 0
[pid 11177] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11177] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11177] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11176] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11176] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11177] <... futex resumed>)        = 0
[pid 11177] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11177] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11177] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11176] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11176] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11177] <... futex resumed>)        = 0
[pid 11177] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11177] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11177] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11176] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11176] exit_group(0)               = ?
[pid 11177] <... futex resumed>)        = ?
[pid 11177] +++ exited with 0 +++
[pid 11176] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11176, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11178 attached
, child_tidptr=0x555587457690) = 11178
[pid 11178] set_robust_list(0x5555874576a0, 24) = 0
[pid 11178] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11178] setpgid(0, 0)               = 0
[pid 11178] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11178] write(3, "1000", 4)         = 4
[pid 11178] close(3)                    = 0
[pid 11178] write(1, "executing program\n", 18executing program
) = 18
[pid 11178] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11178] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11178] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11178] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11178] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11178] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11178] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11179 attached
 => {parent_tid=[11179]}, 88) = 11179
[pid 11179] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11179] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11179] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11178] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11178] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11179] <... futex resumed>)        = 0
[pid 11179] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11179] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11179] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11178] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11178] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11179] <... futex resumed>)        = 0
[pid 11179] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11179] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11179] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11178] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11178] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11179] <... futex resumed>)        = 0
[pid 11179] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11179] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11179] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11178] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11178] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11179] <... futex resumed>)        = 0
[pid 11179] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11178] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11179] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11179] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11179] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11178] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11178] exit_group(0)               = ?
[pid 11179] <... futex resumed>)        = ?
[pid 11179] +++ exited with 0 +++
[pid 11178] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11178, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11180
./strace-static-x86_64: Process 11180 attached
[pid 11180] set_robust_list(0x5555874576a0, 24) = 0
[pid 11180] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11180] setpgid(0, 0)               = 0
[pid 11180] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11180] write(3, "1000", 4)         = 4
[pid 11180] close(3)                    = 0
[pid 11180] write(1, "executing program\n", 18executing program
) = 18
[pid 11180] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11180] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11180] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11180] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11180] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11180] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11180] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11181 attached
 => {parent_tid=[11181]}, 88) = 11181
[pid 11181] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11181] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11181] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11180] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11180] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11181] <... futex resumed>)        = 0
[pid 11181] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11180] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11181] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11181] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11181] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11180] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11180] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11181] <... futex resumed>)        = 0
[pid 11181] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11181] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11181] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11180] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11180] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11181] <... futex resumed>)        = 0
[pid 11181] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11181] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11181] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11180] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11180] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11181] <... futex resumed>)        = 0
[pid 11181] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11181] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11181] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11180] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11180] exit_group(0)               = ?
[pid 11181] <... futex resumed>)        = ?
[pid 11181] +++ exited with 0 +++
[pid 11180] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11180, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11182
./strace-static-x86_64: Process 11182 attached
[pid 11182] set_robust_list(0x5555874576a0, 24) = 0
[pid 11182] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11182] setpgid(0, 0)               = 0
[pid 11182] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11182] write(3, "1000", 4)         = 4
[pid 11182] close(3executing program
)                    = 0
[pid 11182] write(1, "executing program\n", 18) = 18
[pid 11182] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11182] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11182] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11182] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11182] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11182] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11182] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11183]}, 88) = 11183
./strace-static-x86_64: Process 11183 attached
[pid 11183] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11183] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11183] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11182] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11182] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11183] <... futex resumed>)        = 0
[pid 11183] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11182] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11183] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11183] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11182] <... futex resumed>)        = 0
[pid 11182] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11182] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11183] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11183] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11182] <... futex resumed>)        = 0
[pid 11182] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11182] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11183] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11183] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11182] <... futex resumed>)        = 0
[pid 11182] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11182] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11183] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11183] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11182] <... futex resumed>)        = 0
[pid 11182] exit_group(0)               = ?
[pid 11183] +++ exited with 0 +++
[pid 11182] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11182, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11184
./strace-static-x86_64: Process 11184 attached
[pid 11184] set_robust_list(0x5555874576a0, 24) = 0
[pid 11184] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11184] setpgid(0, 0)               = 0
[pid 11184] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11184] write(3, "1000", 4)         = 4
[pid 11184] close(3executing program
)                    = 0
[pid 11184] write(1, "executing program\n", 18) = 18
[pid 11184] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11184] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11184] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11184] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11184] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11184] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11184] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11185 attached
 => {parent_tid=[11185]}, 88) = 11185
[pid 11185] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11184] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11185] <... set_robust_list resumed>) = 0
[pid 11184] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11185] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11184] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11185] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11184] <... futex resumed>)        = 0
[pid 11185] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11184] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11185] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11185] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11184] <... futex resumed>)        = 0
[pid 11185] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11184] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11185] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11184] <... futex resumed>)        = 0
[pid 11185] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11184] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11185] <... futex resumed>)        = 0
[pid 11184] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11185] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11184] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11185] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11184] <... futex resumed>)        = 0
[pid 11185] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11184] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11185] <... futex resumed>)        = 0
[pid 11184] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11185] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11184] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11185] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11184] <... futex resumed>)        = 0
[pid 11185] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11184] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11185] <... futex resumed>)        = 0
[pid 11184] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11185] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11184] exit_group(0 <unfinished ...>
[pid 11185] <... futex resumed>)        = ?
[pid 11184] <... exit_group resumed>)   = ?
[pid 11185] +++ exited with 0 +++
[pid 11184] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11184, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11186
./strace-static-x86_64: Process 11186 attached
[pid 11186] set_robust_list(0x5555874576a0, 24) = 0
[pid 11186] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11186] setpgid(0, 0)               = 0
[pid 11186] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11186] write(3, "1000", 4)         = 4
[pid 11186] close(3executing program
)                    = 0
[pid 11186] write(1, "executing program\n", 18) = 18
[pid 11186] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11186] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11186] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11186] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11186] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11186] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11186] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11187]}, 88) = 11187
[pid 11186] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11186] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11186] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11187 attached
 <unfinished ...>
[pid 11187] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11187] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11187] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11187] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11186] <... futex resumed>)        = 0
[pid 11186] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11186] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11187] <... futex resumed>)        = 1
[pid 11187] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11187] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11186] <... futex resumed>)        = 0
[pid 11186] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11186] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11187] <... futex resumed>)        = 1
[pid 11187] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11187] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11186] <... futex resumed>)        = 0
[pid 11186] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11186] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11187] <... futex resumed>)        = 1
[pid 11187] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11187] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11186] <... futex resumed>)        = 0
[pid 11186] exit_group(0)               = ?
[pid 11187] <... futex resumed>)        = ?
[pid 11187] +++ exited with 0 +++
[pid 11186] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11186, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11188
./strace-static-x86_64: Process 11188 attached
[pid 11188] set_robust_list(0x5555874576a0, 24) = 0
[pid 11188] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11188] setpgid(0, 0)               = 0
[pid 11188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11188] write(3, "1000", 4)         = 4
[pid 11188] close(3)                    = 0
[pid 11188] write(1, "executing program\n", 18executing program
) = 18
[pid 11188] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11188] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11188] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11188] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11188] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11188] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11188] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11189 attached
 <unfinished ...>
[pid 11189] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11188] <... clone3 resumed> => {parent_tid=[11189]}, 88) = 11189
[pid 11189] <... set_robust_list resumed>) = 0
[pid 11189] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11189] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11188] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11188] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11189] <... futex resumed>)        = 0
[pid 11189] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11188] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11189] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11189] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11188] <... futex resumed>)        = 0
[pid 11188] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11188] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11189] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11189] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11188] <... futex resumed>)        = 0
[pid 11188] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11188] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11189] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11189] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11188] <... futex resumed>)        = 0
[pid 11188] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11188] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11189] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11189] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11188] <... futex resumed>)        = 0
[pid 11188] exit_group(0)               = ?
[pid 11189] +++ exited with 0 +++
[pid 11188] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11188, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11190
./strace-static-x86_64: Process 11190 attached
[pid 11190] set_robust_list(0x5555874576a0, 24) = 0
[pid 11190] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11190] setpgid(0, 0)               = 0
[pid 11190] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11190] write(3, "1000", 4)         = 4
[pid 11190] close(3)                    = 0
[pid 11190] write(1, "executing program\n", 18executing program
) = 18
[pid 11190] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11190] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11190] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11190] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11190] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11190] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11190] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11191 attached
 => {parent_tid=[11191]}, 88) = 11191
[pid 11190] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11190] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11190] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11191] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11191] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11191] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11191] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11190] <... futex resumed>)        = 0
[pid 11190] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11190] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11191] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11191] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11190] <... futex resumed>)        = 0
[pid 11190] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11190] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11191] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11191] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11190] <... futex resumed>)        = 0
[pid 11190] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11190] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11191] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11191] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11190] <... futex resumed>)        = 0
[pid 11190] exit_group(0)               = ?
[pid 11191] +++ exited with 0 +++
[pid 11190] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11190, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11192
./strace-static-x86_64: Process 11192 attached
[pid 11192] set_robust_list(0x5555874576a0, 24) = 0
[pid 11192] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11192] setpgid(0, 0)               = 0
[pid 11192] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11192] write(3, "1000", 4)         = 4
[pid 11192] close(3)                    = 0
[pid 11192] write(1, "executing program\n", 18executing program
) = 18
[pid 11192] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11192] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11192] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11192] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11192] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11192] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11192] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11193 attached
 <unfinished ...>
[pid 11193] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11193] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11193] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11192] <... clone3 resumed> => {parent_tid=[11193]}, 88) = 11193
[pid 11192] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11192] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11193] <... futex resumed>)        = 0
[pid 11193] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11193] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11193] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11192] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11192] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11193] <... futex resumed>)        = 0
[pid 11193] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11193] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11193] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11192] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11192] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11193] <... futex resumed>)        = 0
[pid 11193] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11193] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11193] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11192] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11192] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11193] <... futex resumed>)        = 0
[pid 11192] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11193] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11193] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11192] <... futex resumed>)        = 0
[pid 11192] exit_group(0)               = ?
[pid 11193] +++ exited with 0 +++
[pid 11192] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11192, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11194
./strace-static-x86_64: Process 11194 attached
[pid 11194] set_robust_list(0x5555874576a0, 24) = 0
[pid 11194] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11194] setpgid(0, 0)               = 0
[pid 11194] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11194] write(3, "1000", 4)         = 4
[pid 11194] close(3)                    = 0
executing program
[pid 11194] write(1, "executing program\n", 18) = 18
[pid 11194] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11194] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11194] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11194] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11194] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11194] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11194] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11195 attached
 => {parent_tid=[11195]}, 88) = 11195
[pid 11194] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11194] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11194] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11195] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11195] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11195] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11195] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11194] <... futex resumed>)        = 0
[pid 11194] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11194] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11195] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11195] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11194] <... futex resumed>)        = 0
[pid 11194] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11194] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11195] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11195] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11194] <... futex resumed>)        = 0
[pid 11194] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11194] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11195] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11195] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11194] <... futex resumed>)        = 0
[pid 11194] exit_group(0)               = ?
[pid 11195] +++ exited with 0 +++
[pid 11194] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11194, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11196
./strace-static-x86_64: Process 11196 attached
[pid 11196] set_robust_list(0x5555874576a0, 24) = 0
[pid 11196] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11196] setpgid(0, 0)               = 0
[pid 11196] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11196] write(3, "1000", 4)         = 4
[pid 11196] close(3)                    = 0
[pid 11196] write(1, "executing program\n", 18executing program
) = 18
[pid 11196] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11196] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11196] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11196] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11196] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11196] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11196] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11197 attached
 => {parent_tid=[11197]}, 88) = 11197
[pid 11196] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11196] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11196] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11197] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11197] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11197] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11197] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11196] <... futex resumed>)        = 0
[pid 11196] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11196] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11197] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11197] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11196] <... futex resumed>)        = 0
[pid 11196] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11196] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11197] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11197] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11196] <... futex resumed>)        = 0
[pid 11196] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11196] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11197] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11197] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11196] <... futex resumed>)        = 0
[pid 11196] exit_group(0)               = ?
[pid 11197] +++ exited with 0 +++
[pid 11196] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11196, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11198 attached
, child_tidptr=0x555587457690) = 11198
[pid 11198] set_robust_list(0x5555874576a0, 24) = 0
[pid 11198] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11198] setpgid(0, 0)               = 0
[pid 11198] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11198] write(3, "1000", 4)         = 4
[pid 11198] close(3executing program
)                    = 0
[pid 11198] write(1, "executing program\n", 18) = 18
[pid 11198] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11198] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11198] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11198] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11198] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11198] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11198] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11199]}, 88) = 11199
[pid 11198] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11198] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11198] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11199 attached
 <unfinished ...>
[pid 11199] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11199] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11199] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11199] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11198] <... futex resumed>)        = 0
[pid 11198] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11198] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11199] <... futex resumed>)        = 1
[pid 11199] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11199] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11198] <... futex resumed>)        = 0
[pid 11199] <... futex resumed>)        = 1
[pid 11198] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11198] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11199] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11199] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11198] <... futex resumed>)        = 0
[pid 11199] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11198] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11198] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11199] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11199] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11199] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11198] <... futex resumed>)        = 0
[pid 11198] exit_group(0 <unfinished ...>
[pid 11199] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11198] <... exit_group resumed>)   = ?
[pid 11199] <... futex resumed>)        = ?
[pid 11199] +++ exited with 0 +++
[pid 11198] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11198, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11200
./strace-static-x86_64: Process 11200 attached
[pid 11200] set_robust_list(0x5555874576a0, 24) = 0
[pid 11200] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11200] setpgid(0, 0)               = 0
[pid 11200] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11200] write(3, "1000", 4)         = 4
[pid 11200] close(3executing program
)                    = 0
[pid 11200] write(1, "executing program\n", 18) = 18
[pid 11200] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11200] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11200] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11200] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11200] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11200] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11200] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11201 attached
 <unfinished ...>
[pid 11201] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11200] <... clone3 resumed> => {parent_tid=[11201]}, 88) = 11201
[pid 11201] <... set_robust_list resumed>) = 0
[pid 11200] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11201] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11200] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11201] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11200] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11201] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11200] <... futex resumed>)        = 0
[pid 11200] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11201] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11201] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11200] <... futex resumed>)        = 0
[pid 11200] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11200] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11201] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11201] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11200] <... futex resumed>)        = 0
[pid 11200] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11200] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11201] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11201] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11200] <... futex resumed>)        = 0
[pid 11200] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11200] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11201] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11201] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11200] <... futex resumed>)        = 0
[pid 11200] exit_group(0)               = ?
[pid 11201] +++ exited with 0 +++
[pid 11200] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11200, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11202
./strace-static-x86_64: Process 11202 attached
[pid 11202] set_robust_list(0x5555874576a0, 24) = 0
[pid 11202] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11202] setpgid(0, 0)               = 0
[pid 11202] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11202] write(3, "1000", 4)         = 4
[pid 11202] close(3)                    = 0
executing program
[pid 11202] write(1, "executing program\n", 18) = 18
[pid 11202] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11202] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11202] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11202] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11202] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11202] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11202] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11203 attached
 => {parent_tid=[11203]}, 88) = 11203
[pid 11202] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11202] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11202] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11203] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11203] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11203] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11203] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11202] <... futex resumed>)        = 0
[pid 11202] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11203] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11202] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11203] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11203] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11203] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11202] <... futex resumed>)        = 0
[pid 11203] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11202] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11202] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11203] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11203] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11202] <... futex resumed>)        = 0
[pid 11202] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11202] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11203] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11203] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11202] <... futex resumed>)        = 0
[pid 11202] exit_group(0)               = ?
[pid 11203] +++ exited with 0 +++
[pid 11202] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11202, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11204 attached
, child_tidptr=0x555587457690) = 11204
[pid 11204] set_robust_list(0x5555874576a0, 24) = 0
[pid 11204] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11204] setpgid(0, 0)               = 0
[pid 11204] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11204] write(3, "1000", 4)         = 4
[pid 11204] close(3)                    = 0
[pid 11204] write(1, "executing program\n", 18executing program
) = 18
[pid 11204] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11204] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11204] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11204] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11204] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11204] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11204] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11205]}, 88) = 11205
./strace-static-x86_64: Process 11205 attached
[pid 11205] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11205] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11205] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11204] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11204] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11205] <... futex resumed>)        = 0
[pid 11205] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11204] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11205] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11205] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11204] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11204] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11205] <... futex resumed>)        = 0
[pid 11204] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11205] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11205] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11205] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11204] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11204] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11205] <... futex resumed>)        = 0
[pid 11205] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11205] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11204] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11205] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11204] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11204] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11205] <... futex resumed>)        = 0
[pid 11204] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11205] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11205] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11205] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11204] <... futex resumed>)        = 0
[pid 11204] exit_group(0 <unfinished ...>
[pid 11205] <... futex resumed>)        = ?
[pid 11204] <... exit_group resumed>)   = ?
[pid 11205] +++ exited with 0 +++
[pid 11204] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11204, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11206 attached
, child_tidptr=0x555587457690) = 11206
[pid 11206] set_robust_list(0x5555874576a0, 24) = 0
[pid 11206] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11206] setpgid(0, 0)               = 0
[pid 11206] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11206] write(3, "1000", 4)         = 4
[pid 11206] close(3)                    = 0
executing program
[pid 11206] write(1, "executing program\n", 18) = 18
[pid 11206] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11206] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11206] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11206] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11206] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11206] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11206] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11207]}, 88) = 11207
./strace-static-x86_64: Process 11207 attached
[pid 11206] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11206] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11206] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11207] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11207] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11207] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11207] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11206] <... futex resumed>)        = 0
[pid 11206] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11206] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11207] <... futex resumed>)        = 1
[pid 11207] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11207] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11206] <... futex resumed>)        = 0
[pid 11206] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11206] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11207] <... futex resumed>)        = 1
[pid 11207] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11207] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11206] <... futex resumed>)        = 0
[pid 11206] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11206] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11207] <... futex resumed>)        = 1
[pid 11207] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11207] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11206] <... futex resumed>)        = 0
[pid 11206] exit_group(0)               = ?
[pid 11207] <... futex resumed>)        = ?
[pid 11207] +++ exited with 0 +++
[pid 11206] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11206, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11208
./strace-static-x86_64: Process 11208 attached
[pid 11208] set_robust_list(0x5555874576a0, 24) = 0
[pid 11208] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11208] setpgid(0, 0)               = 0
[pid 11208] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11208] write(3, "1000", 4)         = 4
[pid 11208] close(3)                    = 0
[pid 11208] write(1, "executing program\n", 18executing program
) = 18
[pid 11208] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11208] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11208] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11208] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11208] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11208] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11208] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11209 attached
 <unfinished ...>
[pid 11209] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11208] <... clone3 resumed> => {parent_tid=[11209]}, 88) = 11209
[pid 11208] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11208] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11208] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11209] <... set_robust_list resumed>) = 0
[pid 11209] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11209] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11209] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11208] <... futex resumed>)        = 0
[pid 11208] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11208] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11209] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11209] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11208] <... futex resumed>)        = 0
[pid 11209] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11208] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11208] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11209] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11209] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11209] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11208] <... futex resumed>)        = 0
[pid 11209] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11208] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11209] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11208] <... futex resumed>)        = 0
[pid 11208] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11209] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11209] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11208] <... futex resumed>)        = 0
[pid 11209] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11208] exit_group(0 <unfinished ...>
[pid 11209] <... futex resumed>)        = ?
[pid 11208] <... exit_group resumed>)   = ?
[pid 11209] +++ exited with 0 +++
[pid 11208] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11208, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11210
./strace-static-x86_64: Process 11210 attached
[pid 11210] set_robust_list(0x5555874576a0, 24) = 0
[pid 11210] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11210] setpgid(0, 0)               = 0
[pid 11210] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11210] write(3, "1000", 4)         = 4
[pid 11210] close(3)                    = 0
executing program
[pid 11210] write(1, "executing program\n", 18) = 18
[pid 11210] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11210] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11210] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11210] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11210] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11210] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11210] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11211 attached
 => {parent_tid=[11211]}, 88) = 11211
[pid 11211] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11210] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11211] <... set_robust_list resumed>) = 0
[pid 11210] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11211] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11210] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11211] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11210] <... futex resumed>)        = 0
[pid 11211] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11210] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11211] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11211] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11211] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11210] <... futex resumed>)        = 0
[pid 11210] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11211] <... futex resumed>)        = 0
[pid 11210] <... futex resumed>)        = 1
[pid 11211] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11211] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11211] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11210] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11210] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11211] <... futex resumed>)        = 0
[pid 11210] <... futex resumed>)        = 1
[pid 11211] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11210] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11211] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11211] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11210] <... futex resumed>)        = 0
[pid 11211] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11210] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11211] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11210] <... futex resumed>)        = 0
[pid 11211] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11211] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11210] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11210] exit_group(0 <unfinished ...>
[pid 11211] <... futex resumed>)        = ?
[pid 11210] <... exit_group resumed>)   = ?
[pid 11211] +++ exited with 0 +++
[pid 11210] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11210, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11212 attached
, child_tidptr=0x555587457690) = 11212
[pid 11212] set_robust_list(0x5555874576a0, 24) = 0
[pid 11212] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11212] setpgid(0, 0)               = 0
[pid 11212] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11212] write(3, "1000", 4)         = 4
[pid 11212] close(3)                    = 0
[pid 11212] write(1, "executing program\n", 18executing program
) = 18
[pid 11212] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11212] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11212] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11212] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11212] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11212] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11212] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11213 attached
 => {parent_tid=[11213]}, 88) = 11213
[pid 11213] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11213] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11213] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11212] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11212] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11213] <... futex resumed>)        = 0
[pid 11213] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11213] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11213] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11212] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11212] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11213] <... futex resumed>)        = 0
[pid 11213] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11213] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11213] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11212] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11212] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11213] <... futex resumed>)        = 0
[pid 11213] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11213] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11213] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11212] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11212] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11213] <... futex resumed>)        = 0
[pid 11213] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11213] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11213] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11212] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11212] exit_group(0)               = ?
[pid 11213] <... futex resumed>)        = ?
[pid 11213] +++ exited with 0 +++
[pid 11212] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11212, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11214
./strace-static-x86_64: Process 11214 attached
[pid 11214] set_robust_list(0x5555874576a0, 24) = 0
[pid 11214] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11214] setpgid(0, 0)               = 0
[pid 11214] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11214] write(3, "1000", 4)         = 4
[pid 11214] close(3)                    = 0
executing program
[pid 11214] write(1, "executing program\n", 18) = 18
[pid 11214] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11214] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11214] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11214] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11214] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11214] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11214] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11215 attached
 => {parent_tid=[11215]}, 88) = 11215
[pid 11215] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11214] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11214] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11214] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11215] <... set_robust_list resumed>) = 0
[pid 11215] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11215] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11215] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11214] <... futex resumed>)        = 0
[pid 11214] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11214] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11215] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11215] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11214] <... futex resumed>)        = 0
[pid 11214] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11214] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11215] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11215] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11214] <... futex resumed>)        = 0
[pid 11214] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11214] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11215] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11215] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11214] <... futex resumed>)        = 0
[pid 11214] exit_group(0)               = ?
[pid 11215] +++ exited with 0 +++
[pid 11214] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11214, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11216 attached
, child_tidptr=0x555587457690) = 11216
[pid 11216] set_robust_list(0x5555874576a0, 24) = 0
[pid 11216] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11216] setpgid(0, 0)               = 0
[pid 11216] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11216] write(3, "1000", 4)         = 4
[pid 11216] close(3)                    = 0
executing program
[pid 11216] write(1, "executing program\n", 18) = 18
[pid 11216] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11216] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11216] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11216] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11216] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11216] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11216] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11217 attached
 => {parent_tid=[11217]}, 88) = 11217
[pid 11217] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11216] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11217] <... set_robust_list resumed>) = 0
[pid 11216] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11217] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11216] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11217] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11217] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11217] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11216] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11216] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11217] <... futex resumed>)        = 0
[pid 11217] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11216] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11217] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11217] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11216] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11216] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11216] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11217] <... futex resumed>)        = 0
[pid 11217] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11217] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11216] <... futex resumed>)        = 0
[pid 11216] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11216] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11217] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11217] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11216] <... futex resumed>)        = 0
[pid 11216] exit_group(0)               = ?
[pid 11217] +++ exited with 0 +++
[pid 11216] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11216, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11218
./strace-static-x86_64: Process 11218 attached
[pid 11218] set_robust_list(0x5555874576a0, 24) = 0
[pid 11218] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11218] setpgid(0, 0)               = 0
[pid 11218] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11218] write(3, "1000", 4)         = 4
[pid 11218] close(3)                    = 0
[pid 11218] write(1, "executing program\n", 18executing program
) = 18
[pid 11218] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11218] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11218] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11218] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11218] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11218] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11218] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11219 attached
 => {parent_tid=[11219]}, 88) = 11219
[pid 11219] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11219] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11219] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11218] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11218] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11219] <... futex resumed>)        = 0
[pid 11219] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11218] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11219] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11219] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11219] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11218] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11218] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11219] <... futex resumed>)        = 0
[pid 11219] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11219] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11219] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11218] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11218] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11219] <... futex resumed>)        = 0
[pid 11219] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11218] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11219] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11219] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11218] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11218] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11219] <... futex resumed>)        = 0
[pid 11219] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11218] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11219] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11219] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11219] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11218] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11218] exit_group(0)               = ?
[pid 11219] <... futex resumed>)        = ?
[pid 11219] +++ exited with 0 +++
[pid 11218] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11218, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11220
./strace-static-x86_64: Process 11220 attached
[pid 11220] set_robust_list(0x5555874576a0, 24) = 0
[pid 11220] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11220] setpgid(0, 0)               = 0
[pid 11220] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11220] write(3, "1000", 4)         = 4
[pid 11220] close(3executing program
)                    = 0
[pid 11220] write(1, "executing program\n", 18) = 18
[pid 11220] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11220] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11220] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11220] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11220] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11220] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11220] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11221]}, 88) = 11221
./strace-static-x86_64: Process 11221 attached
[pid 11220] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11220] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11221] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11220] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11221] <... set_robust_list resumed>) = 0
[pid 11221] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11221] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11221] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11221] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11220] <... futex resumed>)        = 0
[pid 11220] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11221] <... futex resumed>)        = 0
[pid 11221] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11221] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11221] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11220] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11220] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11221] <... futex resumed>)        = 0
[pid 11221] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11221] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11221] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11220] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11220] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11221] <... futex resumed>)        = 0
[pid 11221] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11221] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11221] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11220] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11220] exit_group(0)               = ?
[pid 11221] <... futex resumed>)        = ?
[pid 11221] +++ exited with 0 +++
[pid 11220] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11220, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11222
./strace-static-x86_64: Process 11222 attached
[pid 11222] set_robust_list(0x5555874576a0, 24) = 0
[pid 11222] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11222] setpgid(0, 0)               = 0
[pid 11222] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11222] write(3, "1000", 4)         = 4
[pid 11222] close(3)                    = 0
[pid 11222] write(1, "executing program\n", 18executing program
) = 18
[pid 11222] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11222] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11222] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11222] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11222] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11222] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11222] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11223 attached
 => {parent_tid=[11223]}, 88) = 11223
[pid 11223] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11222] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11223] <... set_robust_list resumed>) = 0
[pid 11222] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11223] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11222] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11223] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11222] <... futex resumed>)        = 0
[pid 11222] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11223] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11223] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11222] <... futex resumed>)        = 0
[pid 11222] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11222] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11223] <... futex resumed>)        = 1
[pid 11223] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11223] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11222] <... futex resumed>)        = 0
[pid 11222] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11222] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11223] <... futex resumed>)        = 1
[pid 11223] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11223] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11222] <... futex resumed>)        = 0
[pid 11222] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11222] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11223] <... futex resumed>)        = 1
[pid 11223] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11223] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11222] <... futex resumed>)        = 0
[pid 11222] exit_group(0)               = ?
[pid 11223] <... futex resumed>)        = ?
[pid 11223] +++ exited with 0 +++
[pid 11222] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11222, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11224
./strace-static-x86_64: Process 11224 attached
[pid 11224] set_robust_list(0x5555874576a0, 24) = 0
[pid 11224] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11224] setpgid(0, 0)               = 0
[pid 11224] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11224] write(3, "1000", 4)         = 4
[pid 11224] close(3)                    = 0
[pid 11224] write(1, "executing program\n", 18executing program
) = 18
[pid 11224] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11224] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11224] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11224] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11224] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11224] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11224] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11225 attached
 => {parent_tid=[11225]}, 88) = 11225
[pid 11224] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11224] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11224] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11225] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11225] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11225] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11225] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11224] <... futex resumed>)        = 0
[pid 11224] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11224] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11225] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11225] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11224] <... futex resumed>)        = 0
[pid 11224] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11224] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11225] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11225] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11224] <... futex resumed>)        = 0
[pid 11224] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11224] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11225] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11225] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11224] <... futex resumed>)        = 0
[pid 11224] exit_group(0)               = ?
[pid 11225] +++ exited with 0 +++
[pid 11224] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11224, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11226
./strace-static-x86_64: Process 11226 attached
[pid 11226] set_robust_list(0x5555874576a0, 24) = 0
[pid 11226] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11226] setpgid(0, 0)               = 0
[pid 11226] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11226] write(3, "1000", 4)         = 4
[pid 11226] close(3)                    = 0
[pid 11226] write(1, "executing program\n", 18executing program
) = 18
[pid 11226] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11226] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11226] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11226] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11226] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11226] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11226] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11227 attached
 => {parent_tid=[11227]}, 88) = 11227
[pid 11226] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11226] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11226] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11227] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11227] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11227] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11227] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11226] <... futex resumed>)        = 0
[pid 11226] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11226] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11227] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11227] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11226] <... futex resumed>)        = 0
[pid 11226] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11226] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11227] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11227] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11226] <... futex resumed>)        = 0
[pid 11226] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11226] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11227] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11227] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11226] <... futex resumed>)        = 0
[pid 11226] exit_group(0)               = ?
[pid 11227] +++ exited with 0 +++
[pid 11226] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11226, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11228
./strace-static-x86_64: Process 11228 attached
[pid 11228] set_robust_list(0x5555874576a0, 24) = 0
[pid 11228] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11228] setpgid(0, 0)               = 0
[pid 11228] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11228] write(3, "1000", 4)         = 4
[pid 11228] close(3)                    = 0
[pid 11228] write(1, "executing program\n", 18executing program
) = 18
[pid 11228] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11228] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11228] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11228] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11228] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11228] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11228] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11229 attached
 => {parent_tid=[11229]}, 88) = 11229
[pid 11229] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11229] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11229] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11228] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11228] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11229] <... futex resumed>)        = 0
[pid 11229] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11228] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11229] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11229] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11229] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11228] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11228] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11229] <... futex resumed>)        = 0
[pid 11229] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11228] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11229] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11229] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11229] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11228] <... futex resumed>)        = 0
[pid 11228] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11229] <... futex resumed>)        = 0
[pid 11229] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11229] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11229] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11228] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11228] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11229] <... futex resumed>)        = 0
[pid 11228] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11229] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11229] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11228] <... futex resumed>)        = 0
[pid 11229] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11228] exit_group(0 <unfinished ...>
[pid 11229] <... futex resumed>)        = ?
[pid 11228] <... exit_group resumed>)   = ?
[pid 11229] +++ exited with 0 +++
[pid 11228] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11228, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11230
./strace-static-x86_64: Process 11230 attached
[pid 11230] set_robust_list(0x5555874576a0, 24) = 0
[pid 11230] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11230] setpgid(0, 0)               = 0
[pid 11230] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11230] write(3, "1000", 4)         = 4
[pid 11230] close(3)                    = 0
executing program
[pid 11230] write(1, "executing program\n", 18) = 18
[pid 11230] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11230] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11230] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11230] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11230] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11230] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11230] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11231]}, 88) = 11231
[pid 11230] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11230] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11230] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11231 attached
 <unfinished ...>
[pid 11231] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11231] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11231] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11231] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11230] <... futex resumed>)        = 0
[pid 11230] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11230] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11231] <... futex resumed>)        = 1
[pid 11231] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11231] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11230] <... futex resumed>)        = 0
[pid 11230] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11230] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11231] <... futex resumed>)        = 1
[pid 11231] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11231] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11230] <... futex resumed>)        = 0
[pid 11230] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11230] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11231] <... futex resumed>)        = 1
[pid 11231] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11231] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11230] <... futex resumed>)        = 0
[pid 11230] exit_group(0)               = ?
[pid 11231] <... futex resumed>)        = ?
[pid 11231] +++ exited with 0 +++
[pid 11230] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11230, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11232
./strace-static-x86_64: Process 11232 attached
[pid 11232] set_robust_list(0x5555874576a0, 24) = 0
[pid 11232] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11232] setpgid(0, 0)               = 0
[pid 11232] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11232] write(3, "1000", 4)         = 4
[pid 11232] close(3)                    = 0
[pid 11232] write(1, "executing program\n", 18executing program
) = 18
[pid 11232] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11232] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11232] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11232] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11232] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11232] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11232] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11233 attached
 <unfinished ...>
[pid 11233] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11233] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11233] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11232] <... clone3 resumed> => {parent_tid=[11233]}, 88) = 11233
[pid 11232] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11232] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11233] <... futex resumed>)        = 0
[pid 11233] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11233] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11233] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11232] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11232] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11233] <... futex resumed>)        = 0
[pid 11233] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11233] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11233] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11232] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11232] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11233] <... futex resumed>)        = 0
[pid 11233] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11233] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11233] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11232] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11232] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11233] <... futex resumed>)        = 0
[pid 11233] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11232] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11233] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11233] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11233] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11232] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11232] exit_group(0)               = ?
[pid 11233] <... futex resumed>)        = ?
[pid 11233] +++ exited with 0 +++
[pid 11232] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11232, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11234
./strace-static-x86_64: Process 11234 attached
[pid 11234] set_robust_list(0x5555874576a0, 24) = 0
[pid 11234] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11234] setpgid(0, 0)               = 0
[pid 11234] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11234] write(3, "1000", 4)         = 4
[pid 11234] close(3)                    = 0
[pid 11234] write(1, "executing program\n", 18executing program
) = 18
[pid 11234] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11234] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11234] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11234] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11234] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11234] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11234] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11235]}, 88) = 11235
./strace-static-x86_64: Process 11235 attached
[pid 11235] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11235] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11235] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11234] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11234] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11235] <... futex resumed>)        = 0
[pid 11235] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11234] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11235] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11235] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11235] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11234] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11234] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11235] <... futex resumed>)        = 0
[pid 11235] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11235] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11234] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11235] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11234] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11234] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11235] <... futex resumed>)        = 0
[pid 11235] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11234] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11235] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11234] <... futex resumed>)        = 0
[pid 11234] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11234] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11235] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11235] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11234] <... futex resumed>)        = 0
[pid 11234] exit_group(0)               = ?
[pid 11235] +++ exited with 0 +++
[pid 11234] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11234, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11236
./strace-static-x86_64: Process 11236 attached
[pid 11236] set_robust_list(0x5555874576a0, 24) = 0
[pid 11236] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11236] setpgid(0, 0)               = 0
[pid 11236] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11236] write(3, "1000", 4)         = 4
[pid 11236] close(3)                    = 0
executing program
[pid 11236] write(1, "executing program\n", 18) = 18
[pid 11236] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11236] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11236] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11236] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11236] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11236] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11236] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11237 attached
 => {parent_tid=[11237]}, 88) = 11237
[pid 11236] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11236] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11236] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11237] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11237] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11237] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11237] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11236] <... futex resumed>)        = 0
[pid 11236] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11236] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11237] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11237] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11236] <... futex resumed>)        = 0
[pid 11236] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11236] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11237] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11237] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11236] <... futex resumed>)        = 0
[pid 11236] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11236] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11237] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11237] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11236] <... futex resumed>)        = 0
[pid 11236] exit_group(0)               = ?
[pid 11237] +++ exited with 0 +++
[pid 11236] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11236, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11238
./strace-static-x86_64: Process 11238 attached
[pid 11238] set_robust_list(0x5555874576a0, 24) = 0
[pid 11238] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11238] setpgid(0, 0)               = 0
[pid 11238] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11238] write(3, "1000", 4)         = 4
[pid 11238] close(3executing program
)                    = 0
[pid 11238] write(1, "executing program\n", 18) = 18
[pid 11238] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11238] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11238] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11238] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11238] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11238] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11238] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11239]}, 88) = 11239
[pid 11238] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11238] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11238] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11239 attached
 <unfinished ...>
[pid 11239] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11239] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11239] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11239] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11239] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11238] <... futex resumed>)        = 0
[pid 11238] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11239] <... futex resumed>)        = 0
[pid 11239] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11239] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11239] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11238] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11238] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11239] <... futex resumed>)        = 0
[pid 11239] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11239] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11238] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11239] <... futex resumed>)        = 0
[pid 11238] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11239] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11238] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11239] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11238] <... futex resumed>)        = 0
[pid 11239] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11238] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11239] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11239] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11238] <... futex resumed>)        = 0
[pid 11238] exit_group(0)               = ?
[pid 11239] +++ exited with 0 +++
[pid 11238] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11238, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11240
./strace-static-x86_64: Process 11240 attached
[pid 11240] set_robust_list(0x5555874576a0, 24) = 0
[pid 11240] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11240] setpgid(0, 0)               = 0
[pid 11240] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11240] write(3, "1000", 4)         = 4
[pid 11240] close(3)                    = 0
[pid 11240] write(1, "executing program\n", 18executing program
) = 18
[pid 11240] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11240] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11240] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11240] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11240] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11240] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11240] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11241 attached
 <unfinished ...>
[pid 11241] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11241] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11241] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11240] <... clone3 resumed> => {parent_tid=[11241]}, 88) = 11241
[pid 11240] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11240] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11241] <... futex resumed>)        = 0
[pid 11240] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11241] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11241] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11240] <... futex resumed>)        = 0
[pid 11240] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11240] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11241] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11241] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11240] <... futex resumed>)        = 0
[pid 11240] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11240] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11241] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11241] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11240] <... futex resumed>)        = 0
[pid 11240] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11240] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11241] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11241] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11240] <... futex resumed>)        = 0
[pid 11240] exit_group(0)               = ?
[pid 11241] +++ exited with 0 +++
[pid 11240] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11240, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11242
./strace-static-x86_64: Process 11242 attached
[pid 11242] set_robust_list(0x5555874576a0, 24) = 0
[pid 11242] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11242] setpgid(0, 0)               = 0
[pid 11242] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11242] write(3, "1000", 4)         = 4
[pid 11242] close(3)                    = 0
[pid 11242] write(1, "executing program\n", 18executing program
) = 18
[pid 11242] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11242] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11242] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11242] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11242] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11242] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11242] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11243 attached
 => {parent_tid=[11243]}, 88) = 11243
[pid 11243] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11243] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11243] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11242] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11242] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11243] <... futex resumed>)        = 0
[pid 11243] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11243] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11243] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11242] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11242] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11243] <... futex resumed>)        = 0
[pid 11243] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11243] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11243] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11242] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11242] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11243] <... futex resumed>)        = 0
[pid 11243] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11243] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11243] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11242] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11242] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11243] <... futex resumed>)        = 0
[pid 11243] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11243] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11243] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11242] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11242] exit_group(0)               = ?
[pid 11243] <... futex resumed>)        = ?
[pid 11243] +++ exited with 0 +++
[pid 11242] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11242, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11244
./strace-static-x86_64: Process 11244 attached
[pid 11244] set_robust_list(0x5555874576a0, 24) = 0
[pid 11244] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11244] setpgid(0, 0)               = 0
[pid 11244] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11244] write(3, "1000", 4)         = 4
[pid 11244] close(3)                    = 0
executing program
[pid 11244] write(1, "executing program\n", 18) = 18
[pid 11244] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11244] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11244] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11244] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11244] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11244] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11244] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11245]}, 88) = 11245
./strace-static-x86_64: Process 11245 attached
[pid 11244] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11244] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11244] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11245] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11245] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11245] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11245] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11244] <... futex resumed>)        = 0
[pid 11244] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11244] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11245] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11245] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11244] <... futex resumed>)        = 0
[pid 11244] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11244] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11245] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11245] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11244] <... futex resumed>)        = 0
[pid 11244] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11244] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11245] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11245] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11244] <... futex resumed>)        = 0
[pid 11244] exit_group(0)               = ?
[pid 11245] +++ exited with 0 +++
[pid 11244] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11244, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11246
./strace-static-x86_64: Process 11246 attached
[pid 11246] set_robust_list(0x5555874576a0, 24) = 0
[pid 11246] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11246] setpgid(0, 0)               = 0
[pid 11246] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11246] write(3, "1000", 4)         = 4
[pid 11246] close(3)                    = 0
executing program
[pid 11246] write(1, "executing program\n", 18) = 18
[pid 11246] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11246] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11246] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11246] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11246] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11246] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11246] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11247 attached
 => {parent_tid=[11247]}, 88) = 11247
[pid 11247] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11247] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11247] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11246] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11246] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11247] <... futex resumed>)        = 0
[pid 11247] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11246] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11247] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11247] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11246] <... futex resumed>)        = 0
[pid 11246] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11247] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11246] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11247] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11247] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11246] <... futex resumed>)        = 0
[pid 11246] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11246] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11247] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11247] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11246] <... futex resumed>)        = 0
[pid 11246] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11246] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11247] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11247] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11246] <... futex resumed>)        = 0
[pid 11246] exit_group(0)               = ?
[pid 11247] +++ exited with 0 +++
[pid 11246] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11246, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11248
./strace-static-x86_64: Process 11248 attached
[pid 11248] set_robust_list(0x5555874576a0, 24) = 0
[pid 11248] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11248] setpgid(0, 0)               = 0
[pid 11248] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11248] write(3, "1000", 4)         = 4
[pid 11248] close(3)                    = 0
executing program
[pid 11248] write(1, "executing program\n", 18) = 18
[pid 11248] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11248] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11248] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11248] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11248] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11248] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11248] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11249 attached
 => {parent_tid=[11249]}, 88) = 11249
[pid 11249] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11249] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11249] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11248] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11248] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11249] <... futex resumed>)        = 0
[pid 11248] <... futex resumed>)        = 1
[pid 11249] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11248] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11249] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11249] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11249] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11248] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11248] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11249] <... futex resumed>)        = 0
[pid 11248] <... futex resumed>)        = 1
[pid 11249] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11249] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11249] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11248] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11248] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11249] <... futex resumed>)        = 0
[pid 11248] <... futex resumed>)        = 1
[pid 11249] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11249] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11249] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11248] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11248] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11249] <... futex resumed>)        = 0
[pid 11248] <... futex resumed>)        = 1
[pid 11249] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11249] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11249] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11248] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11248] exit_group(0 <unfinished ...>
[pid 11249] <... futex resumed>)        = ?
[pid 11248] <... exit_group resumed>)   = ?
[pid 11249] +++ exited with 0 +++
[pid 11248] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11248, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11250 attached
, child_tidptr=0x555587457690) = 11250
[pid 11250] set_robust_list(0x5555874576a0, 24) = 0
[pid 11250] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11250] setpgid(0, 0)               = 0
[pid 11250] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11250] write(3, "1000", 4)         = 4
[pid 11250] close(3)                    = 0
[pid 11250] write(1, "executing program\n", 18executing program
) = 18
[pid 11250] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11250] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11250] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11250] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11250] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11250] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11250] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11251]}, 88) = 11251
./strace-static-x86_64: Process 11251 attached
[pid 11251] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11251] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11251] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11250] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11250] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11251] <... futex resumed>)        = 0
[pid 11251] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11251] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11250] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11251] <... futex resumed>)        = 0
[pid 11251] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11250] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11250] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11251] <... futex resumed>)        = 0
[pid 11250] <... futex resumed>)        = 1
[pid 11251] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11250] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11251] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11251] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11250] <... futex resumed>)        = 0
[pid 11251] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11250] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11250] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11251] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11251] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11251] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11251] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11250] <... futex resumed>)        = 0
[pid 11251] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11250] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11251] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11250] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11251] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11250] <... futex resumed>)        = 0
[pid 11250] exit_group(0)               = ?
[pid 11251] +++ exited with 0 +++
[pid 11250] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11250, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11252
./strace-static-x86_64: Process 11252 attached
[pid 11252] set_robust_list(0x5555874576a0, 24) = 0
[pid 11252] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11252] setpgid(0, 0)               = 0
[pid 11252] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11252] write(3, "1000", 4)         = 4
[pid 11252] close(3)                    = 0
[pid 11252] write(1, "executing program\n", 18executing program
) = 18
[pid 11252] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11252] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11252] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11252] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11252] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11252] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11252] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11253 attached
 => {parent_tid=[11253]}, 88) = 11253
[pid 11253] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11252] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11253] <... set_robust_list resumed>) = 0
[pid 11252] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11253] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11252] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11253] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11252] <... futex resumed>)        = 0
[pid 11253] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11252] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11253] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11253] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11252] <... futex resumed>)        = 0
[pid 11252] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11252] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11253] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11253] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11252] <... futex resumed>)        = 0
[pid 11252] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11252] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11253] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11253] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11252] <... futex resumed>)        = 0
[pid 11252] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11252] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11253] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11253] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11253] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11252] <... futex resumed>)        = 0
[pid 11252] exit_group(0)               = ?
[pid 11253] <... futex resumed>)        = ?
[pid 11253] +++ exited with 0 +++
[pid 11252] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11252, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11254 attached
, child_tidptr=0x555587457690) = 11254
[pid 11254] set_robust_list(0x5555874576a0, 24) = 0
[pid 11254] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11254] setpgid(0, 0)               = 0
[pid 11254] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11254] write(3, "1000", 4)         = 4
[pid 11254] close(3)                    = 0
[pid 11254] write(1, "executing program\n", 18executing program
) = 18
[pid 11254] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11254] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11254] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11254] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11254] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11254] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11254] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11255 attached
 => {parent_tid=[11255]}, 88) = 11255
[pid 11254] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11254] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11254] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11255] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11255] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11255] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11255] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11254] <... futex resumed>)        = 0
[pid 11254] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11254] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11255] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11255] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11254] <... futex resumed>)        = 0
[pid 11254] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11254] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11255] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11255] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11254] <... futex resumed>)        = 0
[pid 11254] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11254] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11255] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11255] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11254] <... futex resumed>)        = 0
[pid 11254] exit_group(0)               = ?
[pid 11255] +++ exited with 0 +++
[pid 11254] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11254, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11256
./strace-static-x86_64: Process 11256 attached
[pid 11256] set_robust_list(0x5555874576a0, 24) = 0
[pid 11256] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11256] setpgid(0, 0)               = 0
[pid 11256] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11256] write(3, "1000", 4)         = 4
[pid 11256] close(3)                    = 0
[pid 11256] write(1, "executing program\n", 18executing program
) = 18
[pid 11256] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11256] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11256] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11256] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11256] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11256] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11256] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11257 attached
 <unfinished ...>
[pid 11257] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11256] <... clone3 resumed> => {parent_tid=[11257]}, 88) = 11257
[pid 11257] <... set_robust_list resumed>) = 0
[pid 11257] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11257] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11256] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11256] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11257] <... futex resumed>)        = 0
[pid 11257] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11256] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11257] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11257] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11257] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11256] <... futex resumed>)        = 0
[pid 11256] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11257] <... futex resumed>)        = 0
[pid 11257] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11256] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11257] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11256] <... futex resumed>)        = 0
[pid 11256] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11256] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11257] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11257] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11256] <... futex resumed>)        = 0
[pid 11256] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11256] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11257] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11257] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11256] <... futex resumed>)        = 0
[pid 11256] exit_group(0)               = ?
[pid 11257] +++ exited with 0 +++
[pid 11256] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11256, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11258
./strace-static-x86_64: Process 11258 attached
[pid 11258] set_robust_list(0x5555874576a0, 24) = 0
[pid 11258] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11258] setpgid(0, 0)               = 0
[pid 11258] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11258] write(3, "1000", 4)         = 4
executing program
[pid 11258] close(3)                    = 0
[pid 11258] write(1, "executing program\n", 18) = 18
[pid 11258] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11258] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11258] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11258] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11258] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11258] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11258] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11259 attached
 => {parent_tid=[11259]}, 88) = 11259
[pid 11258] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11258] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11258] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11259] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11259] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11259] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11259] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11258] <... futex resumed>)        = 0
[pid 11258] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11258] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11259] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11259] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11258] <... futex resumed>)        = 0
[pid 11258] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11258] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11259] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11259] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11258] <... futex resumed>)        = 0
[pid 11258] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11258] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11259] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11259] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11258] <... futex resumed>)        = 0
[pid 11258] exit_group(0)               = ?
[pid 11259] +++ exited with 0 +++
[pid 11258] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11258, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11260 attached
, child_tidptr=0x555587457690) = 11260
[pid 11260] set_robust_list(0x5555874576a0, 24) = 0
[pid 11260] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11260] setpgid(0, 0)               = 0
[pid 11260] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11260] write(3, "1000", 4)         = 4
[pid 11260] close(3)                    = 0
executing program
[pid 11260] write(1, "executing program\n", 18) = 18
[pid 11260] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11260] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11260] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11260] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11260] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11260] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11260] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11261]}, 88) = 11261
[pid 11260] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11260] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11260] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11261 attached
 <unfinished ...>
[pid 11261] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11261] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11261] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11261] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11260] <... futex resumed>)        = 0
[pid 11260] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11260] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11261] <... futex resumed>)        = 1
[pid 11261] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11261] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11260] <... futex resumed>)        = 0
[pid 11260] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11260] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11261] <... futex resumed>)        = 1
[pid 11261] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11261] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11260] <... futex resumed>)        = 0
[pid 11260] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11260] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11261] <... futex resumed>)        = 1
[pid 11261] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11261] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11260] <... futex resumed>)        = 0
[pid 11260] exit_group(0)               = ?
[pid 11261] <... futex resumed>)        = ?
[pid 11261] +++ exited with 0 +++
[pid 11260] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11260, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11262
./strace-static-x86_64: Process 11262 attached
[pid 11262] set_robust_list(0x5555874576a0, 24) = 0
[pid 11262] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11262] setpgid(0, 0)               = 0
[pid 11262] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11262] write(3, "1000", 4)         = 4
[pid 11262] close(3)                    = 0
[pid 11262] write(1, "executing program\n", 18executing program
) = 18
[pid 11262] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11262] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11262] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11262] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11262] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11262] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11262] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11263 attached
 => {parent_tid=[11263]}, 88) = 11263
[pid 11263] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11263] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11263] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11262] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11262] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11263] <... futex resumed>)        = 0
[pid 11263] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11263] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11263] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11262] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11262] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11263] <... futex resumed>)        = 0
[pid 11263] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11263] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11263] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11262] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11262] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11263] <... futex resumed>)        = 0
[pid 11263] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11263] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11263] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11262] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11262] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11263] <... futex resumed>)        = 0
[pid 11263] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11263] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11263] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11262] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11262] exit_group(0)               = ?
[pid 11263] <... futex resumed>)        = ?
[pid 11263] +++ exited with 0 +++
[pid 11262] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11262, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11264
./strace-static-x86_64: Process 11264 attached
[pid 11264] set_robust_list(0x5555874576a0, 24) = 0
[pid 11264] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11264] setpgid(0, 0)               = 0
[pid 11264] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11264] write(3, "1000", 4)         = 4
[pid 11264] close(3)                    = 0
[pid 11264] write(1, "executing program\n", 18executing program
) = 18
[pid 11264] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11264] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11264] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11264] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11264] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11264] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11264] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11265 attached
 <unfinished ...>
[pid 11265] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11265] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11265] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11264] <... clone3 resumed> => {parent_tid=[11265]}, 88) = 11265
[pid 11264] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11264] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11265] <... futex resumed>)        = 0
[pid 11265] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11264] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11265] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11265] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11264] <... futex resumed>)        = 0
[pid 11264] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11265] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11264] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11265] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11265] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11264] <... futex resumed>)        = 0
[pid 11264] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11264] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11265] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11265] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11264] <... futex resumed>)        = 0
[pid 11264] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11264] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11265] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11265] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11264] <... futex resumed>)        = 0
[pid 11264] exit_group(0)               = ?
[pid 11265] +++ exited with 0 +++
[pid 11264] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11264, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11266
./strace-static-x86_64: Process 11266 attached
[pid 11266] set_robust_list(0x5555874576a0, 24) = 0
[pid 11266] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11266] setpgid(0, 0)               = 0
[pid 11266] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11266] write(3, "1000", 4)         = 4
[pid 11266] close(3)                    = 0
[pid 11266] write(1, "executing program\n", 18executing program
) = 18
[pid 11266] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11266] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11266] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11266] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11266] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11266] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11266] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11267 attached
 => {parent_tid=[11267]}, 88) = 11267
[pid 11266] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11266] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11266] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11267] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11267] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11267] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11267] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11266] <... futex resumed>)        = 0
[pid 11266] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11266] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11267] <... futex resumed>)        = 1
[pid 11267] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11267] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11266] <... futex resumed>)        = 0
[pid 11266] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11266] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11267] <... futex resumed>)        = 1
[pid 11267] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11267] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11266] <... futex resumed>)        = 0
[pid 11266] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11266] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11267] <... futex resumed>)        = 1
[pid 11267] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11267] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11266] <... futex resumed>)        = 0
[pid 11266] exit_group(0)               = ?
[pid 11267] +++ exited with 0 +++
[pid 11266] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11266, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11268
./strace-static-x86_64: Process 11268 attached
[pid 11268] set_robust_list(0x5555874576a0, 24) = 0
[pid 11268] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11268] setpgid(0, 0)               = 0
[pid 11268] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11268] write(3, "1000", 4)         = 4
[pid 11268] close(3)                    = 0
executing program
[pid 11268] write(1, "executing program\n", 18) = 18
[pid 11268] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11268] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11268] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11268] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11268] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11268] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11268] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11269]}, 88) = 11269
./strace-static-x86_64: Process 11269 attached
[pid 11269] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11269] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11269] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11268] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11268] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11269] <... futex resumed>)        = 0
[pid 11269] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11268] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11269] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11269] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11268] <... futex resumed>)        = 0
[pid 11268] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11268] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11269] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11269] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11268] <... futex resumed>)        = 0
[pid 11268] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11268] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11269] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11269] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11268] <... futex resumed>)        = 0
[pid 11268] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11268] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11269] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11269] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11268] <... futex resumed>)        = 0
[pid 11268] exit_group(0)               = ?
[pid 11269] +++ exited with 0 +++
[pid 11268] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11268, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11270
./strace-static-x86_64: Process 11270 attached
[pid 11270] set_robust_list(0x5555874576a0, 24) = 0
[pid 11270] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11270] setpgid(0, 0)               = 0
[pid 11270] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11270] write(3, "1000", 4)         = 4
[pid 11270] close(3)                    = 0
executing program
[pid 11270] write(1, "executing program\n", 18) = 18
[pid 11270] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11270] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11270] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11270] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11270] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11270] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11270] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11271 attached
 => {parent_tid=[11271]}, 88) = 11271
[pid 11271] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11270] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11270] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11270] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11271] <... set_robust_list resumed>) = 0
[pid 11271] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11271] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11271] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11270] <... futex resumed>)        = 0
[pid 11270] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11270] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11271] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11271] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11270] <... futex resumed>)        = 0
[pid 11270] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11270] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11271] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11271] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11270] <... futex resumed>)        = 0
[pid 11270] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11270] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11271] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11271] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11270] <... futex resumed>)        = 0
[pid 11271] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11270] exit_group(0)               = ?
[pid 11271] <... futex resumed>)        = ?
[pid 11271] +++ exited with 0 +++
[pid 11270] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11270, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11272
./strace-static-x86_64: Process 11272 attached
[pid 11272] set_robust_list(0x5555874576a0, 24) = 0
[pid 11272] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11272] setpgid(0, 0)               = 0
[pid 11272] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11272] write(3, "1000", 4)         = 4
[pid 11272] close(3)                    = 0
executing program
[pid 11272] write(1, "executing program\n", 18) = 18
[pid 11272] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11272] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11272] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11272] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11272] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11272] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11272] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11273 attached
 <unfinished ...>
[pid 11273] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11272] <... clone3 resumed> => {parent_tid=[11273]}, 88) = 11273
[pid 11272] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11272] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11272] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11273] <... set_robust_list resumed>) = 0
[pid 11273] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11273] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11273] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11273] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11272] <... futex resumed>)        = 0
[pid 11272] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11273] <... futex resumed>)        = 0
[pid 11272] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11273] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11273] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11273] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11272] <... futex resumed>)        = 0
[pid 11272] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11273] <... futex resumed>)        = 0
[pid 11272] <... futex resumed>)        = 1
[pid 11273] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11273] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11273] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11272] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11272] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11273] <... futex resumed>)        = 0
[pid 11272] <... futex resumed>)        = 1
[pid 11273] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11273] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11273] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11272] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11272] exit_group(0 <unfinished ...>
[pid 11273] <... futex resumed>)        = ?
[pid 11272] <... exit_group resumed>)   = ?
[pid 11273] +++ exited with 0 +++
[pid 11272] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11272, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11274
./strace-static-x86_64: Process 11274 attached
[pid 11274] set_robust_list(0x5555874576a0, 24) = 0
[pid 11274] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11274] setpgid(0, 0)               = 0
[pid 11274] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11274] write(3, "1000", 4)         = 4
[pid 11274] close(3)                    = 0
[pid 11274] write(1, "executing program\n", 18executing program
) = 18
[pid 11274] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11274] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11274] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11274] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11274] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11274] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11274] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11275 attached
 => {parent_tid=[11275]}, 88) = 11275
[pid 11274] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11274] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11274] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11275] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11275] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11275] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11275] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11274] <... futex resumed>)        = 0
[pid 11275] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11274] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11275] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11274] <... futex resumed>)        = 0
[pid 11275] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11274] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11275] <... futex resumed>)        = 0
[pid 11274] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11275] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11274] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11275] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11274] <... futex resumed>)        = 0
[pid 11275] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11274] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11275] <... futex resumed>)        = 0
[pid 11274] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11275] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11274] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11275] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11274] <... futex resumed>)        = 0
[pid 11275] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11274] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11275] <... futex resumed>)        = 0
[pid 11274] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11275] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11274] exit_group(0 <unfinished ...>
[pid 11275] <... futex resumed>)        = ?
[pid 11274] <... exit_group resumed>)   = ?
[pid 11275] +++ exited with 0 +++
[pid 11274] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11274, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11276
./strace-static-x86_64: Process 11276 attached
[pid 11276] set_robust_list(0x5555874576a0, 24) = 0
[pid 11276] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11276] setpgid(0, 0)               = 0
[pid 11276] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11276] write(3, "1000", 4)         = 4
[pid 11276] close(3)                    = 0
[pid 11276] write(1, "executing program\n", 18executing program
) = 18
[pid 11276] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11276] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11276] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11276] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11276] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11276] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11276] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11277]}, 88) = 11277
./strace-static-x86_64: Process 11277 attached
[pid 11277] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11277] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11277] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11276] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11276] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11277] <... futex resumed>)        = 0
[pid 11276] <... futex resumed>)        = 1
[pid 11277] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11276] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11277] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11277] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11277] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11276] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11276] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11277] <... futex resumed>)        = 0
[pid 11276] <... futex resumed>)        = 1
[pid 11277] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11277] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11277] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11276] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11276] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11277] <... futex resumed>)        = 0
[pid 11276] <... futex resumed>)        = 1
[pid 11277] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11277] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11277] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11276] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11276] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11277] <... futex resumed>)        = 0
[pid 11276] <... futex resumed>)        = 1
[pid 11277] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11277] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11277] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11276] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11276] exit_group(0 <unfinished ...>
[pid 11277] <... futex resumed>)        = ?
[pid 11276] <... exit_group resumed>)   = ?
[pid 11277] +++ exited with 0 +++
[pid 11276] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11276, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11278 attached
, child_tidptr=0x555587457690) = 11278
[pid 11278] set_robust_list(0x5555874576a0, 24) = 0
[pid 11278] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11278] setpgid(0, 0)               = 0
[pid 11278] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11278] write(3, "1000", 4)         = 4
[pid 11278] close(3)                    = 0
[pid 11278] write(1, "executing program\n", 18executing program
) = 18
[pid 11278] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11278] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11278] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11278] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11278] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11278] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11278] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11279 attached
 => {parent_tid=[11279]}, 88) = 11279
[pid 11279] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11279] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11279] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11278] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11278] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11279] <... futex resumed>)        = 0
[pid 11279] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11279] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11279] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11278] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11278] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11279] <... futex resumed>)        = 0
[pid 11279] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11279] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11279] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11278] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11278] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11279] <... futex resumed>)        = 0
[pid 11279] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11279] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11279] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11278] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11278] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11279] <... futex resumed>)        = 0
[pid 11278] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11279] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11279] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11278] <... futex resumed>)        = 0
[pid 11279] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11278] exit_group(0)               = ?
[pid 11279] <... futex resumed>)        = ?
[pid 11279] +++ exited with 0 +++
[pid 11278] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11278, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11280
./strace-static-x86_64: Process 11280 attached
[pid 11280] set_robust_list(0x5555874576a0, 24) = 0
[pid 11280] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11280] setpgid(0, 0)               = 0
[pid 11280] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11280] write(3, "1000", 4)         = 4
[pid 11280] close(3)                    = 0
[pid 11280] write(1, "executing program\n", 18executing program
) = 18
[pid 11280] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11280] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11280] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11280] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11280] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11280] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11280] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11281]}, 88) = 11281
[pid 11280] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11280] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11280] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11281 attached
 <unfinished ...>
[pid 11281] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11281] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11281] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11281] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11280] <... futex resumed>)        = 0
[pid 11280] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11280] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11281] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11281] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11280] <... futex resumed>)        = 0
[pid 11280] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11280] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11281] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11281] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11280] <... futex resumed>)        = 0
[pid 11280] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11280] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11281] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11281] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11280] <... futex resumed>)        = 0
[pid 11280] exit_group(0)               = ?
[pid 11281] +++ exited with 0 +++
[pid 11280] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11280, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11282
./strace-static-x86_64: Process 11282 attached
[pid 11282] set_robust_list(0x5555874576a0, 24) = 0
[pid 11282] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11282] setpgid(0, 0)               = 0
[pid 11282] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11282] write(3, "1000", 4)         = 4
[pid 11282] close(3)                    = 0
[pid 11282] write(1, "executing program\n", 18executing program
) = 18
[pid 11282] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11282] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11282] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11282] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11282] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11282] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11282] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11283]}, 88) = 11283
./strace-static-x86_64: Process 11283 attached
[pid 11283] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11283] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11283] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11282] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11282] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11283] <... futex resumed>)        = 0
[pid 11283] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11282] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11283] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11283] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11282] <... futex resumed>)        = 0
[pid 11282] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11282] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11283] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11283] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11282] <... futex resumed>)        = 0
[pid 11283] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11282] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11283] <... futex resumed>)        = 0
[pid 11283] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11283] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11283] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11282] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11282] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11283] <... futex resumed>)        = 0
[pid 11283] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11282] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11283] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11283] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11282] <... futex resumed>)        = 0
[pid 11282] exit_group(0)               = ?
[pid 11283] +++ exited with 0 +++
[pid 11282] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11282, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11284
./strace-static-x86_64: Process 11284 attached
[pid 11284] set_robust_list(0x5555874576a0, 24) = 0
[pid 11284] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11284] setpgid(0, 0)               = 0
[pid 11284] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11284] write(3, "1000", 4)         = 4
executing program
[pid 11284] close(3)                    = 0
[pid 11284] write(1, "executing program\n", 18) = 18
[pid 11284] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11284] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11284] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11284] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11284] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11284] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11284] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11285 attached
 => {parent_tid=[11285]}, 88) = 11285
[pid 11284] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11284] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11284] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11285] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11285] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11285] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11285] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11284] <... futex resumed>)        = 0
[pid 11284] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11284] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11285] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11285] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11284] <... futex resumed>)        = 0
[pid 11284] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11284] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11285] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11285] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11284] <... futex resumed>)        = 0
[pid 11284] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11284] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11285] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11285] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11284] <... futex resumed>)        = 0
[pid 11284] exit_group(0)               = ?
[pid 11285] +++ exited with 0 +++
[pid 11284] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11284, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11286 attached
 <unfinished ...>
[pid 11286] set_robust_list(0x5555874576a0, 24) = 0
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 11286
[pid 11286] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11286] setpgid(0, 0)               = 0
[pid 11286] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11286] write(3, "1000", 4)         = 4
[pid 11286] close(3executing program
)                    = 0
[pid 11286] write(1, "executing program\n", 18) = 18
[pid 11286] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11286] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11286] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11286] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11286] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11286] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11286] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11287]}, 88) = 11287
./strace-static-x86_64: Process 11287 attached
[pid 11287] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11287] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11286] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11287] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11286] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11286] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11287] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11286] <... futex resumed>)        = 0
[pid 11286] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11287] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11287] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11286] <... futex resumed>)        = 0
[pid 11286] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11286] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11287] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11287] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11286] <... futex resumed>)        = 0
[pid 11286] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11286] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11287] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11287] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11286] <... futex resumed>)        = 0
[pid 11286] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11286] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11287] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11287] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11286] <... futex resumed>)        = 0
[pid 11286] exit_group(0)               = ?
[pid 11287] +++ exited with 0 +++
[pid 11286] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11286, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11288
./strace-static-x86_64: Process 11288 attached
[pid 11288] set_robust_list(0x5555874576a0, 24) = 0
[pid 11288] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11288] setpgid(0, 0)               = 0
[pid 11288] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11288] write(3, "1000", 4)         = 4
[pid 11288] close(3)                    = 0
executing program
[pid 11288] write(1, "executing program\n", 18) = 18
[pid 11288] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11288] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11288] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11288] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11288] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11288] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11288] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11289]}, 88) = 11289
[pid 11288] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11288] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11288] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11289 attached
 <unfinished ...>
[pid 11289] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11289] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11289] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11289] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11288] <... futex resumed>)        = 0
[pid 11288] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11288] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11289] <... futex resumed>)        = 1
[pid 11289] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11289] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11288] <... futex resumed>)        = 0
[pid 11288] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11288] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11289] <... futex resumed>)        = 1
[pid 11289] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11289] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11288] <... futex resumed>)        = 0
[pid 11288] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11288] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11289] <... futex resumed>)        = 1
[pid 11289] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11289] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11288] <... futex resumed>)        = 0
[pid 11288] exit_group(0)               = ?
[pid 11289] <... futex resumed>)        = ?
[pid 11289] +++ exited with 0 +++
[pid 11288] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11288, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11290
./strace-static-x86_64: Process 11290 attached
[pid 11290] set_robust_list(0x5555874576a0, 24) = 0
[pid 11290] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11290] setpgid(0, 0)               = 0
[pid 11290] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11290] write(3, "1000", 4)         = 4
[pid 11290] close(3)                    = 0
[pid 11290] write(1, "executing program\n", 18executing program
) = 18
[pid 11290] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11290] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11290] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11290] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11290] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11290] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11290] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11291]}, 88) = 11291
./strace-static-x86_64: Process 11291 attached
[pid 11291] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11290] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11291] <... set_robust_list resumed>) = 0
[pid 11291] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11291] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11290] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11290] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11291] <... futex resumed>)        = 0
[pid 11291] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11290] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11291] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11291] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11291] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11290] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11290] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11291] <... futex resumed>)        = 0
[pid 11291] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11291] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11291] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11290] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11290] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11291] <... futex resumed>)        = 0
[pid 11291] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11291] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11291] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11290] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11290] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11291] <... futex resumed>)        = 0
[pid 11291] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11291] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11291] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11290] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11290] exit_group(0)               = ?
[pid 11291] <... futex resumed>)        = ?
[pid 11291] +++ exited with 0 +++
[pid 11290] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11290, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11292
./strace-static-x86_64: Process 11292 attached
[pid 11292] set_robust_list(0x5555874576a0, 24) = 0
[pid 11292] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11292] setpgid(0, 0)               = 0
[pid 11292] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11292] write(3, "1000", 4)         = 4
[pid 11292] close(3)                    = 0
[pid 11292] write(1, "executing program\n", 18executing program
) = 18
[pid 11292] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11292] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11292] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11292] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11292] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11292] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11292] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11293 attached
 => {parent_tid=[11293]}, 88) = 11293
[pid 11293] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11293] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11293] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11292] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11292] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11293] <... futex resumed>)        = 0
[pid 11293] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11293] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11293] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11292] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11292] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11293] <... futex resumed>)        = 0
[pid 11293] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11293] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11293] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11292] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11292] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11293] <... futex resumed>)        = 0
[pid 11293] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11293] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11293] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11292] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11292] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11293] <... futex resumed>)        = 0
[pid 11292] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11293] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11293] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11292] <... futex resumed>)        = 0
[pid 11293] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11292] exit_group(0 <unfinished ...>
[pid 11293] <... futex resumed>)        = ?
[pid 11292] <... exit_group resumed>)   = ?
[pid 11293] +++ exited with 0 +++
[pid 11292] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11292, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11294 attached
, child_tidptr=0x555587457690) = 11294
[pid 11294] set_robust_list(0x5555874576a0, 24) = 0
[pid 11294] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11294] setpgid(0, 0)               = 0
[pid 11294] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11294] write(3, "1000", 4)         = 4
[pid 11294] close(3)                    = 0
[pid 11294] write(1, "executing program\n", 18executing program
) = 18
[pid 11294] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11294] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11294] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11294] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11294] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11294] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11294] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11295 attached
 => {parent_tid=[11295]}, 88) = 11295
[pid 11295] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11295] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11295] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11294] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11294] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11295] <... futex resumed>)        = 0
[pid 11295] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11295] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11295] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11294] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11294] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11295] <... futex resumed>)        = 0
[pid 11295] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11295] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11295] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11294] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11294] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11295] <... futex resumed>)        = 0
[pid 11295] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11295] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11295] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11294] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11294] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11295] <... futex resumed>)        = 0
[pid 11295] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11295] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11295] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11294] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11294] exit_group(0)               = ?
[pid 11295] <... futex resumed>)        = ?
[pid 11295] +++ exited with 0 +++
[pid 11294] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11294, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11296
./strace-static-x86_64: Process 11296 attached
[pid 11296] set_robust_list(0x5555874576a0, 24) = 0
[pid 11296] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11296] setpgid(0, 0)               = 0
[pid 11296] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11296] write(3, "1000", 4)         = 4
[pid 11296] close(3)                    = 0
executing program
[pid 11296] write(1, "executing program\n", 18) = 18
[pid 11296] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11296] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11296] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11296] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11296] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11296] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11296] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11297 attached
 => {parent_tid=[11297]}, 88) = 11297
[pid 11296] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11296] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11296] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11297] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11297] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11297] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11297] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11296] <... futex resumed>)        = 0
[pid 11296] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11296] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11297] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11297] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11296] <... futex resumed>)        = 0
[pid 11296] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11296] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11297] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11297] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11296] <... futex resumed>)        = 0
[pid 11296] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11296] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11297] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11297] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11296] <... futex resumed>)        = 0
[pid 11296] exit_group(0)               = ?
[pid 11297] +++ exited with 0 +++
[pid 11296] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11296, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11298
./strace-static-x86_64: Process 11298 attached
[pid 11298] set_robust_list(0x5555874576a0, 24) = 0
[pid 11298] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11298] setpgid(0, 0)               = 0
[pid 11298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11298] write(3, "1000", 4)         = 4
[pid 11298] close(3)                    = 0
[pid 11298] write(1, "executing program\n", 18executing program
) = 18
[pid 11298] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11298] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11298] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11298] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11298] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11298] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11298] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11299]}, 88) = 11299
[pid 11298] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11298] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11298] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11299 attached
 <unfinished ...>
[pid 11299] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11299] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11299] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11299] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11298] <... futex resumed>)        = 0
[pid 11298] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11298] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11299] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11299] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11298] <... futex resumed>)        = 0
[pid 11298] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11298] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11299] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11299] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11298] <... futex resumed>)        = 0
[pid 11298] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11298] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11299] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11299] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11298] <... futex resumed>)        = 0
[pid 11298] exit_group(0)               = ?
[pid 11299] +++ exited with 0 +++
[pid 11298] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11298, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11300
./strace-static-x86_64: Process 11300 attached
[pid 11300] set_robust_list(0x5555874576a0, 24) = 0
[pid 11300] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11300] setpgid(0, 0)               = 0
[pid 11300] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11300] write(3, "1000", 4)         = 4
[pid 11300] close(3)                    = 0
[pid 11300] write(1, "executing program\n", 18executing program
) = 18
[pid 11300] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11300] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11300] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11300] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11300] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11300] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11300] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11301]}, 88) = 11301
[pid 11300] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11300] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11300] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11301 attached
 <unfinished ...>
[pid 11301] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11301] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11301] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11301] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11300] <... futex resumed>)        = 0
[pid 11300] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11300] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11301] <... futex resumed>)        = 1
[pid 11301] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11301] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11300] <... futex resumed>)        = 0
[pid 11300] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11301] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11300] <... futex resumed>)        = 0
[pid 11300] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11301] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11301] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11300] <... futex resumed>)        = 0
[pid 11300] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11300] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11301] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11301] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11300] <... futex resumed>)        = 0
[pid 11300] exit_group(0)               = ?
[pid 11301] +++ exited with 0 +++
[pid 11300] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11300, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11302
./strace-static-x86_64: Process 11302 attached
[pid 11302] set_robust_list(0x5555874576a0, 24) = 0
[pid 11302] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11302] setpgid(0, 0)               = 0
[pid 11302] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11302] write(3, "1000", 4)         = 4
executing program
[pid 11302] close(3)                    = 0
[pid 11302] write(1, "executing program\n", 18) = 18
[pid 11302] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11302] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11302] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11302] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11302] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11302] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11302] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11303 attached
 => {parent_tid=[11303]}, 88) = 11303
[pid 11302] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11302] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11302] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11303] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11303] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11303] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11303] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11302] <... futex resumed>)        = 0
[pid 11302] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11302] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11303] <... futex resumed>)        = 1
[pid 11303] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11303] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11302] <... futex resumed>)        = 0
[pid 11302] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11302] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11303] <... futex resumed>)        = 1
[pid 11303] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11303] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11302] <... futex resumed>)        = 0
[pid 11302] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11302] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11303] <... futex resumed>)        = 1
[pid 11303] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11303] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11302] <... futex resumed>)        = 0
[pid 11302] exit_group(0)               = ?
[pid 11303] <... futex resumed>)        = ?
[pid 11303] +++ exited with 0 +++
[pid 11302] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11302, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11304
./strace-static-x86_64: Process 11304 attached
[pid 11304] set_robust_list(0x5555874576a0, 24) = 0
[pid 11304] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11304] setpgid(0, 0)               = 0
[pid 11304] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11304] write(3, "1000", 4)         = 4
[pid 11304] close(3)                    = 0
executing program
[pid 11304] write(1, "executing program\n", 18) = 18
[pid 11304] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11304] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11304] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11304] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11304] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11304] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11304] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11305 attached
 => {parent_tid=[11305]}, 88) = 11305
[pid 11304] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11305] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11304] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11304] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11304] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11305] <... set_robust_list resumed>) = 0
[pid 11305] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11305] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11305] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11304] <... futex resumed>)        = 0
[pid 11304] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11304] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11305] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11305] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11304] <... futex resumed>)        = 0
[pid 11304] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11304] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11305] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11305] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11304] <... futex resumed>)        = 0
[pid 11304] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11304] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11305] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11305] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11304] <... futex resumed>)        = 0
[pid 11304] exit_group(0)               = ?
[pid 11305] +++ exited with 0 +++
[pid 11304] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11304, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11306 attached
, child_tidptr=0x555587457690) = 11306
[pid 11306] set_robust_list(0x5555874576a0, 24) = 0
[pid 11306] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11306] setpgid(0, 0)               = 0
[pid 11306] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11306] write(3, "1000", 4)         = 4
[pid 11306] close(3executing program
)                    = 0
[pid 11306] write(1, "executing program\n", 18) = 18
[pid 11306] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11306] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11306] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11306] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11306] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11306] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11306] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11307 attached
 => {parent_tid=[11307]}, 88) = 11307
[pid 11307] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11306] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11306] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11306] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11307] <... set_robust_list resumed>) = 0
[pid 11307] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11307] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11307] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11306] <... futex resumed>)        = 0
[pid 11306] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11306] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11307] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11307] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11306] <... futex resumed>)        = 0
[pid 11306] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11306] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11307] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11307] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11306] <... futex resumed>)        = 0
[pid 11306] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11306] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11307] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11307] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11306] <... futex resumed>)        = 0
[pid 11307] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11306] exit_group(0)               = ?
[pid 11307] <... futex resumed>)        = ?
[pid 11307] +++ exited with 0 +++
[pid 11306] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11306, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11308 attached
, child_tidptr=0x555587457690) = 11308
[pid 11308] set_robust_list(0x5555874576a0, 24) = 0
[pid 11308] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11308] setpgid(0, 0)               = 0
[pid 11308] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11308] write(3, "1000", 4)         = 4
executing program
[pid 11308] close(3)                    = 0
[pid 11308] write(1, "executing program\n", 18) = 18
[pid 11308] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11308] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11308] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11308] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11308] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11308] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11308] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11309]}, 88) = 11309
./strace-static-x86_64: Process 11309 attached
[pid 11308] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11308] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11308] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11309] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11309] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11309] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11309] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11308] <... futex resumed>)        = 0
[pid 11308] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11308] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11309] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11309] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11308] <... futex resumed>)        = 0
[pid 11308] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11308] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11309] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11309] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11308] <... futex resumed>)        = 0
[pid 11309] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11308] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11308] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11309] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11309] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11309] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11308] <... futex resumed>)        = 0
[pid 11309] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11308] exit_group(0 <unfinished ...>
[pid 11309] <... futex resumed>)        = ?
[pid 11308] <... exit_group resumed>)   = ?
[pid 11309] +++ exited with 0 +++
[pid 11308] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11308, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11310
./strace-static-x86_64: Process 11310 attached
[pid 11310] set_robust_list(0x5555874576a0, 24) = 0
[pid 11310] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11310] setpgid(0, 0)               = 0
[pid 11310] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11310] write(3, "1000", 4)         = 4
[pid 11310] close(3)                    = 0
[pid 11310] write(1, "executing program\n", 18executing program
) = 18
[pid 11310] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11310] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11310] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11310] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11310] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11310] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11310] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11311]}, 88) = 11311
./strace-static-x86_64: Process 11311 attached
[pid 11311] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11311] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11311] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11310] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11310] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11311] <... futex resumed>)        = 0
[pid 11310] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11311] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11311] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11311] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11310] <... futex resumed>)        = 0
[pid 11310] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11311] <... futex resumed>)        = 0
[pid 11311] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11310] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11311] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11310] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11311] <... futex resumed>)        = 0
[pid 11310] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11311] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11310] <... futex resumed>)        = 0
[pid 11311] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11310] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11311] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11310] <... futex resumed>)        = 0
[pid 11310] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11310] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11311] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11311] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11310] <... futex resumed>)        = 0
[pid 11310] exit_group(0 <unfinished ...>
[pid 11311] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11310] <... exit_group resumed>)   = ?
[pid 11311] <... futex resumed>)        = ?
[pid 11311] +++ exited with 0 +++
[pid 11310] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11310, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11312
./strace-static-x86_64: Process 11312 attached
[pid 11312] set_robust_list(0x5555874576a0, 24) = 0
[pid 11312] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11312] setpgid(0, 0)               = 0
[pid 11312] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11312] write(3, "1000", 4)         = 4
[pid 11312] close(3)                    = 0
[pid 11312] write(1, "executing program\n", 18executing program
) = 18
[pid 11312] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11312] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11312] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11312] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11312] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11312] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11312] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11313]}, 88) = 11313
./strace-static-x86_64: Process 11313 attached
[pid 11312] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11312] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11312] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11313] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11313] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11313] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11313] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11312] <... futex resumed>)        = 0
[pid 11312] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11312] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11313] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11313] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11312] <... futex resumed>)        = 0
[pid 11312] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11312] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11313] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11313] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11312] <... futex resumed>)        = 0
[pid 11312] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11312] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11313] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11313] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11312] <... futex resumed>)        = 0
[pid 11312] exit_group(0)               = ?
[pid 11313] +++ exited with 0 +++
[pid 11312] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11312, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11314
./strace-static-x86_64: Process 11314 attached
[pid 11314] set_robust_list(0x5555874576a0, 24) = 0
[pid 11314] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11314] setpgid(0, 0)               = 0
[pid 11314] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11314] write(3, "1000", 4)         = 4
[pid 11314] close(3)                    = 0
[pid 11314] write(1, "executing program\n", 18executing program
) = 18
[pid 11314] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11314] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11314] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11314] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11314] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11314] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11314] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11315 attached
 <unfinished ...>
[pid 11315] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11315] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11315] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11314] <... clone3 resumed> => {parent_tid=[11315]}, 88) = 11315
[pid 11314] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11314] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11315] <... futex resumed>)        = 0
[pid 11315] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11315] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11315] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11314] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11314] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11315] <... futex resumed>)        = 0
[pid 11315] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11315] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11315] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11314] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11314] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11315] <... futex resumed>)        = 0
[pid 11315] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11315] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11315] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11314] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11314] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11315] <... futex resumed>)        = 0
[pid 11314] <... futex resumed>)        = 1
[pid 11315] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11315] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11315] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11314] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11314] exit_group(0)               = ?
[pid 11315] <... futex resumed>)        = ?
[pid 11315] +++ exited with 0 +++
[pid 11314] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11314, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11316
./strace-static-x86_64: Process 11316 attached
[pid 11316] set_robust_list(0x5555874576a0, 24) = 0
[pid 11316] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11316] setpgid(0, 0)               = 0
[pid 11316] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11316] write(3, "1000", 4executing program
)         = 4
[pid 11316] close(3)                    = 0
[pid 11316] write(1, "executing program\n", 18) = 18
[pid 11316] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11316] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11316] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11316] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11316] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11316] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11316] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11317 attached
 => {parent_tid=[11317]}, 88) = 11317
[pid 11316] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11316] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11316] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11317] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11317] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11317] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11317] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11317] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11316] <... futex resumed>)        = 0
[pid 11316] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11316] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11317] <... futex resumed>)        = 0
[pid 11317] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11317] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11316] <... futex resumed>)        = 0
[pid 11316] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11316] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11317] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11317] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11316] <... futex resumed>)        = 0
[pid 11316] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11316] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11317] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11317] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11316] <... futex resumed>)        = 0
[pid 11316] exit_group(0)               = ?
[pid 11317] +++ exited with 0 +++
[pid 11316] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11316, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11318
./strace-static-x86_64: Process 11318 attached
[pid 11318] set_robust_list(0x5555874576a0, 24) = 0
[pid 11318] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11318] setpgid(0, 0)               = 0
[pid 11318] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11318] write(3, "1000", 4)         = 4
[pid 11318] close(3)                    = 0
executing program
[pid 11318] write(1, "executing program\n", 18) = 18
[pid 11318] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11318] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11318] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11318] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11318] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11318] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11318] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11319]}, 88) = 11319
./strace-static-x86_64: Process 11319 attached
[pid 11318] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11318] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11318] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11319] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11319] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11319] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11319] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11319] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11318] <... futex resumed>)        = 0
[pid 11318] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11319] <... futex resumed>)        = 0
[pid 11319] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11318] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11319] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11319] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11318] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11318] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11318] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11319] <... futex resumed>)        = 0
[pid 11319] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11319] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11318] <... futex resumed>)        = 0
[pid 11318] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11318] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11319] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11319] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11318] <... futex resumed>)        = 0
[pid 11318] exit_group(0)               = ?
[pid 11319] +++ exited with 0 +++
[pid 11318] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11318, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11320 attached
, child_tidptr=0x555587457690) = 11320
[pid 11320] set_robust_list(0x5555874576a0, 24) = 0
[pid 11320] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11320] setpgid(0, 0)               = 0
[pid 11320] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11320] write(3, "1000", 4)         = 4
[pid 11320] close(3)                    = 0
[pid 11320] write(1, "executing program\n", 18executing program
) = 18
[pid 11320] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11320] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11320] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11320] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11320] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11320] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11320] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11321]}, 88) = 11321
./strace-static-x86_64: Process 11321 attached
[pid 11321] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11320] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11321] <... set_robust_list resumed>) = 0
[pid 11321] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11320] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11321] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11320] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11321] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11320] <... futex resumed>)        = 0
[pid 11321] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11320] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11321] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11320] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11321] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11320] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11321] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11320] <... futex resumed>)        = 0
[pid 11321] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11320] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11321] <... futex resumed>)        = 0
[pid 11320] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11321] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11320] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11321] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11320] <... futex resumed>)        = 0
[pid 11321] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11320] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11321] <... futex resumed>)        = 0
[pid 11320] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11321] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11320] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11321] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11320] <... futex resumed>)        = 0
[pid 11321] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11320] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11321] <... futex resumed>)        = 0
[pid 11320] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11321] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11320] exit_group(0 <unfinished ...>
[pid 11321] <... futex resumed>)        = ?
[pid 11320] <... exit_group resumed>)   = ?
[pid 11321] +++ exited with 0 +++
[pid 11320] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11320, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11322 attached
, child_tidptr=0x555587457690) = 11322
[pid 11322] set_robust_list(0x5555874576a0, 24) = 0
[pid 11322] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11322] setpgid(0, 0)               = 0
[pid 11322] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11322] write(3, "1000", 4)         = 4
[pid 11322] close(3)                    = 0
[pid 11322] write(1, "executing program\n", 18executing program
) = 18
[pid 11322] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11322] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11322] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11322] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11322] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11322] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11322] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11323]}, 88) = 11323
[pid 11322] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11322] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11322] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11323 attached
 <unfinished ...>
[pid 11323] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11323] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11323] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11323] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11322] <... futex resumed>)        = 0
[pid 11322] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11322] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11323] <... futex resumed>)        = 1
[pid 11323] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11323] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11322] <... futex resumed>)        = 0
[pid 11322] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11322] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11323] <... futex resumed>)        = 1
[pid 11323] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11323] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11322] <... futex resumed>)        = 0
[pid 11322] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11322] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11323] <... futex resumed>)        = 1
[pid 11323] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11323] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11322] <... futex resumed>)        = 0
[pid 11322] exit_group(0)               = ?
[pid 11323] <... futex resumed>)        = ?
[pid 11323] +++ exited with 0 +++
[pid 11322] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11322, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11324
./strace-static-x86_64: Process 11324 attached
[pid 11324] set_robust_list(0x5555874576a0, 24) = 0
[pid 11324] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11324] setpgid(0, 0)               = 0
[pid 11324] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11324] write(3, "1000", 4)         = 4
[pid 11324] close(3)                    = 0
executing program
[pid 11324] write(1, "executing program\n", 18) = 18
[pid 11324] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11324] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11324] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11324] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11324] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11324] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11324] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11325]}, 88) = 11325
[pid 11324] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11324] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11324] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11325 attached
 <unfinished ...>
[pid 11325] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11325] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11325] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11325] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11324] <... futex resumed>)        = 0
[pid 11324] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11324] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11325] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11325] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11324] <... futex resumed>)        = 0
[pid 11324] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11324] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11325] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11325] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11324] <... futex resumed>)        = 0
[pid 11324] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11324] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11325] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11325] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11324] <... futex resumed>)        = 0
[pid 11324] exit_group(0)               = ?
[pid 11325] +++ exited with 0 +++
[pid 11324] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11324, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11326
./strace-static-x86_64: Process 11326 attached
[pid 11326] set_robust_list(0x5555874576a0, 24) = 0
[pid 11326] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11326] setpgid(0, 0)               = 0
[pid 11326] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11326] write(3, "1000", 4)         = 4
[pid 11326] close(3)                    = 0
[pid 11326] write(1, "executing program\n", 18executing program
) = 18
[pid 11326] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11326] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11326] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11326] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11326] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11326] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11326] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11327 attached
 => {parent_tid=[11327]}, 88) = 11327
[pid 11327] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11327] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11327] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11326] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11326] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11327] <... futex resumed>)        = 0
[pid 11327] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11327] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11327] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11326] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11326] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11327] <... futex resumed>)        = 0
[pid 11327] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11327] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11327] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11326] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11326] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11327] <... futex resumed>)        = 0
[pid 11327] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11327] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11327] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11326] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11326] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11327] <... futex resumed>)        = 0
[pid 11326] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11327] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11327] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11327] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11326] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11326] exit_group(0)               = ?
[pid 11327] <... futex resumed>)        = ?
[pid 11327] +++ exited with 0 +++
[pid 11326] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11326, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11328 attached
, child_tidptr=0x555587457690) = 11328
[pid 11328] set_robust_list(0x5555874576a0, 24) = 0
[pid 11328] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11328] setpgid(0, 0)               = 0
[pid 11328] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11328] write(3, "1000", 4)         = 4
[pid 11328] close(3)                    = 0
[pid 11328] write(1, "executing program\n", 18executing program
) = 18
[pid 11328] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11328] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11328] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11328] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11328] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11328] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11328] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11329 attached
 => {parent_tid=[11329]}, 88) = 11329
[pid 11329] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11329] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11329] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11328] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11328] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11329] <... futex resumed>)        = 0
[pid 11329] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11329] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11329] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11328] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11328] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11329] <... futex resumed>)        = 0
[pid 11329] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11329] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11329] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11328] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11328] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11329] <... futex resumed>)        = 0
[pid 11328] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11329] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11329] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11328] <... futex resumed>)        = 0
[pid 11328] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11329] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11328] <... futex resumed>)        = 0
[pid 11329] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11329] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11328] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11329] <... futex resumed>)        = 0
[pid 11328] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11329] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11328] exit_group(0)               = ?
[pid 11329] <... futex resumed>)        = ?
[pid 11329] +++ exited with 0 +++
[pid 11328] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11328, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11330
./strace-static-x86_64: Process 11330 attached
[pid 11330] set_robust_list(0x5555874576a0, 24) = 0
[pid 11330] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11330] setpgid(0, 0)               = 0
[pid 11330] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11330] write(3, "1000", 4)         = 4
[pid 11330] close(3)                    = 0
[pid 11330] write(1, "executing program\n", 18executing program
) = 18
[pid 11330] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11330] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11330] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11330] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11330] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11330] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11330] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11331 attached
 <unfinished ...>
[pid 11331] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11330] <... clone3 resumed> => {parent_tid=[11331]}, 88) = 11331
[pid 11331] <... set_robust_list resumed>) = 0
[pid 11331] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11331] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11330] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11330] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11331] <... futex resumed>)        = 0
[pid 11331] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11331] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11331] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11330] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11330] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11331] <... futex resumed>)        = 0
[pid 11331] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11331] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11331] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11330] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11330] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11331] <... futex resumed>)        = 0
[pid 11331] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11330] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11331] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11330] <... futex resumed>)        = 0
[pid 11330] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11330] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11331] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11331] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11330] <... futex resumed>)        = 0
[pid 11330] exit_group(0)               = ?
[pid 11331] +++ exited with 0 +++
[pid 11330] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11330, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11332 attached
, child_tidptr=0x555587457690) = 11332
[pid 11332] set_robust_list(0x5555874576a0, 24) = 0
[pid 11332] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11332] setpgid(0, 0)               = 0
[pid 11332] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11332] write(3, "1000", 4executing program
)         = 4
[pid 11332] close(3)                    = 0
[pid 11332] write(1, "executing program\n", 18) = 18
[pid 11332] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11332] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11332] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11332] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11332] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11332] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11332] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11333]}, 88) = 11333
[pid 11332] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11332] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11332] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11333 attached
 <unfinished ...>
[pid 11333] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11333] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11333] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11333] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11332] <... futex resumed>)        = 0
[pid 11332] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11332] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11333] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11333] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11332] <... futex resumed>)        = 0
[pid 11332] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11332] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11333] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11333] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11332] <... futex resumed>)        = 0
[pid 11332] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11332] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11333] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11333] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11332] <... futex resumed>)        = 0
[pid 11332] exit_group(0)               = ?
[pid 11333] +++ exited with 0 +++
[pid 11332] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11332, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11334
./strace-static-x86_64: Process 11334 attached
[pid 11334] set_robust_list(0x5555874576a0, 24) = 0
[pid 11334] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11334] setpgid(0, 0)               = 0
[pid 11334] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11334] write(3, "1000", 4)         = 4
[pid 11334] close(3executing program
)                    = 0
[pid 11334] write(1, "executing program\n", 18) = 18
[pid 11334] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11334] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11334] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11334] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11334] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11334] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11334] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11335 attached
 => {parent_tid=[11335]}, 88) = 11335
[pid 11335] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11335] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11335] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11334] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11334] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11335] <... futex resumed>)        = 0
[pid 11335] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11334] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11335] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11335] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11334] <... futex resumed>)        = 0
[pid 11334] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11334] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11335] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11335] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11334] <... futex resumed>)        = 0
[pid 11334] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11334] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11335] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11335] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11334] <... futex resumed>)        = 0
[pid 11334] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11334] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11335] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11335] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11334] <... futex resumed>)        = 0
[pid 11334] exit_group(0)               = ?
[pid 11335] +++ exited with 0 +++
[pid 11334] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11334, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11336
./strace-static-x86_64: Process 11336 attached
[pid 11336] set_robust_list(0x5555874576a0, 24) = 0
[pid 11336] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11336] setpgid(0, 0)               = 0
[pid 11336] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11336] write(3, "1000", 4)         = 4
[pid 11336] close(3)                    = 0
executing program
[pid 11336] write(1, "executing program\n", 18) = 18
[pid 11336] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11336] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11336] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11336] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11336] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11336] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11336] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11337 attached
 <unfinished ...>
[pid 11337] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11336] <... clone3 resumed> => {parent_tid=[11337]}, 88) = 11337
[pid 11336] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11336] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11336] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11337] <... set_robust_list resumed>) = 0
[pid 11337] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11337] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11337] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11337] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11336] <... futex resumed>)        = 0
[pid 11336] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11337] <... futex resumed>)        = 0
[pid 11337] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11336] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11337] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11337] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11336] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11336] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11337] <... futex resumed>)        = 0
[pid 11336] <... futex resumed>)        = 1
[pid 11337] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11337] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11337] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11336] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11336] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11337] <... futex resumed>)        = 0
[pid 11336] <... futex resumed>)        = 1
[pid 11337] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11337] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11337] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11336] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11336] exit_group(0 <unfinished ...>
[pid 11337] <... futex resumed>)        = ?
[pid 11336] <... exit_group resumed>)   = ?
[pid 11337] +++ exited with 0 +++
[pid 11336] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11336, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11338
./strace-static-x86_64: Process 11338 attached
[pid 11338] set_robust_list(0x5555874576a0, 24) = 0
[pid 11338] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11338] setpgid(0, 0)               = 0
[pid 11338] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11338] write(3, "1000", 4)         = 4
[pid 11338] close(3)                    = 0
[pid 11338] write(1, "executing program\n", 18executing program
) = 18
[pid 11338] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11338] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11338] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11338] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11338] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11338] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11338] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11339 attached
 => {parent_tid=[11339]}, 88) = 11339
[pid 11339] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11339] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11339] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11338] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11338] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11339] <... futex resumed>)        = 0
[pid 11339] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11339] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11339] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11338] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11338] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11339] <... futex resumed>)        = 0
[pid 11339] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11339] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11339] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11338] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11338] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11339] <... futex resumed>)        = 0
[pid 11339] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11339] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11339] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11338] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11338] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11339] <... futex resumed>)        = 0
[pid 11339] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11339] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11339] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11338] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11338] exit_group(0)               = ?
[pid 11339] <... futex resumed>)        = ?
[pid 11339] +++ exited with 0 +++
[pid 11338] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11338, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11340
./strace-static-x86_64: Process 11340 attached
[pid 11340] set_robust_list(0x5555874576a0, 24) = 0
[pid 11340] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11340] setpgid(0, 0)               = 0
[pid 11340] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11340] write(3, "1000", 4)         = 4
[pid 11340] close(3)                    = 0
[pid 11340] write(1, "executing program\n", 18executing program
) = 18
[pid 11340] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11340] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11340] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11340] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11340] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11340] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11340] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11341]}, 88) = 11341
./strace-static-x86_64: Process 11341 attached
[pid 11341] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11341] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11341] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11340] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11340] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11341] <... futex resumed>)        = 0
[pid 11341] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11341] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11341] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11340] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11340] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11341] <... futex resumed>)        = 0
[pid 11341] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11341] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11341] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11340] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11340] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11341] <... futex resumed>)        = 0
[pid 11341] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11341] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11341] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11340] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11340] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11341] <... futex resumed>)        = 0
[pid 11341] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11341] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11341] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11340] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11340] exit_group(0)               = ?
[pid 11341] <... futex resumed>)        = ?
[pid 11341] +++ exited with 0 +++
[pid 11340] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11340, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11342
./strace-static-x86_64: Process 11342 attached
[pid 11342] set_robust_list(0x5555874576a0, 24) = 0
[pid 11342] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11342] setpgid(0, 0)               = 0
[pid 11342] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11342] write(3, "1000", 4)         = 4
[pid 11342] close(3)                    = 0
executing program
[pid 11342] write(1, "executing program\n", 18) = 18
[pid 11342] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11342] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11342] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11342] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11342] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11342] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11342] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11343 attached
 => {parent_tid=[11343]}, 88) = 11343
[pid 11342] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11342] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11342] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11343] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11343] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11343] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11343] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11342] <... futex resumed>)        = 0
[pid 11342] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11342] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11343] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11343] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11342] <... futex resumed>)        = 0
[pid 11342] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11342] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11343] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11343] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11342] <... futex resumed>)        = 0
[pid 11342] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11343] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11342] <... futex resumed>)        = 0
[pid 11342] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11343] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11343] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11342] <... futex resumed>)        = 0
[pid 11342] exit_group(0)               = ?
[pid 11343] +++ exited with 0 +++
[pid 11342] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11342, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11344
./strace-static-x86_64: Process 11344 attached
[pid 11344] set_robust_list(0x5555874576a0, 24) = 0
[pid 11344] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11344] setpgid(0, 0)               = 0
[pid 11344] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11344] write(3, "1000", 4)         = 4
[pid 11344] close(3)                    = 0
executing program
[pid 11344] write(1, "executing program\n", 18) = 18
[pid 11344] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11344] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11344] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11344] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11344] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11344] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11344] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11345 attached
 => {parent_tid=[11345]}, 88) = 11345
[pid 11345] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11344] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11345] <... set_robust_list resumed>) = 0
[pid 11344] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11345] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11344] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11345] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11344] <... futex resumed>)        = 0
[pid 11345] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11344] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11345] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11345] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11344] <... futex resumed>)        = 0
[pid 11345] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11344] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11345] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11344] <... futex resumed>)        = 0
[pid 11345] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11344] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11345] <... futex resumed>)        = 0
[pid 11344] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11345] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11344] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11345] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11344] <... futex resumed>)        = 0
[pid 11345] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11344] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11345] <... futex resumed>)        = 0
[pid 11344] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11345] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11344] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11345] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11344] <... futex resumed>)        = 0
[pid 11345] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11344] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11345] <... futex resumed>)        = 0
[pid 11344] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11345] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11344] exit_group(0 <unfinished ...>
[pid 11345] <... futex resumed>)        = ?
[pid 11344] <... exit_group resumed>)   = ?
[pid 11345] +++ exited with 0 +++
[pid 11344] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11344, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11346
./strace-static-x86_64: Process 11346 attached
[pid 11346] set_robust_list(0x5555874576a0, 24) = 0
[pid 11346] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11346] setpgid(0, 0)               = 0
[pid 11346] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11346] write(3, "1000", 4)         = 4
[pid 11346] close(3)                    = 0
[pid 11346] write(1, "executing program\n", 18executing program
) = 18
[pid 11346] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11346] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11346] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11346] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11346] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11346] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11346] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11347]}, 88) = 11347
./strace-static-x86_64: Process 11347 attached
[pid 11346] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11346] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11346] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11347] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11347] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11347] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11347] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11346] <... futex resumed>)        = 0
[pid 11346] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11346] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11347] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11347] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11346] <... futex resumed>)        = 0
[pid 11346] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11346] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11347] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11347] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11346] <... futex resumed>)        = 0
[pid 11346] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11346] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11347] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11347] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11346] <... futex resumed>)        = 0
[pid 11346] exit_group(0)               = ?
[pid 11347] +++ exited with 0 +++
[pid 11346] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11346, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11348
./strace-static-x86_64: Process 11348 attached
[pid 11348] set_robust_list(0x5555874576a0, 24) = 0
[pid 11348] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11348] setpgid(0, 0)               = 0
[pid 11348] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11348] write(3, "1000", 4)         = 4
[pid 11348] close(3)                    = 0
[pid 11348] write(1, "executing program\n", 18executing program
) = 18
[pid 11348] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11348] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11348] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11348] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11348] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11348] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11348] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11349 attached
 => {parent_tid=[11349]}, 88) = 11349
[pid 11349] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11349] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11349] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11348] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11348] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11349] <... futex resumed>)        = 0
[pid 11349] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11349] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11349] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11348] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11348] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11349] <... futex resumed>)        = 0
[pid 11349] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11349] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11349] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11348] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11348] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11349] <... futex resumed>)        = 0
[pid 11349] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11349] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11349] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11348] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11348] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11349] <... futex resumed>)        = 0
[pid 11349] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11349] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11349] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11348] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11348] exit_group(0)               = ?
[pid 11349] <... futex resumed>)        = ?
[pid 11349] +++ exited with 0 +++
[pid 11348] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11348, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11350 attached
, child_tidptr=0x555587457690) = 11350
[pid 11350] set_robust_list(0x5555874576a0, 24) = 0
[pid 11350] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11350] setpgid(0, 0)               = 0
[pid 11350] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11350] write(3, "1000", 4)         = 4
[pid 11350] close(3)                    = 0
executing program
[pid 11350] write(1, "executing program\n", 18) = 18
[pid 11350] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11350] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11350] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11350] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11350] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11350] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11350] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11351 attached
 => {parent_tid=[11351]}, 88) = 11351
[pid 11350] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11350] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11350] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11351] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11351] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11351] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11351] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11350] <... futex resumed>)        = 0
[pid 11350] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11350] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11351] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11351] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11350] <... futex resumed>)        = 0
[pid 11350] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11350] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11351] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11351] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11350] <... futex resumed>)        = 0
[pid 11350] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11350] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11351] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11351] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11350] <... futex resumed>)        = 0
[pid 11350] exit_group(0)               = ?
[pid 11351] +++ exited with 0 +++
[pid 11350] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11350, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11352
./strace-static-x86_64: Process 11352 attached
[pid 11352] set_robust_list(0x5555874576a0, 24) = 0
[pid 11352] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11352] setpgid(0, 0)               = 0
[pid 11352] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11352] write(3, "1000", 4)         = 4
[pid 11352] close(3)                    = 0
[pid 11352] write(1, "executing program\n", 18executing program
) = 18
[pid 11352] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11352] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11352] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11352] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11352] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11352] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11352] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11353 attached
 => {parent_tid=[11353]}, 88) = 11353
[pid 11353] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11353] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11353] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11352] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11352] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11353] <... futex resumed>)        = 0
[pid 11353] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11352] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11353] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11353] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11353] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11352] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11352] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11353] <... futex resumed>)        = 0
[pid 11353] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11352] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11353] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11353] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11353] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11352] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11352] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11353] <... futex resumed>)        = 0
[pid 11353] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11353] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11353] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11352] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11352] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11353] <... futex resumed>)        = 0
[pid 11353] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11352] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11353] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11353] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11352] <... futex resumed>)        = 0
[pid 11353] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11352] exit_group(0)               = ?
[pid 11353] <... futex resumed>)        = ?
[pid 11353] +++ exited with 0 +++
[pid 11352] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11352, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11354 attached
, child_tidptr=0x555587457690) = 11354
[pid 11354] set_robust_list(0x5555874576a0, 24) = 0
[pid 11354] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11354] setpgid(0, 0)               = 0
[pid 11354] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11354] write(3, "1000", 4)         = 4
[pid 11354] close(3)                    = 0
executing program
[pid 11354] write(1, "executing program\n", 18) = 18
[pid 11354] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11354] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11354] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11354] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11354] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11354] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11354] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11355 attached
 => {parent_tid=[11355]}, 88) = 11355
[pid 11354] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11354] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11354] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11355] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11355] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11355] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11355] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11354] <... futex resumed>)        = 0
[pid 11354] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11354] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11355] <... futex resumed>)        = 1
[pid 11355] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11355] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11354] <... futex resumed>)        = 0
[pid 11355] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11354] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11354] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11355] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11355] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11354] <... futex resumed>)        = 0
[pid 11354] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11354] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11355] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11355] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11354] <... futex resumed>)        = 0
[pid 11354] exit_group(0)               = ?
[pid 11355] +++ exited with 0 +++
[pid 11354] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11354, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11356
./strace-static-x86_64: Process 11356 attached
[pid 11356] set_robust_list(0x5555874576a0, 24) = 0
[pid 11356] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11356] setpgid(0, 0)               = 0
[pid 11356] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11356] write(3, "1000", 4)         = 4
[pid 11356] close(3)                    = 0
[pid 11356] write(1, "executing program\n", 18executing program
) = 18
[pid 11356] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11356] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11356] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11356] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11356] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11356] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11356] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11357 attached
 => {parent_tid=[11357]}, 88) = 11357
[pid 11357] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11357] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11357] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11356] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11356] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11357] <... futex resumed>)        = 0
[pid 11357] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11356] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11357] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11357] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11356] <... futex resumed>)        = 0
[pid 11356] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11356] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11357] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11357] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11356] <... futex resumed>)        = 0
[pid 11356] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11356] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11357] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11357] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11356] <... futex resumed>)        = 0
[pid 11356] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11356] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11357] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11357] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11356] <... futex resumed>)        = 0
[pid 11356] exit_group(0)               = ?
[pid 11357] +++ exited with 0 +++
[pid 11356] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11356, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11358
./strace-static-x86_64: Process 11358 attached
[pid 11358] set_robust_list(0x5555874576a0, 24) = 0
[pid 11358] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11358] setpgid(0, 0)               = 0
[pid 11358] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11358] write(3, "1000", 4)         = 4
[pid 11358] close(3)                    = 0
[pid 11358] write(1, "executing program\n", 18executing program
) = 18
[pid 11358] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11358] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11358] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11358] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11358] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11358] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11358] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11359]}, 88) = 11359
[pid 11358] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11358] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11358] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11359 attached
 <unfinished ...>
[pid 11359] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11359] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11359] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11359] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11358] <... futex resumed>)        = 0
[pid 11358] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11358] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11359] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11359] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11358] <... futex resumed>)        = 0
[pid 11358] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11358] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11359] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11359] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11358] <... futex resumed>)        = 0
[pid 11358] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11358] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11359] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11359] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11358] <... futex resumed>)        = 0
[pid 11358] exit_group(0)               = ?
[pid 11359] +++ exited with 0 +++
[pid 11358] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11358, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11360 attached
 <unfinished ...>
[pid 11360] set_robust_list(0x5555874576a0, 24) = 0
[pid 11360] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11360] setpgid(0, 0)               = 0
[pid 11360] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 11360
[pid 11360] write(3, "1000", 4)         = 4
[pid 11360] close(3executing program
)                    = 0
[pid 11360] write(1, "executing program\n", 18) = 18
[pid 11360] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11360] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11360] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11360] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11360] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11360] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11360] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11361]}, 88) = 11361
./strace-static-x86_64: Process 11361 attached
[pid 11361] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11361] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11361] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11360] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11360] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11361] <... futex resumed>)        = 0
[pid 11361] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11361] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11361] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11360] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11360] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11361] <... futex resumed>)        = 0
[pid 11361] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11360] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11361] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11360] <... futex resumed>)        = 0
[pid 11360] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11361] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11360] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11361] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11361] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11360] <... futex resumed>)        = 0
[pid 11360] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11360] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11361] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11361] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11360] <... futex resumed>)        = 0
[pid 11360] exit_group(0)               = ?
[pid 11361] +++ exited with 0 +++
[pid 11360] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11360, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11362
./strace-static-x86_64: Process 11362 attached
[pid 11362] set_robust_list(0x5555874576a0, 24) = 0
[pid 11362] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11362] setpgid(0, 0)               = 0
[pid 11362] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11362] write(3, "1000", 4)         = 4
[pid 11362] close(3)                    = 0
[pid 11362] write(1, "executing program\n", 18executing program
) = 18
[pid 11362] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11362] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11362] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11362] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11362] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11362] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11362] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11363 attached
 => {parent_tid=[11363]}, 88) = 11363
[pid 11363] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11362] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11363] <... set_robust_list resumed>) = 0
[pid 11363] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11362] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11363] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11362] <... futex resumed>)        = 0
[pid 11363] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11362] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11363] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11363] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11362] <... futex resumed>)        = 0
[pid 11363] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11362] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11363] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11362] <... futex resumed>)        = 0
[pid 11363] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11362] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11363] <... futex resumed>)        = 0
[pid 11362] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11363] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11362] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11363] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11362] <... futex resumed>)        = 0
[pid 11363] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11362] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11363] <... futex resumed>)        = 0
[pid 11362] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11363] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11362] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11363] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11362] <... futex resumed>)        = 0
[pid 11362] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11363] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11362] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11362] exit_group(0)               = ?
[pid 11363] <... futex resumed>)        = ?
[pid 11363] +++ exited with 0 +++
[pid 11362] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11362, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11364
./strace-static-x86_64: Process 11364 attached
[pid 11364] set_robust_list(0x5555874576a0, 24) = 0
[pid 11364] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11364] setpgid(0, 0)               = 0
[pid 11364] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11364] write(3, "1000", 4)         = 4
[pid 11364] close(3)                    = 0
[pid 11364] write(1, "executing program\n", 18executing program
) = 18
[pid 11364] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11364] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11364] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11364] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11364] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11364] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11364] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11365]}, 88) = 11365
[pid 11364] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11364] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11364] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11365 attached
 <unfinished ...>
[pid 11365] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11365] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11365] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11365] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11364] <... futex resumed>)        = 0
[pid 11364] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11364] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11365] <... futex resumed>)        = 1
[pid 11365] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11365] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11364] <... futex resumed>)        = 0
[pid 11364] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11364] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11365] <... futex resumed>)        = 1
[pid 11365] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11365] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11364] <... futex resumed>)        = 0
[pid 11364] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11364] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11365] <... futex resumed>)        = 1
[pid 11365] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11365] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11364] <... futex resumed>)        = 0
[pid 11364] exit_group(0)               = ?
[pid 11365] <... futex resumed>)        = ?
[pid 11365] +++ exited with 0 +++
[pid 11364] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11364, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11366
./strace-static-x86_64: Process 11366 attached
[pid 11366] set_robust_list(0x5555874576a0, 24) = 0
[pid 11366] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11366] setpgid(0, 0)               = 0
[pid 11366] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11366] write(3, "1000", 4)         = 4
[pid 11366] close(3)                    = 0
[pid 11366] write(1, "executing program\n", 18executing program
) = 18
[pid 11366] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11366] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11366] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11366] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11366] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11366] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11366] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11367 attached
 => {parent_tid=[11367]}, 88) = 11367
[pid 11367] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11366] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11366] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11366] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11367] <... set_robust_list resumed>) = 0
[pid 11367] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11367] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11367] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11367] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11366] <... futex resumed>)        = 0
[pid 11366] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11367] <... futex resumed>)        = 0
[pid 11367] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11366] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11367] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11367] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11366] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11366] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11367] <... futex resumed>)        = 0
[pid 11367] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11367] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11367] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11366] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11366] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11367] <... futex resumed>)        = 0
[pid 11367] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11367] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11367] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11366] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11366] exit_group(0)               = ?
[pid 11367] <... futex resumed>)        = ?
[pid 11367] +++ exited with 0 +++
[pid 11366] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11366, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11368 attached
, child_tidptr=0x555587457690) = 11368
[pid 11368] set_robust_list(0x5555874576a0, 24) = 0
[pid 11368] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11368] setpgid(0, 0)               = 0
[pid 11368] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11368] write(3, "1000", 4executing program
)         = 4
[pid 11368] close(3)                    = 0
[pid 11368] write(1, "executing program\n", 18) = 18
[pid 11368] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11368] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11368] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11368] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11368] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11368] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11368] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11369]}, 88) = 11369
[pid 11368] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11368] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11368] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11369 attached
 <unfinished ...>
[pid 11369] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11369] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11369] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11369] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11368] <... futex resumed>)        = 0
[pid 11368] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11368] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11369] <... futex resumed>)        = 1
[pid 11369] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11369] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11368] <... futex resumed>)        = 0
[pid 11368] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11368] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11369] <... futex resumed>)        = 1
[pid 11369] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11369] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11368] <... futex resumed>)        = 0
[pid 11368] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11368] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11369] <... futex resumed>)        = 1
[pid 11369] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11369] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11368] <... futex resumed>)        = 0
[pid 11368] exit_group(0)               = ?
[pid 11369] <... futex resumed>)        = ?
[pid 11369] +++ exited with 0 +++
[pid 11368] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11368, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11370
./strace-static-x86_64: Process 11370 attached
[pid 11370] set_robust_list(0x5555874576a0, 24) = 0
[pid 11370] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11370] setpgid(0, 0)               = 0
[pid 11370] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11370] write(3, "1000", 4)         = 4
[pid 11370] close(3)                    = 0
executing program
[pid 11370] write(1, "executing program\n", 18) = 18
[pid 11370] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11370] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11370] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11370] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11370] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11370] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11370] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11371]}, 88) = 11371
./strace-static-x86_64: Process 11371 attached
[pid 11370] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11370] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11370] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11371] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11371] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11371] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11371] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11370] <... futex resumed>)        = 0
[pid 11370] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11370] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11371] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11371] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11370] <... futex resumed>)        = 0
[pid 11370] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11370] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11371] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11371] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11370] <... futex resumed>)        = 0
[pid 11370] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11370] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11371] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11371] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11370] <... futex resumed>)        = 0
[pid 11370] exit_group(0)               = ?
[pid 11371] +++ exited with 0 +++
[pid 11370] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11370, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11372
./strace-static-x86_64: Process 11372 attached
[pid 11372] set_robust_list(0x5555874576a0, 24) = 0
[pid 11372] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11372] setpgid(0, 0)               = 0
[pid 11372] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11372] write(3, "1000", 4)         = 4
[pid 11372] close(3)                    = 0
[pid 11372] write(1, "executing program\n", 18executing program
) = 18
[pid 11372] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11372] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11372] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11372] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11372] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11372] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11372] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11373 attached
 => {parent_tid=[11373]}, 88) = 11373
[pid 11373] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11373] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11373] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11372] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11372] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11372] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11373] <... futex resumed>)        = 0
[pid 11373] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11373] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11372] <... futex resumed>)        = 0
[pid 11372] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11372] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11373] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11373] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11372] <... futex resumed>)        = 0
[pid 11372] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11372] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11373] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11373] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11372] <... futex resumed>)        = 0
[pid 11372] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11372] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11373] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11373] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11372] <... futex resumed>)        = 0
[pid 11372] exit_group(0)               = ?
[pid 11373] +++ exited with 0 +++
[pid 11372] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11372, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11374 attached
, child_tidptr=0x555587457690) = 11374
[pid 11374] set_robust_list(0x5555874576a0, 24) = 0
[pid 11374] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11374] setpgid(0, 0)               = 0
[pid 11374] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11374] write(3, "1000", 4)         = 4
[pid 11374] close(3)                    = 0
[pid 11374] write(1, "executing program\n", 18executing program
) = 18
[pid 11374] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11374] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11374] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11374] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11374] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11374] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11374] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11375 attached
 => {parent_tid=[11375]}, 88) = 11375
[pid 11375] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11374] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11374] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11374] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11375] <... set_robust_list resumed>) = 0
[pid 11375] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11375] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11375] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11375] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11374] <... futex resumed>)        = 0
[pid 11374] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11374] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11375] <... futex resumed>)        = 0
[pid 11375] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11375] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11374] <... futex resumed>)        = 0
[pid 11374] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11374] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11375] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11375] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11374] <... futex resumed>)        = 0
[pid 11374] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11374] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11375] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11375] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11374] <... futex resumed>)        = 0
[pid 11374] exit_group(0)               = ?
[pid 11375] +++ exited with 0 +++
[pid 11374] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11374, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11376
./strace-static-x86_64: Process 11376 attached
[pid 11376] set_robust_list(0x5555874576a0, 24) = 0
[pid 11376] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11376] setpgid(0, 0)               = 0
[pid 11376] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11376] write(3, "1000", 4)         = 4
[pid 11376] close(3)                    = 0
executing program
[pid 11376] write(1, "executing program\n", 18) = 18
[pid 11376] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11376] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11376] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11376] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11376] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11376] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11376] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11377 attached
 => {parent_tid=[11377]}, 88) = 11377
[pid 11376] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11376] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11376] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11377] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11377] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11377] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11377] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11376] <... futex resumed>)        = 0
[pid 11376] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11376] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11377] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11377] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11376] <... futex resumed>)        = 0
[pid 11377] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11376] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11376] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11377] <... futex resumed>)        = 0
[pid 11377] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11377] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11377] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11376] <... futex resumed>)        = 0
[pid 11376] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11376] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11377] <... futex resumed>)        = 0
[pid 11377] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11377] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11376] <... futex resumed>)        = 0
[pid 11376] exit_group(0)               = ?
[pid 11377] +++ exited with 0 +++
[pid 11376] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11376, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11378
./strace-static-x86_64: Process 11378 attached
[pid 11378] set_robust_list(0x5555874576a0, 24) = 0
[pid 11378] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11378] setpgid(0, 0)               = 0
[pid 11378] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11378] write(3, "1000", 4)         = 4
[pid 11378] close(3)                    = 0
executing program
[pid 11378] write(1, "executing program\n", 18) = 18
[pid 11378] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11378] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11378] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11378] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11378] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11378] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11378] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11379 attached
 <unfinished ...>
[pid 11379] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11378] <... clone3 resumed> => {parent_tid=[11379]}, 88) = 11379
[pid 11378] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11378] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11378] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11379] <... set_robust_list resumed>) = 0
[pid 11379] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11379] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11379] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11379] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11378] <... futex resumed>)        = 0
[pid 11378] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11379] <... futex resumed>)        = 0
[pid 11379] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11378] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11379] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11378] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11379] <... futex resumed>)        = 0
[pid 11378] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11379] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11378] <... futex resumed>)        = 0
[pid 11379] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11378] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11379] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11378] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11379] <... futex resumed>)        = 0
[pid 11378] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11379] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11378] <... futex resumed>)        = 0
[pid 11379] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11378] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11379] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11378] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11379] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11378] exit_group(0 <unfinished ...>
[pid 11379] <... futex resumed>)        = ?
[pid 11378] <... exit_group resumed>)   = ?
[pid 11379] +++ exited with 0 +++
[pid 11378] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11378, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11380
./strace-static-x86_64: Process 11380 attached
[pid 11380] set_robust_list(0x5555874576a0, 24) = 0
[pid 11380] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11380] setpgid(0, 0)               = 0
[pid 11380] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11380] write(3, "1000", 4)         = 4
[pid 11380] close(3)                    = 0
[pid 11380] write(1, "executing program\n", 18executing program
) = 18
[pid 11380] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11380] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11380] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11380] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11380] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11380] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11380] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11381 attached
 => {parent_tid=[11381]}, 88) = 11381
[pid 11381] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11381] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11381] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11380] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11380] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11381] <... futex resumed>)        = 0
[pid 11381] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11381] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11381] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11380] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11380] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11381] <... futex resumed>)        = 0
[pid 11381] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11381] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11381] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11380] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11380] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11381] <... futex resumed>)        = 0
[pid 11381] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11381] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11381] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11380] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11380] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11381] <... futex resumed>)        = 0
[pid 11381] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11381] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11381] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11380] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11380] exit_group(0)               = ?
[pid 11381] <... futex resumed>)        = ?
[pid 11381] +++ exited with 0 +++
[pid 11380] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11380, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11382
./strace-static-x86_64: Process 11382 attached
[pid 11382] set_robust_list(0x5555874576a0, 24) = 0
[pid 11382] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11382] setpgid(0, 0)               = 0
[pid 11382] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11382] write(3, "1000", 4)         = 4
[pid 11382] close(3)                    = 0
executing program
[pid 11382] write(1, "executing program\n", 18) = 18
[pid 11382] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11382] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11382] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11382] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11382] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11382] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11382] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11383 attached
 => {parent_tid=[11383]}, 88) = 11383
[pid 11382] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11382] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11382] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11383] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11383] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11383] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11383] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11382] <... futex resumed>)        = 0
[pid 11382] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11382] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11383] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11383] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11382] <... futex resumed>)        = 0
[pid 11382] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11382] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11383] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11383] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11382] <... futex resumed>)        = 0
[pid 11382] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11382] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11383] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11383] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11382] <... futex resumed>)        = 0
[pid 11382] exit_group(0)               = ?
[pid 11383] +++ exited with 0 +++
[pid 11382] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11382, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11384
./strace-static-x86_64: Process 11384 attached
[pid 11384] set_robust_list(0x5555874576a0, 24) = 0
[pid 11384] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11384] setpgid(0, 0)               = 0
[pid 11384] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11384] write(3, "1000", 4)         = 4
[pid 11384] close(3)                    = 0
[pid 11384] write(1, "executing program\n", 18executing program
) = 18
[pid 11384] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11384] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11384] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11384] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11384] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11384] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11384] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11385 attached
 => {parent_tid=[11385]}, 88) = 11385
[pid 11385] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11385] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11385] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11384] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11384] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11385] <... futex resumed>)        = 0
[pid 11385] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11384] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11385] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11385] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11384] <... futex resumed>)        = 0
[pid 11384] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11384] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11385] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11385] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11384] <... futex resumed>)        = 0
[pid 11384] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11384] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11385] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11385] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11384] <... futex resumed>)        = 0
[pid 11384] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11384] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11385] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11385] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11384] <... futex resumed>)        = 0
[pid 11384] exit_group(0)               = ?
[pid 11385] +++ exited with 0 +++
[pid 11384] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11384, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11386
./strace-static-x86_64: Process 11386 attached
[pid 11386] set_robust_list(0x5555874576a0, 24) = 0
[pid 11386] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11386] setpgid(0, 0)               = 0
[pid 11386] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11386] write(3, "1000", 4executing program
)         = 4
[pid 11386] close(3)                    = 0
[pid 11386] write(1, "executing program\n", 18) = 18
[pid 11386] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11386] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11386] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11386] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11386] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11386] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11386] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11387 attached
 => {parent_tid=[11387]}, 88) = 11387
[pid 11387] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11387] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11387] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11386] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11386] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11387] <... futex resumed>)        = 0
[pid 11386] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11387] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11387] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11387] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11386] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11386] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11387] <... futex resumed>)        = 0
[pid 11386] <... futex resumed>)        = 1
[pid 11387] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11386] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11387] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11387] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11386] <... futex resumed>)        = 0
[pid 11386] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11386] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11387] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11387] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11386] <... futex resumed>)        = 0
[pid 11386] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11386] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11387] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11387] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11386] <... futex resumed>)        = 0
[pid 11386] exit_group(0)               = ?
[pid 11387] +++ exited with 0 +++
[pid 11386] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11386, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11388
./strace-static-x86_64: Process 11388 attached
[pid 11388] set_robust_list(0x5555874576a0, 24) = 0
[pid 11388] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11388] setpgid(0, 0)               = 0
[pid 11388] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11388] write(3, "1000", 4)         = 4
[pid 11388] close(3)                    = 0
executing program
[pid 11388] write(1, "executing program\n", 18) = 18
[pid 11388] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11388] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11388] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11388] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11388] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11388] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11388] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11389]}, 88) = 11389
[pid 11388] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11388] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11388] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11389 attached
 <unfinished ...>
[pid 11389] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11389] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11389] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11389] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11388] <... futex resumed>)        = 0
[pid 11388] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11388] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11389] <... futex resumed>)        = 1
[pid 11389] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11389] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11388] <... futex resumed>)        = 0
[pid 11388] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11388] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11389] <... futex resumed>)        = 1
[pid 11389] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11389] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11388] <... futex resumed>)        = 0
[pid 11388] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11388] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11389] <... futex resumed>)        = 1
[pid 11389] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11389] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11388] <... futex resumed>)        = 0
[pid 11388] exit_group(0)               = ?
[pid 11389] <... futex resumed>)        = ?
[pid 11389] +++ exited with 0 +++
[pid 11388] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11388, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11390
./strace-static-x86_64: Process 11390 attached
[pid 11390] set_robust_list(0x5555874576a0, 24) = 0
[pid 11390] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11390] setpgid(0, 0)               = 0
[pid 11390] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11390] write(3, "1000", 4)         = 4
[pid 11390] close(3)                    = 0
[pid 11390] write(1, "executing program\n", 18executing program
) = 18
[pid 11390] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11390] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11390] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11390] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11390] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11390] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11390] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11391 attached
 <unfinished ...>
[pid 11391] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11390] <... clone3 resumed> => {parent_tid=[11391]}, 88) = 11391
[pid 11391] <... set_robust_list resumed>) = 0
[pid 11391] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11391] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11390] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11390] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11391] <... futex resumed>)        = 0
[pid 11391] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11391] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11391] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11390] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11390] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11391] <... futex resumed>)        = 0
[pid 11391] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11391] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11391] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11390] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11390] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11391] <... futex resumed>)        = 0
[pid 11391] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11391] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11391] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11390] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11390] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11391] <... futex resumed>)        = 0
[pid 11390] <... futex resumed>)        = 1
[pid 11390] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11391] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11391] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11391] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11390] <... futex resumed>)        = 0
[pid 11390] exit_group(0 <unfinished ...>
[pid 11391] <... futex resumed>)        = ?
[pid 11390] <... exit_group resumed>)   = ?
[pid 11391] +++ exited with 0 +++
[pid 11390] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11390, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11392
./strace-static-x86_64: Process 11392 attached
[pid 11392] set_robust_list(0x5555874576a0, 24) = 0
[pid 11392] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11392] setpgid(0, 0)               = 0
[pid 11392] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11392] write(3, "1000", 4)         = 4
[pid 11392] close(3)                    = 0
executing program
[pid 11392] write(1, "executing program\n", 18) = 18
[pid 11392] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11392] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11392] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11392] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11392] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11392] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11392] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11393]}, 88) = 11393
[pid 11392] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11392] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11392] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11393 attached
 <unfinished ...>
[pid 11393] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11393] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11393] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11393] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11392] <... futex resumed>)        = 0
[pid 11392] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11392] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11393] <... futex resumed>)        = 1
[pid 11393] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11393] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11392] <... futex resumed>)        = 0
[pid 11392] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11392] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11393] <... futex resumed>)        = 1
[pid 11393] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11393] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11392] <... futex resumed>)        = 0
[pid 11392] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11392] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11393] <... futex resumed>)        = 1
[pid 11393] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11393] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11392] <... futex resumed>)        = 0
[pid 11392] exit_group(0)               = ?
[pid 11393] <... futex resumed>)        = ?
[pid 11393] +++ exited with 0 +++
[pid 11392] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11392, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11394 attached
, child_tidptr=0x555587457690) = 11394
[pid 11394] set_robust_list(0x5555874576a0, 24) = 0
[pid 11394] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11394] setpgid(0, 0)               = 0
[pid 11394] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11394] write(3, "1000", 4)         = 4
[pid 11394] close(3)                    = 0
[pid 11394] write(1, "executing program\n", 18executing program
) = 18
[pid 11394] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11394] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11394] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11394] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11394] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11394] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11394] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11395]}, 88) = 11395
[pid 11394] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11394] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11394] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11395 attached
 <unfinished ...>
[pid 11395] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11395] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11395] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11395] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11394] <... futex resumed>)        = 0
[pid 11394] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11394] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11395] <... futex resumed>)        = 1
[pid 11395] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11395] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11394] <... futex resumed>)        = 0
[pid 11394] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11394] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11395] <... futex resumed>)        = 1
[pid 11395] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11395] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11394] <... futex resumed>)        = 0
[pid 11394] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11394] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11395] <... futex resumed>)        = 1
[pid 11395] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11395] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11394] <... futex resumed>)        = 0
[pid 11394] exit_group(0)               = ?
[pid 11395] <... futex resumed>)        = ?
[pid 11395] +++ exited with 0 +++
[pid 11394] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11394, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11396
./strace-static-x86_64: Process 11396 attached
[pid 11396] set_robust_list(0x5555874576a0, 24) = 0
[pid 11396] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11396] setpgid(0, 0)               = 0
[pid 11396] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11396] write(3, "1000", 4)         = 4
[pid 11396] close(3)                    = 0
executing program
[pid 11396] write(1, "executing program\n", 18) = 18
[pid 11396] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11396] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11396] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11396] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11396] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11396] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11396] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11397 attached
 => {parent_tid=[11397]}, 88) = 11397
[pid 11397] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11397] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11397] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11396] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11396] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11396] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11397] <... futex resumed>)        = 0
[pid 11397] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11397] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11396] <... futex resumed>)        = 0
[pid 11396] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11396] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11397] <... futex resumed>)        = 1
[pid 11397] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11397] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11396] <... futex resumed>)        = 0
[pid 11396] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11396] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11397] <... futex resumed>)        = 1
[pid 11397] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11397] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11396] <... futex resumed>)        = 0
[pid 11396] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11396] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11397] <... futex resumed>)        = 1
[pid 11397] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11397] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11396] <... futex resumed>)        = 0
[pid 11396] exit_group(0)               = ?
[pid 11397] <... futex resumed>)        = ?
[pid 11397] +++ exited with 0 +++
[pid 11396] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11396, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11398 attached
, child_tidptr=0x555587457690) = 11398
[pid 11398] set_robust_list(0x5555874576a0, 24) = 0
[pid 11398] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11398] setpgid(0, 0)               = 0
[pid 11398] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11398] write(3, "1000", 4)         = 4
[pid 11398] close(3executing program
)                    = 0
[pid 11398] write(1, "executing program\n", 18) = 18
[pid 11398] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11398] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11398] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11398] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11398] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11398] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11398] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11399]}, 88) = 11399
[pid 11398] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11398] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11398] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11399 attached
 <unfinished ...>
[pid 11399] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11399] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11399] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11399] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11398] <... futex resumed>)        = 0
[pid 11398] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11398] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11399] <... futex resumed>)        = 1
[pid 11399] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11399] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11398] <... futex resumed>)        = 0
[pid 11398] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11398] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11399] <... futex resumed>)        = 1
[pid 11399] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11399] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11398] <... futex resumed>)        = 0
[pid 11398] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11398] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11399] <... futex resumed>)        = 1
[pid 11399] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11399] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11398] <... futex resumed>)        = 0
[pid 11399] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11398] exit_group(0)               = ?
[pid 11399] <... futex resumed>)        = ?
[pid 11399] +++ exited with 0 +++
[pid 11398] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11398, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11400
./strace-static-x86_64: Process 11400 attached
[pid 11400] set_robust_list(0x5555874576a0, 24) = 0
[pid 11400] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11400] setpgid(0, 0)               = 0
[pid 11400] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11400] write(3, "1000", 4)         = 4
[pid 11400] close(3executing program
)                    = 0
[pid 11400] write(1, "executing program\n", 18) = 18
[pid 11400] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11400] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11400] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11400] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11400] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11400] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11400] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11401 attached
 <unfinished ...>
[pid 11401] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11400] <... clone3 resumed> => {parent_tid=[11401]}, 88) = 11401
[pid 11401] <... set_robust_list resumed>) = 0
[pid 11401] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11401] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11400] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11400] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11401] <... futex resumed>)        = 0
[pid 11401] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11400] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11401] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11401] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11401] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11400] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11400] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11401] <... futex resumed>)        = 0
[pid 11401] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11400] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11401] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11401] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11401] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11400] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11400] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11401] <... futex resumed>)        = 0
[pid 11401] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11401] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11401] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11400] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11400] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11401] <... futex resumed>)        = 0
[pid 11401] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11401] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11401] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11400] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11400] exit_group(0)               = ?
[pid 11401] <... futex resumed>)        = ?
[pid 11401] +++ exited with 0 +++
[pid 11400] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11400, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11402
./strace-static-x86_64: Process 11402 attached
[pid 11402] set_robust_list(0x5555874576a0, 24) = 0
[pid 11402] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11402] setpgid(0, 0)               = 0
[pid 11402] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11402] write(3, "1000", 4)         = 4
[pid 11402] close(3)                    = 0
[pid 11402] write(1, "executing program\n", 18executing program
) = 18
[pid 11402] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11402] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11402] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11402] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11402] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11402] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11402] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11403 attached
 => {parent_tid=[11403]}, 88) = 11403
[pid 11403] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11403] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11403] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11402] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11402] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11403] <... futex resumed>)        = 0
[pid 11402] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11403] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11403] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11403] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11402] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11402] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11403] <... futex resumed>)        = 0
[pid 11403] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11402] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11403] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11403] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11402] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11403] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11402] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11403] <... futex resumed>)        = 0
[pid 11403] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11403] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11402] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11403] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11402] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11402] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11403] <... futex resumed>)        = 0
[pid 11402] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11403] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11403] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11403] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11402] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11402] exit_group(0)               = ?
[pid 11403] <... futex resumed>)        = ?
[pid 11403] +++ exited with 0 +++
[pid 11402] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11402, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11404
./strace-static-x86_64: Process 11404 attached
[pid 11404] set_robust_list(0x5555874576a0, 24) = 0
[pid 11404] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11404] setpgid(0, 0)               = 0
[pid 11404] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11404] write(3, "1000", 4)         = 4
[pid 11404] close(3)                    = 0
[pid 11404] write(1, "executing program\n", 18executing program
) = 18
[pid 11404] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11404] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11404] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11404] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11404] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11404] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11404] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11405]}, 88) = 11405
./strace-static-x86_64: Process 11405 attached
[pid 11404] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11405] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11404] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11405] <... set_robust_list resumed>) = 0
[pid 11404] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11405] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11404] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11405] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11405] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11405] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11404] <... futex resumed>)        = 0
[pid 11404] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11404] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11405] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11405] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11404] <... futex resumed>)        = 0
[pid 11404] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11404] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11405] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11405] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11404] <... futex resumed>)        = 0
[pid 11404] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11404] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11405] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11405] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11404] <... futex resumed>)        = 0
[pid 11404] exit_group(0)               = ?
[pid 11405] +++ exited with 0 +++
[pid 11404] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11404, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11406
./strace-static-x86_64: Process 11406 attached
[pid 11406] set_robust_list(0x5555874576a0, 24) = 0
[pid 11406] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11406] setpgid(0, 0)               = 0
[pid 11406] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11406] write(3, "1000", 4)         = 4
[pid 11406] close(3)                    = 0
[pid 11406] write(1, "executing program\n", 18executing program
) = 18
[pid 11406] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11406] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11406] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11406] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11406] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11406] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11406] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11407]}, 88) = 11407
[pid 11406] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11406] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11406] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11407 attached
 <unfinished ...>
[pid 11407] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11407] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11407] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11407] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11406] <... futex resumed>)        = 0
[pid 11406] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11406] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11407] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11407] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11406] <... futex resumed>)        = 0
[pid 11406] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11406] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11407] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11407] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11406] <... futex resumed>)        = 0
[pid 11406] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11406] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11407] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11407] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11406] <... futex resumed>)        = 0
[pid 11406] exit_group(0)               = ?
[pid 11407] +++ exited with 0 +++
[pid 11406] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11406, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11408
./strace-static-x86_64: Process 11408 attached
[pid 11408] set_robust_list(0x5555874576a0, 24) = 0
[pid 11408] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11408] setpgid(0, 0)               = 0
[pid 11408] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11408] write(3, "1000", 4)         = 4
[pid 11408] close(3)                    = 0
[pid 11408] write(1, "executing program\n", 18executing program
) = 18
[pid 11408] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11408] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11408] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11408] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11408] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11408] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11408] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11409 attached
 => {parent_tid=[11409]}, 88) = 11409
[pid 11409] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11409] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11409] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11408] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11408] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11409] <... futex resumed>)        = 0
[pid 11409] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11408] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11409] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11409] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11408] <... futex resumed>)        = 0
[pid 11408] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11409] <... futex resumed>)        = 1
[pid 11408] <... futex resumed>)        = 0
[pid 11408] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11409] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11409] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11408] <... futex resumed>)        = 0
[pid 11408] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11408] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11409] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11409] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11408] <... futex resumed>)        = 0
[pid 11408] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11408] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11409] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11409] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11408] <... futex resumed>)        = 0
[pid 11408] exit_group(0)               = ?
[pid 11409] +++ exited with 0 +++
[pid 11408] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11408, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11410
./strace-static-x86_64: Process 11410 attached
[pid 11410] set_robust_list(0x5555874576a0, 24) = 0
[pid 11410] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11410] setpgid(0, 0)               = 0
[pid 11410] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11410] write(3, "1000", 4)         = 4
[pid 11410] close(3)                    = 0
executing program
[pid 11410] write(1, "executing program\n", 18) = 18
[pid 11410] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11410] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11410] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11410] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11410] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11410] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11410] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11411 attached
 => {parent_tid=[11411]}, 88) = 11411
[pid 11411] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11411] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11411] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11410] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11410] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11411] <... futex resumed>)        = 0
[pid 11411] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11410] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11411] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11411] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11411] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11410] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11410] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11411] <... futex resumed>)        = 0
[pid 11410] <... futex resumed>)        = 1
[pid 11411] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11410] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11411] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11411] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11410] <... futex resumed>)        = 0
[pid 11411] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11410] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11410] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11411] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11411] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11410] <... futex resumed>)        = 0
[pid 11410] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11410] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11411] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11411] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11410] <... futex resumed>)        = 0
[pid 11411] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11410] exit_group(0 <unfinished ...>
[pid 11411] <... futex resumed>)        = ?
[pid 11410] <... exit_group resumed>)   = ?
[pid 11411] +++ exited with 0 +++
[pid 11410] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11410, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11412
./strace-static-x86_64: Process 11412 attached
[pid 11412] set_robust_list(0x5555874576a0, 24) = 0
[pid 11412] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11412] setpgid(0, 0)               = 0
[pid 11412] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11412] write(3, "1000", 4)         = 4
[pid 11412] close(3executing program
)                    = 0
[pid 11412] write(1, "executing program\n", 18) = 18
[pid 11412] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11412] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11412] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11412] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11412] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11412] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11412] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11413 attached
 => {parent_tid=[11413]}, 88) = 11413
[pid 11412] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11412] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11412] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11413] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11413] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11413] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11413] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11412] <... futex resumed>)        = 0
[pid 11412] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11412] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11413] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11413] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11412] <... futex resumed>)        = 0
[pid 11412] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11412] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11413] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11413] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11412] <... futex resumed>)        = 0
[pid 11412] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11412] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11413] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11413] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11413] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11412] <... futex resumed>)        = 0
[pid 11412] exit_group(0)               = ?
[pid 11413] <... futex resumed>)        = ?
[pid 11413] +++ exited with 0 +++
[pid 11412] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11412, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11414
./strace-static-x86_64: Process 11414 attached
[pid 11414] set_robust_list(0x5555874576a0, 24) = 0
[pid 11414] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11414] setpgid(0, 0)               = 0
[pid 11414] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11414] write(3, "1000", 4)         = 4
[pid 11414] close(3)                    = 0
[pid 11414] write(1, "executing program\n", 18executing program
) = 18
[pid 11414] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11414] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11414] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11414] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11414] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11414] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11414] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11415 attached
 => {parent_tid=[11415]}, 88) = 11415
[pid 11415] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11415] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11415] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11414] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11414] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11415] <... futex resumed>)        = 0
[pid 11415] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11415] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11415] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11414] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11414] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11415] <... futex resumed>)        = 0
[pid 11415] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11415] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11415] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11414] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11414] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11415] <... futex resumed>)        = 0
[pid 11415] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11415] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11415] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11414] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11414] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11415] <... futex resumed>)        = 0
[pid 11415] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11415] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11415] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11414] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11414] exit_group(0)               = ?
[pid 11415] <... futex resumed>)        = ?
[pid 11415] +++ exited with 0 +++
[pid 11414] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11414, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11416 attached
, child_tidptr=0x555587457690) = 11416
[pid 11416] set_robust_list(0x5555874576a0, 24) = 0
[pid 11416] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11416] setpgid(0, 0)               = 0
[pid 11416] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11416] write(3, "1000", 4)         = 4
[pid 11416] close(3)                    = 0
[pid 11416] write(1, "executing program\n", 18executing program
) = 18
[pid 11416] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11416] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11416] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11416] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11416] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11416] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11416] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11417 attached
 => {parent_tid=[11417]}, 88) = 11417
[pid 11417] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11417] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11417] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11416] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11416] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11417] <... futex resumed>)        = 0
[pid 11417] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11416] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11417] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11417] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11416] <... futex resumed>)        = 0
[pid 11416] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11416] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11417] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11417] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11416] <... futex resumed>)        = 0
[pid 11416] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11416] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11417] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11417] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11416] <... futex resumed>)        = 0
[pid 11416] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11416] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11417] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11417] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11416] <... futex resumed>)        = 0
[pid 11416] exit_group(0)               = ?
[pid 11417] +++ exited with 0 +++
[pid 11416] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11416, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11418
./strace-static-x86_64: Process 11418 attached
[pid 11418] set_robust_list(0x5555874576a0, 24) = 0
[pid 11418] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11418] setpgid(0, 0)               = 0
[pid 11418] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11418] write(3, "1000", 4)         = 4
[pid 11418] close(3)                    = 0
[pid 11418] write(1, "executing program\n", 18executing program
) = 18
[pid 11418] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11418] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11418] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11418] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11418] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11418] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11418] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11419 attached
 <unfinished ...>
[pid 11419] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11419] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11419] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11418] <... clone3 resumed> => {parent_tid=[11419]}, 88) = 11419
[pid 11418] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11418] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11419] <... futex resumed>)        = 0
[pid 11418] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11419] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11419] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11418] <... futex resumed>)        = 0
[pid 11418] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11418] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11419] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11419] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11418] <... futex resumed>)        = 0
[pid 11418] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11418] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11419] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11419] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11418] <... futex resumed>)        = 0
[pid 11418] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11418] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11419] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11419] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11418] <... futex resumed>)        = 0
[pid 11418] exit_group(0)               = ?
[pid 11419] +++ exited with 0 +++
[pid 11418] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11418, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11420
./strace-static-x86_64: Process 11420 attached
[pid 11420] set_robust_list(0x5555874576a0, 24) = 0
[pid 11420] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11420] setpgid(0, 0)               = 0
[pid 11420] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11420] write(3, "1000", 4)         = 4
[pid 11420] close(3)                    = 0
[pid 11420] write(1, "executing program\n", 18executing program
) = 18
[pid 11420] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11420] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11420] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11420] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11420] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11420] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11420] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11421 attached
 <unfinished ...>
[pid 11421] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11421] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11421] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11420] <... clone3 resumed> => {parent_tid=[11421]}, 88) = 11421
[pid 11420] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11420] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11421] <... futex resumed>)        = 0
[pid 11421] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11421] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11421] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11420] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11420] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11421] <... futex resumed>)        = 0
[pid 11421] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11421] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11421] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11420] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11420] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11421] <... futex resumed>)        = 0
[pid 11421] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11421] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11421] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11420] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11420] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11421] <... futex resumed>)        = 0
[pid 11421] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11421] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11420] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11421] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11420] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11420] exit_group(0)               = ?
[pid 11421] <... futex resumed>)        = ?
[pid 11421] +++ exited with 0 +++
[pid 11420] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11420, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11422
./strace-static-x86_64: Process 11422 attached
[pid 11422] set_robust_list(0x5555874576a0, 24) = 0
[pid 11422] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11422] setpgid(0, 0)               = 0
[pid 11422] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11422] write(3, "1000", 4)         = 4
[pid 11422] close(3)                    = 0
executing program
[pid 11422] write(1, "executing program\n", 18) = 18
[pid 11422] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11422] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11422] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11422] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11422] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11422] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11422] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11423 attached
 => {parent_tid=[11423]}, 88) = 11423
[pid 11423] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11422] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11422] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11422] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11423] <... set_robust_list resumed>) = 0
[pid 11423] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11423] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11423] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11422] <... futex resumed>)        = 0
[pid 11422] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11422] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11423] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11423] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11422] <... futex resumed>)        = 0
[pid 11422] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11422] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11423] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11423] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11422] <... futex resumed>)        = 0
[pid 11422] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11422] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11423] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11423] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11422] <... futex resumed>)        = 0
[pid 11422] exit_group(0)               = ?
[pid 11423] +++ exited with 0 +++
[pid 11422] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11422, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11424 attached
 <unfinished ...>
[pid 11424] set_robust_list(0x5555874576a0, 24) = 0
[pid 11424] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 11424
[pid 11424] <... prctl resumed>)        = 0
[pid 11424] setpgid(0, 0)               = 0
[pid 11424] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11424] write(3, "1000", 4)         = 4
[pid 11424] close(3)                    = 0
[pid 11424] write(1, "executing program\n", 18executing program
) = 18
[pid 11424] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11424] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11424] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11424] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11424] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11424] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11424] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11425 attached
 => {parent_tid=[11425]}, 88) = 11425
[pid 11425] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11425] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11425] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11424] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11424] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11425] <... futex resumed>)        = 0
[pid 11425] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11425] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11425] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11424] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11424] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11425] <... futex resumed>)        = 0
[pid 11425] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11425] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11425] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11424] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11424] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11425] <... futex resumed>)        = 0
[pid 11425] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11425] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11425] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11424] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11424] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11425] <... futex resumed>)        = 0
[pid 11425] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11425] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11425] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11424] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11424] exit_group(0)               = ?
[pid 11425] <... futex resumed>)        = ?
[pid 11425] +++ exited with 0 +++
[pid 11424] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11424, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11426 attached
 <unfinished ...>
[pid 11426] set_robust_list(0x5555874576a0, 24) = 0
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 11426
[pid 11426] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11426] setpgid(0, 0)               = 0
[pid 11426] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11426] write(3, "1000", 4)         = 4
[pid 11426] close(3executing program
)                    = 0
[pid 11426] write(1, "executing program\n", 18) = 18
[pid 11426] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11426] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11426] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11426] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11426] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11426] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11426] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11427 attached
 => {parent_tid=[11427]}, 88) = 11427
[pid 11426] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11426] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11426] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11427] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11427] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11427] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11427] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11426] <... futex resumed>)        = 0
[pid 11426] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11426] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11427] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11427] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11426] <... futex resumed>)        = 0
[pid 11426] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11426] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11427] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11427] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11426] <... futex resumed>)        = 0
[pid 11426] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11426] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11427] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11427] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11426] <... futex resumed>)        = 0
[pid 11426] exit_group(0 <unfinished ...>
[pid 11427] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11426] <... exit_group resumed>)   = ?
[pid 11427] <... futex resumed>)        = ?
[pid 11427] +++ exited with 0 +++
[pid 11426] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11426, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11428 attached
 <unfinished ...>
[pid 11428] set_robust_list(0x5555874576a0, 24) = 0
[pid 11428] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 11428
[pid 11428] <... prctl resumed>)        = 0
[pid 11428] setpgid(0, 0)               = 0
[pid 11428] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11428] write(3, "1000", 4)         = 4
[pid 11428] close(3)                    = 0
[pid 11428] write(1, "executing program\n", 18executing program
) = 18
[pid 11428] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11428] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11428] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11428] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11428] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11428] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11428] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11429 attached
 => {parent_tid=[11429]}, 88) = 11429
[pid 11429] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11428] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11429] <... set_robust_list resumed>) = 0
[pid 11428] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11429] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11428] <... futex resumed>)        = 0
[pid 11429] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11428] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11429] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11429] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11428] <... futex resumed>)        = 0
[pid 11429] <... futex resumed>)        = 1
[pid 11428] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11429] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11428] <... futex resumed>)        = 0
[pid 11428] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11429] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11429] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11428] <... futex resumed>)        = 0
[pid 11428] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11428] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11429] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11429] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11428] <... futex resumed>)        = 0
[pid 11428] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11429] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11428] <... futex resumed>)        = 0
[pid 11428] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11429] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11429] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11428] <... futex resumed>)        = 0
[pid 11428] exit_group(0)               = ?
[pid 11429] +++ exited with 0 +++
[pid 11428] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11428, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11430
./strace-static-x86_64: Process 11430 attached
[pid 11430] set_robust_list(0x5555874576a0, 24) = 0
[pid 11430] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11430] setpgid(0, 0)               = 0
[pid 11430] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11430] write(3, "1000", 4)         = 4
[pid 11430] close(3)                    = 0
[pid 11430] write(1, "executing program\n", 18executing program
) = 18
[pid 11430] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11430] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11430] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11430] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11430] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11430] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11430] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11431 attached
 => {parent_tid=[11431]}, 88) = 11431
[pid 11431] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11431] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11431] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11430] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11430] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11431] <... futex resumed>)        = 0
[pid 11431] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11431] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11431] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11430] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11430] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11431] <... futex resumed>)        = 0
[pid 11431] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11431] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11431] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11430] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11430] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11431] <... futex resumed>)        = 0
[pid 11431] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11431] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11431] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11430] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11430] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11431] <... futex resumed>)        = 0
[pid 11430] <... futex resumed>)        = 1
[pid 11431] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11431] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11431] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11430] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11430] exit_group(0)               = ?
[pid 11431] <... futex resumed>)        = ?
[pid 11431] +++ exited with 0 +++
[pid 11430] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11430, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11432 attached
, child_tidptr=0x555587457690) = 11432
[pid 11432] set_robust_list(0x5555874576a0, 24) = 0
[pid 11432] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11432] setpgid(0, 0)               = 0
[pid 11432] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11432] write(3, "1000", 4)         = 4
[pid 11432] close(3)                    = 0
[pid 11432] write(1, "executing program\n", 18executing program
) = 18
[pid 11432] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11432] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11432] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11432] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11432] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11432] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11432] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11433 attached
 => {parent_tid=[11433]}, 88) = 11433
[pid 11433] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11432] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11433] <... set_robust_list resumed>) = 0
[pid 11432] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11433] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11432] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11433] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11432] <... futex resumed>)        = 0
[pid 11432] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11433] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11433] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11432] <... futex resumed>)        = 0
[pid 11432] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11432] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11433] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11433] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11432] <... futex resumed>)        = 0
[pid 11432] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11432] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11433] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11433] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11432] <... futex resumed>)        = 0
[pid 11432] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11432] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11433] <... futex resumed>)        = 1
[pid 11433] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11433] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11432] <... futex resumed>)        = 0
[pid 11432] exit_group(0)               = ?
[pid 11433] +++ exited with 0 +++
[pid 11432] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11432, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11434 attached
 <unfinished ...>
[pid 11434] set_robust_list(0x5555874576a0, 24) = 0
[pid 11434] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11434] setpgid(0, 0 <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 11434
[pid 11434] <... setpgid resumed>)      = 0
[pid 11434] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11434] write(3, "1000", 4)         = 4
[pid 11434] close(3)                    = 0
[pid 11434] write(1, "executing program\n", 18executing program
) = 18
[pid 11434] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11434] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11434] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11434] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11434] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11434] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11434] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11435]}, 88) = 11435
[pid 11434] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11434] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11434] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11435 attached
 <unfinished ...>
[pid 11435] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11435] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11435] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11435] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11434] <... futex resumed>)        = 0
[pid 11434] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11434] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11435] <... futex resumed>)        = 1
[pid 11435] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11435] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11434] <... futex resumed>)        = 0
[pid 11434] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11434] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11435] <... futex resumed>)        = 1
[pid 11435] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11435] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11434] <... futex resumed>)        = 0
[pid 11434] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11434] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11435] <... futex resumed>)        = 1
[pid 11435] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11435] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11434] <... futex resumed>)        = 0
[pid 11434] exit_group(0)               = ?
[pid 11435] <... futex resumed>)        = ?
[pid 11435] +++ exited with 0 +++
[pid 11434] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11434, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11436 attached
, child_tidptr=0x555587457690) = 11436
[pid 11436] set_robust_list(0x5555874576a0, 24) = 0
[pid 11436] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11436] setpgid(0, 0)               = 0
[pid 11436] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11436] write(3, "1000", 4)         = 4
[pid 11436] close(3)                    = 0
executing program
[pid 11436] write(1, "executing program\n", 18) = 18
[pid 11436] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11436] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11436] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11436] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11436] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11436] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11436] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11437]}, 88) = 11437
./strace-static-x86_64: Process 11437 attached
[pid 11436] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11436] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11436] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11437] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11437] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11437] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11437] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11436] <... futex resumed>)        = 0
[pid 11436] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11436] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11437] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11437] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11436] <... futex resumed>)        = 0
[pid 11436] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11436] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11437] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11437] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11436] <... futex resumed>)        = 0
[pid 11436] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11436] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11437] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11437] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11436] <... futex resumed>)        = 0
[pid 11436] exit_group(0)               = ?
[pid 11437] +++ exited with 0 +++
[pid 11436] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11436, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11438 attached
 <unfinished ...>
[pid 11438] set_robust_list(0x5555874576a0, 24) = 0
[pid 11438] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11438] setpgid(0, 0)               = 0
[pid 11438] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 11438
[pid 11438] <... openat resumed>)       = 3
[pid 11438] write(3, "1000", 4)         = 4
[pid 11438] close(3executing program
)                    = 0
[pid 11438] write(1, "executing program\n", 18) = 18
[pid 11438] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11438] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11438] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11438] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11438] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11438] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11438] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11439 attached
 => {parent_tid=[11439]}, 88) = 11439
[pid 11438] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11438] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11438] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11439] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11439] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11439] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11439] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11438] <... futex resumed>)        = 0
[pid 11438] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11438] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11439] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11439] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11438] <... futex resumed>)        = 0
[pid 11438] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11438] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11439] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11439] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11438] <... futex resumed>)        = 0
[pid 11438] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11438] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11439] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11439] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11438] <... futex resumed>)        = 0
[pid 11438] exit_group(0)               = ?
[pid 11439] +++ exited with 0 +++
[pid 11438] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11438, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11440 attached
 <unfinished ...>
[pid 11440] set_robust_list(0x5555874576a0, 24) = 0
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 11440
[pid 11440] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11440] setpgid(0, 0)               = 0
[pid 11440] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11440] write(3, "1000", 4)         = 4
[pid 11440] close(3)                    = 0
[pid 11440] write(1, "executing program\n", 18executing program
) = 18
[pid 11440] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11440] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11440] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11440] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11440] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11440] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11440] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11441 attached
 => {parent_tid=[11441]}, 88) = 11441
[pid 11440] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11440] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11440] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11441] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11441] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11441] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11441] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11440] <... futex resumed>)        = 0
[pid 11440] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11440] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11441] <... futex resumed>)        = 1
[pid 11441] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11441] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11441] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11440] <... futex resumed>)        = 0
[pid 11440] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11440] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11441] <... futex resumed>)        = 0
[pid 11441] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11441] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11440] <... futex resumed>)        = 0
[pid 11440] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11440] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11441] <... futex resumed>)        = 1
[pid 11441] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11441] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11440] <... futex resumed>)        = 0
[pid 11440] exit_group(0)               = ?
[pid 11441] <... futex resumed>)        = ?
[pid 11441] +++ exited with 0 +++
[pid 11440] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11440, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11442
./strace-static-x86_64: Process 11442 attached
[pid 11442] set_robust_list(0x5555874576a0, 24) = 0
[pid 11442] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11442] setpgid(0, 0)               = 0
[pid 11442] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11442] write(3, "1000", 4)         = 4
[pid 11442] close(3)                    = 0
[pid 11442] write(1, "executing program\n", 18executing program
) = 18
[pid 11442] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11442] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11442] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11442] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11442] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11442] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11442] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11443 attached
 <unfinished ...>
[pid 11443] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11442] <... clone3 resumed> => {parent_tid=[11443]}, 88) = 11443
[pid 11443] <... set_robust_list resumed>) = 0
[pid 11442] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11443] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11442] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11443] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11442] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11443] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11442] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11443] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11443] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11442] <... futex resumed>)        = 0
[pid 11442] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11442] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11443] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11443] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11442] <... futex resumed>)        = 0
[pid 11442] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11442] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11443] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11443] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11442] <... futex resumed>)        = 0
[pid 11442] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11442] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11443] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11443] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11442] <... futex resumed>)        = 0
[pid 11442] exit_group(0)               = ?
[pid 11443] +++ exited with 0 +++
[pid 11442] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11442, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11444
./strace-static-x86_64: Process 11444 attached
[pid 11444] set_robust_list(0x5555874576a0, 24) = 0
[pid 11444] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11444] setpgid(0, 0)               = 0
[pid 11444] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11444] write(3, "1000", 4)         = 4
[pid 11444] close(3)                    = 0
[pid 11444] write(1, "executing program\n", 18executing program
) = 18
[pid 11444] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11444] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11444] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11444] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11444] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11444] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11444] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11445 attached
 => {parent_tid=[11445]}, 88) = 11445
[pid 11445] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11444] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11445] <... set_robust_list resumed>) = 0
[pid 11444] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11445] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11444] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11445] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11444] <... futex resumed>)        = 0
[pid 11444] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11445] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11445] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11444] <... futex resumed>)        = 0
[pid 11444] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11444] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11445] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11445] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11445] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11444] <... futex resumed>)        = 0
[pid 11444] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11445] <... futex resumed>)        = 0
[pid 11444] <... futex resumed>)        = 1
[pid 11445] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11444] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11445] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11445] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11444] <... futex resumed>)        = 0
[pid 11444] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11444] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11445] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11445] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11444] <... futex resumed>)        = 0
[pid 11445] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11444] exit_group(0)               = ?
[pid 11445] <... futex resumed>)        = ?
[pid 11445] +++ exited with 0 +++
[pid 11444] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11444, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11446 attached
, child_tidptr=0x555587457690) = 11446
[pid 11446] set_robust_list(0x5555874576a0, 24) = 0
[pid 11446] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11446] setpgid(0, 0)               = 0
[pid 11446] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11446] write(3, "1000", 4)         = 4
[pid 11446] close(3)                    = 0
executing program
[pid 11446] write(1, "executing program\n", 18) = 18
[pid 11446] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11446] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11446] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11446] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11446] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11446] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11446] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11447 attached
 => {parent_tid=[11447]}, 88) = 11447
[pid 11446] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11446] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11446] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11447] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11447] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11447] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11447] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11446] <... futex resumed>)        = 0
[pid 11446] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11446] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11447] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11447] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11446] <... futex resumed>)        = 0
[pid 11446] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11446] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11447] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11447] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11446] <... futex resumed>)        = 0
[pid 11446] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11446] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11447] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11447] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11446] <... futex resumed>)        = 0
[pid 11446] exit_group(0)               = ?
[pid 11447] +++ exited with 0 +++
[pid 11446] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11446, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11448 attached
 <unfinished ...>
[pid 11448] set_robust_list(0x5555874576a0, 24) = 0
[pid 11448] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11448] setpgid(0, 0)               = 0
[pid 11448] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 11448
[pid 11448] <... openat resumed>)       = 3
[pid 11448] write(3, "1000", 4)         = 4
[pid 11448] close(3)                    = 0
executing program
[pid 11448] write(1, "executing program\n", 18) = 18
[pid 11448] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11448] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11448] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11448] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11448] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11448] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11448] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11449]}, 88) = 11449
[pid 11448] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11448] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11448] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11449 attached
 <unfinished ...>
[pid 11449] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11449] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11449] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11449] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11448] <... futex resumed>)        = 0
[pid 11448] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11448] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11449] <... futex resumed>)        = 1
[pid 11449] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11449] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11448] <... futex resumed>)        = 0
[pid 11448] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11448] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11449] <... futex resumed>)        = 1
[pid 11449] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11449] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11448] <... futex resumed>)        = 0
[pid 11448] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11448] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11449] <... futex resumed>)        = 1
[pid 11449] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11449] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11448] <... futex resumed>)        = 0
[pid 11448] exit_group(0)               = ?
[pid 11449] <... futex resumed>)        = ?
[pid 11449] +++ exited with 0 +++
[pid 11448] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11448, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11450
./strace-static-x86_64: Process 11450 attached
[pid 11450] set_robust_list(0x5555874576a0, 24) = 0
[pid 11450] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11450] setpgid(0, 0)               = 0
[pid 11450] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11450] write(3, "1000", 4)         = 4
[pid 11450] close(3)                    = 0
executing program
[pid 11450] write(1, "executing program\n", 18) = 18
[pid 11450] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11450] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11450] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11450] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11450] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11450] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11450] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11451 attached
 => {parent_tid=[11451]}, 88) = 11451
[pid 11450] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11450] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11450] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11451] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11451] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11451] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11451] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11450] <... futex resumed>)        = 0
[pid 11450] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11450] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11451] <... futex resumed>)        = 1
[pid 11451] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11451] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11450] <... futex resumed>)        = 0
[pid 11450] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11450] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11451] <... futex resumed>)        = 1
[pid 11451] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11451] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11450] <... futex resumed>)        = 0
[pid 11450] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11450] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11451] <... futex resumed>)        = 1
[pid 11451] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11451] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11450] <... futex resumed>)        = 0
[pid 11450] exit_group(0)               = ?
[pid 11451] <... futex resumed>)        = ?
[pid 11451] +++ exited with 0 +++
[pid 11450] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11450, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11452 attached
, child_tidptr=0x555587457690) = 11452
[pid 11452] set_robust_list(0x5555874576a0, 24) = 0
[pid 11452] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11452] setpgid(0, 0)               = 0
[pid 11452] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11452] write(3, "1000", 4)         = 4
[pid 11452] close(3)                    = 0
[pid 11452] write(1, "executing program\n", 18executing program
) = 18
[pid 11452] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11452] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11452] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11452] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11452] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11452] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11452] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11453 attached
 => {parent_tid=[11453]}, 88) = 11453
[pid 11453] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11453] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11453] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11452] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11452] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11453] <... futex resumed>)        = 0
[pid 11453] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11452] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11453] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11453] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11453] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11452] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11452] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11453] <... futex resumed>)        = 0
[pid 11453] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11452] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11453] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11453] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11452] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11452] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11453] <... futex resumed>)        = 0
[pid 11453] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11453] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11453] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11452] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11452] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11453] <... futex resumed>)        = 0
[pid 11453] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11452] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11453] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11453] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11453] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11452] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11452] exit_group(0)               = ?
[pid 11453] <... futex resumed>)        = ?
[pid 11453] +++ exited with 0 +++
[pid 11452] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11452, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11454
./strace-static-x86_64: Process 11454 attached
[pid 11454] set_robust_list(0x5555874576a0, 24) = 0
[pid 11454] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11454] setpgid(0, 0)               = 0
[pid 11454] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11454] write(3, "1000", 4)         = 4
[pid 11454] close(3)                    = 0
[pid 11454] write(1, "executing program\n", 18executing program
) = 18
[pid 11454] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11454] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11454] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11454] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11454] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11454] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11454] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11455 attached
 => {parent_tid=[11455]}, 88) = 11455
[pid 11455] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11455] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11455] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11454] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11454] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11455] <... futex resumed>)        = 0
[pid 11455] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11455] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11455] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11454] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11454] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11455] <... futex resumed>)        = 0
[pid 11455] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11455] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11455] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11454] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11454] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11455] <... futex resumed>)        = 0
[pid 11455] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11454] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11455] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11454] <... futex resumed>)        = 0
[pid 11454] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11455] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11454] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11455] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11455] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11454] <... futex resumed>)        = 0
[pid 11454] exit_group(0)               = ?
[pid 11455] +++ exited with 0 +++
[pid 11454] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11454, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11456
./strace-static-x86_64: Process 11456 attached
[pid 11456] set_robust_list(0x5555874576a0, 24) = 0
[pid 11456] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11456] setpgid(0, 0)               = 0
[pid 11456] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11456] write(3, "1000", 4)         = 4
[pid 11456] close(3)                    = 0
[pid 11456] write(1, "executing program\n", 18executing program
) = 18
[pid 11456] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11456] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11456] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11456] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11456] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11456] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11456] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11457 attached
 => {parent_tid=[11457]}, 88) = 11457
[pid 11456] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11456] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11456] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11457] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11457] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11457] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11457] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11456] <... futex resumed>)        = 0
[pid 11456] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11456] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11457] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11457] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11456] <... futex resumed>)        = 0
[pid 11456] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11456] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11457] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11457] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11456] <... futex resumed>)        = 0
[pid 11456] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11456] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11457] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11457] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11456] <... futex resumed>)        = 0
[pid 11456] exit_group(0)               = ?
[pid 11457] +++ exited with 0 +++
[pid 11456] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11456, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11458 attached
 <unfinished ...>
[pid 11458] set_robust_list(0x5555874576a0, 24) = 0
[pid 11458] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 11458
[pid 11458] <... prctl resumed>)        = 0
[pid 11458] setpgid(0, 0)               = 0
[pid 11458] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11458] write(3, "1000", 4)         = 4
[pid 11458] close(3)                    = 0
[pid 11458] write(1, "executing program\n", 18) = 18
executing program
[pid 11458] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11458] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11458] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11458] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11458] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11458] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11458] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11459 attached
 => {parent_tid=[11459]}, 88) = 11459
[pid 11459] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11459] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11459] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11458] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11458] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11459] <... futex resumed>)        = 0
[pid 11459] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11458] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11459] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11459] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11459] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11458] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11458] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11459] <... futex resumed>)        = 0
[pid 11459] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11459] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11458] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11459] <... futex resumed>)        = 0
[pid 11459] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11458] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11458] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11459] <... futex resumed>)        = 0
[pid 11459] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11459] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11459] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11458] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11458] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11459] <... futex resumed>)        = 0
[pid 11458] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11459] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11459] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11459] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11458] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11458] exit_group(0)               = ?
[pid 11459] <... futex resumed>)        = ?
[pid 11459] +++ exited with 0 +++
[pid 11458] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11458, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11460
./strace-static-x86_64: Process 11460 attached
[pid 11460] set_robust_list(0x5555874576a0, 24) = 0
[pid 11460] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11460] setpgid(0, 0)               = 0
[pid 11460] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11460] write(3, "1000", 4)         = 4
[pid 11460] close(3)                    = 0
[pid 11460] write(1, "executing program\n", 18executing program
) = 18
[pid 11460] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11460] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11460] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11460] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11460] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11460] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11460] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11461 attached
 => {parent_tid=[11461]}, 88) = 11461
[pid 11460] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11460] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11460] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11461] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11461] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11461] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11461] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11460] <... futex resumed>)        = 0
[pid 11460] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11460] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11461] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11461] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11460] <... futex resumed>)        = 0
[pid 11460] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11460] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11461] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11461] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11460] <... futex resumed>)        = 0
[pid 11460] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11460] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11461] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11461] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11460] <... futex resumed>)        = 0
[pid 11460] exit_group(0)               = ?
[pid 11461] +++ exited with 0 +++
[pid 11460] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11460, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11462 attached
, child_tidptr=0x555587457690) = 11462
[pid 11462] set_robust_list(0x5555874576a0, 24) = 0
[pid 11462] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11462] setpgid(0, 0)               = 0
[pid 11462] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11462] write(3, "1000", 4)         = 4
[pid 11462] close(3)                    = 0
executing program
[pid 11462] write(1, "executing program\n", 18) = 18
[pid 11462] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11462] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11462] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11462] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11462] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11462] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11462] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11463]}, 88) = 11463
./strace-static-x86_64: Process 11463 attached
[pid 11462] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11462] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11462] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11463] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11463] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11463] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11463] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11462] <... futex resumed>)        = 0
[pid 11462] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11462] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11463] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11463] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11462] <... futex resumed>)        = 0
[pid 11462] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11462] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11463] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11463] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11462] <... futex resumed>)        = 0
[pid 11462] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11462] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11463] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11463] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11462] <... futex resumed>)        = 0
[pid 11462] exit_group(0)               = ?
[pid 11463] +++ exited with 0 +++
[pid 11462] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11462, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11464
./strace-static-x86_64: Process 11464 attached
[pid 11464] set_robust_list(0x5555874576a0, 24) = 0
[pid 11464] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11464] setpgid(0, 0)               = 0
[pid 11464] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11464] write(3, "1000", 4)         = 4
[pid 11464] close(3)                    = 0
executing program
[pid 11464] write(1, "executing program\n", 18) = 18
[pid 11464] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11464] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11464] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11464] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11464] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11464] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11464] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11465]}, 88) = 11465
./strace-static-x86_64: Process 11465 attached
[pid 11464] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11464] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11464] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11465] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11465] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11465] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11465] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11464] <... futex resumed>)        = 0
[pid 11464] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11464] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11465] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11465] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11464] <... futex resumed>)        = 0
[pid 11464] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11464] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11465] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11465] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11464] <... futex resumed>)        = 0
[pid 11464] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11464] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11465] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11465] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11464] <... futex resumed>)        = 0
[pid 11464] exit_group(0)               = ?
[pid 11465] +++ exited with 0 +++
[pid 11464] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11464, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11466 attached
 <unfinished ...>
[pid 11466] set_robust_list(0x5555874576a0, 24) = 0
[pid 11466] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 11466
[pid 11466] <... prctl resumed>)        = 0
[pid 11466] setpgid(0, 0)               = 0
[pid 11466] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11466] write(3, "1000", 4)         = 4
[pid 11466] close(3)                    = 0
executing program
[pid 11466] write(1, "executing program\n", 18) = 18
[pid 11466] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11466] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11466] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11466] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11466] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11466] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11466] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11467 attached
 => {parent_tid=[11467]}, 88) = 11467
[pid 11467] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11466] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11467] <... set_robust_list resumed>) = 0
[pid 11467] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11467] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11466] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11466] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11467] <... futex resumed>)        = 0
[pid 11467] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11466] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11467] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11467] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11466] <... futex resumed>)        = 0
[pid 11466] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11466] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11467] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11467] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11466] <... futex resumed>)        = 0
[pid 11466] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11466] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11467] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11467] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11466] <... futex resumed>)        = 0
[pid 11466] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11466] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11467] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11467] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11466] <... futex resumed>)        = 0
[pid 11466] exit_group(0)               = ?
[pid 11467] +++ exited with 0 +++
[pid 11466] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11466, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11468
./strace-static-x86_64: Process 11468 attached
[pid 11468] set_robust_list(0x5555874576a0, 24) = 0
[pid 11468] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11468] setpgid(0, 0)               = 0
[pid 11468] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11468] write(3, "1000", 4)         = 4
[pid 11468] close(3)                    = 0
[pid 11468] write(1, "executing program\n", 18executing program
) = 18
[pid 11468] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11468] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11468] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11468] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11468] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11468] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11468] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11469 attached
 => {parent_tid=[11469]}, 88) = 11469
[pid 11469] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11469] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11469] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11468] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11468] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11469] <... futex resumed>)        = 0
[pid 11469] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11469] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11469] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11468] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11468] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11469] <... futex resumed>)        = 0
[pid 11469] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11469] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11469] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11468] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11468] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11469] <... futex resumed>)        = 0
[pid 11469] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11469] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11469] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11468] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11468] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11469] <... futex resumed>)        = 0
[pid 11468] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11469] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11469] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11468] <... futex resumed>)        = 0
[pid 11469] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11468] exit_group(0 <unfinished ...>
[pid 11469] <... futex resumed>)        = ?
[pid 11469] +++ exited with 0 +++
[pid 11468] <... exit_group resumed>)   = ?
[pid 11468] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11468, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11470
./strace-static-x86_64: Process 11470 attached
[pid 11470] set_robust_list(0x5555874576a0, 24) = 0
[pid 11470] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11470] setpgid(0, 0)               = 0
[pid 11470] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11470] write(3, "1000", 4)         = 4
[pid 11470] close(3)                    = 0
executing program
[pid 11470] write(1, "executing program\n", 18) = 18
[pid 11470] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11470] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11470] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11470] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11470] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11470] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11470] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11471 attached
 <unfinished ...>
[pid 11471] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11470] <... clone3 resumed> => {parent_tid=[11471]}, 88) = 11471
[pid 11471] <... set_robust_list resumed>) = 0
[pid 11470] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11471] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11470] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11471] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11470] <... futex resumed>)        = 0
[pid 11470] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11471] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11471] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11470] <... futex resumed>)        = 0
[pid 11470] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11470] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11471] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11471] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11470] <... futex resumed>)        = 0
[pid 11470] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11470] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11471] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11471] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11470] <... futex resumed>)        = 0
[pid 11470] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11470] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11471] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11471] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11470] <... futex resumed>)        = 0
[pid 11470] exit_group(0)               = ?
[pid 11471] <... futex resumed>)        = ?
[pid 11471] +++ exited with 0 +++
[pid 11470] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11470, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11472 attached
 <unfinished ...>
[pid 11472] set_robust_list(0x5555874576a0, 24) = 0
[pid 11472] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 11472
[pid 11472] <... prctl resumed>)        = 0
[pid 11472] setpgid(0, 0)               = 0
[pid 11472] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11472] write(3, "1000", 4)         = 4
[pid 11472] close(3)                    = 0
executing program
[pid 11472] write(1, "executing program\n", 18) = 18
[pid 11472] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11472] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11472] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11472] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11472] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11472] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11472] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11473]}, 88) = 11473
[pid 11472] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11472] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11472] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11473 attached
 <unfinished ...>
[pid 11473] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11473] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11473] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11473] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11472] <... futex resumed>)        = 0
[pid 11472] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11472] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11473] <... futex resumed>)        = 1
[pid 11473] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11473] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11472] <... futex resumed>)        = 0
[pid 11472] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11472] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11473] <... futex resumed>)        = 1
[pid 11473] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11473] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11472] <... futex resumed>)        = 0
[pid 11472] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11472] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11473] <... futex resumed>)        = 1
[pid 11473] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11473] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11472] <... futex resumed>)        = 0
[pid 11472] exit_group(0)               = ?
[pid 11473] <... futex resumed>)        = ?
[pid 11473] +++ exited with 0 +++
[pid 11472] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11472, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11474
./strace-static-x86_64: Process 11474 attached
[pid 11474] set_robust_list(0x5555874576a0, 24) = 0
[pid 11474] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11474] setpgid(0, 0)               = 0
[pid 11474] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11474] write(3, "1000", 4)         = 4
[pid 11474] close(3)                    = 0
[pid 11474] write(1, "executing program\n", 18executing program
) = 18
[pid 11474] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11474] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11474] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11474] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11474] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11474] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11474] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11475 attached
 => {parent_tid=[11475]}, 88) = 11475
[pid 11475] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11475] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11475] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11474] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11474] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11475] <... futex resumed>)        = 0
[pid 11475] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11475] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11475] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11474] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11474] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11475] <... futex resumed>)        = 0
[pid 11475] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11475] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11475] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11474] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11474] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11475] <... futex resumed>)        = 0
[pid 11475] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11475] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11475] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11474] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11474] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11475] <... futex resumed>)        = 0
[pid 11475] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11474] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11475] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11475] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11475] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11474] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11474] exit_group(0)               = ?
[pid 11475] <... futex resumed>)        = ?
[pid 11475] +++ exited with 0 +++
[pid 11474] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11474, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11476
./strace-static-x86_64: Process 11476 attached
[pid 11476] set_robust_list(0x5555874576a0, 24) = 0
[pid 11476] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11476] setpgid(0, 0)               = 0
[pid 11476] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11476] write(3, "1000", 4)         = 4
[pid 11476] close(3)                    = 0
[pid 11476] write(1, "executing program\n", 18executing program
) = 18
[pid 11476] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11476] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11476] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11476] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11476] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11476] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11476] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11477]}, 88) = 11477
[pid 11476] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 11477 attached
 <unfinished ...>
[pid 11477] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11477] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11477] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11476] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11476] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11477] <... futex resumed>)        = 0
[pid 11477] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11476] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11477] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11477] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11476] <... futex resumed>)        = 0
[pid 11476] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11476] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11477] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11477] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11476] <... futex resumed>)        = 0
[pid 11476] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11476] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11477] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11477] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11476] <... futex resumed>)        = 0
[pid 11476] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11476] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11477] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11477] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11476] <... futex resumed>)        = 0
[pid 11476] exit_group(0)               = ?
[pid 11477] +++ exited with 0 +++
[pid 11476] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11476, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11478
./strace-static-x86_64: Process 11478 attached
[pid 11478] set_robust_list(0x5555874576a0, 24) = 0
[pid 11478] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11478] setpgid(0, 0)               = 0
[pid 11478] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11478] write(3, "1000", 4)         = 4
[pid 11478] close(3)                    = 0
[pid 11478] write(1, "executing program\n", 18executing program
) = 18
[pid 11478] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11478] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11478] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11478] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11478] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11478] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11478] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11479 attached
 <unfinished ...>
[pid 11479] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11478] <... clone3 resumed> => {parent_tid=[11479]}, 88) = 11479
[pid 11479] <... set_robust_list resumed>) = 0
[pid 11478] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11479] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11478] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11479] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11478] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11479] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11478] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11479] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11479] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11478] <... futex resumed>)        = 0
[pid 11479] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11478] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11479] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11478] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11479] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11478] <... futex resumed>)        = 0
[pid 11479] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11478] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11479] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11478] <... futex resumed>)        = 0
[pid 11478] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11479] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11478] <... futex resumed>)        = 0
[pid 11479] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11478] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11479] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11478] <... futex resumed>)        = 0
[pid 11479] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11478] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11479] <... futex resumed>)        = 0
[pid 11478] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11479] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11478] exit_group(0)               = ?
[pid 11479] <... futex resumed>)        = ?
[pid 11479] +++ exited with 0 +++
[pid 11478] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11478, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11480
./strace-static-x86_64: Process 11480 attached
[pid 11480] set_robust_list(0x5555874576a0, 24) = 0
[pid 11480] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11480] setpgid(0, 0)               = 0
[pid 11480] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11480] write(3, "1000", 4)         = 4
[pid 11480] close(3)                    = 0
[pid 11480] write(1, "executing program\n", 18executing program
) = 18
[pid 11480] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11480] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11480] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11480] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11480] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11480] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11480] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11481 attached
 => {parent_tid=[11481]}, 88) = 11481
[pid 11481] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11481] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11481] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11480] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11480] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11481] <... futex resumed>)        = 0
[pid 11481] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11481] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11481] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11480] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11480] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11481] <... futex resumed>)        = 0
[pid 11481] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11481] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11481] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11480] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11480] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11481] <... futex resumed>)        = 0
[pid 11481] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11481] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11481] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11480] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11480] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11481] <... futex resumed>)        = 0
[pid 11481] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11481] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11480] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11481] <... futex resumed>)        = 0
[pid 11481] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11480] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11480] exit_group(0)               = ?
[pid 11481] <... futex resumed>)        = ?
[pid 11481] +++ exited with 0 +++
[pid 11480] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11480, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11482
./strace-static-x86_64: Process 11482 attached
[pid 11482] set_robust_list(0x5555874576a0, 24) = 0
[pid 11482] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11482] setpgid(0, 0)               = 0
[pid 11482] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11482] write(3, "1000", 4)         = 4
[pid 11482] close(3)                    = 0
[pid 11482] write(1, "executing program\n", 18executing program
) = 18
[pid 11482] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11482] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11482] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11482] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11482] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11482] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11482] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11483 attached
 <unfinished ...>
[pid 11483] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11482] <... clone3 resumed> => {parent_tid=[11483]}, 88) = 11483
[pid 11482] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11482] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11482] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11483] <... set_robust_list resumed>) = 0
[pid 11483] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11483] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11483] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11483] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11482] <... futex resumed>)        = 0
[pid 11482] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11483] <... futex resumed>)        = 0
[pid 11482] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11483] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11483] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11483] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11482] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11482] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11483] <... futex resumed>)        = 0
[pid 11483] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11483] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11483] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11482] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11482] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11483] <... futex resumed>)        = 0
[pid 11483] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11483] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11483] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11482] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11482] exit_group(0)               = ?
[pid 11483] <... futex resumed>)        = ?
[pid 11483] +++ exited with 0 +++
[pid 11482] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11482, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11484
./strace-static-x86_64: Process 11484 attached
[pid 11484] set_robust_list(0x5555874576a0, 24) = 0
[pid 11484] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11484] setpgid(0, 0)               = 0
[pid 11484] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11484] write(3, "1000", 4)         = 4
[pid 11484] close(3)                    = 0
[pid 11484] write(1, "executing program\n", 18executing program
) = 18
[pid 11484] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11484] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11484] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11484] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11484] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11484] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11484] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11485 attached
 => {parent_tid=[11485]}, 88) = 11485
[pid 11485] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11485] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11485] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11484] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11484] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11485] <... futex resumed>)        = 0
[pid 11485] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11485] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11485] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11484] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11484] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11485] <... futex resumed>)        = 0
[pid 11485] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11485] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11485] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11484] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11484] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11485] <... futex resumed>)        = 0
[pid 11485] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11485] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11485] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11484] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11484] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11485] <... futex resumed>)        = 0
[pid 11485] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11484] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11485] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11485] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11485] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11484] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11484] exit_group(0)               = ?
[pid 11485] <... futex resumed>)        = ?
[pid 11485] +++ exited with 0 +++
[pid 11484] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11484, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11486
./strace-static-x86_64: Process 11486 attached
[pid 11486] set_robust_list(0x5555874576a0, 24) = 0
[pid 11486] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11486] setpgid(0, 0)               = 0
[pid 11486] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11486] write(3, "1000", 4)         = 4
[pid 11486] close(3)                    = 0
executing program
[pid 11486] write(1, "executing program\n", 18) = 18
[pid 11486] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11486] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11486] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11486] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11486] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11486] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11486] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11487]}, 88) = 11487
[pid 11486] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11486] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11486] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11487 attached
 <unfinished ...>
[pid 11487] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11487] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11487] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11487] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11486] <... futex resumed>)        = 0
[pid 11486] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11486] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11487] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11487] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11486] <... futex resumed>)        = 0
[pid 11486] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11486] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11487] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11487] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11486] <... futex resumed>)        = 0
[pid 11486] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11486] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11487] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11487] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11486] <... futex resumed>)        = 0
[pid 11486] exit_group(0)               = ?
[pid 11487] +++ exited with 0 +++
[pid 11486] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11486, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11488
./strace-static-x86_64: Process 11488 attached
[pid 11488] set_robust_list(0x5555874576a0, 24) = 0
[pid 11488] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11488] setpgid(0, 0)               = 0
[pid 11488] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11488] write(3, "1000", 4)         = 4
[pid 11488] close(3)                    = 0
executing program
[pid 11488] write(1, "executing program\n", 18) = 18
[pid 11488] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11488] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11488] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11488] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11488] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11488] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11488] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11489]}, 88) = 11489
./strace-static-x86_64: Process 11489 attached
[pid 11488] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11489] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11488] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11488] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11489] <... set_robust_list resumed>) = 0
[pid 11488] <... futex resumed>)        = 0
[pid 11489] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11488] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11489] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11489] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11489] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11488] <... futex resumed>)        = 0
[pid 11488] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11488] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11489] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11489] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11488] <... futex resumed>)        = 0
[pid 11488] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11488] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11489] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11489] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11488] <... futex resumed>)        = 0
[pid 11488] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11488] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11489] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11489] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11488] <... futex resumed>)        = 0
[pid 11488] exit_group(0)               = ?
[pid 11489] +++ exited with 0 +++
[pid 11488] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11488, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11490 attached
, child_tidptr=0x555587457690) = 11490
[pid 11490] set_robust_list(0x5555874576a0, 24) = 0
[pid 11490] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11490] setpgid(0, 0)               = 0
[pid 11490] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11490] write(3, "1000", 4)         = 4
[pid 11490] close(3)                    = 0
[pid 11490] write(1, "executing program\n", 18executing program
) = 18
[pid 11490] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11490] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11490] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11490] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11490] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11490] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11490] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11491 attached
 => {parent_tid=[11491]}, 88) = 11491
[pid 11491] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11491] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11491] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11490] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11490] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11491] <... futex resumed>)        = 0
[pid 11491] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11491] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11491] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11490] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11490] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11491] <... futex resumed>)        = 0
[pid 11491] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11491] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11491] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11490] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11490] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11491] <... futex resumed>)        = 0
[pid 11491] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11491] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11491] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11490] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11490] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11491] <... futex resumed>)        = 0
[pid 11491] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11491] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11491] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11490] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11490] exit_group(0)               = ?
[pid 11491] <... futex resumed>)        = ?
[pid 11491] +++ exited with 0 +++
[pid 11490] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11490, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11492 attached
, child_tidptr=0x555587457690) = 11492
[pid 11492] set_robust_list(0x5555874576a0, 24) = 0
[pid 11492] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11492] setpgid(0, 0)               = 0
[pid 11492] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11492] write(3, "1000", 4)         = 4
[pid 11492] close(3)                    = 0
executing program
[pid 11492] write(1, "executing program\n", 18) = 18
[pid 11492] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11492] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11492] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11492] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11492] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11492] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11492] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11493 attached
 => {parent_tid=[11493]}, 88) = 11493
[pid 11492] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11492] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11492] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11493] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11493] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11493] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11493] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11492] <... futex resumed>)        = 0
[pid 11492] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11492] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11493] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11493] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11492] <... futex resumed>)        = 0
[pid 11492] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11492] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11493] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11493] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11492] <... futex resumed>)        = 0
[pid 11492] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11492] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11493] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11493] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11492] <... futex resumed>)        = 0
[pid 11492] exit_group(0)               = ?
[pid 11493] +++ exited with 0 +++
[pid 11492] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11492, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11494
./strace-static-x86_64: Process 11494 attached
[pid 11494] set_robust_list(0x5555874576a0, 24) = 0
[pid 11494] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11494] setpgid(0, 0)               = 0
[pid 11494] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11494] write(3, "1000", 4)         = 4
[pid 11494] close(3)                    = 0
executing program
[pid 11494] write(1, "executing program\n", 18) = 18
[pid 11494] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11494] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11494] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11494] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11494] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11494] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11494] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11495]}, 88) = 11495
[pid 11494] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11494] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11494] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11495 attached
 <unfinished ...>
[pid 11495] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11495] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11495] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11495] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11494] <... futex resumed>)        = 0
[pid 11494] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11494] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11495] <... futex resumed>)        = 1
[pid 11495] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11495] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11494] <... futex resumed>)        = 0
[pid 11494] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11494] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11495] <... futex resumed>)        = 1
[pid 11495] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11495] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11494] <... futex resumed>)        = 0
[pid 11494] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11494] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11495] <... futex resumed>)        = 1
[pid 11495] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11495] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11494] <... futex resumed>)        = 0
[pid 11494] exit_group(0)               = ?
[pid 11495] <... futex resumed>)        = ?
[pid 11495] +++ exited with 0 +++
[pid 11494] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11494, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11496
./strace-static-x86_64: Process 11496 attached
[pid 11496] set_robust_list(0x5555874576a0, 24) = 0
[pid 11496] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11496] setpgid(0, 0)               = 0
[pid 11496] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11496] write(3, "1000", 4)         = 4
[pid 11496] close(3)                    = 0
executing program
[pid 11496] write(1, "executing program\n", 18) = 18
[pid 11496] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11496] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11496] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11496] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11496] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11496] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11496] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11497]}, 88) = 11497
[pid 11496] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11496] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11496] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11497 attached
 <unfinished ...>
[pid 11497] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11497] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11497] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11497] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11497] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11496] <... futex resumed>)        = 0
[pid 11496] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11496] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11497] <... futex resumed>)        = 0
[pid 11497] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11497] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11496] <... futex resumed>)        = 0
[pid 11496] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11497] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11496] <... futex resumed>)        = 0
[pid 11496] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11497] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11497] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11496] <... futex resumed>)        = 0
[pid 11496] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11496] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11497] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11497] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11496] <... futex resumed>)        = 0
[pid 11496] exit_group(0)               = ?
[pid 11497] +++ exited with 0 +++
[pid 11496] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11496, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11498
./strace-static-x86_64: Process 11498 attached
[pid 11498] set_robust_list(0x5555874576a0, 24) = 0
[pid 11498] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11498] setpgid(0, 0)               = 0
[pid 11498] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11498] write(3, "1000", 4)         = 4
[pid 11498] close(3)                    = 0
[pid 11498] write(1, "executing program\n", 18executing program
) = 18
[pid 11498] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11498] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11498] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11498] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11498] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11498] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11498] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11499]}, 88) = 11499
[pid 11498] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11498] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11498] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11499 attached
 <unfinished ...>
[pid 11499] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11499] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11499] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11499] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11498] <... futex resumed>)        = 0
[pid 11498] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11498] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11499] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11499] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11498] <... futex resumed>)        = 0
[pid 11498] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11498] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11499] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11499] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11498] <... futex resumed>)        = 0
[pid 11498] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11498] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11499] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11499] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11499] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11498] <... futex resumed>)        = 0
[pid 11498] exit_group(0)               = ?
[pid 11499] <... futex resumed>)        = ?
[pid 11499] +++ exited with 0 +++
[pid 11498] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11498, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11500 attached
, child_tidptr=0x555587457690) = 11500
[pid 11500] set_robust_list(0x5555874576a0, 24) = 0
[pid 11500] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11500] setpgid(0, 0)               = 0
[pid 11500] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11500] write(3, "1000", 4)         = 4
[pid 11500] close(3)                    = 0
executing program
[pid 11500] write(1, "executing program\n", 18) = 18
[pid 11500] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11500] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11500] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11500] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11500] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11500] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11500] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11501 attached
 => {parent_tid=[11501]}, 88) = 11501
[pid 11500] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11500] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11500] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11501] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11501] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11501] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11501] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11500] <... futex resumed>)        = 0
[pid 11500] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11500] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11501] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11501] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11500] <... futex resumed>)        = 0
[pid 11500] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11500] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11501] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11501] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11500] <... futex resumed>)        = 0
[pid 11500] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11500] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11501] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11501] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11500] <... futex resumed>)        = 0
[pid 11500] exit_group(0)               = ?
[pid 11501] +++ exited with 0 +++
[pid 11500] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11500, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11502 attached
, child_tidptr=0x555587457690) = 11502
[pid 11502] set_robust_list(0x5555874576a0, 24) = 0
[pid 11502] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11502] setpgid(0, 0)               = 0
[pid 11502] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11502] write(3, "1000", 4)         = 4
[pid 11502] close(3)                    = 0
[pid 11502] write(1, "executing program\n", 18executing program
) = 18
[pid 11502] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11502] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11502] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11502] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11502] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11502] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11502] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11503 attached
 => {parent_tid=[11503]}, 88) = 11503
[pid 11503] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11503] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11503] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11502] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11502] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11503] <... futex resumed>)        = 0
[pid 11503] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11503] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11503] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11502] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11502] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11503] <... futex resumed>)        = 0
[pid 11503] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11503] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11503] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11502] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11502] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11503] <... futex resumed>)        = 0
[pid 11503] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11503] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11503] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11502] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11502] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11503] <... futex resumed>)        = 0
[pid 11503] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11502] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11503] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11503] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11503] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11502] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11502] exit_group(0)               = ?
[pid 11503] <... futex resumed>)        = ?
[pid 11503] +++ exited with 0 +++
[pid 11502] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11502, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11504
./strace-static-x86_64: Process 11504 attached
[pid 11504] set_robust_list(0x5555874576a0, 24) = 0
[pid 11504] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11504] setpgid(0, 0)               = 0
[pid 11504] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11504] write(3, "1000", 4)         = 4
[pid 11504] close(3)                    = 0
[pid 11504] write(1, "executing program\n", 18executing program
) = 18
[pid 11504] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11504] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11504] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11504] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11504] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11504] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11504] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11505 attached
 <unfinished ...>
[pid 11505] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11505] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11505] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11504] <... clone3 resumed> => {parent_tid=[11505]}, 88) = 11505
[pid 11504] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11504] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11505] <... futex resumed>)        = 0
[pid 11505] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11505] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11505] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11504] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11504] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11505] <... futex resumed>)        = 0
[pid 11505] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11504] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11505] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11505] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11504] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11504] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11505] <... futex resumed>)        = 0
[pid 11505] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11505] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11505] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11504] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11504] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11505] <... futex resumed>)        = 0
[pid 11505] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11504] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11505] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11505] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11504] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11505] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11504] exit_group(0 <unfinished ...>
[pid 11505] <... futex resumed>)        = ?
[pid 11504] <... exit_group resumed>)   = ?
[pid 11505] +++ exited with 0 +++
[pid 11504] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11504, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11506
./strace-static-x86_64: Process 11506 attached
[pid 11506] set_robust_list(0x5555874576a0, 24) = 0
[pid 11506] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11506] setpgid(0, 0)               = 0
[pid 11506] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11506] write(3, "1000", 4)         = 4
[pid 11506] close(3)                    = 0
[pid 11506] write(1, "executing program\n", 18executing program
) = 18
[pid 11506] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11506] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11506] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11506] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11506] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11506] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11506] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11507 attached
 => {parent_tid=[11507]}, 88) = 11507
[pid 11507] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11507] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11507] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11506] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11506] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11507] <... futex resumed>)        = 0
[pid 11507] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11507] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11507] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11506] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11506] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11507] <... futex resumed>)        = 0
[pid 11507] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11507] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11507] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11506] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11506] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11507] <... futex resumed>)        = 0
[pid 11507] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11507] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11507] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11506] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11506] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11507] <... futex resumed>)        = 0
[pid 11507] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11507] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11507] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11506] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11506] exit_group(0)               = ?
[pid 11507] <... futex resumed>)        = ?
[pid 11507] +++ exited with 0 +++
[pid 11506] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11506, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11508
./strace-static-x86_64: Process 11508 attached
[pid 11508] set_robust_list(0x5555874576a0, 24) = 0
[pid 11508] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11508] setpgid(0, 0)               = 0
[pid 11508] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11508] write(3, "1000", 4)         = 4
[pid 11508] close(3)                    = 0
[pid 11508] write(1, "executing program\n", 18executing program
) = 18
[pid 11508] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11508] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11508] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11508] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11508] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11508] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11508] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11509 attached
 <unfinished ...>
[pid 11509] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11509] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11509] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11508] <... clone3 resumed> => {parent_tid=[11509]}, 88) = 11509
[pid 11508] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11508] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11509] <... futex resumed>)        = 0
[pid 11509] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11509] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11509] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11508] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11508] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11509] <... futex resumed>)        = 0
[pid 11509] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11508] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11509] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11509] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11508] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11508] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11509] <... futex resumed>)        = 0
[pid 11509] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11508] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11509] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11508] <... futex resumed>)        = 0
[pid 11508] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11508] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11509] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11509] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11508] <... futex resumed>)        = 0
[pid 11508] exit_group(0)               = ?
[pid 11509] +++ exited with 0 +++
[pid 11508] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11508, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11510
./strace-static-x86_64: Process 11510 attached
[pid 11510] set_robust_list(0x5555874576a0, 24) = 0
[pid 11510] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11510] setpgid(0, 0)               = 0
[pid 11510] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11510] write(3, "1000", 4)         = 4
[pid 11510] close(3)                    = 0
[pid 11510] write(1, "executing program\n", 18executing program
) = 18
[pid 11510] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11510] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11510] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11510] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11510] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11510] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11510] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11511]}, 88) = 11511
[pid 11510] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11510] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11510] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11511 attached
 <unfinished ...>
[pid 11511] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11511] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11511] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11511] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11510] <... futex resumed>)        = 0
[pid 11510] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11510] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11511] <... futex resumed>)        = 1
[pid 11511] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11511] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11510] <... futex resumed>)        = 0
[pid 11510] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11510] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11511] <... futex resumed>)        = 1
[pid 11511] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11511] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11510] <... futex resumed>)        = 0
[pid 11510] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11510] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11511] <... futex resumed>)        = 1
[pid 11511] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11511] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11510] <... futex resumed>)        = 0
[pid 11510] exit_group(0)               = ?
[pid 11511] <... futex resumed>)        = ?
[pid 11511] +++ exited with 0 +++
[pid 11510] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11510, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11512
./strace-static-x86_64: Process 11512 attached
[pid 11512] set_robust_list(0x5555874576a0, 24) = 0
[pid 11512] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11512] setpgid(0, 0)               = 0
[pid 11512] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11512] write(3, "1000", 4)         = 4
[pid 11512] close(3)                    = 0
executing program
[pid 11512] write(1, "executing program\n", 18) = 18
[pid 11512] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11512] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11512] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11512] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11512] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11512] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11512] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11513 attached
 => {parent_tid=[11513]}, 88) = 11513
[pid 11513] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11513] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11513] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11512] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11512] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11513] <... futex resumed>)        = 0
[pid 11513] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11513] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11513] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11512] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11512] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11513] <... futex resumed>)        = 0
[pid 11513] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11513] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11513] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11512] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11512] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11513] <... futex resumed>)        = 0
[pid 11513] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11513] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11513] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11512] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11512] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11513] <... futex resumed>)        = 0
[pid 11513] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11513] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11513] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11512] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11512] exit_group(0 <unfinished ...>
[pid 11513] <... futex resumed>)        = ?
[pid 11512] <... exit_group resumed>)   = ?
[pid 11513] +++ exited with 0 +++
[pid 11512] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11512, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11514 attached
, child_tidptr=0x555587457690) = 11514
[pid 11514] set_robust_list(0x5555874576a0, 24) = 0
[pid 11514] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11514] setpgid(0, 0)               = 0
[pid 11514] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11514] write(3, "1000", 4)         = 4
[pid 11514] close(3)                    = 0
[pid 11514] write(1, "executing program\n", 18executing program
) = 18
[pid 11514] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11514] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11514] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11514] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11514] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11514] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11514] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11515]}, 88) = 11515
./strace-static-x86_64: Process 11515 attached
[pid 11515] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11515] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11515] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11514] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11514] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11515] <... futex resumed>)        = 0
[pid 11514] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11515] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11515] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11515] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11514] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11514] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11515] <... futex resumed>)        = 0
[pid 11515] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11514] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11515] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11515] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11515] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11514] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11514] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11515] <... futex resumed>)        = 0
[pid 11515] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11515] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11515] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11514] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11514] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11515] <... futex resumed>)        = 0
[pid 11514] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11515] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11515] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11514] <... futex resumed>)        = 0
[pid 11515] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11514] exit_group(0)               = ?
[pid 11515] <... futex resumed>)        = ?
[pid 11515] +++ exited with 0 +++
[pid 11514] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11514, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11516 attached
, child_tidptr=0x555587457690) = 11516
[pid 11516] set_robust_list(0x5555874576a0, 24) = 0
[pid 11516] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11516] setpgid(0, 0)               = 0
[pid 11516] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11516] write(3, "1000", 4)         = 4
[pid 11516] close(3)                    = 0
executing program
[pid 11516] write(1, "executing program\n", 18) = 18
[pid 11516] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11516] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11516] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11516] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11516] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11516] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11516] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11517]}, 88) = 11517
./strace-static-x86_64: Process 11517 attached
[pid 11516] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11516] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11516] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11517] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11517] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11517] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11517] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11516] <... futex resumed>)        = 0
[pid 11516] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11516] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11517] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11517] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11516] <... futex resumed>)        = 0
[pid 11516] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11516] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11517] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11517] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11516] <... futex resumed>)        = 0
[pid 11516] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11516] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11517] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11517] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11516] <... futex resumed>)        = 0
[pid 11516] exit_group(0)               = ?
[pid 11517] +++ exited with 0 +++
[pid 11516] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11516, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11518 attached
 <unfinished ...>
[pid 11518] set_robust_list(0x5555874576a0, 24) = 0
[pid 11518] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 11518
[pid 11518] <... prctl resumed>)        = 0
[pid 11518] setpgid(0, 0)               = 0
[pid 11518] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11518] write(3, "1000", 4)         = 4
[pid 11518] close(3)                    = 0
[pid 11518] write(1, "executing program\n", 18executing program
) = 18
[pid 11518] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11518] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11518] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11518] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11518] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11518] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11518] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11519 attached
 => {parent_tid=[11519]}, 88) = 11519
[pid 11519] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11518] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11519] <... set_robust_list resumed>) = 0
[pid 11518] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11519] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11518] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11519] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11518] <... futex resumed>)        = 0
[pid 11519] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11518] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11519] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11519] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11518] <... futex resumed>)        = 0
[pid 11518] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11518] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11519] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11519] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11518] <... futex resumed>)        = 0
[pid 11518] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11518] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11519] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11519] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11518] <... futex resumed>)        = 0
[pid 11518] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11518] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11519] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11519] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11518] <... futex resumed>)        = 0
[pid 11518] exit_group(0)               = ?
[pid 11519] +++ exited with 0 +++
[pid 11518] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11518, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11520 attached
 <unfinished ...>
[pid 11520] set_robust_list(0x5555874576a0, 24) = 0
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 11520
[pid 11520] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11520] setpgid(0, 0)               = 0
[pid 11520] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11520] write(3, "1000", 4)         = 4
[pid 11520] close(3executing program
)                    = 0
[pid 11520] write(1, "executing program\n", 18) = 18
[pid 11520] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11520] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11520] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11520] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11520] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11520] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11520] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11521 attached
 => {parent_tid=[11521]}, 88) = 11521
[pid 11520] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11520] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11520] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11521] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11521] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11521] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11521] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11520] <... futex resumed>)        = 0
[pid 11521] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11520] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11521] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11520] <... futex resumed>)        = 0
[pid 11521] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11520] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11521] <... futex resumed>)        = 0
[pid 11520] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11521] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11520] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11521] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11520] <... futex resumed>)        = 0
[pid 11521] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11520] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11521] <... futex resumed>)        = 0
[pid 11520] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11521] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11520] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11521] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11520] <... futex resumed>)        = 0
[pid 11521] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11520] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11521] <... futex resumed>)        = 0
[pid 11520] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11521] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11520] exit_group(0 <unfinished ...>
[pid 11521] <... futex resumed>)        = ?
[pid 11520] <... exit_group resumed>)   = ?
[pid 11521] +++ exited with 0 +++
[pid 11520] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11520, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11522
./strace-static-x86_64: Process 11522 attached
[pid 11522] set_robust_list(0x5555874576a0, 24) = 0
[pid 11522] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11522] setpgid(0, 0)               = 0
[pid 11522] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11522] write(3, "1000", 4)         = 4
[pid 11522] close(3)                    = 0
executing program
[pid 11522] write(1, "executing program\n", 18) = 18
[pid 11522] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11522] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11522] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11522] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11522] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11522] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11522] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11523]}, 88) = 11523
[pid 11522] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11522] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11522] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11523 attached
 <unfinished ...>
[pid 11523] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11523] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11523] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11523] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11522] <... futex resumed>)        = 0
[pid 11522] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11522] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11523] <... futex resumed>)        = 1
[pid 11523] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11523] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11522] <... futex resumed>)        = 0
[pid 11522] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11522] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11523] <... futex resumed>)        = 1
[pid 11523] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11523] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11522] <... futex resumed>)        = 0
[pid 11522] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11522] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11523] <... futex resumed>)        = 1
[pid 11523] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11523] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11522] <... futex resumed>)        = 0
[pid 11522] exit_group(0)               = ?
[pid 11523] <... futex resumed>)        = ?
[pid 11523] +++ exited with 0 +++
[pid 11522] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11522, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11524
./strace-static-x86_64: Process 11524 attached
[pid 11524] set_robust_list(0x5555874576a0, 24) = 0
[pid 11524] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11524] setpgid(0, 0)               = 0
[pid 11524] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11524] write(3, "1000", 4)         = 4
[pid 11524] close(3)                    = 0
[pid 11524] write(1, "executing program\n", 18executing program
) = 18
[pid 11524] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11524] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11524] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11524] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11524] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11524] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11524] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11525]}, 88) = 11525
[pid 11524] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11524] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11524] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11525 attached
 <unfinished ...>
[pid 11525] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11525] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11525] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11525] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11524] <... futex resumed>)        = 0
[pid 11525] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11524] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11525] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11525] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11524] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11525] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11524] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11525] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11524] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11525] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11524] <... futex resumed>)        = 0
[pid 11524] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11525] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11525] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11524] <... futex resumed>)        = 0
[pid 11524] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11525] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11524] <... futex resumed>)        = 0
[pid 11525] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11524] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11525] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11524] <... futex resumed>)        = 0
[pid 11525] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11524] exit_group(0)               = ?
[pid 11525] <... futex resumed>)        = ?
[pid 11525] +++ exited with 0 +++
[pid 11524] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11524, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11526 attached
, child_tidptr=0x555587457690) = 11526
[pid 11526] set_robust_list(0x5555874576a0, 24) = 0
[pid 11526] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11526] setpgid(0, 0)               = 0
[pid 11526] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11526] write(3, "1000", 4)         = 4
[pid 11526] close(3)                    = 0
executing program
[pid 11526] write(1, "executing program\n", 18) = 18
[pid 11526] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11526] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11526] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11526] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11526] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11526] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11526] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11527]}, 88) = 11527
[pid 11526] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11526] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11526] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11527 attached
 <unfinished ...>
[pid 11527] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11527] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11527] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11527] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11526] <... futex resumed>)        = 0
[pid 11527] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11526] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11527] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11527] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11526] <... futex resumed>)        = 0
[pid 11527] <... futex resumed>)        = 0
[pid 11526] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11527] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11526] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11526] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11526] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11527] <... futex resumed>)        = 0
[pid 11527] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11527] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11526] <... futex resumed>)        = 0
[pid 11526] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11526] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11527] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11527] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11526] <... futex resumed>)        = 0
[pid 11526] exit_group(0 <unfinished ...>
[pid 11527] ????( <unfinished ...>
[pid 11526] <... exit_group resumed>)   = ?
[pid 11527] <... ???? resumed>)         = ?
[pid 11527] +++ exited with 0 +++
[pid 11526] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11526, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11528
./strace-static-x86_64: Process 11528 attached
[pid 11528] set_robust_list(0x5555874576a0, 24) = 0
[pid 11528] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11528] setpgid(0, 0)               = 0
[pid 11528] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11528] write(3, "1000", 4)         = 4
[pid 11528] close(3)                    = 0
[pid 11528] write(1, "executing program\n", 18executing program
) = 18
[pid 11528] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11528] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11528] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11528] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11528] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11528] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11528] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11529 attached
 => {parent_tid=[11529]}, 88) = 11529
[pid 11528] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11529] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11528] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11529] <... set_robust_list resumed>) = 0
[pid 11528] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11529] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11528] <... futex resumed>)        = 0
[pid 11529] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11528] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11529] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11529] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11528] <... futex resumed>)        = 0
[pid 11528] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11528] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11529] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11529] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11528] <... futex resumed>)        = 0
[pid 11528] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11528] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11529] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11529] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11528] <... futex resumed>)        = 0
[pid 11528] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11528] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11529] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11529] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11528] <... futex resumed>)        = 0
[pid 11528] exit_group(0)               = ?
[pid 11529] +++ exited with 0 +++
[pid 11528] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11528, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11530
./strace-static-x86_64: Process 11530 attached
[pid 11530] set_robust_list(0x5555874576a0, 24) = 0
[pid 11530] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11530] setpgid(0, 0)               = 0
[pid 11530] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11530] write(3, "1000", 4)         = 4
executing program
[pid 11530] close(3)                    = 0
[pid 11530] write(1, "executing program\n", 18) = 18
[pid 11530] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11530] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11530] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11530] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11530] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11530] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11530] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11531]}, 88) = 11531
./strace-static-x86_64: Process 11531 attached
[pid 11531] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11531] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11530] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11531] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11531] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11530] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11530] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11531] <... futex resumed>)        = 0
[pid 11531] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11530] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11531] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11531] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11530] <... futex resumed>)        = 0
[pid 11530] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11530] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11531] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11531] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11530] <... futex resumed>)        = 0
[pid 11530] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11530] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11531] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11531] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11530] <... futex resumed>)        = 0
[pid 11530] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11530] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11531] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11531] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11530] <... futex resumed>)        = 0
[pid 11530] exit_group(0)               = ?
[pid 11531] +++ exited with 0 +++
[pid 11530] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11530, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11532
./strace-static-x86_64: Process 11532 attached
[pid 11532] set_robust_list(0x5555874576a0, 24) = 0
[pid 11532] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11532] setpgid(0, 0)               = 0
[pid 11532] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11532] write(3, "1000", 4)         = 4
[pid 11532] close(3)                    = 0
executing program
[pid 11532] write(1, "executing program\n", 18) = 18
[pid 11532] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11532] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11532] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11532] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11532] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11532] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11532] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11533]}, 88) = 11533
./strace-static-x86_64: Process 11533 attached
[pid 11532] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11533] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11533] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11533] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11532] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11532] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11533] <... futex resumed>)        = 0
[pid 11532] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11533] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11533] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11533] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11532] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11532] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11533] <... futex resumed>)        = 0
[pid 11532] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11533] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11533] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11533] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11532] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11532] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11533] <... futex resumed>)        = 0
[pid 11533] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11533] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11533] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11532] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11532] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11533] <... futex resumed>)        = 0
[pid 11532] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11533] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11533] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11532] <... futex resumed>)        = 0
[pid 11533] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11532] exit_group(0)               = ?
[pid 11533] <... futex resumed>)        = ?
[pid 11533] +++ exited with 0 +++
[pid 11532] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11532, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11534
./strace-static-x86_64: Process 11534 attached
[pid 11534] set_robust_list(0x5555874576a0, 24) = 0
[pid 11534] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11534] setpgid(0, 0)               = 0
[pid 11534] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11534] write(3, "1000", 4)         = 4
[pid 11534] close(3executing program
)                    = 0
[pid 11534] write(1, "executing program\n", 18) = 18
[pid 11534] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11534] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11534] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11534] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11534] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11534] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11534] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11535 attached
 <unfinished ...>
[pid 11535] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11535] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11535] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11534] <... clone3 resumed> => {parent_tid=[11535]}, 88) = 11535
[pid 11534] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11534] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11535] <... futex resumed>)        = 0
[pid 11535] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11534] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11535] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11535] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11535] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11534] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11534] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11535] <... futex resumed>)        = 0
[pid 11535] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11535] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11535] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11534] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11534] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11535] <... futex resumed>)        = 0
[pid 11535] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11535] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11535] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11534] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11534] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11535] <... futex resumed>)        = 0
[pid 11534] <... futex resumed>)        = 1
[pid 11534] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11535] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11535] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11534] <... futex resumed>)        = 0
[pid 11535] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11534] exit_group(0)               = ?
[pid 11535] <... futex resumed>)        = ?
[pid 11535] +++ exited with 0 +++
[pid 11534] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11534, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11536
./strace-static-x86_64: Process 11536 attached
[pid 11536] set_robust_list(0x5555874576a0, 24) = 0
[pid 11536] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11536] setpgid(0, 0)               = 0
[pid 11536] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11536] write(3, "1000", 4)         = 4
[pid 11536] close(3)                    = 0
[pid 11536] write(1, "executing program\n", 18executing program
) = 18
[pid 11536] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11536] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11536] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11536] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11536] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11536] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11536] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11537 attached
 => {parent_tid=[11537]}, 88) = 11537
[pid 11536] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11536] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11536] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11537] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11537] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11537] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11537] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11536] <... futex resumed>)        = 0
[pid 11536] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11536] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11537] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11537] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11536] <... futex resumed>)        = 0
[pid 11536] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11536] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11537] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11537] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11536] <... futex resumed>)        = 0
[pid 11536] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11536] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11537] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11537] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11536] <... futex resumed>)        = 0
[pid 11536] exit_group(0)               = ?
[pid 11537] +++ exited with 0 +++
[pid 11536] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11536, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11538
./strace-static-x86_64: Process 11538 attached
[pid 11538] set_robust_list(0x5555874576a0, 24) = 0
[pid 11538] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11538] setpgid(0, 0)               = 0
[pid 11538] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11538] write(3, "1000", 4executing program
)         = 4
[pid 11538] close(3)                    = 0
[pid 11538] write(1, "executing program\n", 18) = 18
[pid 11538] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11538] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11538] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11538] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11538] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11538] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11538] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11539 attached
 => {parent_tid=[11539]}, 88) = 11539
[pid 11539] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11539] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11539] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11538] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11538] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11538] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11539] <... futex resumed>)        = 0
[pid 11539] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11539] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11538] <... futex resumed>)        = 0
[pid 11538] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11538] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11539] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11539] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11538] <... futex resumed>)        = 0
[pid 11538] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11538] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11539] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11539] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11538] <... futex resumed>)        = 0
[pid 11538] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11538] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11539] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11539] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11538] <... futex resumed>)        = 0
[pid 11538] exit_group(0)               = ?
[pid 11539] +++ exited with 0 +++
[pid 11538] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11538, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11540
./strace-static-x86_64: Process 11540 attached
[pid 11540] set_robust_list(0x5555874576a0, 24) = 0
[pid 11540] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11540] setpgid(0, 0)               = 0
[pid 11540] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11540] write(3, "1000", 4)         = 4
[pid 11540] close(3)                    = 0
executing program
[pid 11540] write(1, "executing program\n", 18) = 18
[pid 11540] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11540] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11540] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11540] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11540] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11540] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11540] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11541 attached
 => {parent_tid=[11541]}, 88) = 11541
[pid 11541] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11541] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11541] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11540] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11540] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11541] <... futex resumed>)        = 0
[pid 11541] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11541] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11541] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11540] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11540] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11541] <... futex resumed>)        = 0
[pid 11540] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11541] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11541] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11540] <... futex resumed>)        = 0
[pid 11541] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11540] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11541] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11540] <... futex resumed>)        = 0
[pid 11541] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11540] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11541] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11541] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11540] <... futex resumed>)        = 0
[pid 11541] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11540] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11541] <... futex resumed>)        = 0
[pid 11540] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11541] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11541] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11541] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11540] <... futex resumed>)        = 0
[pid 11540] exit_group(0)               = ?
[pid 11541] <... futex resumed>)        = ?
[pid 11541] +++ exited with 0 +++
[pid 11540] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11540, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11542
./strace-static-x86_64: Process 11542 attached
[pid 11542] set_robust_list(0x5555874576a0, 24) = 0
[pid 11542] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11542] setpgid(0, 0)               = 0
[pid 11542] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11542] write(3, "1000", 4)         = 4
[pid 11542] close(3)                    = 0
[pid 11542] write(1, "executing program\n", 18executing program
) = 18
[pid 11542] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11542] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11542] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11542] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11542] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11542] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11542] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11543 attached
 <unfinished ...>
[pid 11543] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11543] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11543] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11542] <... clone3 resumed> => {parent_tid=[11543]}, 88) = 11543
[pid 11542] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11542] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11543] <... futex resumed>)        = 0
[pid 11543] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11543] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11543] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11542] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11542] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11543] <... futex resumed>)        = 0
[pid 11542] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11543] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11543] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11542] <... futex resumed>)        = 0
[pid 11543] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11542] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11543] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11542] <... futex resumed>)        = 0
[pid 11542] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11543] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11543] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11542] <... futex resumed>)        = 0
[pid 11543] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11542] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11543] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11542] <... futex resumed>)        = 0
[pid 11543] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11542] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11543] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11543] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11542] <... futex resumed>)        = 0
[pid 11543] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11542] exit_group(0)               = ?
[pid 11543] <... futex resumed>)        = ?
[pid 11543] +++ exited with 0 +++
[pid 11542] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11542, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11544
./strace-static-x86_64: Process 11544 attached
[pid 11544] set_robust_list(0x5555874576a0, 24) = 0
[pid 11544] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11544] setpgid(0, 0)               = 0
[pid 11544] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11544] write(3, "1000", 4)         = 4
[pid 11544] close(3executing program
)                    = 0
[pid 11544] write(1, "executing program\n", 18) = 18
[pid 11544] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11544] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11544] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11544] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11544] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11544] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11544] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11545]}, 88) = 11545
[pid 11544] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11544] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11544] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11545 attached
 <unfinished ...>
[pid 11545] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11545] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11545] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11545] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11544] <... futex resumed>)        = 0
[pid 11544] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11544] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11545] <... futex resumed>)        = 1
[pid 11545] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11545] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11544] <... futex resumed>)        = 0
[pid 11544] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11544] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11545] <... futex resumed>)        = 1
[pid 11545] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11545] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11544] <... futex resumed>)        = 0
[pid 11544] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11544] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11545] <... futex resumed>)        = 1
[pid 11545] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11545] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11544] <... futex resumed>)        = 0
[pid 11544] exit_group(0)               = ?
[pid 11545] <... futex resumed>)        = ?
[pid 11545] +++ exited with 0 +++
[pid 11544] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11544, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11546
./strace-static-x86_64: Process 11546 attached
[pid 11546] set_robust_list(0x5555874576a0, 24) = 0
[pid 11546] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11546] setpgid(0, 0)               = 0
[pid 11546] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11546] write(3, "1000", 4)         = 4
[pid 11546] close(3)                    = 0
[pid 11546] write(1, "executing program\n", 18executing program
) = 18
[pid 11546] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11546] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11546] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11546] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11546] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11546] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11546] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11547]}, 88) = 11547
[pid 11546] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11546] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11546] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11547 attached
 <unfinished ...>
[pid 11547] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11547] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11547] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11547] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11546] <... futex resumed>)        = 0
[pid 11546] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11546] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11547] <... futex resumed>)        = 1
[pid 11547] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11547] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11546] <... futex resumed>)        = 0
[pid 11546] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11546] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11547] <... futex resumed>)        = 1
[pid 11547] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11547] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11546] <... futex resumed>)        = 0
[pid 11546] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11546] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11547] <... futex resumed>)        = 1
[pid 11547] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11547] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11546] <... futex resumed>)        = 0
[pid 11546] exit_group(0)               = ?
[pid 11547] <... futex resumed>)        = ?
[pid 11547] +++ exited with 0 +++
[pid 11546] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11546, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11548 attached
, child_tidptr=0x555587457690) = 11548
[pid 11548] set_robust_list(0x5555874576a0, 24) = 0
[pid 11548] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11548] setpgid(0, 0)               = 0
[pid 11548] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11548] write(3, "1000", 4)         = 4
[pid 11548] close(3)                    = 0
executing program
[pid 11548] write(1, "executing program\n", 18) = 18
[pid 11548] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11548] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11548] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11548] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11548] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11548] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11548] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11549 attached
 => {parent_tid=[11549]}, 88) = 11549
[pid 11549] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11549] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11549] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11548] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11548] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11549] <... futex resumed>)        = 0
[pid 11549] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11549] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11549] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11548] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11548] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11549] <... futex resumed>)        = 0
[pid 11549] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11549] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11549] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11548] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11548] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11549] <... futex resumed>)        = 0
[pid 11549] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11549] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11548] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11549] <... futex resumed>)        = 0
[pid 11548] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11549] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11548] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11549] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11548] <... futex resumed>)        = 0
[pid 11548] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11549] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11549] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11548] <... futex resumed>)        = 0
[pid 11548] exit_group(0)               = ?
[pid 11549] +++ exited with 0 +++
[pid 11548] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11548, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11550
./strace-static-x86_64: Process 11550 attached
[pid 11550] set_robust_list(0x5555874576a0, 24) = 0
[pid 11550] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11550] setpgid(0, 0)               = 0
[pid 11550] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11550] write(3, "1000", 4)         = 4
[pid 11550] close(3)                    = 0
[pid 11550] write(1, "executing program\n", 18executing program
) = 18
[pid 11550] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11550] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11550] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11550] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11550] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11550] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11550] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11551 attached
 => {parent_tid=[11551]}, 88) = 11551
[pid 11551] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11551] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11551] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11550] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11550] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11551] <... futex resumed>)        = 0
[pid 11551] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11551] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11551] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11550] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11550] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11551] <... futex resumed>)        = 0
[pid 11551] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11551] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11551] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11550] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11550] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11551] <... futex resumed>)        = 0
[pid 11551] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11551] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11551] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11550] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11550] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11551] <... futex resumed>)        = 0
[pid 11551] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11551] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11551] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11550] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11550] exit_group(0)               = ?
[pid 11551] <... futex resumed>)        = ?
[pid 11551] +++ exited with 0 +++
[pid 11550] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11550, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11552 attached
, child_tidptr=0x555587457690) = 11552
[pid 11552] set_robust_list(0x5555874576a0, 24) = 0
[pid 11552] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11552] setpgid(0, 0)               = 0
[pid 11552] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11552] write(3, "1000", 4)         = 4
[pid 11552] close(3)                    = 0
[pid 11552] write(1, "executing program\n", 18executing program
) = 18
[pid 11552] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11552] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11552] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11552] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11552] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11552] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11552] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11553 attached
 <unfinished ...>
[pid 11553] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11552] <... clone3 resumed> => {parent_tid=[11553]}, 88) = 11553
[pid 11553] <... set_robust_list resumed>) = 0
[pid 11552] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11553] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11552] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11553] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11552] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11553] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11552] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11553] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11553] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11552] <... futex resumed>)        = 0
[pid 11552] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11552] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11553] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11553] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11552] <... futex resumed>)        = 0
[pid 11552] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11552] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11553] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11553] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11552] <... futex resumed>)        = 0
[pid 11552] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11552] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11553] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11553] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11552] <... futex resumed>)        = 0
[pid 11552] exit_group(0 <unfinished ...>
[pid 11553] ????( <unfinished ...>
[pid 11552] <... exit_group resumed>)   = ?
[pid 11553] <... ???? resumed>)         = ?
[pid 11553] +++ exited with 0 +++
[pid 11552] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11552, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11554 attached
 <unfinished ...>
[pid 11554] set_robust_list(0x5555874576a0, 24) = 0
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 11554
[pid 11554] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11554] setpgid(0, 0)               = 0
[pid 11554] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11554] write(3, "1000", 4)         = 4
[pid 11554] close(3)                    = 0
[pid 11554] write(1, "executing program\n", 18executing program
) = 18
[pid 11554] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11554] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11554] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11554] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11554] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11554] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11554] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11555 attached
 => {parent_tid=[11555]}, 88) = 11555
[pid 11555] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11555] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11555] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11554] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11554] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11555] <... futex resumed>)        = 0
[pid 11555] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11554] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11555] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11555] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11555] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11554] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11554] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11555] <... futex resumed>)        = 0
[pid 11555] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11555] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11555] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11554] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11554] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11555] <... futex resumed>)        = 0
[pid 11555] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11555] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11555] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11554] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11554] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11555] <... futex resumed>)        = 0
[pid 11555] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11554] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11555] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11555] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11555] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11554] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11554] exit_group(0)               = ?
[pid 11555] <... futex resumed>)        = ?
[pid 11555] +++ exited with 0 +++
[pid 11554] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11554, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11556
./strace-static-x86_64: Process 11556 attached
[pid 11556] set_robust_list(0x5555874576a0, 24) = 0
[pid 11556] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11556] setpgid(0, 0)               = 0
[pid 11556] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11556] write(3, "1000", 4)         = 4
[pid 11556] close(3)                    = 0
[pid 11556] write(1, "executing program\n", 18executing program
) = 18
[pid 11556] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11556] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11556] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11556] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11556] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11556] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11556] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11557 attached
 => {parent_tid=[11557]}, 88) = 11557
[pid 11557] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11557] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11557] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11556] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11556] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11557] <... futex resumed>)        = 0
[pid 11557] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11557] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11557] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11556] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11556] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11557] <... futex resumed>)        = 0
[pid 11557] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11557] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11557] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11556] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11556] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11557] <... futex resumed>)        = 0
[pid 11557] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11557] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11557] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11556] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11556] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11557] <... futex resumed>)        = 0
[pid 11556] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11557] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11557] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11557] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11556] <... futex resumed>)        = 0
[pid 11556] exit_group(0)               = ?
[pid 11557] <... futex resumed>)        = ?
[pid 11557] +++ exited with 0 +++
[pid 11556] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11556, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11558
./strace-static-x86_64: Process 11558 attached
[pid 11558] set_robust_list(0x5555874576a0, 24) = 0
[pid 11558] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11558] setpgid(0, 0)               = 0
[pid 11558] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11558] write(3, "1000", 4)         = 4
[pid 11558] close(3)                    = 0
[pid 11558] write(1, "executing program\n", 18executing program
) = 18
[pid 11558] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11558] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11558] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11558] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11558] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11558] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11558] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11559 attached
 => {parent_tid=[11559]}, 88) = 11559
[pid 11559] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11558] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11559] <... set_robust_list resumed>) = 0
[pid 11558] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11559] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11558] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11559] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11558] <... futex resumed>)        = 0
[pid 11559] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11558] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11559] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11559] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11558] <... futex resumed>)        = 0
[pid 11559] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11558] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11559] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11558] <... futex resumed>)        = 0
[pid 11559] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11558] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11559] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11559] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11558] <... futex resumed>)        = 0
[pid 11559] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11558] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11559] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11558] <... futex resumed>)        = 0
[pid 11559] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11558] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11559] <... futex resumed>)        = 0
[pid 11558] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11559] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11558] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11559] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11558] <... futex resumed>)        = 0
[pid 11559] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11558] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11559] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11559] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11558] <... futex resumed>)        = 0
[pid 11559] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11558] exit_group(0 <unfinished ...>
[pid 11559] <... futex resumed>)        = ?
[pid 11558] <... exit_group resumed>)   = ?
[pid 11559] +++ exited with 0 +++
[pid 11558] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11558, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11560
./strace-static-x86_64: Process 11560 attached
[pid 11560] set_robust_list(0x5555874576a0, 24) = 0
[pid 11560] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11560] setpgid(0, 0)               = 0
[pid 11560] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11560] write(3, "1000", 4)         = 4
[pid 11560] close(3)                    = 0
[pid 11560] write(1, "executing program\n", 18executing program
) = 18
[pid 11560] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11560] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11560] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11560] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11560] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11560] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11560] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11561 attached
 <unfinished ...>
[pid 11561] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11560] <... clone3 resumed> => {parent_tid=[11561]}, 88) = 11561
[pid 11561] <... set_robust_list resumed>) = 0
[pid 11560] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11561] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11560] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11561] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11560] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11561] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11560] <... futex resumed>)        = 0
[pid 11561] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11560] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11561] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11560] <... futex resumed>)        = 0
[pid 11561] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11560] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11561] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11560] <... futex resumed>)        = 0
[pid 11561] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11560] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11561] <... futex resumed>)        = 0
[pid 11560] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11561] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11560] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11561] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11560] <... futex resumed>)        = 0
[pid 11561] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11560] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11561] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11561] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11560] <... futex resumed>)        = 0
[pid 11561] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11560] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11561] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11560] <... futex resumed>)        = 0
[pid 11561] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11560] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11561] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11561] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11560] <... futex resumed>)        = 0
[pid 11561] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11560] exit_group(0 <unfinished ...>
[pid 11561] <... futex resumed>)        = ?
[pid 11560] <... exit_group resumed>)   = ?
[pid 11561] +++ exited with 0 +++
[pid 11560] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11560, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11562
./strace-static-x86_64: Process 11562 attached
[pid 11562] set_robust_list(0x5555874576a0, 24) = 0
[pid 11562] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11562] setpgid(0, 0)               = 0
[pid 11562] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11562] write(3, "1000", 4)         = 4
[pid 11562] close(3)                    = 0
[pid 11562] write(1, "executing program\n", 18executing program
) = 18
[pid 11562] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11562] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11562] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11562] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11562] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11562] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11562] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11563 attached
 => {parent_tid=[11563]}, 88) = 11563
[pid 11563] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11563] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11563] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11562] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11562] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11563] <... futex resumed>)        = 0
[pid 11562] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11563] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11563] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11563] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11562] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11562] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11563] <... futex resumed>)        = 0
[pid 11563] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11563] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11563] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11562] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11562] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11563] <... futex resumed>)        = 0
[pid 11563] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11563] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11563] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11562] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11562] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11563] <... futex resumed>)        = 0
[pid 11563] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11563] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11563] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11562] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11562] exit_group(0)               = ?
[pid 11563] <... futex resumed>)        = ?
[pid 11563] +++ exited with 0 +++
[pid 11562] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11562, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11564
./strace-static-x86_64: Process 11564 attached
[pid 11564] set_robust_list(0x5555874576a0, 24) = 0
[pid 11564] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11564] setpgid(0, 0)               = 0
[pid 11564] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11564] write(3, "1000", 4)         = 4
[pid 11564] close(3)                    = 0
executing program
[pid 11564] write(1, "executing program\n", 18) = 18
[pid 11564] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11564] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11564] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11564] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11564] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11564] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11564] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11565]}, 88) = 11565
[pid 11564] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11564] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11564] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11565 attached
 <unfinished ...>
[pid 11565] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11565] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11565] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11565] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11564] <... futex resumed>)        = 0
[pid 11564] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11564] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11565] <... futex resumed>)        = 1
[pid 11565] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11565] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11564] <... futex resumed>)        = 0
[pid 11564] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11565] <... futex resumed>)        = 1
[pid 11564] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11565] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11565] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11564] <... futex resumed>)        = 0
[pid 11565] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11564] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11564] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11565] <... futex resumed>)        = 0
[pid 11565] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11565] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11564] <... futex resumed>)        = 0
[pid 11564] exit_group(0)               = ?
[pid 11565] <... futex resumed>)        = ?
[pid 11565] +++ exited with 0 +++
[pid 11564] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11564, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11566 attached
, child_tidptr=0x555587457690) = 11566
[pid 11566] set_robust_list(0x5555874576a0, 24) = 0
[pid 11566] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11566] setpgid(0, 0)               = 0
[pid 11566] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11566] write(3, "1000", 4)         = 4
[pid 11566] close(3)                    = 0
[pid 11566] write(1, "executing program\n", 18executing program
) = 18
[pid 11566] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11566] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11566] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11566] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11566] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11566] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11566] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11567]}, 88) = 11567
[pid 11566] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11566] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11566] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11567 attached
 <unfinished ...>
[pid 11567] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11567] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11567] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11567] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11566] <... futex resumed>)        = 0
[pid 11566] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11566] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11567] <... futex resumed>)        = 1
[pid 11567] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11567] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11566] <... futex resumed>)        = 0
[pid 11567] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11566] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11566] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11567] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11567] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11567] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11566] <... futex resumed>)        = 0
[pid 11566] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11566] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11567] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11567] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11566] <... futex resumed>)        = 0
[pid 11566] exit_group(0)               = ?
[pid 11567] +++ exited with 0 +++
[pid 11566] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11566, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11568
./strace-static-x86_64: Process 11568 attached
[pid 11568] set_robust_list(0x5555874576a0, 24) = 0
[pid 11568] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11568] setpgid(0, 0)               = 0
[pid 11568] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11568] write(3, "1000", 4)         = 4
[pid 11568] close(3)                    = 0
executing program
[pid 11568] write(1, "executing program\n", 18) = 18
[pid 11568] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11568] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11568] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11568] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11568] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11568] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11568] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11569 attached
 <unfinished ...>
[pid 11569] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11568] <... clone3 resumed> => {parent_tid=[11569]}, 88) = 11569
[pid 11569] <... set_robust_list resumed>) = 0
[pid 11569] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11569] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11568] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11568] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11569] <... futex resumed>)        = 0
[pid 11569] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11568] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11569] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11569] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11569] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11568] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11568] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11569] <... futex resumed>)        = 0
[pid 11569] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11568] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11569] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11569] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11568] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11568] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11569] <... futex resumed>)        = 0
[pid 11569] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11569] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11569] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11568] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11568] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11569] <... futex resumed>)        = 0
[pid 11568] <... futex resumed>)        = 1
[pid 11568] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11569] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11569] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11568] <... futex resumed>)        = 0
[pid 11569] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11568] exit_group(0 <unfinished ...>
[pid 11569] <... futex resumed>)        = ?
[pid 11568] <... exit_group resumed>)   = ?
[pid 11569] +++ exited with 0 +++
[pid 11568] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11568, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11570
./strace-static-x86_64: Process 11570 attached
[pid 11570] set_robust_list(0x5555874576a0, 24) = 0
[pid 11570] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11570] setpgid(0, 0)               = 0
[pid 11570] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11570] write(3, "1000", 4)         = 4
[pid 11570] close(3executing program
)                    = 0
[pid 11570] write(1, "executing program\n", 18) = 18
[pid 11570] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11570] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11570] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11570] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11570] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11570] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11570] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11571 attached
 <unfinished ...>
[pid 11571] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11571] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11571] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11570] <... clone3 resumed> => {parent_tid=[11571]}, 88) = 11571
[pid 11570] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11570] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11571] <... futex resumed>)        = 0
[pid 11571] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11571] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11571] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11570] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11570] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11571] <... futex resumed>)        = 0
[pid 11571] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11571] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11571] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11570] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11570] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11571] <... futex resumed>)        = 0
[pid 11571] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11571] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11571] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11570] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11570] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11571] <... futex resumed>)        = 0
[pid 11570] <... futex resumed>)        = 1
[pid 11570] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11571] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11571] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11570] <... futex resumed>)        = 0
[pid 11571] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11570] exit_group(0 <unfinished ...>
[pid 11571] <... futex resumed>)        = ?
[pid 11570] <... exit_group resumed>)   = ?
[pid 11571] +++ exited with 0 +++
[pid 11570] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11570, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11572
./strace-static-x86_64: Process 11572 attached
[pid 11572] set_robust_list(0x5555874576a0, 24) = 0
[pid 11572] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11572] setpgid(0, 0)               = 0
[pid 11572] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11572] write(3, "1000", 4)         = 4
[pid 11572] close(3)                    = 0
executing program
[pid 11572] write(1, "executing program\n", 18) = 18
[pid 11572] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11572] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11572] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11572] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11572] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11572] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11572] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11573 attached
 <unfinished ...>
[pid 11573] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11572] <... clone3 resumed> => {parent_tid=[11573]}, 88) = 11573
[pid 11573] <... set_robust_list resumed>) = 0
[pid 11573] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11573] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11572] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11572] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11573] <... futex resumed>)        = 0
[pid 11573] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11573] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11573] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11572] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11572] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11573] <... futex resumed>)        = 0
[pid 11573] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11573] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11573] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11572] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11572] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11573] <... futex resumed>)        = 0
[pid 11572] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11573] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11573] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11572] <... futex resumed>)        = 0
[pid 11572] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11572] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11573] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11573] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11572] <... futex resumed>)        = 0
[pid 11573] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11572] exit_group(0)               = ?
[pid 11573] <... futex resumed>)        = ?
[pid 11573] +++ exited with 0 +++
[pid 11572] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11572, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11574
./strace-static-x86_64: Process 11574 attached
[pid 11574] set_robust_list(0x5555874576a0, 24) = 0
[pid 11574] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11574] setpgid(0, 0)               = 0
[pid 11574] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11574] write(3, "1000", 4)         = 4
[pid 11574] close(3)                    = 0
executing program
[pid 11574] write(1, "executing program\n", 18) = 18
[pid 11574] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11574] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11574] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11574] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11574] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11574] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11574] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11575 attached
 <unfinished ...>
[pid 11575] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11574] <... clone3 resumed> => {parent_tid=[11575]}, 88) = 11575
[pid 11575] <... set_robust_list resumed>) = 0
[pid 11575] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11575] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11574] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11574] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11575] <... futex resumed>)        = 0
[pid 11575] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11574] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11575] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11575] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11575] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11574] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11574] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11575] <... futex resumed>)        = 0
[pid 11575] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11575] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11575] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11574] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11574] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11575] <... futex resumed>)        = 0
[pid 11574] <... futex resumed>)        = 1
[pid 11575] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11574] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11575] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11575] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11574] <... futex resumed>)        = 0
[pid 11575] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11574] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11575] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11574] <... futex resumed>)        = 0
[pid 11574] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11575] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11575] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11574] <... futex resumed>)        = 0
[pid 11575] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11574] exit_group(0)               = ?
[pid 11575] <... futex resumed>)        = ?
[pid 11575] +++ exited with 0 +++
[pid 11574] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11574, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11576
./strace-static-x86_64: Process 11576 attached
[pid 11576] set_robust_list(0x5555874576a0, 24) = 0
[pid 11576] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11576] setpgid(0, 0)               = 0
[pid 11576] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11576] write(3, "1000", 4)         = 4
[pid 11576] close(3)                    = 0
executing program
[pid 11576] write(1, "executing program\n", 18) = 18
[pid 11576] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11576] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11576] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11576] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11576] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11576] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11576] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11577 attached
 <unfinished ...>
[pid 11577] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11577] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11577] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11576] <... clone3 resumed> => {parent_tid=[11577]}, 88) = 11577
[pid 11576] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11576] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11577] <... futex resumed>)        = 0
[pid 11577] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11576] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11577] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11577] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11576] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11576] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11577] <... futex resumed>)        = 0
[pid 11576] <... futex resumed>)        = 1
[pid 11576] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11577] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11577] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11577] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11576] <... futex resumed>)        = 0
[pid 11577] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11576] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11577] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11576] <... futex resumed>)        = 0
[pid 11576] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11577] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11577] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11576] <... futex resumed>)        = 0
[pid 11576] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11576] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11577] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11577] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11577] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11576] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11576] exit_group(0)               = ?
[pid 11577] <... futex resumed>)        = ?
[pid 11577] +++ exited with 0 +++
[pid 11576] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11576, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11578
./strace-static-x86_64: Process 11578 attached
[pid 11578] set_robust_list(0x5555874576a0, 24) = 0
[pid 11578] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11578] setpgid(0, 0)               = 0
[pid 11578] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11578] write(3, "1000", 4)         = 4
[pid 11578] close(3)                    = 0
executing program
[pid 11578] write(1, "executing program\n", 18) = 18
[pid 11578] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11578] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11578] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11578] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11578] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11578] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11578] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11579 attached
 => {parent_tid=[11579]}, 88) = 11579
[pid 11579] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11579] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11579] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11578] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11578] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11579] <... futex resumed>)        = 0
[pid 11579] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11579] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11579] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11578] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11578] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11579] <... futex resumed>)        = 0
[pid 11578] <... futex resumed>)        = 1
[pid 11579] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11578] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11579] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11578] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11579] <... futex resumed>)        = 0
[pid 11578] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11579] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11578] <... futex resumed>)        = 0
[pid 11578] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11579] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11579] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11578] <... futex resumed>)        = 0
[pid 11579] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11578] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11579] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11578] <... futex resumed>)        = 0
[pid 11578] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11579] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11579] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11578] <... futex resumed>)        = 0
[pid 11579] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11578] exit_group(0 <unfinished ...>
[pid 11579] <... futex resumed>)        = ?
[pid 11578] <... exit_group resumed>)   = ?
[pid 11579] +++ exited with 0 +++
[pid 11578] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11578, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11580 attached
, child_tidptr=0x555587457690) = 11580
[pid 11580] set_robust_list(0x5555874576a0, 24) = 0
[pid 11580] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11580] setpgid(0, 0)               = 0
[pid 11580] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11580] write(3, "1000", 4)         = 4
[pid 11580] close(3)                    = 0
[pid 11580] write(1, "executing program\n", 18executing program
) = 18
[pid 11580] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11580] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11580] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11580] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11580] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11580] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11580] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11581 attached
 => {parent_tid=[11581]}, 88) = 11581
[pid 11581] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11581] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11581] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11580] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11580] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11581] <... futex resumed>)        = 0
[pid 11581] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11581] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11581] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11580] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11580] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11581] <... futex resumed>)        = 0
[pid 11581] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11581] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11581] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11580] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11580] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11581] <... futex resumed>)        = 0
[pid 11581] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11581] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11581] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11580] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11580] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11581] <... futex resumed>)        = 0
[pid 11581] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11580] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11581] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11581] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11581] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11580] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11580] exit_group(0)               = ?
[pid 11581] <... futex resumed>)        = ?
[pid 11581] +++ exited with 0 +++
[pid 11580] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11580, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11582
./strace-static-x86_64: Process 11582 attached
[pid 11582] set_robust_list(0x5555874576a0, 24) = 0
[pid 11582] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11582] setpgid(0, 0)               = 0
[pid 11582] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11582] write(3, "1000", 4)         = 4
[pid 11582] close(3)                    = 0
[pid 11582] write(1, "executing program\n", 18executing program
) = 18
[pid 11582] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11582] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11582] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11582] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11582] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11582] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11582] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11583 attached
 => {parent_tid=[11583]}, 88) = 11583
[pid 11582] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11582] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11582] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11583] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11583] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11583] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11583] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11582] <... futex resumed>)        = 0
[pid 11582] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11582] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11583] <... futex resumed>)        = 1
[pid 11583] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11583] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11582] <... futex resumed>)        = 0
[pid 11582] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11583] <... futex resumed>)        = 1
[pid 11583] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11583] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11583] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11582] <... futex resumed>)        = 1
[pid 11583] <... futex resumed>)        = 0
[pid 11583] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11582] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11582] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11583] <... futex resumed>)        = 0
[pid 11583] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11583] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11583] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11582] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11582] exit_group(0 <unfinished ...>
[pid 11583] <... futex resumed>)        = ?
[pid 11582] <... exit_group resumed>)   = ?
[pid 11583] +++ exited with 0 +++
[pid 11582] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11582, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11584
./strace-static-x86_64: Process 11584 attached
[pid 11584] set_robust_list(0x5555874576a0, 24) = 0
[pid 11584] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11584] setpgid(0, 0)               = 0
[pid 11584] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11584] write(3, "1000", 4)         = 4
[pid 11584] close(3)                    = 0
[pid 11584] write(1, "executing program\n", 18executing program
) = 18
[pid 11584] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11584] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11584] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11584] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11584] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11584] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11584] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11585 attached
 => {parent_tid=[11585]}, 88) = 11585
[pid 11585] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11585] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11585] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11584] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11584] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11585] <... futex resumed>)        = 0
[pid 11585] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11585] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11585] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11584] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11584] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11585] <... futex resumed>)        = 0
[pid 11585] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11585] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11585] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11584] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11584] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11585] <... futex resumed>)        = 0
[pid 11585] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11585] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11585] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11584] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11584] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11585] <... futex resumed>)        = 0
[pid 11585] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11585] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11585] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11584] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11584] exit_group(0)               = ?
[pid 11585] <... futex resumed>)        = ?
[pid 11585] +++ exited with 0 +++
[pid 11584] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11584, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11586
./strace-static-x86_64: Process 11586 attached
[pid 11586] set_robust_list(0x5555874576a0, 24) = 0
[pid 11586] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11586] setpgid(0, 0)               = 0
[pid 11586] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11586] write(3, "1000", 4)         = 4
[pid 11586] close(3)                    = 0
[pid 11586] write(1, "executing program\n", 18executing program
) = 18
[pid 11586] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11586] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11586] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11586] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11586] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11586] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11586] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11587 attached
 => {parent_tid=[11587]}, 88) = 11587
[pid 11587] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11586] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11587] <... set_robust_list resumed>) = 0
[pid 11586] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11587] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11586] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11587] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11586] <... futex resumed>)        = 0
[pid 11586] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11587] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11587] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11586] <... futex resumed>)        = 0
[pid 11586] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11586] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11587] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11587] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11586] <... futex resumed>)        = 0
[pid 11586] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11586] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11587] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11587] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11586] <... futex resumed>)        = 0
[pid 11586] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11586] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11587] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11587] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11586] <... futex resumed>)        = 0
[pid 11586] exit_group(0)               = ?
[pid 11587] +++ exited with 0 +++
[pid 11586] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11586, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11588
./strace-static-x86_64: Process 11588 attached
[pid 11588] set_robust_list(0x5555874576a0, 24) = 0
[pid 11588] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11588] setpgid(0, 0)               = 0
[pid 11588] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11588] write(3, "1000", 4)         = 4
[pid 11588] close(3)                    = 0
[pid 11588] write(1, "executing program\n", 18executing program
) = 18
[pid 11588] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11588] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11588] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11588] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11588] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11588] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11588] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11589 attached
 <unfinished ...>
[pid 11589] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11588] <... clone3 resumed> => {parent_tid=[11589]}, 88) = 11589
[pid 11589] <... set_robust_list resumed>) = 0
[pid 11588] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11589] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11588] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11589] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11588] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11588] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11589] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11589] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11588] <... futex resumed>)        = 0
[pid 11589] <... futex resumed>)        = 1
[pid 11588] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11589] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11588] <... futex resumed>)        = 0
[pid 11589] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11588] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11589] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11588] <... futex resumed>)        = 0
[pid 11588] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11588] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11589] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11589] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11588] <... futex resumed>)        = 0
[pid 11588] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11589] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11588] <... futex resumed>)        = 0
[pid 11588] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11589] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11589] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11588] <... futex resumed>)        = 0
[pid 11588] exit_group(0)               = ?
[pid 11589] +++ exited with 0 +++
[pid 11588] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11588, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11590
./strace-static-x86_64: Process 11590 attached
[pid 11590] set_robust_list(0x5555874576a0, 24) = 0
[pid 11590] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11590] setpgid(0, 0)               = 0
[pid 11590] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11590] write(3, "1000", 4)         = 4
[pid 11590] close(3)                    = 0
[pid 11590] write(1, "executing program\n", 18executing program
) = 18
[pid 11590] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11590] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11590] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11590] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11590] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11590] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11590] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11591 attached
 => {parent_tid=[11591]}, 88) = 11591
[pid 11591] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11591] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11591] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11590] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11590] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11591] <... futex resumed>)        = 0
[pid 11591] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11591] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11591] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11590] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11590] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11591] <... futex resumed>)        = 0
[pid 11591] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11591] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11591] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11590] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11590] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11591] <... futex resumed>)        = 0
[pid 11590] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11591] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11591] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11590] <... futex resumed>)        = 0
[pid 11590] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11590] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11591] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11591] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11590] <... futex resumed>)        = 0
[pid 11590] exit_group(0)               = ?
[pid 11591] +++ exited with 0 +++
[pid 11590] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11590, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11592
./strace-static-x86_64: Process 11592 attached
[pid 11592] set_robust_list(0x5555874576a0, 24) = 0
[pid 11592] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11592] setpgid(0, 0)               = 0
[pid 11592] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11592] write(3, "1000", 4)         = 4
[pid 11592] close(3)                    = 0
[pid 11592] write(1, "executing program\n", 18executing program
) = 18
[pid 11592] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11592] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11592] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11592] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11592] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11592] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11592] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11593 attached
 <unfinished ...>
[pid 11593] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11593] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11593] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11592] <... clone3 resumed> => {parent_tid=[11593]}, 88) = 11593
[pid 11592] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11592] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11593] <... futex resumed>)        = 0
[pid 11593] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11593] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11593] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11592] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11592] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11593] <... futex resumed>)        = 0
[pid 11593] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11592] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11593] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11593] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11593] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11592] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11592] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11593] <... futex resumed>)        = 0
[pid 11593] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11592] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11593] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11593] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11592] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11592] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11593] <... futex resumed>)        = 0
[pid 11592] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11593] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11593] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11592] <... futex resumed>)        = 0
[pid 11593] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11592] exit_group(0)               = ?
[pid 11593] <... futex resumed>)        = ?
[pid 11593] +++ exited with 0 +++
[pid 11592] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11592, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11594
./strace-static-x86_64: Process 11594 attached
[pid 11594] set_robust_list(0x5555874576a0, 24) = 0
[pid 11594] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11594] setpgid(0, 0)               = 0
[pid 11594] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11594] write(3, "1000", 4)         = 4
[pid 11594] close(3)                    = 0
executing program
[pid 11594] write(1, "executing program\n", 18) = 18
[pid 11594] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11594] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11594] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11594] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11594] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11594] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11594] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11595 attached
 <unfinished ...>
[pid 11595] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11595] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11595] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11594] <... clone3 resumed> => {parent_tid=[11595]}, 88) = 11595
[pid 11594] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11594] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11595] <... futex resumed>)        = 0
[pid 11595] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11594] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11595] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11595] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11595] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11594] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11594] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11595] <... futex resumed>)        = 0
[pid 11594] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11595] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11595] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11595] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11594] <... futex resumed>)        = 0
[pid 11594] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11595] <... futex resumed>)        = 0
[pid 11594] <... futex resumed>)        = 1
[pid 11595] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11594] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11595] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11595] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11595] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11594] <... futex resumed>)        = 0
[pid 11595] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11594] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11594] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11595] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11595] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11595] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11594] <... futex resumed>)        = 0
[pid 11594] exit_group(0 <unfinished ...>
[pid 11595] <... futex resumed>)        = ?
[pid 11594] <... exit_group resumed>)   = ?
[pid 11595] +++ exited with 0 +++
[pid 11594] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11594, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11596
./strace-static-x86_64: Process 11596 attached
[pid 11596] set_robust_list(0x5555874576a0, 24) = 0
[pid 11596] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11596] setpgid(0, 0)               = 0
[pid 11596] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11596] write(3, "1000", 4)         = 4
[pid 11596] close(3)                    = 0
[pid 11596] write(1, "executing program\n", 18executing program
) = 18
[pid 11596] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11596] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11596] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11596] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11596] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11596] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11596] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11597 attached
 => {parent_tid=[11597]}, 88) = 11597
[pid 11597] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11597] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11597] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11596] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11596] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11597] <... futex resumed>)        = 0
[pid 11597] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11596] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11597] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11597] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11597] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11596] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11596] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11597] <... futex resumed>)        = 0
[pid 11597] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11596] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11597] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11597] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11597] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11596] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11596] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11597] <... futex resumed>)        = 0
[pid 11597] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11597] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11597] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11596] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11596] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11596] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11597] <... futex resumed>)        = 0
[pid 11597] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11597] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11596] <... futex resumed>)        = 0
[pid 11596] exit_group(0)               = ?
[pid 11597] +++ exited with 0 +++
[pid 11596] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11596, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11598 attached
, child_tidptr=0x555587457690) = 11598
[pid 11598] set_robust_list(0x5555874576a0, 24) = 0
[pid 11598] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11598] setpgid(0, 0)               = 0
[pid 11598] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11598] write(3, "1000", 4)         = 4
[pid 11598] close(3executing program
)                    = 0
[pid 11598] write(1, "executing program\n", 18) = 18
[pid 11598] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11598] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11598] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11598] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11598] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11598] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11598] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11599 attached
 => {parent_tid=[11599]}, 88) = 11599
[pid 11599] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11598] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11598] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11598] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11599] <... set_robust_list resumed>) = 0
[pid 11599] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11599] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11599] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11598] <... futex resumed>)        = 0
[pid 11598] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11598] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11599] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11599] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11598] <... futex resumed>)        = 0
[pid 11598] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11598] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11599] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11599] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11598] <... futex resumed>)        = 0
[pid 11598] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11598] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11599] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11599] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11598] <... futex resumed>)        = 0
[pid 11598] exit_group(0)               = ?
[pid 11599] +++ exited with 0 +++
[pid 11598] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11598, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11600
./strace-static-x86_64: Process 11600 attached
[pid 11600] set_robust_list(0x5555874576a0, 24) = 0
[pid 11600] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11600] setpgid(0, 0)               = 0
[pid 11600] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11600] write(3, "1000", 4)         = 4
[pid 11600] close(3)                    = 0
[pid 11600] write(1, "executing program\n", 18executing program
) = 18
[pid 11600] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11600] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11600] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11600] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11600] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11600] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11600] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11601 attached
 <unfinished ...>
[pid 11601] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11600] <... clone3 resumed> => {parent_tid=[11601]}, 88) = 11601
[pid 11601] <... set_robust_list resumed>) = 0
[pid 11600] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11601] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11600] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11600] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11601] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11600] <... futex resumed>)        = 0
[pid 11601] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11600] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11601] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11601] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11600] <... futex resumed>)        = 0
[pid 11600] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11601] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11600] <... futex resumed>)        = 0
[pid 11600] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11601] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11601] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11600] <... futex resumed>)        = 0
[pid 11600] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11600] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11601] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11601] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11600] <... futex resumed>)        = 0
[pid 11600] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11600] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11601] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11601] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11600] <... futex resumed>)        = 0
[pid 11600] exit_group(0)               = ?
[pid 11601] +++ exited with 0 +++
[pid 11600] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11600, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11602
./strace-static-x86_64: Process 11602 attached
[pid 11602] set_robust_list(0x5555874576a0, 24) = 0
[pid 11602] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11602] setpgid(0, 0)               = 0
[pid 11602] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11602] write(3, "1000", 4)         = 4
[pid 11602] close(3)                    = 0
[pid 11602] write(1, "executing program\n", 18executing program
) = 18
[pid 11602] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11602] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11602] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11602] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11602] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11602] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11602] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11603 attached
 => {parent_tid=[11603]}, 88) = 11603
[pid 11603] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11602] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11603] <... set_robust_list resumed>) = 0
[pid 11602] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11603] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11602] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11603] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11602] <... futex resumed>)        = 0
[pid 11603] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11602] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11603] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11603] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11602] <... futex resumed>)        = 0
[pid 11602] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11602] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11603] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11603] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11602] <... futex resumed>)        = 0
[pid 11602] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11602] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11603] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11603] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11602] <... futex resumed>)        = 0
[pid 11602] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11603] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11602] <... futex resumed>)        = 0
[pid 11602] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11603] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11603] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11602] <... futex resumed>)        = 0
[pid 11602] exit_group(0)               = ?
[pid 11603] +++ exited with 0 +++
[pid 11602] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11602, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11604
./strace-static-x86_64: Process 11604 attached
[pid 11604] set_robust_list(0x5555874576a0, 24) = 0
[pid 11604] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11604] setpgid(0, 0)               = 0
[pid 11604] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11604] write(3, "1000", 4)         = 4
[pid 11604] close(3)                    = 0
[pid 11604] write(1, "executing program\n", 18executing program
) = 18
[pid 11604] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11604] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11604] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11604] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11604] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11604] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11604] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11605 attached
 => {parent_tid=[11605]}, 88) = 11605
[pid 11605] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11605] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11605] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11604] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11604] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11605] <... futex resumed>)        = 0
[pid 11605] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11605] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11605] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11604] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11604] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11605] <... futex resumed>)        = 0
[pid 11605] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11605] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11605] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11604] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11604] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11605] <... futex resumed>)        = 0
[pid 11605] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11605] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11605] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11604] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11604] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11605] <... futex resumed>)        = 0
[pid 11605] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11605] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11605] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11604] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11604] exit_group(0)               = ?
[pid 11605] <... futex resumed>)        = ?
[pid 11605] +++ exited with 0 +++
[pid 11604] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11604, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11606 attached
, child_tidptr=0x555587457690) = 11606
[pid 11606] set_robust_list(0x5555874576a0, 24) = 0
[pid 11606] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11606] setpgid(0, 0)               = 0
[pid 11606] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11606] write(3, "1000", 4)         = 4
[pid 11606] close(3)                    = 0
[pid 11606] write(1, "executing program\n", 18executing program
) = 18
[pid 11606] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11606] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11606] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11606] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11606] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11606] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11606] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11607 attached
 => {parent_tid=[11607]}, 88) = 11607
[pid 11607] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11606] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11607] <... set_robust_list resumed>) = 0
[pid 11606] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11607] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11606] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11607] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11606] <... futex resumed>)        = 0
[pid 11606] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11607] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11607] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11606] <... futex resumed>)        = 0
[pid 11606] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11606] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11607] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11607] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11606] <... futex resumed>)        = 0
[pid 11606] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11606] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11607] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11607] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11606] <... futex resumed>)        = 0
[pid 11606] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11606] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11607] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11607] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11606] <... futex resumed>)        = 0
[pid 11606] exit_group(0)               = ?
[pid 11607] +++ exited with 0 +++
[pid 11606] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11606, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11608
./strace-static-x86_64: Process 11608 attached
[pid 11608] set_robust_list(0x5555874576a0, 24) = 0
[pid 11608] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11608] setpgid(0, 0)               = 0
[pid 11608] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11608] write(3, "1000", 4)         = 4
[pid 11608] close(3)                    = 0
executing program
[pid 11608] write(1, "executing program\n", 18) = 18
[pid 11608] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11608] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11608] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11608] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11608] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11608] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11608] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11609 attached
 <unfinished ...>
[pid 11609] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11608] <... clone3 resumed> => {parent_tid=[11609]}, 88) = 11609
[pid 11609] <... set_robust_list resumed>) = 0
[pid 11608] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11609] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11608] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11609] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11608] <... futex resumed>)        = 0
[pid 11608] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11609] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11609] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11608] <... futex resumed>)        = 0
[pid 11608] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11608] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11609] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11609] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11608] <... futex resumed>)        = 0
[pid 11608] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11608] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11609] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11609] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11608] <... futex resumed>)        = 0
[pid 11608] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11608] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11609] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11609] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11608] <... futex resumed>)        = 0
[pid 11608] exit_group(0)               = ?
[pid 11609] +++ exited with 0 +++
[pid 11608] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11608, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11610
./strace-static-x86_64: Process 11610 attached
[pid 11610] set_robust_list(0x5555874576a0, 24) = 0
[pid 11610] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11610] setpgid(0, 0)               = 0
[pid 11610] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11610] write(3, "1000", 4)         = 4
[pid 11610] close(3)                    = 0
[pid 11610] write(1, "executing program\n", 18executing program
) = 18
[pid 11610] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11610] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11610] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11610] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11610] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11610] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11610] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11611 attached
 => {parent_tid=[11611]}, 88) = 11611
[pid 11611] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11611] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11611] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11610] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11610] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11611] <... futex resumed>)        = 0
[pid 11610] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11611] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11611] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11611] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11610] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11610] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11611] <... futex resumed>)        = 0
[pid 11610] <... futex resumed>)        = 1
[pid 11610] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11611] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11611] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11610] <... futex resumed>)        = 0
[pid 11610] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11610] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11611] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11611] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11610] <... futex resumed>)        = 0
[pid 11610] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11610] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11611] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11611] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11610] <... futex resumed>)        = 0
[pid 11610] exit_group(0 <unfinished ...>
[pid 11611] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11610] <... exit_group resumed>)   = ?
[pid 11611] <... futex resumed>)        = ?
[pid 11611] +++ exited with 0 +++
[pid 11610] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11610, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11612
./strace-static-x86_64: Process 11612 attached
[pid 11612] set_robust_list(0x5555874576a0, 24) = 0
[pid 11612] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11612] setpgid(0, 0)               = 0
[pid 11612] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11612] write(3, "1000", 4)         = 4
[pid 11612] close(3)                    = 0
executing program
[pid 11612] write(1, "executing program\n", 18) = 18
[pid 11612] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11612] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11612] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11612] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11612] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11612] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11612] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11613]}, 88) = 11613
[pid 11612] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11612] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11612] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11613 attached
 <unfinished ...>
[pid 11613] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11613] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11613] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11613] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11612] <... futex resumed>)        = 0
[pid 11612] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11612] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11613] <... futex resumed>)        = 1
[pid 11613] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11613] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11612] <... futex resumed>)        = 0
[pid 11612] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11612] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11613] <... futex resumed>)        = 1
[pid 11613] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11613] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11612] <... futex resumed>)        = 0
[pid 11612] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11612] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11613] <... futex resumed>)        = 1
[pid 11613] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11613] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11612] <... futex resumed>)        = 0
[pid 11612] exit_group(0)               = ?
[pid 11613] <... futex resumed>)        = ?
[pid 11613] +++ exited with 0 +++
[pid 11612] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11612, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11614
./strace-static-x86_64: Process 11614 attached
[pid 11614] set_robust_list(0x5555874576a0, 24) = 0
[pid 11614] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11614] setpgid(0, 0)               = 0
[pid 11614] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11614] write(3, "1000", 4)         = 4
[pid 11614] close(3)                    = 0
executing program
[pid 11614] write(1, "executing program\n", 18) = 18
[pid 11614] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11614] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11614] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11614] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11614] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11614] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11614] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11615 attached
 => {parent_tid=[11615]}, 88) = 11615
[pid 11615] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11614] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11615] <... set_robust_list resumed>) = 0
[pid 11615] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11615] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11614] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11614] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11615] <... futex resumed>)        = 0
[pid 11614] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11615] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11615] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11615] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11614] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11614] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11615] <... futex resumed>)        = 0
[pid 11614] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11615] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11615] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11614] <... futex resumed>)        = 0
[pid 11615] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11614] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11614] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11615] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11615] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11614] <... futex resumed>)        = 0
[pid 11614] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11615] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11614] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11615] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11614] <... futex resumed>)        = 0
[pid 11615] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11614] exit_group(0 <unfinished ...>
[pid 11615] <... futex resumed>)        = ?
[pid 11614] <... exit_group resumed>)   = ?
[pid 11615] +++ exited with 0 +++
[pid 11614] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11614, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11616
./strace-static-x86_64: Process 11616 attached
[pid 11616] set_robust_list(0x5555874576a0, 24) = 0
[pid 11616] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11616] setpgid(0, 0)               = 0
[pid 11616] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11616] write(3, "1000", 4)         = 4
[pid 11616] close(3)                    = 0
[pid 11616] write(1, "executing program\n", 18executing program
) = 18
[pid 11616] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11616] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11616] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11616] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11616] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11616] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11616] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11617]}, 88) = 11617
[pid 11616] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11616] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11616] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11617 attached
 <unfinished ...>
[pid 11617] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11617] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11617] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11617] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11616] <... futex resumed>)        = 0
[pid 11616] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11616] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11617] <... futex resumed>)        = 1
[pid 11617] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11617] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11616] <... futex resumed>)        = 0
[pid 11616] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11616] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11617] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11617] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11616] <... futex resumed>)        = 0
[pid 11616] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11616] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11617] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11617] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11616] <... futex resumed>)        = 0
[pid 11616] exit_group(0)               = ?
[pid 11617] +++ exited with 0 +++
[pid 11616] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11616, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11618
./strace-static-x86_64: Process 11618 attached
[pid 11618] set_robust_list(0x5555874576a0, 24) = 0
[pid 11618] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11618] setpgid(0, 0)               = 0
[pid 11618] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11618] write(3, "1000", 4)         = 4
[pid 11618] close(3)                    = 0
[pid 11618] write(1, "executing program\n", 18executing program
) = 18
[pid 11618] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11618] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11618] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11618] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11618] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11618] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11618] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11619 attached
 => {parent_tid=[11619]}, 88) = 11619
[pid 11619] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11619] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11619] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11618] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11618] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11619] <... futex resumed>)        = 0
[pid 11619] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11619] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11619] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11618] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11618] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11619] <... futex resumed>)        = 0
[pid 11619] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11619] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11619] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11618] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11618] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11619] <... futex resumed>)        = 0
[pid 11619] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11619] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11619] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11618] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11618] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11619] <... futex resumed>)        = 0
[pid 11619] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11619] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11619] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11618] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11618] exit_group(0)               = ?
[pid 11619] <... futex resumed>)        = ?
[pid 11619] +++ exited with 0 +++
[pid 11618] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11618, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11620
./strace-static-x86_64: Process 11620 attached
[pid 11620] set_robust_list(0x5555874576a0, 24) = 0
[pid 11620] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11620] setpgid(0, 0)               = 0
[pid 11620] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11620] write(3, "1000", 4)         = 4
[pid 11620] close(3)                    = 0
[pid 11620] write(1, "executing program\n", 18executing program
) = 18
[pid 11620] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11620] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11620] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11620] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11620] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11620] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11620] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11621]}, 88) = 11621
./strace-static-x86_64: Process 11621 attached
[pid 11620] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11620] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11620] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11621] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11621] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11621] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11621] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11620] <... futex resumed>)        = 0
[pid 11620] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11620] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11621] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11621] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11620] <... futex resumed>)        = 0
[pid 11620] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11620] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11621] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11621] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11620] <... futex resumed>)        = 0
[pid 11620] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11620] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11621] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11621] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11620] <... futex resumed>)        = 0
[pid 11620] exit_group(0)               = ?
[pid 11621] +++ exited with 0 +++
[pid 11620] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11620, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11622
./strace-static-x86_64: Process 11622 attached
[pid 11622] set_robust_list(0x5555874576a0, 24) = 0
[pid 11622] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11622] setpgid(0, 0)               = 0
[pid 11622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11622] write(3, "1000", 4)         = 4
[pid 11622] close(3)                    = 0
[pid 11622] write(1, "executing program\n", 18executing program
) = 18
[pid 11622] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11622] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11622] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11622] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11622] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11622] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11623 attached
 => {parent_tid=[11623]}, 88) = 11623
[pid 11623] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11623] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11623] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11622] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11622] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11623] <... futex resumed>)        = 0
[pid 11622] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11623] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11623] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11623] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11622] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11622] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11623] <... futex resumed>)        = 0
[pid 11623] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11623] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11623] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11622] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11622] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11623] <... futex resumed>)        = 0
[pid 11623] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11622] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11623] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11622] <... futex resumed>)        = 0
[pid 11622] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11622] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11623] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11623] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11622] <... futex resumed>)        = 0
[pid 11622] exit_group(0)               = ?
[pid 11623] +++ exited with 0 +++
[pid 11622] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11622, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11624
./strace-static-x86_64: Process 11624 attached
[pid 11624] set_robust_list(0x5555874576a0, 24) = 0
[pid 11624] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11624] setpgid(0, 0)               = 0
[pid 11624] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11624] write(3, "1000", 4)         = 4
[pid 11624] close(3)                    = 0
[pid 11624] write(1, "executing program\n", 18executing program
) = 18
[pid 11624] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11624] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11624] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11624] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11624] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11624] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11624] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11625 attached
 <unfinished ...>
[pid 11625] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11624] <... clone3 resumed> => {parent_tid=[11625]}, 88) = 11625
[pid 11625] <... set_robust_list resumed>) = 0
[pid 11624] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11625] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11624] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11625] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11624] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11625] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11624] <... futex resumed>)        = 0
[pid 11625] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11624] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11625] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11624] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11625] <... futex resumed>)        = 0
[pid 11624] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11625] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11624] <... futex resumed>)        = 0
[pid 11625] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11624] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11625] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11624] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11625] <... futex resumed>)        = 0
[pid 11624] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11625] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11624] <... futex resumed>)        = 0
[pid 11625] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11624] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11625] <... futex resumed>)        = 0
[pid 11624] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11625] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11624] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11624] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11625] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11625] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11624] <... futex resumed>)        = 0
[pid 11624] exit_group(0)               = ?
[pid 11625] +++ exited with 0 +++
[pid 11624] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11624, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11626
./strace-static-x86_64: Process 11626 attached
[pid 11626] set_robust_list(0x5555874576a0, 24) = 0
[pid 11626] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11626] setpgid(0, 0)               = 0
[pid 11626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11626] write(3, "1000", 4)         = 4
[pid 11626] close(3)                    = 0
[pid 11626] write(1, "executing program\n", 18executing program
) = 18
[pid 11626] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11626] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11626] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11626] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11626] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11626] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11626] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11627 attached
 => {parent_tid=[11627]}, 88) = 11627
[pid 11627] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11627] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11627] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11626] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11626] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11627] <... futex resumed>)        = 0
[pid 11627] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11627] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11627] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11626] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11626] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11627] <... futex resumed>)        = 0
[pid 11627] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11627] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11627] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11626] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11626] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11627] <... futex resumed>)        = 0
[pid 11627] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11627] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11627] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11626] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11626] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11627] <... futex resumed>)        = 0
[pid 11627] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11626] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11627] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11627] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11627] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11626] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11626] exit_group(0)               = ?
[pid 11627] <... futex resumed>)        = ?
[pid 11627] +++ exited with 0 +++
[pid 11626] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11626, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11628
./strace-static-x86_64: Process 11628 attached
[pid 11628] set_robust_list(0x5555874576a0, 24) = 0
[pid 11628] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11628] setpgid(0, 0)               = 0
[pid 11628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11628] write(3, "1000", 4)         = 4
executing program
[pid 11628] close(3)                    = 0
[pid 11628] write(1, "executing program\n", 18) = 18
[pid 11628] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11628] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11628] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11628] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11628] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11628] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11628] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11629]}, 88) = 11629
./strace-static-x86_64: Process 11629 attached
[pid 11629] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11629] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11628] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11629] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11628] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11628] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11629] <... futex resumed>)        = 0
[pid 11629] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11628] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11629] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11629] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11628] <... futex resumed>)        = 0
[pid 11628] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11628] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11629] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11629] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11628] <... futex resumed>)        = 0
[pid 11628] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11628] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11629] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11629] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11628] <... futex resumed>)        = 0
[pid 11628] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11628] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11629] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11629] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11628] <... futex resumed>)        = 0
[pid 11628] exit_group(0)               = ?
[pid 11629] +++ exited with 0 +++
[pid 11628] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11628, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11630
./strace-static-x86_64: Process 11630 attached
[pid 11630] set_robust_list(0x5555874576a0, 24) = 0
[pid 11630] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11630] setpgid(0, 0)               = 0
[pid 11630] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11630] write(3, "1000", 4)         = 4
[pid 11630] close(3executing program
)                    = 0
[pid 11630] write(1, "executing program\n", 18) = 18
[pid 11630] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11630] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11630] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11630] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11630] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11630] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11630] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11631]}, 88) = 11631
./strace-static-x86_64: Process 11631 attached
[pid 11630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11630] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11630] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11631] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11631] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11631] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11631] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11630] <... futex resumed>)        = 0
[pid 11630] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11630] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11631] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11631] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11630] <... futex resumed>)        = 0
[pid 11630] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11630] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11631] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11631] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11630] <... futex resumed>)        = 0
[pid 11630] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11630] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11631] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11631] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11630] <... futex resumed>)        = 0
[pid 11630] exit_group(0)               = ?
[pid 11631] +++ exited with 0 +++
[pid 11630] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11630, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11632
./strace-static-x86_64: Process 11632 attached
[pid 11632] set_robust_list(0x5555874576a0, 24) = 0
[pid 11632] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11632] setpgid(0, 0)               = 0
[pid 11632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11632] write(3, "1000", 4)         = 4
[pid 11632] close(3)                    = 0
[pid 11632] write(1, "executing program\n", 18executing program
) = 18
[pid 11632] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11632] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11632] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11632] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11632] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11632] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11632] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11633 attached
 => {parent_tid=[11633]}, 88) = 11633
[pid 11633] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11632] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11633] <... set_robust_list resumed>) = 0
[pid 11632] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11633] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11632] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11633] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11632] <... futex resumed>)        = 0
[pid 11632] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11633] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11633] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11632] <... futex resumed>)        = 0
[pid 11632] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11632] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11633] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11633] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11632] <... futex resumed>)        = 0
[pid 11632] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11633] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11632] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11633] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11633] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11632] <... futex resumed>)        = 0
[pid 11632] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11632] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11633] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11633] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11632] <... futex resumed>)        = 0
[pid 11632] exit_group(0 <unfinished ...>
[pid 11633] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11632] <... exit_group resumed>)   = ?
[pid 11633] <... futex resumed>)        = ?
[pid 11633] +++ exited with 0 +++
[pid 11632] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11632, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11634
./strace-static-x86_64: Process 11634 attached
[pid 11634] set_robust_list(0x5555874576a0, 24) = 0
[pid 11634] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11634] setpgid(0, 0)               = 0
[pid 11634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11634] write(3, "1000", 4)         = 4
[pid 11634] close(3executing program
)                    = 0
[pid 11634] write(1, "executing program\n", 18) = 18
[pid 11634] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11634] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11634] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11634] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11634] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11634] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11634] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11635]}, 88) = 11635
./strace-static-x86_64: Process 11635 attached
[pid 11634] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11635] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11635] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11635] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11634] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11634] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11634] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11635] <... futex resumed>)        = 0
[pid 11635] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11635] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11634] <... futex resumed>)        = 0
[pid 11634] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11634] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11635] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11635] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11634] <... futex resumed>)        = 0
[pid 11634] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11634] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11635] <... futex resumed>)        = 1
[pid 11635] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11635] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11634] <... futex resumed>)        = 0
[pid 11634] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11634] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11635] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11635] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11634] <... futex resumed>)        = 0
[pid 11634] exit_group(0)               = ?
[pid 11635] +++ exited with 0 +++
[pid 11634] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11634, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11636 attached
, child_tidptr=0x555587457690) = 11636
[pid 11636] set_robust_list(0x5555874576a0, 24) = 0
[pid 11636] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11636] setpgid(0, 0)               = 0
[pid 11636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11636] write(3, "1000", 4)         = 4
[pid 11636] close(3)                    = 0
[pid 11636] write(1, "executing program\n", 18executing program
) = 18
[pid 11636] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11636] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11636] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11636] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11636] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11636] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11636] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11637 attached
 => {parent_tid=[11637]}, 88) = 11637
[pid 11637] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11637] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11637] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11636] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11636] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11637] <... futex resumed>)        = 0
[pid 11637] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11637] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11637] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11636] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11636] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11637] <... futex resumed>)        = 0
[pid 11637] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11636] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11637] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11636] <... futex resumed>)        = 0
[pid 11636] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11636] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11637] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11637] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11636] <... futex resumed>)        = 0
[pid 11636] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11636] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11637] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11637] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11636] <... futex resumed>)        = 0
[pid 11636] exit_group(0)               = ?
[pid 11637] +++ exited with 0 +++
[pid 11636] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11636, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11638
./strace-static-x86_64: Process 11638 attached
[pid 11638] set_robust_list(0x5555874576a0, 24) = 0
[pid 11638] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11638] setpgid(0, 0)               = 0
[pid 11638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11638] write(3, "1000", 4)         = 4
[pid 11638] close(3)                    = 0
[pid 11638] write(1, "executing program\n", 18executing program
) = 18
[pid 11638] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11638] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11638] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11638] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11638] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11638] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11638] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11639 attached
 => {parent_tid=[11639]}, 88) = 11639
[pid 11639] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11639] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11639] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11638] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11638] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11639] <... futex resumed>)        = 0
[pid 11639] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11638] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11639] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11639] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11639] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11638] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11638] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11639] <... futex resumed>)        = 0
[pid 11639] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11639] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11639] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11638] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11638] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11639] <... futex resumed>)        = 0
[pid 11639] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11639] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11639] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11638] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11638] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11639] <... futex resumed>)        = 0
[pid 11639] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11639] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11639] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11638] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11638] exit_group(0)               = ?
[pid 11639] <... futex resumed>)        = ?
[pid 11639] +++ exited with 0 +++
[pid 11638] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11638, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11640
./strace-static-x86_64: Process 11640 attached
[pid 11640] set_robust_list(0x5555874576a0, 24) = 0
[pid 11640] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11640] setpgid(0, 0)               = 0
[pid 11640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11640] write(3, "1000", 4)         = 4
[pid 11640] close(3)                    = 0
executing program
[pid 11640] write(1, "executing program\n", 18) = 18
[pid 11640] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11640] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11640] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11640] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11640] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11640] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11640] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11641 attached
 => {parent_tid=[11641]}, 88) = 11641
[pid 11640] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11640] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11640] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11641] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11641] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11641] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11641] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11640] <... futex resumed>)        = 0
[pid 11640] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11640] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11641] <... futex resumed>)        = 1
[pid 11641] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11641] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11640] <... futex resumed>)        = 0
[pid 11640] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11640] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11641] <... futex resumed>)        = 1
[pid 11641] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11641] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11640] <... futex resumed>)        = 0
[pid 11640] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11640] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11641] <... futex resumed>)        = 1
[pid 11641] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11641] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11640] <... futex resumed>)        = 0
[pid 11640] exit_group(0)               = ?
[pid 11641] +++ exited with 0 +++
[pid 11640] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11640, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11642
./strace-static-x86_64: Process 11642 attached
[pid 11642] set_robust_list(0x5555874576a0, 24) = 0
[pid 11642] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11642] setpgid(0, 0)               = 0
[pid 11642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11642] write(3, "1000", 4executing program
)         = 4
[pid 11642] close(3)                    = 0
[pid 11642] write(1, "executing program\n", 18) = 18
[pid 11642] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11642] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11642] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11642] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11642] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11642] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11642] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11643 attached
 => {parent_tid=[11643]}, 88) = 11643
[pid 11642] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11643] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11642] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11643] <... set_robust_list resumed>) = 0
[pid 11642] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11643] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11642] <... futex resumed>)        = 0
[pid 11643] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11643] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11642] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11643] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11643] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11642] <... futex resumed>)        = 0
[pid 11642] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11642] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11643] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11643] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11642] <... futex resumed>)        = 0
[pid 11642] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11642] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11643] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11643] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11642] <... futex resumed>)        = 0
[pid 11642] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11642] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11643] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11643] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11642] <... futex resumed>)        = 0
[pid 11642] exit_group(0)               = ?
[pid 11643] +++ exited with 0 +++
[pid 11642] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11642, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11644
./strace-static-x86_64: Process 11644 attached
[pid 11644] set_robust_list(0x5555874576a0, 24) = 0
[pid 11644] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11644] setpgid(0, 0)               = 0
[pid 11644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11644] write(3, "1000", 4)         = 4
[pid 11644] close(3executing program
)                    = 0
[pid 11644] write(1, "executing program\n", 18) = 18
[pid 11644] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11644] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11644] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11644] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11644] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11644] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11644] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11645]}, 88) = 11645
[pid 11644] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11644] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11644] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11645 attached
 <unfinished ...>
[pid 11645] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11645] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11645] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11645] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11644] <... futex resumed>)        = 0
[pid 11644] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11644] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11645] <... futex resumed>)        = 1
[pid 11645] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11645] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11644] <... futex resumed>)        = 0
[pid 11644] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11644] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11645] <... futex resumed>)        = 1
[pid 11645] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11645] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11644] <... futex resumed>)        = 0
[pid 11644] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11644] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11645] <... futex resumed>)        = 1
[pid 11645] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11645] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11644] <... futex resumed>)        = 0
[pid 11644] exit_group(0)               = ?
[pid 11645] <... futex resumed>)        = ?
[pid 11645] +++ exited with 0 +++
[pid 11644] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11644, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11646
./strace-static-x86_64: Process 11646 attached
[pid 11646] set_robust_list(0x5555874576a0, 24) = 0
[pid 11646] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11646] setpgid(0, 0)               = 0
[pid 11646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11646] write(3, "1000", 4)         = 4
[pid 11646] close(3)                    = 0
[pid 11646] write(1, "executing program\n", 18executing program
) = 18
[pid 11646] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11646] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11646] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11646] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11646] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11646] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11646] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11647 attached
 => {parent_tid=[11647]}, 88) = 11647
[pid 11647] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11646] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11647] <... set_robust_list resumed>) = 0
[pid 11647] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11647] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11646] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11646] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11647] <... futex resumed>)        = 0
[pid 11646] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11647] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11647] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11646] <... futex resumed>)        = 0
[pid 11647] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11646] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11647] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11646] <... futex resumed>)        = 0
[pid 11647] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11646] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11647] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11647] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11647] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11646] <... futex resumed>)        = 0
[pid 11647] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11646] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11647] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11646] <... futex resumed>)        = 0
[pid 11646] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11647] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11647] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11646] <... futex resumed>)        = 0
[pid 11647] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11646] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11647] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11646] <... futex resumed>)        = 0
[pid 11646] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11647] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11647] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11646] <... futex resumed>)        = 0
[pid 11647] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11646] exit_group(0 <unfinished ...>
[pid 11647] <... futex resumed>)        = ?
[pid 11646] <... exit_group resumed>)   = ?
[pid 11647] +++ exited with 0 +++
[pid 11646] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11646, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11648
./strace-static-x86_64: Process 11648 attached
[pid 11648] set_robust_list(0x5555874576a0, 24) = 0
[pid 11648] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11648] setpgid(0, 0)               = 0
[pid 11648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11648] write(3, "1000", 4)         = 4
[pid 11648] close(3)                    = 0
[pid 11648] write(1, "executing program\n", 18executing program
) = 18
[pid 11648] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11648] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11648] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11648] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11648] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11648] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11648] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11649 attached
 => {parent_tid=[11649]}, 88) = 11649
[pid 11648] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11648] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11648] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11649] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11649] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11649] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11649] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11648] <... futex resumed>)        = 0
[pid 11648] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11648] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11649] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11649] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11648] <... futex resumed>)        = 0
[pid 11648] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11648] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11649] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11649] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11648] <... futex resumed>)        = 0
[pid 11648] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11648] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11649] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11649] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11648] <... futex resumed>)        = 0
[pid 11648] exit_group(0)               = ?
[pid 11649] +++ exited with 0 +++
[pid 11648] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11648, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11650
./strace-static-x86_64: Process 11650 attached
[pid 11650] set_robust_list(0x5555874576a0, 24) = 0
[pid 11650] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11650] setpgid(0, 0)               = 0
[pid 11650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11650] write(3, "1000", 4)         = 4
[pid 11650] close(3)                    = 0
[pid 11650] write(1, "executing program\n", 18executing program
) = 18
[pid 11650] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11650] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11650] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11650] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11650] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11650] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11650] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11651 attached
 <unfinished ...>
[pid 11651] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11651] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11651] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11650] <... clone3 resumed> => {parent_tid=[11651]}, 88) = 11651
[pid 11650] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11650] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11651] <... futex resumed>)        = 0
[pid 11651] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11651] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11651] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11650] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11650] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11651] <... futex resumed>)        = 0
[pid 11651] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11651] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11651] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11650] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11650] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11651] <... futex resumed>)        = 0
[pid 11651] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11651] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11651] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11650] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11650] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11651] <... futex resumed>)        = 0
[pid 11651] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11650] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11651] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11651] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11651] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11650] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11650] exit_group(0 <unfinished ...>
[pid 11651] <... futex resumed>)        = ?
[pid 11650] <... exit_group resumed>)   = ?
[pid 11651] +++ exited with 0 +++
[pid 11650] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11650, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11652
./strace-static-x86_64: Process 11652 attached
[pid 11652] set_robust_list(0x5555874576a0, 24) = 0
[pid 11652] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11652] setpgid(0, 0)               = 0
[pid 11652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11652] write(3, "1000", 4)         = 4
[pid 11652] close(3)                    = 0
executing program
[pid 11652] write(1, "executing program\n", 18) = 18
[pid 11652] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11652] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11652] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11652] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11652] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11652] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11652] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11653 attached
 <unfinished ...>
[pid 11653] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11653] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11653] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11652] <... clone3 resumed> => {parent_tid=[11653]}, 88) = 11653
[pid 11652] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11652] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11653] <... futex resumed>)        = 0
[pid 11653] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11652] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11653] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11653] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11652] <... futex resumed>)        = 0
[pid 11653] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11652] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11653] <... futex resumed>)        = 0
[pid 11653] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11652] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11653] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11653] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11652] <... futex resumed>)        = 0
[pid 11652] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11652] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11653] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11653] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11652] <... futex resumed>)        = 0
[pid 11652] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11652] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11653] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11653] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11652] <... futex resumed>)        = 0
[pid 11652] exit_group(0)               = ?
[pid 11653] +++ exited with 0 +++
[pid 11652] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11652, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11654 attached
, child_tidptr=0x555587457690) = 11654
[pid 11654] set_robust_list(0x5555874576a0, 24) = 0
[pid 11654] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11654] setpgid(0, 0)               = 0
[pid 11654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11654] write(3, "1000", 4)         = 4
[pid 11654] close(3executing program
)                    = 0
[pid 11654] write(1, "executing program\n", 18) = 18
[pid 11654] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11654] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11654] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11654] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11654] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11654] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11654] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11655 attached
 => {parent_tid=[11655]}, 88) = 11655
[pid 11654] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11654] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11654] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11655] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11655] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11655] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11655] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11654] <... futex resumed>)        = 0
[pid 11654] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11654] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11655] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11655] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11654] <... futex resumed>)        = 0
[pid 11654] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11654] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11655] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11655] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11654] <... futex resumed>)        = 0
[pid 11654] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11654] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11655] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11655] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11655] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11654] <... futex resumed>)        = 0
[pid 11654] exit_group(0)               = ?
[pid 11655] <... futex resumed>)        = ?
[pid 11655] +++ exited with 0 +++
[pid 11654] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11654, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11656 attached
, child_tidptr=0x555587457690) = 11656
[pid 11656] set_robust_list(0x5555874576a0, 24) = 0
[pid 11656] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11656] setpgid(0, 0)               = 0
[pid 11656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
executing program
[pid 11656] write(3, "1000", 4)         = 4
[pid 11656] close(3)                    = 0
[pid 11656] write(1, "executing program\n", 18) = 18
[pid 11656] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11656] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11656] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11656] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11656] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11656] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11656] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11657]}, 88) = 11657
[pid 11656] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11656] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11656] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11657 attached
 <unfinished ...>
[pid 11657] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11657] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11657] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11657] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11656] <... futex resumed>)        = 0
[pid 11657] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11656] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11657] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11656] <... futex resumed>)        = 0
[pid 11656] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11657] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11656] <... futex resumed>)        = 0
[pid 11657] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11656] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11657] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11656] <... futex resumed>)        = 0
[pid 11657] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11656] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11657] <... futex resumed>)        = 0
[pid 11656] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11657] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11656] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11657] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11656] <... futex resumed>)        = 0
[pid 11657] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11656] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11657] <... futex resumed>)        = 0
[pid 11656] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11657] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11656] exit_group(0 <unfinished ...>
[pid 11657] <... futex resumed>)        = ?
[pid 11656] <... exit_group resumed>)   = ?
[pid 11657] +++ exited with 0 +++
[pid 11656] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11656, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11658
./strace-static-x86_64: Process 11658 attached
[pid 11658] set_robust_list(0x5555874576a0, 24) = 0
[pid 11658] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11658] setpgid(0, 0)               = 0
[pid 11658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11658] write(3, "1000", 4)         = 4
[pid 11658] close(3)                    = 0
executing program
[pid 11658] write(1, "executing program\n", 18) = 18
[pid 11658] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11658] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11658] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11658] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11658] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11658] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11658] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11659 attached
 => {parent_tid=[11659]}, 88) = 11659
[pid 11659] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11659] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11659] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11658] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11658] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11659] <... futex resumed>)        = 0
[pid 11658] <... futex resumed>)        = 1
[pid 11659] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11659] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11659] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11658] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11658] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11659] <... futex resumed>)        = 0
[pid 11658] <... futex resumed>)        = 1
[pid 11659] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11659] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11659] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11658] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11658] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11659] <... futex resumed>)        = 0
[pid 11658] <... futex resumed>)        = 1
[pid 11659] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11658] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11659] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11659] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11658] <... futex resumed>)        = 0
[pid 11659] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11658] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11659] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11658] <... futex resumed>)        = 0
[pid 11659] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11658] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11659] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11659] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11658] <... futex resumed>)        = 0
[pid 11659] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11658] exit_group(0 <unfinished ...>
[pid 11659] <... futex resumed>)        = ?
[pid 11658] <... exit_group resumed>)   = ?
[pid 11659] +++ exited with 0 +++
[pid 11658] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11658, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11660 attached
, child_tidptr=0x555587457690) = 11660
[pid 11660] set_robust_list(0x5555874576a0, 24) = 0
[pid 11660] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11660] setpgid(0, 0)               = 0
[pid 11660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11660] write(3, "1000", 4)         = 4
[pid 11660] close(3)                    = 0
[pid 11660] write(1, "executing program\n", 18executing program
) = 18
[pid 11660] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11660] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11660] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11660] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11660] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11660] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11660] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11661 attached
 => {parent_tid=[11661]}, 88) = 11661
[pid 11660] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11660] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11660] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11661] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11661] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11661] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11661] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11660] <... futex resumed>)        = 0
[pid 11660] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11660] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11661] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11661] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11660] <... futex resumed>)        = 0
[pid 11660] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11660] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11661] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11661] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11660] <... futex resumed>)        = 0
[pid 11660] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11660] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11661] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11661] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11660] <... futex resumed>)        = 0
[pid 11660] exit_group(0 <unfinished ...>
[pid 11661] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11660] <... exit_group resumed>)   = ?
[pid 11661] <... futex resumed>)        = ?
[pid 11661] +++ exited with 0 +++
[pid 11660] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11660, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11662
./strace-static-x86_64: Process 11662 attached
[pid 11662] set_robust_list(0x5555874576a0, 24) = 0
[pid 11662] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11662] setpgid(0, 0)               = 0
[pid 11662] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11662] write(3, "1000", 4)         = 4
[pid 11662] close(3)                    = 0
[pid 11662] write(1, "executing program\n", 18executing program
) = 18
[pid 11662] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11662] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11662] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11662] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11662] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11662] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11662] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11663]}, 88) = 11663
[pid 11662] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11662] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11662] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11663 attached
 <unfinished ...>
[pid 11663] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11663] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11663] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11663] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11662] <... futex resumed>)        = 0
[pid 11662] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11662] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11663] <... futex resumed>)        = 1
[pid 11663] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11663] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11662] <... futex resumed>)        = 0
[pid 11662] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11662] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11663] <... futex resumed>)        = 1
[pid 11663] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11663] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11662] <... futex resumed>)        = 0
[pid 11662] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11662] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11663] <... futex resumed>)        = 1
[pid 11663] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11663] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11662] <... futex resumed>)        = 0
[pid 11662] exit_group(0)               = ?
[pid 11663] <... futex resumed>)        = ?
[pid 11663] +++ exited with 0 +++
[pid 11662] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11662, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11664 attached
, child_tidptr=0x555587457690) = 11664
[pid 11664] set_robust_list(0x5555874576a0, 24) = 0
[pid 11664] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11664] setpgid(0, 0)               = 0
[pid 11664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11664] write(3, "1000", 4)         = 4
[pid 11664] close(3)                    = 0
executing program
[pid 11664] write(1, "executing program\n", 18) = 18
[pid 11664] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11664] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11664] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11664] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11664] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11664] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11664] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11665]}, 88) = 11665
./strace-static-x86_64: Process 11665 attached
[pid 11664] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11664] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11664] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11665] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11665] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11665] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11665] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11664] <... futex resumed>)        = 0
[pid 11664] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11664] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11665] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11665] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11664] <... futex resumed>)        = 0
[pid 11664] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11664] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11665] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11665] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11664] <... futex resumed>)        = 0
[pid 11664] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11664] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11665] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11665] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11664] <... futex resumed>)        = 0
[pid 11664] exit_group(0)               = ?
[pid 11665] +++ exited with 0 +++
[pid 11664] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11664, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11666
./strace-static-x86_64: Process 11666 attached
[pid 11666] set_robust_list(0x5555874576a0, 24) = 0
[pid 11666] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11666] setpgid(0, 0)               = 0
[pid 11666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11666] write(3, "1000", 4)         = 4
[pid 11666] close(3executing program
)                    = 0
[pid 11666] write(1, "executing program\n", 18) = 18
[pid 11666] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11666] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11666] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11666] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11666] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11666] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11666] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11667]}, 88) = 11667
./strace-static-x86_64: Process 11667 attached
[pid 11666] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11666] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11666] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11667] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11667] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11667] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11667] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11666] <... futex resumed>)        = 0
[pid 11666] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11666] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11667] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11667] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11666] <... futex resumed>)        = 0
[pid 11666] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11666] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11667] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11667] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11666] <... futex resumed>)        = 0
[pid 11666] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11666] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11667] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11667] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11666] <... futex resumed>)        = 0
[pid 11666] exit_group(0)               = ?
[pid 11667] +++ exited with 0 +++
[pid 11666] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11666, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11668
./strace-static-x86_64: Process 11668 attached
[pid 11668] set_robust_list(0x5555874576a0, 24) = 0
[pid 11668] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11668] setpgid(0, 0)               = 0
[pid 11668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11668] write(3, "1000", 4)         = 4
[pid 11668] close(3)                    = 0
[pid 11668] write(1, "executing program\n", 18executing program
) = 18
[pid 11668] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11668] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11668] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11668] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11668] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11668] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11668] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11669 attached
 => {parent_tid=[11669]}, 88) = 11669
[pid 11669] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11669] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11669] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11668] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11668] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11669] <... futex resumed>)        = 0
[pid 11669] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11669] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11669] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11668] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11668] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11669] <... futex resumed>)        = 0
[pid 11669] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11669] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11669] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11668] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11668] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11669] <... futex resumed>)        = 0
[pid 11669] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11668] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11669] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11669] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11669] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11668] <... futex resumed>)        = 0
[pid 11668] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11669] <... futex resumed>)        = 0
[pid 11669] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11668] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11669] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11669] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11669] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11668] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11668] exit_group(0)               = ?
[pid 11669] <... futex resumed>)        = ?
[pid 11669] +++ exited with 0 +++
[pid 11668] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11668, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11670
./strace-static-x86_64: Process 11670 attached
[pid 11670] set_robust_list(0x5555874576a0, 24) = 0
[pid 11670] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11670] setpgid(0, 0)               = 0
[pid 11670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11670] write(3, "1000", 4)         = 4
[pid 11670] close(3)                    = 0
[pid 11670] write(1, "executing program\n", 18executing program
) = 18
[pid 11670] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11670] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11670] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11670] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11670] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11670] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11670] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11671 attached
 <unfinished ...>
[pid 11671] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11671] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11671] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11670] <... clone3 resumed> => {parent_tid=[11671]}, 88) = 11671
[pid 11670] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11670] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11671] <... futex resumed>)        = 0
[pid 11671] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11671] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11671] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11670] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11670] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11671] <... futex resumed>)        = 0
[pid 11671] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11671] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11671] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11670] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11670] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11671] <... futex resumed>)        = 0
[pid 11671] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11671] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11671] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11670] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11670] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11671] <... futex resumed>)        = 0
[pid 11671] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11671] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11671] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11670] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11670] exit_group(0)               = ?
[pid 11671] <... futex resumed>)        = ?
[pid 11671] +++ exited with 0 +++
[pid 11670] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11670, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11672
./strace-static-x86_64: Process 11672 attached
[pid 11672] set_robust_list(0x5555874576a0, 24) = 0
[pid 11672] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11672] setpgid(0, 0)               = 0
[pid 11672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11672] write(3, "1000", 4)         = 4
executing program
[pid 11672] close(3)                    = 0
[pid 11672] write(1, "executing program\n", 18) = 18
[pid 11672] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11672] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11672] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11672] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11672] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11672] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11672] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11673 attached
 => {parent_tid=[11673]}, 88) = 11673
[pid 11672] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11672] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11672] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11673] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11673] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11673] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11673] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11672] <... futex resumed>)        = 0
[pid 11672] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11672] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11673] <... futex resumed>)        = 1
[pid 11673] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11673] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11672] <... futex resumed>)        = 0
[pid 11672] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11672] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11673] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11673] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11672] <... futex resumed>)        = 0
[pid 11672] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11672] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11673] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11673] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11672] <... futex resumed>)        = 0
[pid 11672] exit_group(0)               = ?
[pid 11673] +++ exited with 0 +++
[pid 11672] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11672, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11674
./strace-static-x86_64: Process 11674 attached
[pid 11674] set_robust_list(0x5555874576a0, 24) = 0
[pid 11674] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11674] setpgid(0, 0)               = 0
[pid 11674] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11674] write(3, "1000", 4)         = 4
[pid 11674] close(3)                    = 0
[pid 11674] write(1, "executing program\n", 18executing program
) = 18
[pid 11674] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11674] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11674] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11674] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11674] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11674] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11674] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11675 attached
 => {parent_tid=[11675]}, 88) = 11675
[pid 11675] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11675] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11675] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11674] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11674] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11675] <... futex resumed>)        = 0
[pid 11675] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11675] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11675] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11674] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11674] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11675] <... futex resumed>)        = 0
[pid 11675] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11675] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11675] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11674] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11674] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11675] <... futex resumed>)        = 0
[pid 11675] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11675] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11675] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11674] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11674] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11675] <... futex resumed>)        = 0
[pid 11674] <... futex resumed>)        = 1
[pid 11675] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11675] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11675] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11674] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11674] exit_group(0)               = ?
[pid 11675] <... futex resumed>)        = ?
[pid 11675] +++ exited with 0 +++
[pid 11674] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11674, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11676
./strace-static-x86_64: Process 11676 attached
[pid 11676] set_robust_list(0x5555874576a0, 24) = 0
[pid 11676] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11676] setpgid(0, 0)               = 0
[pid 11676] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11676] write(3, "1000", 4)         = 4
[pid 11676] close(3)                    = 0
executing program
[pid 11676] write(1, "executing program\n", 18) = 18
[pid 11676] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11676] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11676] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11676] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11676] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11676] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11676] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11677]}, 88) = 11677
./strace-static-x86_64: Process 11677 attached
[pid 11677] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11677] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11677] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11676] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11676] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11677] <... futex resumed>)        = 0
[pid 11677] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11677] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11677] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11676] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11676] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11677] <... futex resumed>)        = 0
[pid 11677] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11677] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11677] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11676] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11676] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11677] <... futex resumed>)        = 0
[pid 11677] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11677] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11677] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11676] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11676] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11677] <... futex resumed>)        = 0
[pid 11677] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11676] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11677] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11677] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11677] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11676] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11676] exit_group(0)               = ?
[pid 11677] <... futex resumed>)        = ?
[pid 11677] +++ exited with 0 +++
[pid 11676] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11676, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11678 attached
, child_tidptr=0x555587457690) = 11678
[pid 11678] set_robust_list(0x5555874576a0, 24) = 0
[pid 11678] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11678] setpgid(0, 0)               = 0
[pid 11678] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11678] write(3, "1000", 4)         = 4
[pid 11678] close(3)                    = 0
executing program
[pid 11678] write(1, "executing program\n", 18) = 18
[pid 11678] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11678] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11678] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11678] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11678] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11678] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11678] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11679 attached
 => {parent_tid=[11679]}, 88) = 11679
[pid 11678] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11678] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11678] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11679] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11679] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11679] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11679] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11678] <... futex resumed>)        = 0
[pid 11678] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11678] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11679] <... futex resumed>)        = 1
[pid 11679] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11679] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11678] <... futex resumed>)        = 0
[pid 11678] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11678] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11679] <... futex resumed>)        = 1
[pid 11679] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11679] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11678] <... futex resumed>)        = 0
[pid 11678] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11678] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11679] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11679] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11678] <... futex resumed>)        = 0
[pid 11678] exit_group(0)               = ?
[pid 11679] +++ exited with 0 +++
[pid 11678] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11678, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11680
./strace-static-x86_64: Process 11680 attached
[pid 11680] set_robust_list(0x5555874576a0, 24) = 0
[pid 11680] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11680] setpgid(0, 0)               = 0
[pid 11680] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11680] write(3, "1000", 4executing program
)         = 4
[pid 11680] close(3)                    = 0
[pid 11680] write(1, "executing program\n", 18) = 18
[pid 11680] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11680] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11680] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11680] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11680] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11680] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11680] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11681 attached
 <unfinished ...>
[pid 11681] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11681] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11680] <... clone3 resumed> => {parent_tid=[11681]}, 88) = 11681
[pid 11681] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11680] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11680] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11681] <... futex resumed>)        = 0
[pid 11680] <... futex resumed>)        = 1
[pid 11681] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11680] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11681] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11681] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11680] <... futex resumed>)        = 0
[pid 11681] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11680] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11681] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11680] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11681] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11680] <... futex resumed>)        = 0
[pid 11681] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11680] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11681] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11680] <... futex resumed>)        = 0
[pid 11681] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11680] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11681] <... futex resumed>)        = 0
[pid 11680] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11681] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11680] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11681] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11680] <... futex resumed>)        = 0
[pid 11681] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11680] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11681] <... futex resumed>)        = 0
[pid 11680] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11681] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11680] exit_group(0 <unfinished ...>
[pid 11681] <... futex resumed>)        = ?
[pid 11680] <... exit_group resumed>)   = ?
[pid 11681] +++ exited with 0 +++
[pid 11680] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11680, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11682
./strace-static-x86_64: Process 11682 attached
[pid 11682] set_robust_list(0x5555874576a0, 24) = 0
[pid 11682] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11682] setpgid(0, 0)               = 0
[pid 11682] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11682] write(3, "1000", 4)         = 4
[pid 11682] close(3)                    = 0
[pid 11682] write(1, "executing program\n", 18executing program
) = 18
[pid 11682] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11682] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11682] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11682] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11682] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11682] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11682] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11683]}, 88) = 11683
[pid 11682] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11682] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11682] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11683 attached
 <unfinished ...>
[pid 11683] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11683] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11683] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11683] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11682] <... futex resumed>)        = 0
[pid 11682] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11682] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11683] <... futex resumed>)        = 1
[pid 11683] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11683] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11682] <... futex resumed>)        = 0
[pid 11682] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11682] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11683] <... futex resumed>)        = 1
[pid 11683] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11683] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11682] <... futex resumed>)        = 0
[pid 11682] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11682] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11683] <... futex resumed>)        = 1
[pid 11683] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11683] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11682] <... futex resumed>)        = 0
[pid 11682] exit_group(0)               = ?
[pid 11683] <... futex resumed>)        = ?
[pid 11683] +++ exited with 0 +++
[pid 11682] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11682, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11684
./strace-static-x86_64: Process 11684 attached
[pid 11684] set_robust_list(0x5555874576a0, 24) = 0
[pid 11684] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11684] setpgid(0, 0)               = 0
[pid 11684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11684] write(3, "1000", 4)         = 4
executing program
[pid 11684] close(3)                    = 0
[pid 11684] write(1, "executing program\n", 18) = 18
[pid 11684] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11684] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11684] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11684] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11684] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11684] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11684] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11685]}, 88) = 11685
./strace-static-x86_64: Process 11685 attached
[pid 11684] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11684] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11684] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11685] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11685] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11685] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11685] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11684] <... futex resumed>)        = 0
[pid 11684] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11684] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11685] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11685] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11684] <... futex resumed>)        = 0
[pid 11684] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11684] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11685] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11685] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11684] <... futex resumed>)        = 0
[pid 11684] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11684] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11685] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11685] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11684] <... futex resumed>)        = 0
[pid 11684] exit_group(0)               = ?
[pid 11685] +++ exited with 0 +++
[pid 11684] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11684, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11686
./strace-static-x86_64: Process 11686 attached
[pid 11686] set_robust_list(0x5555874576a0, 24) = 0
[pid 11686] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11686] setpgid(0, 0)               = 0
[pid 11686] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11686] write(3, "1000", 4executing program
)         = 4
[pid 11686] close(3)                    = 0
[pid 11686] write(1, "executing program\n", 18) = 18
[pid 11686] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11686] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11686] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11686] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11686] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11686] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11686] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11687 attached
 => {parent_tid=[11687]}, 88) = 11687
[pid 11687] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11687] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11687] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11686] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11686] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11686] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11687] <... futex resumed>)        = 0
[pid 11687] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11687] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11686] <... futex resumed>)        = 0
[pid 11686] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11686] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11687] <... futex resumed>)        = 1
[pid 11687] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11687] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11686] <... futex resumed>)        = 0
[pid 11686] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11686] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11687] <... futex resumed>)        = 1
[pid 11687] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11687] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11686] <... futex resumed>)        = 0
[pid 11686] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11686] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11687] <... futex resumed>)        = 1
[pid 11687] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11687] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11686] <... futex resumed>)        = 0
[pid 11686] exit_group(0)               = ?
[pid 11687] <... futex resumed>)        = ?
[pid 11687] +++ exited with 0 +++
[pid 11686] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11686, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11688 attached
 <unfinished ...>
[pid 11688] set_robust_list(0x5555874576a0, 24) = 0
[pid 11688] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11688] setpgid(0, 0)               = 0
[pid 11688] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 11688
[pid 11688] <... openat resumed>)       = 3
[pid 11688] write(3, "1000", 4)         = 4
[pid 11688] close(3executing program
)                    = 0
[pid 11688] write(1, "executing program\n", 18) = 18
[pid 11688] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11688] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11688] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11688] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11688] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11688] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11688] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11689]}, 88) = 11689
./strace-static-x86_64: Process 11689 attached
[pid 11688] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11689] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11688] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11689] <... set_robust_list resumed>) = 0
[pid 11688] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11689] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11688] <... futex resumed>)        = 0
[pid 11689] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11688] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11689] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11689] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11688] <... futex resumed>)        = 0
[pid 11688] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11688] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11689] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11689] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11688] <... futex resumed>)        = 0
[pid 11688] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11688] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11689] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11689] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11688] <... futex resumed>)        = 0
[pid 11688] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11688] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11689] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11689] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11688] <... futex resumed>)        = 0
[pid 11688] exit_group(0)               = ?
[pid 11689] +++ exited with 0 +++
[pid 11688] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11688, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11690
./strace-static-x86_64: Process 11690 attached
[pid 11690] set_robust_list(0x5555874576a0, 24) = 0
[pid 11690] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11690] setpgid(0, 0)               = 0
[pid 11690] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11690] write(3, "1000", 4)         = 4
[pid 11690] close(3)                    = 0
executing program
[pid 11690] write(1, "executing program\n", 18) = 18
[pid 11690] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11690] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11690] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11690] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11690] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11690] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11690] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11691 attached
 => {parent_tid=[11691]}, 88) = 11691
[pid 11690] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11690] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11690] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11691] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11691] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11691] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11691] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11690] <... futex resumed>)        = 0
[pid 11690] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11691] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11690] <... futex resumed>)        = 0
[pid 11691] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11690] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11691] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11690] <... futex resumed>)        = 0
[pid 11691] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11690] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11691] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11690] <... futex resumed>)        = 0
[pid 11691] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11690] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11691] <... futex resumed>)        = 0
[pid 11690] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11691] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11690] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11691] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11690] <... futex resumed>)        = 0
[pid 11691] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11690] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11691] <... futex resumed>)        = 0
[pid 11690] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11691] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11690] exit_group(0 <unfinished ...>
[pid 11691] <... futex resumed>)        = ?
[pid 11690] <... exit_group resumed>)   = ?
[pid 11691] +++ exited with 0 +++
[pid 11690] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11690, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11692 attached
, child_tidptr=0x555587457690) = 11692
[pid 11692] set_robust_list(0x5555874576a0, 24) = 0
[pid 11692] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11692] setpgid(0, 0)               = 0
[pid 11692] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11692] write(3, "1000", 4)         = 4
[pid 11692] close(3)                    = 0
executing program
[pid 11692] write(1, "executing program\n", 18) = 18
[pid 11692] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11692] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11692] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11692] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11692] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11692] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11692] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11693 attached
 => {parent_tid=[11693]}, 88) = 11693
[pid 11692] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11692] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11692] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11693] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11693] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11693] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11693] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11692] <... futex resumed>)        = 0
[pid 11693] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11692] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11693] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11692] <... futex resumed>)        = 0
[pid 11693] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11692] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11693] <... futex resumed>)        = 0
[pid 11692] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11693] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11692] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11693] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11692] <... futex resumed>)        = 0
[pid 11693] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11692] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11693] <... futex resumed>)        = 0
[pid 11692] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11693] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11692] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11693] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11692] <... futex resumed>)        = 0
[pid 11693] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11692] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11692] exit_group(0)               = ?
[pid 11693] <... futex resumed>)        = ?
[pid 11693] +++ exited with 0 +++
[pid 11692] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11692, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11694 attached
, child_tidptr=0x555587457690) = 11694
[pid 11694] set_robust_list(0x5555874576a0, 24) = 0
[pid 11694] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11694] setpgid(0, 0)               = 0
[pid 11694] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11694] write(3, "1000", 4executing program
)         = 4
[pid 11694] close(3)                    = 0
[pid 11694] write(1, "executing program\n", 18) = 18
[pid 11694] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11694] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11694] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11694] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11694] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11694] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11694] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11695 attached
 => {parent_tid=[11695]}, 88) = 11695
[pid 11694] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11694] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11694] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11695] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11695] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11695] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11695] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11694] <... futex resumed>)        = 0
[pid 11695] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11694] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11695] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11694] <... futex resumed>)        = 0
[pid 11695] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11694] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11695] <... futex resumed>)        = 0
[pid 11694] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11695] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11694] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11695] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11694] <... futex resumed>)        = 0
[pid 11695] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11694] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11695] <... futex resumed>)        = 0
[pid 11694] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11695] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11694] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11695] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11694] <... futex resumed>)        = 0
[pid 11695] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11694] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11695] <... futex resumed>)        = 0
[pid 11694] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11695] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11694] exit_group(0 <unfinished ...>
[pid 11695] <... futex resumed>)        = ?
[pid 11694] <... exit_group resumed>)   = ?
[pid 11695] +++ exited with 0 +++
[pid 11694] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11694, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11696
./strace-static-x86_64: Process 11696 attached
[pid 11696] set_robust_list(0x5555874576a0, 24) = 0
[pid 11696] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11696] setpgid(0, 0)               = 0
[pid 11696] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11696] write(3, "1000", 4)         = 4
executing program
[pid 11696] close(3)                    = 0
[pid 11696] write(1, "executing program\n", 18) = 18
[pid 11696] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11696] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11696] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11696] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11696] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11696] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11696] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11697 attached
 => {parent_tid=[11697]}, 88) = 11697
[pid 11697] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11696] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11697] <... set_robust_list resumed>) = 0
[pid 11696] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11697] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11696] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11697] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11696] <... futex resumed>)        = 0
[pid 11697] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11696] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11697] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11697] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11696] <... futex resumed>)        = 0
[pid 11697] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11696] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11697] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11696] <... futex resumed>)        = 0
[pid 11697] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11696] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11697] <... futex resumed>)        = 0
[pid 11696] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11697] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11696] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11697] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11696] <... futex resumed>)        = 0
[pid 11697] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11696] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11697] <... futex resumed>)        = 0
[pid 11696] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11697] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11696] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11697] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11696] <... futex resumed>)        = 0
[pid 11697] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11696] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11697] <... futex resumed>)        = 0
[pid 11696] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11697] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11696] exit_group(0 <unfinished ...>
[pid 11697] <... futex resumed>)        = ?
[pid 11696] <... exit_group resumed>)   = ?
[pid 11697] +++ exited with 0 +++
[pid 11696] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11696, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11698
./strace-static-x86_64: Process 11698 attached
[pid 11698] set_robust_list(0x5555874576a0, 24) = 0
[pid 11698] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11698] setpgid(0, 0)               = 0
[pid 11698] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11698] write(3, "1000", 4)         = 4
[pid 11698] close(3)                    = 0
[pid 11698] write(1, "executing program\n", 18executing program
) = 18
[pid 11698] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11698] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11698] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11698] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11698] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11698] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11698] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11699]}, 88) = 11699
[pid 11698] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11698] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11698] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11699 attached
 <unfinished ...>
[pid 11699] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11699] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11699] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11699] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11698] <... futex resumed>)        = 0
[pid 11699] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11698] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11699] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11698] <... futex resumed>)        = 0
[pid 11699] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11698] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11699] <... futex resumed>)        = 0
[pid 11698] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11699] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11698] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11699] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11698] <... futex resumed>)        = 0
[pid 11699] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11698] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11699] <... futex resumed>)        = 0
[pid 11698] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11699] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11698] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11699] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11698] <... futex resumed>)        = 0
[pid 11699] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11698] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11699] <... futex resumed>)        = 0
[pid 11698] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11699] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11698] exit_group(0 <unfinished ...>
[pid 11699] <... futex resumed>)        = ?
[pid 11698] <... exit_group resumed>)   = ?
[pid 11699] +++ exited with 0 +++
[pid 11698] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11698, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11700
./strace-static-x86_64: Process 11700 attached
[pid 11700] set_robust_list(0x5555874576a0, 24) = 0
[pid 11700] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11700] setpgid(0, 0)               = 0
[pid 11700] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11700] write(3, "1000", 4)         = 4
[pid 11700] close(3)                    = 0
[pid 11700] write(1, "executing program\n", 18executing program
) = 18
[pid 11700] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11700] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11700] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11700] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11700] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11700] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11700] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11701]}, 88) = 11701
[pid 11700] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11700] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11700] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11701 attached
 <unfinished ...>
[pid 11701] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11701] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11701] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11701] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11700] <... futex resumed>)        = 0
[pid 11701] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11700] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11701] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11700] <... futex resumed>)        = 0
[pid 11701] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11700] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11701] <... futex resumed>)        = 0
[pid 11700] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11701] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11700] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11701] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11700] <... futex resumed>)        = 0
[pid 11701] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11700] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11701] <... futex resumed>)        = 0
[pid 11700] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11701] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11700] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11701] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11700] <... futex resumed>)        = 0
[pid 11701] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11700] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11701] <... futex resumed>)        = 0
[pid 11700] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11701] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11700] exit_group(0 <unfinished ...>
[pid 11701] <... futex resumed>)        = ?
[pid 11700] <... exit_group resumed>)   = ?
[pid 11701] +++ exited with 0 +++
[pid 11700] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11700, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11702
./strace-static-x86_64: Process 11702 attached
[pid 11702] set_robust_list(0x5555874576a0, 24) = 0
[pid 11702] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11702] setpgid(0, 0)               = 0
[pid 11702] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11702] write(3, "1000", 4)         = 4
[pid 11702] close(3)                    = 0
[pid 11702] write(1, "executing program\n", 18executing program
) = 18
[pid 11702] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11702] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11702] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11702] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11702] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11702] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11702] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11703 attached
 => {parent_tid=[11703]}, 88) = 11703
[pid 11703] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11702] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11703] <... set_robust_list resumed>) = 0
[pid 11702] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11703] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11702] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11703] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11702] <... futex resumed>)        = 0
[pid 11703] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11702] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11703] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11703] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11702] <... futex resumed>)        = 0
[pid 11702] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11702] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11703] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11703] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11702] <... futex resumed>)        = 0
[pid 11702] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11702] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11703] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11703] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11702] <... futex resumed>)        = 0
[pid 11702] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11702] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11703] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11703] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11702] <... futex resumed>)        = 0
[pid 11702] exit_group(0 <unfinished ...>
[pid 11703] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11702] <... exit_group resumed>)   = ?
[pid 11703] <... futex resumed>)        = ?
[pid 11703] +++ exited with 0 +++
[pid 11702] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11702, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11704 attached
, child_tidptr=0x555587457690) = 11704
[pid 11704] set_robust_list(0x5555874576a0, 24) = 0
[pid 11704] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11704] setpgid(0, 0)               = 0
[pid 11704] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11704] write(3, "1000", 4)         = 4
[pid 11704] close(3)                    = 0
[pid 11704] write(1, "executing program\n", 18executing program
) = 18
[pid 11704] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11704] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11704] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11704] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11704] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11704] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11704] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11705 attached
 => {parent_tid=[11705]}, 88) = 11705
[pid 11704] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11704] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11704] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11705] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11705] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11705] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11705] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11705] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11704] <... futex resumed>)        = 0
[pid 11704] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11704] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11705] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11705] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11705] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11704] <... futex resumed>)        = 0
[pid 11704] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11705] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11704] <... futex resumed>)        = 0
[pid 11705] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11704] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11705] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11704] <... futex resumed>)        = 0
[pid 11704] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11704] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11705] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11705] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11704] <... futex resumed>)        = 0
[pid 11704] exit_group(0)               = ?
[pid 11705] +++ exited with 0 +++
[pid 11704] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11704, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11706
./strace-static-x86_64: Process 11706 attached
[pid 11706] set_robust_list(0x5555874576a0, 24) = 0
[pid 11706] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11706] setpgid(0, 0)               = 0
[pid 11706] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11706] write(3, "1000", 4)         = 4
[pid 11706] close(3)                    = 0
[pid 11706] write(1, "executing program\n", 18executing program
) = 18
[pid 11706] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11706] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11706] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11706] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11706] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11706] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11706] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11707]}, 88) = 11707
./strace-static-x86_64: Process 11707 attached
[pid 11706] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11706] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11706] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11707] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11707] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11707] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11707] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11706] <... futex resumed>)        = 0
[pid 11706] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11706] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11707] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11707] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11706] <... futex resumed>)        = 0
[pid 11706] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11706] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11707] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11707] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11706] <... futex resumed>)        = 0
[pid 11706] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11706] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11707] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11707] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11706] <... futex resumed>)        = 0
[pid 11706] exit_group(0)               = ?
[pid 11707] +++ exited with 0 +++
[pid 11706] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11706, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11708
./strace-static-x86_64: Process 11708 attached
[pid 11708] set_robust_list(0x5555874576a0, 24) = 0
[pid 11708] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11708] setpgid(0, 0)               = 0
[pid 11708] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11708] write(3, "1000", 4)         = 4
[pid 11708] close(3)                    = 0
[pid 11708] write(1, "executing program\n", 18executing program
) = 18
[pid 11708] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11708] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11708] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11708] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11708] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11708] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11708] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11709]}, 88) = 11709
[pid 11708] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11708] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11708] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11709 attached
 <unfinished ...>
[pid 11709] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11709] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11709] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11709] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11708] <... futex resumed>)        = 0
[pid 11708] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11708] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11709] <... futex resumed>)        = 1
[pid 11709] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11709] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11708] <... futex resumed>)        = 0
[pid 11708] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11708] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11709] <... futex resumed>)        = 1
[pid 11709] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11709] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11708] <... futex resumed>)        = 0
[pid 11708] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11708] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11709] <... futex resumed>)        = 1
[pid 11709] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11709] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11708] <... futex resumed>)        = 0
[pid 11708] exit_group(0)               = ?
[pid 11709] <... futex resumed>)        = ?
[pid 11709] +++ exited with 0 +++
[pid 11708] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11708, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11710
./strace-static-x86_64: Process 11710 attached
[pid 11710] set_robust_list(0x5555874576a0, 24) = 0
[pid 11710] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11710] setpgid(0, 0)               = 0
[pid 11710] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11710] write(3, "1000", 4)         = 4
[pid 11710] close(3)                    = 0
[pid 11710] write(1, "executing program\n", 18executing program
) = 18
[pid 11710] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11710] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11710] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11710] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11710] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11710] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11710] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11711]}, 88) = 11711
[pid 11710] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11710] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11710] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11711 attached
 <unfinished ...>
[pid 11711] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11711] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11711] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11711] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11710] <... futex resumed>)        = 0
[pid 11710] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11710] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11711] <... futex resumed>)        = 1
[pid 11711] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11711] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11710] <... futex resumed>)        = 0
[pid 11710] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11710] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11711] <... futex resumed>)        = 1
[pid 11711] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11711] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11710] <... futex resumed>)        = 0
[pid 11710] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11710] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11711] <... futex resumed>)        = 1
[pid 11711] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11711] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11710] <... futex resumed>)        = 0
[pid 11711] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11710] exit_group(0)               = ?
[pid 11711] <... futex resumed>)        = ?
[pid 11711] +++ exited with 0 +++
[pid 11710] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11710, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11712
./strace-static-x86_64: Process 11712 attached
[pid 11712] set_robust_list(0x5555874576a0, 24) = 0
[pid 11712] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11712] setpgid(0, 0)               = 0
[pid 11712] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11712] write(3, "1000", 4)         = 4
[pid 11712] close(3)                    = 0
executing program
[pid 11712] write(1, "executing program\n", 18) = 18
[pid 11712] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11712] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11712] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11712] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11712] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11712] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11712] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11713 attached
 => {parent_tid=[11713]}, 88) = 11713
[pid 11713] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11713] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11713] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11712] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11712] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11713] <... futex resumed>)        = 0
[pid 11713] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11712] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11713] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11713] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11713] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11712] <... futex resumed>)        = 0
[pid 11713] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11712] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11713] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11712] <... futex resumed>)        = 0
[pid 11713] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11713] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11713] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11712] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11712] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11713] <... futex resumed>)        = 0
[pid 11713] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11713] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11713] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11712] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11712] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11713] <... futex resumed>)        = 0
[pid 11713] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11712] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11713] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11713] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11713] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11712] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11712] exit_group(0)               = ?
[pid 11713] <... futex resumed>)        = ?
[pid 11713] +++ exited with 0 +++
[pid 11712] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11712, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11714
./strace-static-x86_64: Process 11714 attached
[pid 11714] set_robust_list(0x5555874576a0, 24) = 0
[pid 11714] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11714] setpgid(0, 0)               = 0
[pid 11714] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11714] write(3, "1000", 4)         = 4
[pid 11714] close(3)                    = 0
[pid 11714] write(1, "executing program\n", 18executing program
) = 18
[pid 11714] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11714] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11714] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11714] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11714] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11714] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11714] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11715]}, 88) = 11715
[pid 11714] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11714] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11714] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11715 attached
 <unfinished ...>
[pid 11715] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11715] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11715] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11715] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11714] <... futex resumed>)        = 0
[pid 11714] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11714] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11715] <... futex resumed>)        = 1
[pid 11715] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11715] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11714] <... futex resumed>)        = 0
[pid 11714] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11714] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11715] <... futex resumed>)        = 1
[pid 11715] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11715] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11714] <... futex resumed>)        = 0
[pid 11714] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11714] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11715] <... futex resumed>)        = 1
[pid 11715] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11715] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11714] <... futex resumed>)        = 0
[pid 11714] exit_group(0)               = ?
[pid 11715] <... futex resumed>)        = ?
[pid 11715] +++ exited with 0 +++
[pid 11714] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11714, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11716
./strace-static-x86_64: Process 11716 attached
[pid 11716] set_robust_list(0x5555874576a0, 24) = 0
[pid 11716] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11716] setpgid(0, 0)               = 0
[pid 11716] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11716] write(3, "1000", 4)         = 4
[pid 11716] close(3)                    = 0
[pid 11716] write(1, "executing program\n", 18) = 18
executing program
[pid 11716] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11716] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11716] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11716] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11716] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11716] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11716] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11717]}, 88) = 11717
./strace-static-x86_64: Process 11717 attached
[pid 11716] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11716] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11716] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11717] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11717] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11717] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11717] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11716] <... futex resumed>)        = 0
[pid 11716] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11716] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11717] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11717] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11716] <... futex resumed>)        = 0
[pid 11716] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11716] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11717] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11717] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11716] <... futex resumed>)        = 0
[pid 11716] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11716] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11717] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11717] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11716] <... futex resumed>)        = 0
[pid 11716] exit_group(0)               = ?
[pid 11717] +++ exited with 0 +++
[pid 11716] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11716, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11718
./strace-static-x86_64: Process 11718 attached
[pid 11718] set_robust_list(0x5555874576a0, 24) = 0
[pid 11718] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11718] setpgid(0, 0)               = 0
[pid 11718] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11718] write(3, "1000", 4executing program
)         = 4
[pid 11718] close(3)                    = 0
[pid 11718] write(1, "executing program\n", 18) = 18
[pid 11718] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11718] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11718] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11718] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11718] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11718] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11718] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11719]}, 88) = 11719
[pid 11718] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11718] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11718] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11719 attached
 <unfinished ...>
[pid 11719] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11719] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11719] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11719] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11718] <... futex resumed>)        = 0
[pid 11718] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11718] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11719] <... futex resumed>)        = 1
[pid 11719] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11719] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11718] <... futex resumed>)        = 0
[pid 11718] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11718] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11719] <... futex resumed>)        = 1
[pid 11719] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11719] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11718] <... futex resumed>)        = 0
[pid 11718] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11718] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11719] <... futex resumed>)        = 1
[pid 11719] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11719] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11718] <... futex resumed>)        = 0
[pid 11718] exit_group(0)               = ?
[pid 11719] <... futex resumed>)        = ?
[pid 11719] +++ exited with 0 +++
[pid 11718] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11718, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11720
./strace-static-x86_64: Process 11720 attached
[pid 11720] set_robust_list(0x5555874576a0, 24) = 0
[pid 11720] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11720] setpgid(0, 0)               = 0
[pid 11720] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11720] write(3, "1000", 4)         = 4
[pid 11720] close(3)                    = 0
[pid 11720] write(1, "executing program\n", 18executing program
) = 18
[pid 11720] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11720] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11720] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11720] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11720] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11720] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11720] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11721]}, 88) = 11721
[pid 11720] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11720] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11720] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11721 attached
 <unfinished ...>
[pid 11721] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11721] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11721] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11721] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11720] <... futex resumed>)        = 0
[pid 11720] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11720] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11721] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11721] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11720] <... futex resumed>)        = 0
[pid 11720] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11720] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11721] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11721] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11720] <... futex resumed>)        = 0
[pid 11720] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11720] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11721] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11721] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11720] <... futex resumed>)        = 0
[pid 11720] exit_group(0)               = ?
[pid 11721] +++ exited with 0 +++
[pid 11720] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11720, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11722
./strace-static-x86_64: Process 11722 attached
[pid 11722] set_robust_list(0x5555874576a0, 24) = 0
[pid 11722] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11722] setpgid(0, 0)               = 0
[pid 11722] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11722] write(3, "1000", 4)         = 4
[pid 11722] close(3)                    = 0
[pid 11722] write(1, "executing program\n", 18executing program
) = 18
[pid 11722] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11722] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11722] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11722] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11722] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11722] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11722] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11723]}, 88) = 11723
[pid 11722] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11722] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11722] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11723 attached
 <unfinished ...>
[pid 11723] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11723] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11723] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11723] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11722] <... futex resumed>)        = 0
[pid 11722] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11722] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11723] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11723] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11722] <... futex resumed>)        = 0
[pid 11722] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11722] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11723] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11723] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11722] <... futex resumed>)        = 0
[pid 11722] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11722] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11723] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11723] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11722] <... futex resumed>)        = 0
[pid 11722] exit_group(0)               = ?
[pid 11723] +++ exited with 0 +++
[pid 11722] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11722, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11724
./strace-static-x86_64: Process 11724 attached
[pid 11724] set_robust_list(0x5555874576a0, 24) = 0
[pid 11724] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11724] setpgid(0, 0)               = 0
[pid 11724] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11724] write(3, "1000", 4)         = 4
[pid 11724] close(3)                    = 0
executing program
[pid 11724] write(1, "executing program\n", 18) = 18
[pid 11724] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11724] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11724] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11724] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11724] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11724] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11724] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11725 attached
 => {parent_tid=[11725]}, 88) = 11725
[pid 11725] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11725] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11725] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11724] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11724] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11725] <... futex resumed>)        = 0
[pid 11725] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11724] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11725] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11725] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11724] <... futex resumed>)        = 0
[pid 11724] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11724] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11725] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11725] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11724] <... futex resumed>)        = 0
[pid 11724] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11724] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11725] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11725] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11724] <... futex resumed>)        = 0
[pid 11724] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11724] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11725] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11725] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11724] <... futex resumed>)        = 0
[pid 11724] exit_group(0)               = ?
[pid 11725] +++ exited with 0 +++
[pid 11724] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11724, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11726
./strace-static-x86_64: Process 11726 attached
[pid 11726] set_robust_list(0x5555874576a0, 24) = 0
[pid 11726] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11726] setpgid(0, 0)               = 0
[pid 11726] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11726] write(3, "1000", 4)         = 4
[pid 11726] close(3)                    = 0
[pid 11726] write(1, "executing program\n", 18executing program
) = 18
[pid 11726] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11726] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11726] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11726] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11726] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11726] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11726] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11727]}, 88) = 11727
[pid 11726] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11726] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11726] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11727 attached
 <unfinished ...>
[pid 11727] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11727] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11727] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11727] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11726] <... futex resumed>)        = 0
[pid 11726] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11726] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11727] <... futex resumed>)        = 1
[pid 11727] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11727] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11726] <... futex resumed>)        = 0
[pid 11726] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11726] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11727] <... futex resumed>)        = 1
[pid 11727] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11727] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11726] <... futex resumed>)        = 0
[pid 11726] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11726] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11727] <... futex resumed>)        = 1
[pid 11727] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11727] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11726] <... futex resumed>)        = 0
[pid 11727] <... futex resumed>)        = 1
[pid 11726] exit_group(0)               = ?
[pid 11727] +++ exited with 0 +++
[pid 11726] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11726, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11728
./strace-static-x86_64: Process 11728 attached
[pid 11728] set_robust_list(0x5555874576a0, 24) = 0
[pid 11728] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11728] setpgid(0, 0)               = 0
[pid 11728] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11728] write(3, "1000", 4)         = 4
[pid 11728] close(3executing program
)                    = 0
[pid 11728] write(1, "executing program\n", 18) = 18
[pid 11728] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11728] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11728] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11728] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11728] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11728] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11728] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11729 attached
 => {parent_tid=[11729]}, 88) = 11729
[pid 11728] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11728] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11728] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11729] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11729] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11729] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11729] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11728] <... futex resumed>)        = 0
[pid 11728] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11728] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11729] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11729] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11728] <... futex resumed>)        = 0
[pid 11728] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11728] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11729] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11729] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11728] <... futex resumed>)        = 0
[pid 11728] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11728] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11729] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11729] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11728] <... futex resumed>)        = 0
[pid 11728] exit_group(0)               = ?
[pid 11729] +++ exited with 0 +++
[pid 11728] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11728, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11730
./strace-static-x86_64: Process 11730 attached
[pid 11730] set_robust_list(0x5555874576a0, 24) = 0
[pid 11730] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11730] setpgid(0, 0)               = 0
[pid 11730] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11730] write(3, "1000", 4)         = 4
[pid 11730] close(3)                    = 0
[pid 11730] write(1, "executing program\n", 18executing program
) = 18
[pid 11730] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11730] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11730] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11730] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11730] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11730] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11730] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11731]}, 88) = 11731
[pid 11730] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11730] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11730] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11731 attached
 <unfinished ...>
[pid 11731] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11731] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11731] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11731] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11730] <... futex resumed>)        = 0
[pid 11730] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11730] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11731] <... futex resumed>)        = 1
[pid 11731] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11731] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11730] <... futex resumed>)        = 0
[pid 11730] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11730] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11731] <... futex resumed>)        = 1
[pid 11731] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11731] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11730] <... futex resumed>)        = 0
[pid 11730] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11730] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11731] <... futex resumed>)        = 1
[pid 11731] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11731] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11730] <... futex resumed>)        = 0
[pid 11730] exit_group(0 <unfinished ...>
[pid 11731] <... futex resumed>)        = 1
[pid 11730] <... exit_group resumed>)   = ?
[pid 11731] +++ exited with 0 +++
[pid 11730] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11730, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11732
./strace-static-x86_64: Process 11732 attached
[pid 11732] set_robust_list(0x5555874576a0, 24) = 0
[pid 11732] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11732] setpgid(0, 0)               = 0
[pid 11732] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11732] write(3, "1000", 4)         = 4
[pid 11732] close(3)                    = 0
[pid 11732] write(1, "executing program\n", 18executing program
) = 18
[pid 11732] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11732] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11732] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11732] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11732] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11732] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11732] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11733 attached
 => {parent_tid=[11733]}, 88) = 11733
[pid 11732] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11732] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11732] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11733] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11733] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11733] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11733] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11733] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11732] <... futex resumed>)        = 0
[pid 11732] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11733] <... futex resumed>)        = 0
[pid 11733] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11732] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11733] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11733] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11732] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11732] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11733] <... futex resumed>)        = 0
[pid 11733] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11733] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11733] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11732] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11732] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11733] <... futex resumed>)        = 0
[pid 11733] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11733] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11733] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11732] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11732] exit_group(0)               = ?
[pid 11733] <... futex resumed>)        = ?
[pid 11733] +++ exited with 0 +++
[pid 11732] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11732, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11734 attached
, child_tidptr=0x555587457690) = 11734
[pid 11734] set_robust_list(0x5555874576a0, 24) = 0
[pid 11734] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11734] setpgid(0, 0)               = 0
[pid 11734] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11734] write(3, "1000", 4executing program
)         = 4
[pid 11734] close(3)                    = 0
[pid 11734] write(1, "executing program\n", 18) = 18
[pid 11734] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11734] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11734] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11734] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11734] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11734] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11734] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11735]}, 88) = 11735
[pid 11734] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11734] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11734] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11735 attached
 <unfinished ...>
[pid 11735] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11735] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11735] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11735] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11734] <... futex resumed>)        = 0
[pid 11734] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11734] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11735] <... futex resumed>)        = 1
[pid 11735] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11735] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11734] <... futex resumed>)        = 0
[pid 11734] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11734] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11735] <... futex resumed>)        = 1
[pid 11735] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11735] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11734] <... futex resumed>)        = 0
[pid 11734] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11734] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11735] <... futex resumed>)        = 1
[pid 11735] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11735] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11734] <... futex resumed>)        = 0
[pid 11734] exit_group(0)               = ?
[pid 11735] <... futex resumed>)        = ?
[pid 11735] +++ exited with 0 +++
[pid 11734] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11734, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11736
./strace-static-x86_64: Process 11736 attached
[pid 11736] set_robust_list(0x5555874576a0, 24) = 0
[pid 11736] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11736] setpgid(0, 0)               = 0
[pid 11736] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11736] write(3, "1000", 4)         = 4
[pid 11736] close(3)                    = 0
executing program
[pid 11736] write(1, "executing program\n", 18) = 18
[pid 11736] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11736] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11736] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11736] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11736] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11736] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11736] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11737 attached
 => {parent_tid=[11737]}, 88) = 11737
[pid 11736] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11736] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11736] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11737] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11737] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11737] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11737] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11736] <... futex resumed>)        = 0
[pid 11736] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11736] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11737] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11737] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11736] <... futex resumed>)        = 0
[pid 11736] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11736] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11737] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11737] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11736] <... futex resumed>)        = 0
[pid 11736] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11736] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11737] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11737] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11736] <... futex resumed>)        = 0
[pid 11736] exit_group(0)               = ?
[pid 11737] +++ exited with 0 +++
[pid 11736] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11736, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11738
./strace-static-x86_64: Process 11738 attached
[pid 11738] set_robust_list(0x5555874576a0, 24) = 0
[pid 11738] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11738] setpgid(0, 0)               = 0
[pid 11738] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11738] write(3, "1000", 4)         = 4
[pid 11738] close(3)                    = 0
executing program
[pid 11738] write(1, "executing program\n", 18) = 18
[pid 11738] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11738] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11738] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11738] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11738] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11738] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11738] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11739]}, 88) = 11739
./strace-static-x86_64: Process 11739 attached
[pid 11739] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11739] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11739] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11738] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11738] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11739] <... futex resumed>)        = 0
[pid 11739] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11738] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11739] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11739] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11738] <... futex resumed>)        = 0
[pid 11738] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11738] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11739] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11739] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11738] <... futex resumed>)        = 0
[pid 11738] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11738] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11739] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11739] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11738] <... futex resumed>)        = 0
[pid 11738] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11738] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11739] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11739] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11738] <... futex resumed>)        = 0
[pid 11738] exit_group(0)               = ?
[pid 11739] +++ exited with 0 +++
[pid 11738] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11738, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11740
./strace-static-x86_64: Process 11740 attached
[pid 11740] set_robust_list(0x5555874576a0, 24) = 0
[pid 11740] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11740] setpgid(0, 0)               = 0
[pid 11740] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11740] write(3, "1000", 4)         = 4
[pid 11740] close(3)                    = 0
executing program
[pid 11740] write(1, "executing program\n", 18) = 18
[pid 11740] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11740] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11740] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11740] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11740] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11740] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11740] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11741 attached
 => {parent_tid=[11741]}, 88) = 11741
[pid 11740] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11740] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11740] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11741] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11741] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11741] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11741] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11740] <... futex resumed>)        = 0
[pid 11740] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11740] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11741] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11741] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11740] <... futex resumed>)        = 0
[pid 11741] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11740] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11741] <... futex resumed>)        = 0
[pid 11741] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11741] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11741] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11740] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11740] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11741] <... futex resumed>)        = 0
[pid 11740] <... futex resumed>)        = 1
[pid 11741] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11741] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11741] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11740] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11740] exit_group(0 <unfinished ...>
[pid 11741] <... futex resumed>)        = ?
[pid 11740] <... exit_group resumed>)   = ?
[pid 11741] +++ exited with 0 +++
[pid 11740] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11740, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11742
./strace-static-x86_64: Process 11742 attached
[pid 11742] set_robust_list(0x5555874576a0, 24) = 0
[pid 11742] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11742] setpgid(0, 0)               = 0
[pid 11742] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11742] write(3, "1000", 4)         = 4
[pid 11742] close(3)                    = 0
[pid 11742] write(1, "executing program\n", 18executing program
) = 18
[pid 11742] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11742] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11742] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11742] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11742] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11742] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11742] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11743 attached
 => {parent_tid=[11743]}, 88) = 11743
[pid 11743] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11743] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11743] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11742] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11742] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11743] <... futex resumed>)        = 0
[pid 11743] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11742] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11743] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11743] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11743] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11742] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11742] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11743] <... futex resumed>)        = 0
[pid 11743] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11742] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11743] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11743] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11743] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11742] <... futex resumed>)        = 0
[pid 11742] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11742] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11743] <... futex resumed>)        = 0
[pid 11743] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11743] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11743] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11742] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11742] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11743] <... futex resumed>)        = 0
[pid 11743] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11743] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11742] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11743] <... futex resumed>)        = 0
[pid 11743] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11742] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11742] exit_group(0)               = ?
[pid 11743] <... futex resumed>)        = ?
[pid 11743] +++ exited with 0 +++
[pid 11742] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11742, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11744
./strace-static-x86_64: Process 11744 attached
[pid 11744] set_robust_list(0x5555874576a0, 24) = 0
[pid 11744] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11744] setpgid(0, 0)               = 0
[pid 11744] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11744] write(3, "1000", 4)         = 4
[pid 11744] close(3)                    = 0
[pid 11744] write(1, "executing program\n", 18executing program
) = 18
[pid 11744] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11744] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11744] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11744] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11744] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11744] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11744] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11745]}, 88) = 11745
[pid 11744] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11744] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11744] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11745 attached
 <unfinished ...>
[pid 11745] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11745] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11745] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11745] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11744] <... futex resumed>)        = 0
[pid 11744] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11744] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11745] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11745] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11744] <... futex resumed>)        = 0
[pid 11744] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11744] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11745] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11745] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11744] <... futex resumed>)        = 0
[pid 11744] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11744] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11745] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11745] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11744] <... futex resumed>)        = 0
[pid 11744] exit_group(0)               = ?
[pid 11745] +++ exited with 0 +++
[pid 11744] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11744, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11746
./strace-static-x86_64: Process 11746 attached
[pid 11746] set_robust_list(0x5555874576a0, 24) = 0
[pid 11746] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11746] setpgid(0, 0)               = 0
[pid 11746] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11746] write(3, "1000", 4)         = 4
[pid 11746] close(3)                    = 0
executing program
[pid 11746] write(1, "executing program\n", 18) = 18
[pid 11746] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11746] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11746] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11746] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11746] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11746] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11746] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11747 attached
 => {parent_tid=[11747]}, 88) = 11747
[pid 11747] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11747] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11747] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11746] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11746] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11747] <... futex resumed>)        = 0
[pid 11747] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11746] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11747] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11747] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11747] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11746] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11746] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11747] <... futex resumed>)        = 0
[pid 11747] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11747] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11747] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11746] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11746] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11747] <... futex resumed>)        = 0
[pid 11746] <... futex resumed>)        = 1
[pid 11747] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11747] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11747] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11746] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11746] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11747] <... futex resumed>)        = 0
[pid 11747] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11747] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11747] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11746] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11746] exit_group(0)               = ?
[pid 11747] <... futex resumed>)        = ?
[pid 11747] +++ exited with 0 +++
[pid 11746] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11746, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11748
./strace-static-x86_64: Process 11748 attached
[pid 11748] set_robust_list(0x5555874576a0, 24) = 0
[pid 11748] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11748] setpgid(0, 0)               = 0
[pid 11748] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11748] write(3, "1000", 4)         = 4
[pid 11748] close(3)                    = 0
[pid 11748] write(1, "executing program\n", 18executing program
) = 18
[pid 11748] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11748] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11748] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11748] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11748] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11748] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11748] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11749 attached
 <unfinished ...>
[pid 11749] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11749] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11749] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11748] <... clone3 resumed> => {parent_tid=[11749]}, 88) = 11749
[pid 11748] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11748] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11749] <... futex resumed>)        = 0
[pid 11749] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11749] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11749] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11748] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11748] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11749] <... futex resumed>)        = 0
[pid 11749] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11749] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11749] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11748] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11748] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11749] <... futex resumed>)        = 0
[pid 11749] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11749] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11749] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11748] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11748] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11749] <... futex resumed>)        = 0
[pid 11748] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11749] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11749] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11748] <... futex resumed>)        = 0
[pid 11749] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11748] exit_group(0 <unfinished ...>
[pid 11749] <... futex resumed>)        = ?
[pid 11748] <... exit_group resumed>)   = ?
[pid 11749] +++ exited with 0 +++
[pid 11748] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11748, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11750
./strace-static-x86_64: Process 11750 attached
[pid 11750] set_robust_list(0x5555874576a0, 24) = 0
[pid 11750] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11750] setpgid(0, 0)               = 0
[pid 11750] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11750] write(3, "1000", 4)         = 4
[pid 11750] close(3)                    = 0
[pid 11750] write(1, "executing program\n", 18executing program
) = 18
[pid 11750] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11750] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11750] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11750] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11750] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11750] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11750] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11751 attached
 => {parent_tid=[11751]}, 88) = 11751
[pid 11751] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11751] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11751] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11750] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11750] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11751] <... futex resumed>)        = 0
[pid 11751] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11751] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11751] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11750] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11750] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11751] <... futex resumed>)        = 0
[pid 11751] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11751] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11751] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11750] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11750] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11751] <... futex resumed>)        = 0
[pid 11751] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11751] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11751] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11750] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11750] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11751] <... futex resumed>)        = 0
[pid 11751] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11751] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11751] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11750] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11750] exit_group(0)               = ?
[pid 11751] <... futex resumed>)        = ?
[pid 11751] +++ exited with 0 +++
[pid 11750] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11750, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11752 attached
, child_tidptr=0x555587457690) = 11752
[pid 11752] set_robust_list(0x5555874576a0, 24) = 0
[pid 11752] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11752] setpgid(0, 0)               = 0
[pid 11752] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11752] write(3, "1000", 4)         = 4
[pid 11752] close(3)                    = 0
[pid 11752] write(1, "executing program\n", 18executing program
) = 18
[pid 11752] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11752] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11752] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11752] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11752] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11752] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11752] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11753 attached
 => {parent_tid=[11753]}, 88) = 11753
[pid 11753] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11753] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11753] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11752] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11752] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11753] <... futex resumed>)        = 0
[pid 11753] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11752] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11753] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11753] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11752] <... futex resumed>)        = 0
[pid 11752] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11752] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11753] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11753] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11752] <... futex resumed>)        = 0
[pid 11752] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11752] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11753] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11753] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11752] <... futex resumed>)        = 0
[pid 11752] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11752] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11753] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11753] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11752] <... futex resumed>)        = 0
[pid 11752] exit_group(0)               = ?
[pid 11753] +++ exited with 0 +++
[pid 11752] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11752, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11754 attached
, child_tidptr=0x555587457690) = 11754
[pid 11754] set_robust_list(0x5555874576a0, 24) = 0
[pid 11754] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11754] setpgid(0, 0)               = 0
[pid 11754] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11754] write(3, "1000", 4)         = 4
[pid 11754] close(3)                    = 0
executing program
[pid 11754] write(1, "executing program\n", 18) = 18
[pid 11754] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11754] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11754] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11754] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11754] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11754] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11754] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11755 attached
 => {parent_tid=[11755]}, 88) = 11755
[pid 11754] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11754] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11754] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11755] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11755] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11755] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11755] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11754] <... futex resumed>)        = 0
[pid 11754] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11754] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11755] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11755] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11754] <... futex resumed>)        = 0
[pid 11754] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11754] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11755] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11755] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11754] <... futex resumed>)        = 0
[pid 11754] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11754] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11755] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11755] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11754] <... futex resumed>)        = 0
[pid 11754] exit_group(0)               = ?
[pid 11755] +++ exited with 0 +++
[pid 11754] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11754, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11756 attached
, child_tidptr=0x555587457690) = 11756
[pid 11756] set_robust_list(0x5555874576a0, 24) = 0
[pid 11756] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11756] setpgid(0, 0)               = 0
[pid 11756] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11756] write(3, "1000", 4)         = 4
[pid 11756] close(3)                    = 0
[pid 11756] write(1, "executing program\n", 18executing program
) = 18
[pid 11756] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11756] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11756] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11756] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11756] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11756] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11756] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11757 attached
 <unfinished ...>
[pid 11757] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11757] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11757] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11756] <... clone3 resumed> => {parent_tid=[11757]}, 88) = 11757
[pid 11756] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11756] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11757] <... futex resumed>)        = 0
[pid 11757] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11757] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11756] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11757] <... futex resumed>)        = 0
[pid 11757] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11756] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11756] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11757] <... futex resumed>)        = 0
[pid 11757] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11757] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11757] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11756] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11756] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11757] <... futex resumed>)        = 0
[pid 11756] <... futex resumed>)        = 1
[pid 11757] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11756] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11757] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11757] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11756] <... futex resumed>)        = 0
[pid 11756] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11756] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11757] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11757] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11756] <... futex resumed>)        = 0
[pid 11757] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11756] exit_group(0)               = ?
[pid 11757] <... futex resumed>)        = ?
[pid 11757] +++ exited with 0 +++
[pid 11756] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11756, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11758
./strace-static-x86_64: Process 11758 attached
[pid 11758] set_robust_list(0x5555874576a0, 24) = 0
[pid 11758] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11758] setpgid(0, 0)               = 0
[pid 11758] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11758] write(3, "1000", 4)         = 4
[pid 11758] close(3)                    = 0
executing program
[pid 11758] write(1, "executing program\n", 18) = 18
[pid 11758] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11758] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11758] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11758] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11758] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11758] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11758] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11759 attached
 <unfinished ...>
[pid 11759] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11759] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11758] <... clone3 resumed> => {parent_tid=[11759]}, 88) = 11759
[pid 11759] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11758] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11758] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11758] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11759] <... futex resumed>)        = 0
[pid 11759] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11759] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11758] <... futex resumed>)        = 0
[pid 11758] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11758] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11759] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11759] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11758] <... futex resumed>)        = 0
[pid 11758] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11758] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11759] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11759] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11758] <... futex resumed>)        = 0
[pid 11758] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11759] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11758] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11759] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11759] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11758] <... futex resumed>)        = 0
[pid 11759] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11758] exit_group(0 <unfinished ...>
[pid 11759] <... futex resumed>)        = ?
[pid 11758] <... exit_group resumed>)   = ?
[pid 11759] +++ exited with 0 +++
[pid 11758] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11758, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11760
./strace-static-x86_64: Process 11760 attached
[pid 11760] set_robust_list(0x5555874576a0, 24) = 0
[pid 11760] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11760] setpgid(0, 0)               = 0
[pid 11760] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11760] write(3, "1000", 4)         = 4
[pid 11760] close(3)                    = 0
[pid 11760] write(1, "executing program\n", 18executing program
) = 18
[pid 11760] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11760] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11760] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11760] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11760] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11760] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11760] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11761 attached
 <unfinished ...>
[pid 11761] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11761] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11761] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11760] <... clone3 resumed> => {parent_tid=[11761]}, 88) = 11761
[pid 11760] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11760] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11761] <... futex resumed>)        = 0
[pid 11761] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11761] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11761] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11760] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11760] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11761] <... futex resumed>)        = 0
[pid 11761] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11760] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11761] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11761] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11760] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11760] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11761] <... futex resumed>)        = 0
[pid 11760] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11761] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11761] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11761] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11760] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11760] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11761] <... futex resumed>)        = 0
[pid 11761] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11760] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11761] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11761] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11761] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11760] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11760] exit_group(0)               = ?
[pid 11761] <... futex resumed>)        = ?
[pid 11761] +++ exited with 0 +++
[pid 11760] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11760, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11762
./strace-static-x86_64: Process 11762 attached
[pid 11762] set_robust_list(0x5555874576a0, 24) = 0
[pid 11762] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11762] setpgid(0, 0)               = 0
[pid 11762] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11762] write(3, "1000", 4)         = 4
[pid 11762] close(3executing program
)                    = 0
[pid 11762] write(1, "executing program\n", 18) = 18
[pid 11762] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11762] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11762] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11762] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11762] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11762] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11762] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11763]}, 88) = 11763
[pid 11762] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
./strace-static-x86_64: Process 11763 attached
[pid 11763] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11763] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11763] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11762] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11763] <... futex resumed>)        = 0
[pid 11763] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11762] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11763] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11763] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11762] <... futex resumed>)        = 0
[pid 11762] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11762] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11763] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11763] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11762] <... futex resumed>)        = 0
[pid 11762] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11762] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11763] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11763] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11762] <... futex resumed>)        = 0
[pid 11762] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11762] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11763] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11763] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11762] <... futex resumed>)        = 0
[pid 11762] exit_group(0)               = ?
[pid 11763] +++ exited with 0 +++
[pid 11762] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11762, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11764
./strace-static-x86_64: Process 11764 attached
[pid 11764] set_robust_list(0x5555874576a0, 24) = 0
[pid 11764] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11764] setpgid(0, 0)               = 0
[pid 11764] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11764] write(3, "1000", 4)         = 4
[pid 11764] close(3)                    = 0
[pid 11764] write(1, "executing program\n", 18executing program
) = 18
[pid 11764] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11764] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11764] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11764] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11764] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11764] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11764] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11765 attached
 => {parent_tid=[11765]}, 88) = 11765
[pid 11764] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11764] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11764] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11765] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11765] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11765] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11765] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11764] <... futex resumed>)        = 0
[pid 11764] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11764] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11765] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11765] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11764] <... futex resumed>)        = 0
[pid 11764] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11764] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11765] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11765] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11764] <... futex resumed>)        = 0
[pid 11764] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11764] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11765] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11765] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11764] <... futex resumed>)        = 0
[pid 11764] exit_group(0)               = ?
[pid 11765] +++ exited with 0 +++
[pid 11764] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11764, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11766
./strace-static-x86_64: Process 11766 attached
[pid 11766] set_robust_list(0x5555874576a0, 24) = 0
[pid 11766] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11766] setpgid(0, 0)               = 0
[pid 11766] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11766] write(3, "1000", 4)         = 4
[pid 11766] close(3)                    = 0
executing program
[pid 11766] write(1, "executing program\n", 18) = 18
[pid 11766] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11766] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11766] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11766] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11766] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11766] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11766] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11767]}, 88) = 11767
[pid 11766] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11766] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11766] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11767 attached
 <unfinished ...>
[pid 11767] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11767] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11767] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11767] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11766] <... futex resumed>)        = 0
[pid 11766] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11766] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11767] <... futex resumed>)        = 1
[pid 11767] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11767] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11766] <... futex resumed>)        = 0
[pid 11766] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11766] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11767] <... futex resumed>)        = 1
[pid 11767] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11767] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11766] <... futex resumed>)        = 0
[pid 11766] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11766] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11767] <... futex resumed>)        = 1
[pid 11767] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11767] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11766] <... futex resumed>)        = 0
[pid 11766] exit_group(0)               = ?
[pid 11767] <... futex resumed>)        = ?
[pid 11767] +++ exited with 0 +++
[pid 11766] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11766, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11768 attached
, child_tidptr=0x555587457690) = 11768
[pid 11768] set_robust_list(0x5555874576a0, 24) = 0
[pid 11768] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11768] setpgid(0, 0)               = 0
[pid 11768] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11768] write(3, "1000", 4)         = 4
[pid 11768] close(3)                    = 0
executing program
[pid 11768] write(1, "executing program\n", 18) = 18
[pid 11768] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11768] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11768] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11768] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11768] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11768] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11768] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11769]}, 88) = 11769
[pid 11768] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11768] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11768] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11769 attached
 <unfinished ...>
[pid 11769] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11769] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11769] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11769] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11768] <... futex resumed>)        = 0
[pid 11768] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11768] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11769] <... futex resumed>)        = 1
[pid 11769] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11769] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11768] <... futex resumed>)        = 0
[pid 11768] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11769] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11768] <... futex resumed>)        = 0
[pid 11768] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11769] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11769] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11769] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11768] <... futex resumed>)        = 0
[pid 11768] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11768] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11769] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11769] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11769] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11768] <... futex resumed>)        = 0
[pid 11768] exit_group(0)               = ?
[pid 11769] <... futex resumed>)        = ?
[pid 11769] +++ exited with 0 +++
[pid 11768] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11768, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11770
./strace-static-x86_64: Process 11770 attached
[pid 11770] set_robust_list(0x5555874576a0, 24) = 0
[pid 11770] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11770] setpgid(0, 0)               = 0
[pid 11770] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11770] write(3, "1000", 4)         = 4
[pid 11770] close(3)                    = 0
[pid 11770] write(1, "executing program\n", 18executing program
) = 18
[pid 11770] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11770] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11770] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11770] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11770] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11770] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11770] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11771 attached
 => {parent_tid=[11771]}, 88) = 11771
[pid 11771] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11770] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11771] <... set_robust_list resumed>) = 0
[pid 11771] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11771] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11770] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11770] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11771] <... futex resumed>)        = 0
[pid 11770] <... futex resumed>)        = 1
[pid 11770] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11771] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11771] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11770] <... futex resumed>)        = 0
[pid 11771] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11770] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11771] <... futex resumed>)        = 0
[pid 11770] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11771] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11771] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11771] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11770] <... futex resumed>)        = 0
[pid 11771] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11770] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11771] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11770] <... futex resumed>)        = 0
[pid 11770] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11771] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11771] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11770] <... futex resumed>)        = 0
[pid 11770] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11770] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11771] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11771] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11770] <... futex resumed>)        = 0
[pid 11771] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11770] exit_group(0)               = ?
[pid 11771] <... futex resumed>)        = ?
[pid 11771] +++ exited with 0 +++
[pid 11770] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11770, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11772
./strace-static-x86_64: Process 11772 attached
[pid 11772] set_robust_list(0x5555874576a0, 24) = 0
[pid 11772] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11772] setpgid(0, 0)               = 0
[pid 11772] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11772] write(3, "1000", 4)         = 4
[pid 11772] close(3)                    = 0
[pid 11772] write(1, "executing program\n", 18executing program
) = 18
[pid 11772] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11772] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11772] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11772] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11772] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11772] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11772] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11773 attached
 <unfinished ...>
[pid 11773] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11773] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11773] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11772] <... clone3 resumed> => {parent_tid=[11773]}, 88) = 11773
[pid 11772] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11772] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11773] <... futex resumed>)        = 0
[pid 11773] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11773] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11773] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11772] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11772] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11773] <... futex resumed>)        = 0
[pid 11773] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11773] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11773] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11772] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11772] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11773] <... futex resumed>)        = 0
[pid 11773] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11773] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11773] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11772] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11772] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11773] <... futex resumed>)        = 0
[pid 11773] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11773] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11773] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11772] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11772] exit_group(0)               = ?
[pid 11773] <... futex resumed>)        = ?
[pid 11773] +++ exited with 0 +++
[pid 11772] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11772, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11774 attached
, child_tidptr=0x555587457690) = 11774
[pid 11774] set_robust_list(0x5555874576a0, 24) = 0
[pid 11774] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11774] setpgid(0, 0)               = 0
[pid 11774] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11774] write(3, "1000", 4)         = 4
[pid 11774] close(3)                    = 0
[pid 11774] write(1, "executing program\n", 18executing program
) = 18
[pid 11774] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11774] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11774] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11774] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11774] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11774] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11774] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11775 attached
 => {parent_tid=[11775]}, 88) = 11775
[pid 11775] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11775] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11775] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11774] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11774] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11775] <... futex resumed>)        = 0
[pid 11775] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11775] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11775] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11774] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11774] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11775] <... futex resumed>)        = 0
[pid 11775] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11775] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11775] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11774] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11774] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11775] <... futex resumed>)        = 0
[pid 11775] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11775] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11775] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11774] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11774] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11775] <... futex resumed>)        = 0
[pid 11774] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11775] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11775] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11775] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11774] <... futex resumed>)        = 0
[pid 11774] exit_group(0 <unfinished ...>
[pid 11775] <... futex resumed>)        = ?
[pid 11774] <... exit_group resumed>)   = ?
[pid 11775] +++ exited with 0 +++
[pid 11774] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11774, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11776
./strace-static-x86_64: Process 11776 attached
[pid 11776] set_robust_list(0x5555874576a0, 24) = 0
[pid 11776] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11776] setpgid(0, 0)               = 0
[pid 11776] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11776] write(3, "1000", 4)         = 4
[pid 11776] close(3)                    = 0
executing program
[pid 11776] write(1, "executing program\n", 18) = 18
[pid 11776] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11776] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11776] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11776] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11776] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11776] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11776] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11777 attached
 => {parent_tid=[11777]}, 88) = 11777
[pid 11776] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11776] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11776] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11777] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11777] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11777] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11777] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11776] <... futex resumed>)        = 0
[pid 11777] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11776] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11776] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11777] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11777] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11776] <... futex resumed>)        = 0
[pid 11776] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11776] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11777] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11777] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11776] <... futex resumed>)        = 0
[pid 11776] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11776] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11777] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11777] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11776] <... futex resumed>)        = 0
[pid 11776] exit_group(0)               = ?
[pid 11777] +++ exited with 0 +++
[pid 11776] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11776, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11778 attached
 <unfinished ...>
[pid 11778] set_robust_list(0x5555874576a0, 24 <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 11778
[pid 11778] <... set_robust_list resumed>) = 0
[pid 11778] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11778] setpgid(0, 0)               = 0
[pid 11778] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11778] write(3, "1000", 4)         = 4
[pid 11778] close(3)                    = 0
[pid 11778] write(1, "executing program\n", 18executing program
) = 18
[pid 11778] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11778] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11778] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11778] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11778] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11778] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11778] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11779 attached
 => {parent_tid=[11779]}, 88) = 11779
[pid 11779] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11779] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11779] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11778] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11778] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11779] <... futex resumed>)        = 0
[pid 11779] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11779] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11779] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11778] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11778] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11779] <... futex resumed>)        = 0
[pid 11779] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11779] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11779] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11778] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11778] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11779] <... futex resumed>)        = 0
[pid 11779] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11779] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11779] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11778] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11778] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11779] <... futex resumed>)        = 0
[pid 11779] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11779] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11779] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11778] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11778] exit_group(0)               = ?
[pid 11779] <... futex resumed>)        = ?
[pid 11779] +++ exited with 0 +++
[pid 11778] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11778, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11780
./strace-static-x86_64: Process 11780 attached
[pid 11780] set_robust_list(0x5555874576a0, 24) = 0
[pid 11780] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11780] setpgid(0, 0)               = 0
[pid 11780] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11780] write(3, "1000", 4)         = 4
[pid 11780] close(3)                    = 0
[pid 11780] write(1, "executing program\n", 18executing program
) = 18
[pid 11780] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11780] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11780] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11780] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11780] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11780] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11780] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11781 attached
 => {parent_tid=[11781]}, 88) = 11781
[pid 11780] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11780] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11780] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11781] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11781] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11781] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11781] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11780] <... futex resumed>)        = 0
[pid 11780] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11780] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11781] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11781] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11780] <... futex resumed>)        = 0
[pid 11780] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11780] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11781] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11781] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11780] <... futex resumed>)        = 0
[pid 11780] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11780] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11781] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11781] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11780] <... futex resumed>)        = 0
[pid 11780] exit_group(0)               = ?
[pid 11781] +++ exited with 0 +++
[pid 11780] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11780, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11782
./strace-static-x86_64: Process 11782 attached
[pid 11782] set_robust_list(0x5555874576a0, 24) = 0
[pid 11782] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11782] setpgid(0, 0)               = 0
[pid 11782] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11782] write(3, "1000", 4)         = 4
[pid 11782] close(3)                    = 0
executing program
[pid 11782] write(1, "executing program\n", 18) = 18
[pid 11782] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11782] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11782] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11782] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11782] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11782] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11782] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11783]}, 88) = 11783
./strace-static-x86_64: Process 11783 attached
[pid 11782] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11782] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11782] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11783] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11783] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11783] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11783] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11782] <... futex resumed>)        = 0
[pid 11782] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11782] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11783] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11783] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11782] <... futex resumed>)        = 0
[pid 11782] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11782] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11783] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11783] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11782] <... futex resumed>)        = 0
[pid 11782] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11782] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11783] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11783] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11782] <... futex resumed>)        = 0
[pid 11782] exit_group(0)               = ?
[pid 11783] +++ exited with 0 +++
[pid 11782] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11782, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11784 attached
, child_tidptr=0x555587457690) = 11784
[pid 11784] set_robust_list(0x5555874576a0, 24) = 0
[pid 11784] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11784] setpgid(0, 0)               = 0
[pid 11784] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11784] write(3, "1000", 4)         = 4
[pid 11784] close(3executing program
)                    = 0
[pid 11784] write(1, "executing program\n", 18) = 18
[pid 11784] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11784] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11784] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11784] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11784] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11784] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11784] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11785]}, 88) = 11785
[pid 11784] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11784] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11784] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11785 attached
 <unfinished ...>
[pid 11785] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11785] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11785] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11785] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11784] <... futex resumed>)        = 0
[pid 11784] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11784] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11785] <... futex resumed>)        = 1
[pid 11785] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11785] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11784] <... futex resumed>)        = 0
[pid 11785] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11784] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11784] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11785] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11785] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11784] <... futex resumed>)        = 0
[pid 11784] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11784] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11785] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11785] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11784] <... futex resumed>)        = 0
[pid 11785] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11784] exit_group(0 <unfinished ...>
[pid 11785] <... futex resumed>)        = ?
[pid 11784] <... exit_group resumed>)   = ?
[pid 11785] +++ exited with 0 +++
[pid 11784] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11784, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11786
./strace-static-x86_64: Process 11786 attached
[pid 11786] set_robust_list(0x5555874576a0, 24) = 0
[pid 11786] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11786] setpgid(0, 0)               = 0
[pid 11786] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11786] write(3, "1000", 4)         = 4
[pid 11786] close(3)                    = 0
executing program
[pid 11786] write(1, "executing program\n", 18) = 18
[pid 11786] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11786] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11786] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11786] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11786] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11786] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11786] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11787 attached
 => {parent_tid=[11787]}, 88) = 11787
[pid 11786] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11786] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11786] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11787] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11787] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11787] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11787] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11786] <... futex resumed>)        = 0
[pid 11786] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11786] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11787] <... futex resumed>)        = 1
[pid 11787] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11787] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11786] <... futex resumed>)        = 0
[pid 11786] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11786] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11787] <... futex resumed>)        = 1
[pid 11787] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11787] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11786] <... futex resumed>)        = 0
[pid 11786] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11786] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11787] <... futex resumed>)        = 1
[pid 11787] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11787] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11786] <... futex resumed>)        = 0
[pid 11786] exit_group(0)               = ?
[pid 11787] <... futex resumed>)        = ?
[pid 11787] +++ exited with 0 +++
[pid 11786] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11786, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11788
./strace-static-x86_64: Process 11788 attached
[pid 11788] set_robust_list(0x5555874576a0, 24) = 0
[pid 11788] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11788] setpgid(0, 0)               = 0
[pid 11788] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11788] write(3, "1000", 4)         = 4
[pid 11788] close(3)                    = 0
executing program
[pid 11788] write(1, "executing program\n", 18) = 18
[pid 11788] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11788] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11788] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11788] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11788] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11788] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11788] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11789 attached
 <unfinished ...>
[pid 11789] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11788] <... clone3 resumed> => {parent_tid=[11789]}, 88) = 11789
[pid 11788] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11788] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11789] <... set_robust_list resumed>) = 0
[pid 11788] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11789] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11789] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11789] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11788] <... futex resumed>)        = 0
[pid 11788] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11788] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11789] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11789] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11788] <... futex resumed>)        = 0
[pid 11788] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11788] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11789] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11789] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11788] <... futex resumed>)        = 0
[pid 11788] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11788] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11789] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11789] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11788] <... futex resumed>)        = 0
[pid 11788] exit_group(0)               = ?
[pid 11789] +++ exited with 0 +++
[pid 11788] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11788, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11790 attached
, child_tidptr=0x555587457690) = 11790
[pid 11790] set_robust_list(0x5555874576a0, 24) = 0
[pid 11790] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11790] setpgid(0, 0)               = 0
[pid 11790] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11790] write(3, "1000", 4)         = 4
[pid 11790] close(3)                    = 0
[pid 11790] write(1, "executing program\n", 18executing program
) = 18
[pid 11790] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11790] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11790] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11790] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11790] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11790] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11790] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11791 attached
 => {parent_tid=[11791]}, 88) = 11791
[pid 11791] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11791] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11790] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11791] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11791] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11790] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11790] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11791] <... futex resumed>)        = 0
[pid 11790] <... futex resumed>)        = 1
[pid 11791] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11790] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11791] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11791] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11791] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11790] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11790] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11791] <... futex resumed>)        = 0
[pid 11790] <... futex resumed>)        = 1
[pid 11791] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11791] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11791] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11790] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11790] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11791] <... futex resumed>)        = 0
[pid 11790] <... futex resumed>)        = 1
[pid 11791] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11791] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11791] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11790] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11790] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11791] <... futex resumed>)        = 0
[pid 11790] <... futex resumed>)        = 1
[pid 11791] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11791] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11791] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11790] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11790] exit_group(0 <unfinished ...>
[pid 11791] <... futex resumed>)        = ?
[pid 11790] <... exit_group resumed>)   = ?
[pid 11791] +++ exited with 0 +++
[pid 11790] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11790, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11792
./strace-static-x86_64: Process 11792 attached
[pid 11792] set_robust_list(0x5555874576a0, 24) = 0
[pid 11792] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11792] setpgid(0, 0)               = 0
[pid 11792] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11792] write(3, "1000", 4)         = 4
executing program
[pid 11792] close(3)                    = 0
[pid 11792] write(1, "executing program\n", 18) = 18
[pid 11792] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11792] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11792] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11792] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11792] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11792] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11792] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11793 attached
 => {parent_tid=[11793]}, 88) = 11793
[pid 11792] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11792] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11792] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11793] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11793] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11793] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11793] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11792] <... futex resumed>)        = 0
[pid 11792] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11792] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11793] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11793] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11792] <... futex resumed>)        = 0
[pid 11792] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11792] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11793] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11793] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11792] <... futex resumed>)        = 0
[pid 11792] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11792] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11793] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11793] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11792] <... futex resumed>)        = 0
[pid 11792] exit_group(0)               = ?
[pid 11793] +++ exited with 0 +++
[pid 11792] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11792, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11794
./strace-static-x86_64: Process 11794 attached
[pid 11794] set_robust_list(0x5555874576a0, 24) = 0
[pid 11794] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11794] setpgid(0, 0)               = 0
[pid 11794] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11794] write(3, "1000", 4)         = 4
[pid 11794] close(3)                    = 0
[pid 11794] write(1, "executing program\n", 18executing program
) = 18
[pid 11794] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11794] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11794] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11794] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11794] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11794] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11794] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11795 attached
 <unfinished ...>
[pid 11795] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11795] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11795] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11794] <... clone3 resumed> => {parent_tid=[11795]}, 88) = 11795
[pid 11794] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11794] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11795] <... futex resumed>)        = 0
[pid 11795] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11795] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11795] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11794] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11794] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11795] <... futex resumed>)        = 0
[pid 11795] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11795] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11795] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11794] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11794] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11795] <... futex resumed>)        = 0
[pid 11795] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11794] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11795] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11795] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11794] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11794] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11795] <... futex resumed>)        = 0
[pid 11795] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11795] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11795] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11794] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11794] exit_group(0)               = ?
[pid 11795] <... futex resumed>)        = ?
[pid 11795] +++ exited with 0 +++
[pid 11794] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11794, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11796 attached
, child_tidptr=0x555587457690) = 11796
[pid 11796] set_robust_list(0x5555874576a0, 24) = 0
[pid 11796] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11796] setpgid(0, 0)               = 0
[pid 11796] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11796] write(3, "1000", 4executing program
)         = 4
[pid 11796] close(3)                    = 0
[pid 11796] write(1, "executing program\n", 18) = 18
[pid 11796] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11796] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11796] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11796] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11796] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11796] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11796] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11797 attached
 => {parent_tid=[11797]}, 88) = 11797
[pid 11797] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11796] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11796] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11796] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11797] <... set_robust_list resumed>) = 0
[pid 11797] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11797] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11797] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11796] <... futex resumed>)        = 0
[pid 11796] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11796] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11797] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11797] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11796] <... futex resumed>)        = 0
[pid 11796] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11796] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11797] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11797] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11796] <... futex resumed>)        = 0
[pid 11796] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11796] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11797] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11797] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11796] <... futex resumed>)        = 0
[pid 11796] exit_group(0)               = ?
[pid 11797] +++ exited with 0 +++
[pid 11796] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11796, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11798
./strace-static-x86_64: Process 11798 attached
[pid 11798] set_robust_list(0x5555874576a0, 24) = 0
[pid 11798] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11798] setpgid(0, 0)               = 0
[pid 11798] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11798] write(3, "1000", 4)         = 4
[pid 11798] close(3executing program
)                    = 0
[pid 11798] write(1, "executing program\n", 18) = 18
[pid 11798] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11798] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11798] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11798] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11798] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11798] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11798] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11799]}, 88) = 11799
./strace-static-x86_64: Process 11799 attached
[pid 11799] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11798] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11799] <... set_robust_list resumed>) = 0
[pid 11798] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11799] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11798] <... futex resumed>)        = 0
[pid 11798] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11799] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11799] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11798] <... futex resumed>)        = 0
[pid 11799] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11798] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11799] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11798] <... futex resumed>)        = 0
[pid 11799] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11798] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11799] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11799] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11798] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11799] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11798] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11799] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11798] <... futex resumed>)        = 0
[pid 11799] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11798] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11799] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11799] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11798] <... futex resumed>)        = 0
[pid 11798] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11798] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11799] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11799] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11798] <... futex resumed>)        = 0
[pid 11798] exit_group(0)               = ?
[pid 11799] +++ exited with 0 +++
[pid 11798] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11798, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11800
./strace-static-x86_64: Process 11800 attached
[pid 11800] set_robust_list(0x5555874576a0, 24) = 0
[pid 11800] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11800] setpgid(0, 0)               = 0
[pid 11800] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11800] write(3, "1000", 4)         = 4
[pid 11800] close(3)                    = 0
[pid 11800] write(1, "executing program\n", 18executing program
) = 18
[pid 11800] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11800] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11800] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11800] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11800] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11800] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11800] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11801 attached
 => {parent_tid=[11801]}, 88) = 11801
[pid 11800] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11800] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11800] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11801] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11801] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11801] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11801] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11800] <... futex resumed>)        = 0
[pid 11800] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11800] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11801] <... futex resumed>)        = 1
[pid 11801] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11801] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11800] <... futex resumed>)        = 0
[pid 11800] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11800] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11801] <... futex resumed>)        = 1
[pid 11801] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11801] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11800] <... futex resumed>)        = 0
[pid 11800] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11800] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11801] <... futex resumed>)        = 1
[pid 11801] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11801] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11800] <... futex resumed>)        = 0
[pid 11800] exit_group(0)               = ?
[pid 11801] <... futex resumed>)        = ?
[pid 11801] +++ exited with 0 +++
[pid 11800] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11800, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11802 attached
, child_tidptr=0x555587457690) = 11802
[pid 11802] set_robust_list(0x5555874576a0, 24) = 0
[pid 11802] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11802] setpgid(0, 0)               = 0
[pid 11802] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11802] write(3, "1000", 4)         = 4
[pid 11802] close(3)                    = 0
[pid 11802] write(1, "executing program\n", 18executing program
) = 18
[pid 11802] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11802] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11802] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11802] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11802] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11802] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11802] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11803 attached
 => {parent_tid=[11803]}, 88) = 11803
[pid 11802] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11802] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11802] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11803] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11803] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11803] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11803] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11802] <... futex resumed>)        = 0
[pid 11802] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11802] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11803] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11803] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11802] <... futex resumed>)        = 0
[pid 11802] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11802] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11803] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11803] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11802] <... futex resumed>)        = 0
[pid 11802] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11802] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11803] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11803] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11802] <... futex resumed>)        = 0
[pid 11802] exit_group(0 <unfinished ...>
[pid 11803] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11802] <... exit_group resumed>)   = ?
[pid 11803] <... futex resumed>)        = ?
[pid 11803] +++ exited with 0 +++
[pid 11802] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11802, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11804
./strace-static-x86_64: Process 11804 attached
[pid 11804] set_robust_list(0x5555874576a0, 24) = 0
[pid 11804] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11804] setpgid(0, 0)               = 0
[pid 11804] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11804] write(3, "1000", 4)         = 4
[pid 11804] close(3executing program
)                    = 0
[pid 11804] write(1, "executing program\n", 18) = 18
[pid 11804] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11804] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11804] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11804] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11804] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11804] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11804] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11805]}, 88) = 11805
[pid 11804] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11804] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11804] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11805 attached
 <unfinished ...>
[pid 11805] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11805] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11805] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11805] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11804] <... futex resumed>)        = 0
[pid 11804] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11804] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11805] <... futex resumed>)        = 1
[pid 11805] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11805] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11804] <... futex resumed>)        = 0
[pid 11804] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11804] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11805] <... futex resumed>)        = 1
[pid 11805] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11805] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11804] <... futex resumed>)        = 0
[pid 11804] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11804] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11805] <... futex resumed>)        = 1
[pid 11805] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11805] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11804] <... futex resumed>)        = 0
[pid 11804] exit_group(0)               = ?
[pid 11805] +++ exited with 0 +++
[pid 11804] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11804, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11806
./strace-static-x86_64: Process 11806 attached
[pid 11806] set_robust_list(0x5555874576a0, 24) = 0
[pid 11806] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11806] setpgid(0, 0)               = 0
[pid 11806] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11806] write(3, "1000", 4)         = 4
[pid 11806] close(3executing program
)                    = 0
[pid 11806] write(1, "executing program\n", 18) = 18
[pid 11806] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11806] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11806] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11806] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11806] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11806] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11806] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11807]}, 88) = 11807
[pid 11806] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11806] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11806] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11807 attached
 <unfinished ...>
[pid 11807] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11807] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11807] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11807] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11806] <... futex resumed>)        = 0
[pid 11806] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11806] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11807] <... futex resumed>)        = 1
[pid 11807] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11807] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11806] <... futex resumed>)        = 0
[pid 11806] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11806] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11807] <... futex resumed>)        = 1
[pid 11807] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11807] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11806] <... futex resumed>)        = 0
[pid 11806] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11806] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11807] <... futex resumed>)        = 1
[pid 11807] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11807] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11806] <... futex resumed>)        = 0
[pid 11807] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11806] exit_group(0)               = ?
[pid 11807] <... futex resumed>)        = ?
[pid 11807] +++ exited with 0 +++
[pid 11806] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11806, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11808
./strace-static-x86_64: Process 11808 attached
[pid 11808] set_robust_list(0x5555874576a0, 24) = 0
[pid 11808] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11808] setpgid(0, 0)               = 0
[pid 11808] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11808] write(3, "1000", 4)         = 4
[pid 11808] close(3)                    = 0
executing program
[pid 11808] write(1, "executing program\n", 18) = 18
[pid 11808] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11808] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11808] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11808] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11808] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11808] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11808] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11809 attached
 => {parent_tid=[11809]}, 88) = 11809
[pid 11808] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11808] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11808] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11809] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11809] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11809] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11809] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11808] <... futex resumed>)        = 0
[pid 11808] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11808] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11809] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11809] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11808] <... futex resumed>)        = 0
[pid 11808] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11808] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11809] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11809] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11808] <... futex resumed>)        = 0
[pid 11808] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11808] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11809] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11809] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11808] <... futex resumed>)        = 0
[pid 11808] exit_group(0)               = ?
[pid 11809] +++ exited with 0 +++
[pid 11808] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11808, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11810
./strace-static-x86_64: Process 11810 attached
[pid 11810] set_robust_list(0x5555874576a0, 24) = 0
[pid 11810] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11810] setpgid(0, 0)               = 0
[pid 11810] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11810] write(3, "1000", 4)         = 4
[pid 11810] close(3)                    = 0
[pid 11810] write(1, "executing program\n", 18executing program
) = 18
[pid 11810] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11810] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11810] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11810] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11810] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11810] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11810] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11811]}, 88) = 11811
[pid 11810] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11810] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11810] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11811 attached
 <unfinished ...>
[pid 11811] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11811] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11811] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11811] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11810] <... futex resumed>)        = 0
[pid 11810] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11810] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11811] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11811] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11810] <... futex resumed>)        = 0
[pid 11810] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11810] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11811] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11811] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11810] <... futex resumed>)        = 0
[pid 11810] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11810] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11811] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11811] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11810] <... futex resumed>)        = 0
[pid 11810] exit_group(0)               = ?
[pid 11811] +++ exited with 0 +++
[pid 11810] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11810, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11812
./strace-static-x86_64: Process 11812 attached
[pid 11812] set_robust_list(0x5555874576a0, 24) = 0
[pid 11812] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11812] setpgid(0, 0)               = 0
[pid 11812] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11812] write(3, "1000", 4)         = 4
[pid 11812] close(3)                    = 0
[pid 11812] write(1, "executing program\n", 18executing program
) = 18
[pid 11812] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11812] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11812] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11812] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11812] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11812] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11812] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11813 attached
 => {parent_tid=[11813]}, 88) = 11813
[pid 11813] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11812] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11812] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11812] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11813] <... set_robust_list resumed>) = 0
[pid 11813] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11813] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11813] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11812] <... futex resumed>)        = 0
[pid 11812] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11812] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11813] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11813] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11812] <... futex resumed>)        = 0
[pid 11812] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11812] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11813] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11813] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11812] <... futex resumed>)        = 0
[pid 11812] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11812] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11813] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11813] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11812] <... futex resumed>)        = 0
[pid 11812] exit_group(0)               = ?
[pid 11813] +++ exited with 0 +++
[pid 11812] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11812, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11814
./strace-static-x86_64: Process 11814 attached
[pid 11814] set_robust_list(0x5555874576a0, 24) = 0
[pid 11814] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11814] setpgid(0, 0)               = 0
[pid 11814] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11814] write(3, "1000", 4)         = 4
[pid 11814] close(3)                    = 0
[pid 11814] write(1, "executing program\n", 18executing program
) = 18
[pid 11814] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11814] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11814] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11814] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11814] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11814] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11814] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11815]}, 88) = 11815
./strace-static-x86_64: Process 11815 attached
[pid 11814] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11814] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11814] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11815] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11815] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11815] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11815] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11814] <... futex resumed>)        = 0
[pid 11815] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11814] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11815] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11814] <... futex resumed>)        = 0
[pid 11815] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11814] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11815] <... futex resumed>)        = 0
[pid 11814] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11815] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11814] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11815] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11814] <... futex resumed>)        = 0
[pid 11815] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11814] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11815] <... futex resumed>)        = 0
[pid 11814] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11815] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11814] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11815] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11814] <... futex resumed>)        = 0
[pid 11815] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11814] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11815] <... futex resumed>)        = 0
[pid 11814] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11815] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11814] exit_group(0 <unfinished ...>
[pid 11815] <... futex resumed>)        = ?
[pid 11814] <... exit_group resumed>)   = ?
[pid 11815] +++ exited with 0 +++
[pid 11814] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11814, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11816
./strace-static-x86_64: Process 11816 attached
[pid 11816] set_robust_list(0x5555874576a0, 24) = 0
[pid 11816] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11816] setpgid(0, 0)               = 0
[pid 11816] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11816] write(3, "1000", 4)         = 4
[pid 11816] close(3)                    = 0
[pid 11816] write(1, "executing program\n", 18executing program
) = 18
[pid 11816] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11816] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11816] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11816] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11816] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11816] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11816] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11817 attached
 <unfinished ...>
[pid 11817] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11817] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11817] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11816] <... clone3 resumed> => {parent_tid=[11817]}, 88) = 11817
[pid 11816] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11816] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11817] <... futex resumed>)        = 0
[pid 11817] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11817] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11817] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11816] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11816] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11817] <... futex resumed>)        = 0
[pid 11817] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11817] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11817] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11816] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11816] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11817] <... futex resumed>)        = 0
[pid 11817] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11817] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11817] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11816] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11816] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11817] <... futex resumed>)        = 0
[pid 11817] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11816] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11817] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11817] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11816] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11816] exit_group(0)               = ?
[pid 11817] <... futex resumed>)        = ?
[pid 11817] +++ exited with 0 +++
[pid 11816] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11816, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11818
./strace-static-x86_64: Process 11818 attached
[pid 11818] set_robust_list(0x5555874576a0, 24) = 0
[pid 11818] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11818] setpgid(0, 0)               = 0
[pid 11818] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11818] write(3, "1000", 4)         = 4
[pid 11818] close(3)                    = 0
[pid 11818] write(1, "executing program\n", 18executing program
) = 18
[pid 11818] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11818] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11818] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11818] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11818] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11818] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11818] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11819]}, 88) = 11819
[pid 11818] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11818] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11818] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11819 attached
 <unfinished ...>
[pid 11819] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11819] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11819] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11819] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11818] <... futex resumed>)        = 0
[pid 11818] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11818] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11819] <... futex resumed>)        = 1
[pid 11819] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11819] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11818] <... futex resumed>)        = 0
[pid 11818] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11818] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11819] <... futex resumed>)        = 1
[pid 11819] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11819] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11818] <... futex resumed>)        = 0
[pid 11818] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11818] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11819] <... futex resumed>)        = 1
[pid 11819] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11819] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11818] <... futex resumed>)        = 0
[pid 11818] exit_group(0)               = ?
[pid 11819] <... futex resumed>)        = ?
[pid 11819] +++ exited with 0 +++
[pid 11818] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11818, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11820
./strace-static-x86_64: Process 11820 attached
[pid 11820] set_robust_list(0x5555874576a0, 24) = 0
[pid 11820] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11820] setpgid(0, 0)               = 0
[pid 11820] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11820] write(3, "1000", 4)         = 4
[pid 11820] close(3)                    = 0
[pid 11820] write(1, "executing program\n", 18executing program
) = 18
[pid 11820] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11820] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11820] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11820] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11820] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11820] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11820] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11821 attached
 => {parent_tid=[11821]}, 88) = 11821
[pid 11820] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11820] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11820] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11821] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11821] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11821] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11821] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11820] <... futex resumed>)        = 0
[pid 11820] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11821] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11820] <... futex resumed>)        = 0
[pid 11820] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11821] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11820] <... futex resumed>)        = 0
[pid 11820] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11820] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11821] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11821] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11820] <... futex resumed>)        = 0
[pid 11820] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11820] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11821] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11821] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11820] <... futex resumed>)        = 0
[pid 11820] exit_group(0)               = ?
[pid 11821] +++ exited with 0 +++
[pid 11820] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11820, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11822
./strace-static-x86_64: Process 11822 attached
[pid 11822] set_robust_list(0x5555874576a0, 24) = 0
[pid 11822] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11822] setpgid(0, 0)               = 0
[pid 11822] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11822] write(3, "1000", 4)         = 4
[pid 11822] close(3)                    = 0
executing program
[pid 11822] write(1, "executing program\n", 18) = 18
[pid 11822] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11822] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11822] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11822] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11822] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11822] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11822] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11823 attached
 => {parent_tid=[11823]}, 88) = 11823
[pid 11823] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11823] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11823] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11822] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11822] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11823] <... futex resumed>)        = 0
[pid 11823] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11822] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11823] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11823] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11822] <... futex resumed>)        = 0
[pid 11822] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11823] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11822] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11823] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11823] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11822] <... futex resumed>)        = 0
[pid 11822] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11822] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11823] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11823] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11822] <... futex resumed>)        = 0
[pid 11822] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11822] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11823] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11823] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11822] <... futex resumed>)        = 0
[pid 11822] exit_group(0)               = ?
[pid 11823] +++ exited with 0 +++
[pid 11822] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11822, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11824 attached
, child_tidptr=0x555587457690) = 11824
[pid 11824] set_robust_list(0x5555874576a0, 24) = 0
[pid 11824] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11824] setpgid(0, 0)               = 0
[pid 11824] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11824] write(3, "1000", 4)         = 4
[pid 11824] close(3)                    = 0
executing program
[pid 11824] write(1, "executing program\n", 18) = 18
[pid 11824] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11824] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11824] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11824] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11824] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11824] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11824] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11825]}, 88) = 11825
[pid 11824] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11824] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11824] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11825 attached
 <unfinished ...>
[pid 11825] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11825] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11825] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11825] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11824] <... futex resumed>)        = 0
[pid 11824] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11824] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11825] <... futex resumed>)        = 1
[pid 11825] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11825] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11824] <... futex resumed>)        = 0
[pid 11824] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11824] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11825] <... futex resumed>)        = 1
[pid 11825] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11825] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11824] <... futex resumed>)        = 0
[pid 11824] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11824] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11825] <... futex resumed>)        = 1
[pid 11825] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11825] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11824] <... futex resumed>)        = 0
[pid 11824] exit_group(0)               = ?
[pid 11825] <... futex resumed>)        = ?
[pid 11825] +++ exited with 0 +++
[pid 11824] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11824, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11826
./strace-static-x86_64: Process 11826 attached
[pid 11826] set_robust_list(0x5555874576a0, 24) = 0
[pid 11826] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11826] setpgid(0, 0)               = 0
[pid 11826] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11826] write(3, "1000", 4)         = 4
[pid 11826] close(3)                    = 0
[pid 11826] write(1, "executing program\n", 18executing program
) = 18
[pid 11826] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11826] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11826] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11826] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11826] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11826] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11826] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11827]}, 88) = 11827
[pid 11826] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11826] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11826] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11827 attached
 <unfinished ...>
[pid 11827] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11827] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11827] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11827] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11826] <... futex resumed>)        = 0
[pid 11826] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11826] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11827] <... futex resumed>)        = 1
[pid 11827] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11827] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11826] <... futex resumed>)        = 0
[pid 11826] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11826] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11827] <... futex resumed>)        = 1
[pid 11827] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11827] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11826] <... futex resumed>)        = 0
[pid 11826] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11826] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11827] <... futex resumed>)        = 1
[pid 11827] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11827] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11826] <... futex resumed>)        = 0
[pid 11826] exit_group(0)               = ?
[pid 11827] <... futex resumed>)        = ?
[pid 11827] +++ exited with 0 +++
[pid 11826] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11826, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11828
./strace-static-x86_64: Process 11828 attached
[pid 11828] set_robust_list(0x5555874576a0, 24) = 0
[pid 11828] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11828] setpgid(0, 0)               = 0
[pid 11828] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11828] write(3, "1000", 4)         = 4
[pid 11828] close(3)                    = 0
executing program
[pid 11828] write(1, "executing program\n", 18) = 18
[pid 11828] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11828] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11828] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11828] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11828] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11828] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11828] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11829 attached
 => {parent_tid=[11829]}, 88) = 11829
[pid 11828] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11828] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11828] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11829] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11829] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11829] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11829] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11828] <... futex resumed>)        = 0
[pid 11828] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11829] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11828] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11829] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11829] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11828] <... futex resumed>)        = 0
[pid 11828] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11828] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11829] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11829] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11828] <... futex resumed>)        = 0
[pid 11828] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11828] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11829] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11829] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11828] <... futex resumed>)        = 0
[pid 11828] exit_group(0)               = ?
[pid 11829] +++ exited with 0 +++
[pid 11828] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11828, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11830
./strace-static-x86_64: Process 11830 attached
[pid 11830] set_robust_list(0x5555874576a0, 24) = 0
[pid 11830] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11830] setpgid(0, 0)               = 0
[pid 11830] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11830] write(3, "1000", 4)         = 4
[pid 11830] close(3)                    = 0
[pid 11830] write(1, "executing program\n", 18executing program
) = 18
[pid 11830] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11830] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11830] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11830] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11830] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11830] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11830] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11831 attached
 <unfinished ...>
[pid 11831] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11831] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11831] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11830] <... clone3 resumed> => {parent_tid=[11831]}, 88) = 11831
[pid 11830] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11830] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11831] <... futex resumed>)        = 0
[pid 11831] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11831] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11831] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11830] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11830] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11831] <... futex resumed>)        = 0
[pid 11831] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11831] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11831] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11830] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11830] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11831] <... futex resumed>)        = 0
[pid 11830] <... futex resumed>)        = 1
[pid 11831] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11830] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11831] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11831] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11830] <... futex resumed>)        = 0
[pid 11831] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11830] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11831] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11830] <... futex resumed>)        = 0
[pid 11830] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11831] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11831] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11830] <... futex resumed>)        = 0
[pid 11831] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11830] exit_group(0)               = ?
[pid 11831] <... futex resumed>)        = ?
[pid 11831] +++ exited with 0 +++
[pid 11830] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11830, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11832 attached
, child_tidptr=0x555587457690) = 11832
[pid 11832] set_robust_list(0x5555874576a0, 24) = 0
[pid 11832] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11832] setpgid(0, 0)               = 0
[pid 11832] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11832] write(3, "1000", 4)         = 4
[pid 11832] close(3)                    = 0
[pid 11832] write(1, "executing program\n", 18executing program
) = 18
[pid 11832] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11832] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11832] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11832] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11832] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11832] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11832] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11833 attached
 => {parent_tid=[11833]}, 88) = 11833
[pid 11833] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11833] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11833] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11832] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11832] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11833] <... futex resumed>)        = 0
[pid 11833] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11832] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11833] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11833] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11832] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11832] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11833] <... futex resumed>)        = 0
[pid 11833] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11833] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11833] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11832] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11832] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11832] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11833] <... futex resumed>)        = 0
[pid 11833] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11833] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11832] <... futex resumed>)        = 0
[pid 11833] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11832] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11832] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11833] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11833] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11833] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11832] <... futex resumed>)        = 0
[pid 11832] exit_group(0)               = ?
[pid 11833] +++ exited with 0 +++
[pid 11832] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11832, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11834
./strace-static-x86_64: Process 11834 attached
[pid 11834] set_robust_list(0x5555874576a0, 24) = 0
[pid 11834] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11834] setpgid(0, 0)               = 0
[pid 11834] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11834] write(3, "1000", 4)         = 4
[pid 11834] close(3)                    = 0
[pid 11834] write(1, "executing program\n", 18executing program
) = 18
[pid 11834] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11834] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11834] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11834] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11834] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11834] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11834] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11835 attached
 => {parent_tid=[11835]}, 88) = 11835
[pid 11835] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11834] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11835] <... set_robust_list resumed>) = 0
[pid 11834] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11835] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11834] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11835] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11834] <... futex resumed>)        = 0
[pid 11835] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11834] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11835] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11835] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11834] <... futex resumed>)        = 0
[pid 11834] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11834] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11835] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11835] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11834] <... futex resumed>)        = 0
[pid 11834] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11834] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11835] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11835] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11834] <... futex resumed>)        = 0
[pid 11834] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11834] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11835] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11835] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11834] <... futex resumed>)        = 0
[pid 11834] exit_group(0)               = ?
[pid 11835] +++ exited with 0 +++
[pid 11834] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11834, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11836
./strace-static-x86_64: Process 11836 attached
[pid 11836] set_robust_list(0x5555874576a0, 24) = 0
[pid 11836] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11836] setpgid(0, 0)               = 0
[pid 11836] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11836] write(3, "1000", 4)         = 4
[pid 11836] close(3)                    = 0
[pid 11836] write(1, "executing program\n", 18executing program
) = 18
[pid 11836] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11836] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11836] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11836] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11836] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11836] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11836] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11837]}, 88) = 11837
[pid 11836] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11836] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11836] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11837 attached
 <unfinished ...>
[pid 11837] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11837] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11837] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11837] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11836] <... futex resumed>)        = 0
[pid 11836] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11836] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11837] <... futex resumed>)        = 1
[pid 11837] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11837] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11836] <... futex resumed>)        = 0
[pid 11836] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11836] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11837] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11837] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11836] <... futex resumed>)        = 0
[pid 11836] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11836] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11837] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11837] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11836] <... futex resumed>)        = 0
[pid 11836] exit_group(0 <unfinished ...>
[pid 11837] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11836] <... exit_group resumed>)   = ?
[pid 11837] <... futex resumed>)        = ?
[pid 11837] +++ exited with 0 +++
[pid 11836] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11836, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11838
./strace-static-x86_64: Process 11838 attached
[pid 11838] set_robust_list(0x5555874576a0, 24) = 0
[pid 11838] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11838] setpgid(0, 0)               = 0
[pid 11838] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11838] write(3, "1000", 4)         = 4
[pid 11838] close(3)                    = 0
executing program
[pid 11838] write(1, "executing program\n", 18) = 18
[pid 11838] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11838] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11838] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11838] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11838] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11838] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11838] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11839 attached
 => {parent_tid=[11839]}, 88) = 11839
[pid 11839] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11838] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11839] <... set_robust_list resumed>) = 0
[pid 11838] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11839] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11838] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11839] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11838] <... futex resumed>)        = 0
[pid 11839] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11838] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11839] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11839] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11838] <... futex resumed>)        = 0
[pid 11838] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11838] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11839] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11839] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11838] <... futex resumed>)        = 0
[pid 11838] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11838] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11839] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11839] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11838] <... futex resumed>)        = 0
[pid 11838] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11838] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11839] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11839] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11838] <... futex resumed>)        = 0
[pid 11838] exit_group(0)               = ?
[pid 11839] +++ exited with 0 +++
[pid 11838] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11838, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11840
./strace-static-x86_64: Process 11840 attached
[pid 11840] set_robust_list(0x5555874576a0, 24) = 0
[pid 11840] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11840] setpgid(0, 0)               = 0
[pid 11840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11840] write(3, "1000", 4)         = 4
executing program
[pid 11840] close(3)                    = 0
[pid 11840] write(1, "executing program\n", 18) = 18
[pid 11840] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11840] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11840] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11840] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11840] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11840] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11840] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11841]}, 88) = 11841
./strace-static-x86_64: Process 11841 attached
[pid 11840] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11840] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11840] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11841] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11841] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11841] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11841] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11840] <... futex resumed>)        = 0
[pid 11840] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11840] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11841] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11841] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11840] <... futex resumed>)        = 0
[pid 11840] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11840] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11841] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11841] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11840] <... futex resumed>)        = 0
[pid 11840] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11840] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11841] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11841] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11840] <... futex resumed>)        = 0
[pid 11840] exit_group(0)               = ?
[pid 11841] +++ exited with 0 +++
[pid 11840] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11840, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11842
./strace-static-x86_64: Process 11842 attached
[pid 11842] set_robust_list(0x5555874576a0, 24) = 0
[pid 11842] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11842] setpgid(0, 0)               = 0
[pid 11842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11842] write(3, "1000", 4)         = 4
[pid 11842] close(3)                    = 0
executing program
[pid 11842] write(1, "executing program\n", 18) = 18
[pid 11842] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11842] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11842] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11842] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11842] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11842] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11842] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11843]}, 88) = 11843
./strace-static-x86_64: Process 11843 attached
[pid 11843] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11843] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11843] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11842] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11842] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11843] <... futex resumed>)        = 0
[pid 11842] <... futex resumed>)        = 1
[pid 11843] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11842] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11843] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11843] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11843] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11842] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11842] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11843] <... futex resumed>)        = 0
[pid 11842] <... futex resumed>)        = 1
[pid 11843] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11842] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11843] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11843] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11843] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11842] <... futex resumed>)        = 0
[pid 11842] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11843] <... futex resumed>)        = 0
[pid 11842] <... futex resumed>)        = 1
[pid 11843] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11842] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11843] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11843] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11842] <... futex resumed>)        = 0
[pid 11843] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11842] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11843] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11842] <... futex resumed>)        = 0
[pid 11843] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11842] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11843] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11843] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11842] <... futex resumed>)        = 0
[pid 11843] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11842] exit_group(0 <unfinished ...>
[pid 11843] <... futex resumed>)        = ?
[pid 11842] <... exit_group resumed>)   = ?
[pid 11843] +++ exited with 0 +++
[pid 11842] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11842, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11844
./strace-static-x86_64: Process 11844 attached
[pid 11844] set_robust_list(0x5555874576a0, 24) = 0
[pid 11844] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11844] setpgid(0, 0)               = 0
[pid 11844] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11844] write(3, "1000", 4)         = 4
[pid 11844] close(3)                    = 0
[pid 11844] write(1, "executing program\n", 18executing program
) = 18
[pid 11844] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11844] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11844] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11844] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11844] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11844] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11844] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11845 attached
 => {parent_tid=[11845]}, 88) = 11845
[pid 11845] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11844] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11844] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11844] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11845] <... set_robust_list resumed>) = 0
[pid 11845] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11845] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11845] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11844] <... futex resumed>)        = 0
[pid 11844] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11844] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11845] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11845] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11844] <... futex resumed>)        = 0
[pid 11844] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11845] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11844] <... futex resumed>)        = 0
[pid 11844] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11845] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11845] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11844] <... futex resumed>)        = 0
[pid 11844] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11844] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11845] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11845] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11844] <... futex resumed>)        = 0
[pid 11844] exit_group(0 <unfinished ...>
[pid 11845] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11844] <... exit_group resumed>)   = ?
[pid 11845] <... futex resumed>)        = ?
[pid 11845] +++ exited with 0 +++
[pid 11844] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11844, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11846 attached
, child_tidptr=0x555587457690) = 11846
[pid 11846] set_robust_list(0x5555874576a0, 24) = 0
[pid 11846] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11846] setpgid(0, 0)               = 0
[pid 11846] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11846] write(3, "1000", 4)         = 4
[pid 11846] close(3)                    = 0
[pid 11846] write(1, "executing program\n", 18executing program
) = 18
[pid 11846] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11846] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11846] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11846] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11846] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11846] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11846] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11847]}, 88) = 11847
./strace-static-x86_64: Process 11847 attached
[pid 11847] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11847] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11847] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11846] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11846] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11847] <... futex resumed>)        = 0
[pid 11847] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11846] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11847] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11847] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11847] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11846] <... futex resumed>)        = 0
[pid 11846] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11847] <... futex resumed>)        = 0
[pid 11847] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11846] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11847] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11847] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11846] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11846] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11847] <... futex resumed>)        = 0
[pid 11847] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11847] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11847] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11846] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11846] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11847] <... futex resumed>)        = 0
[pid 11846] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11847] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11847] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11846] <... futex resumed>)        = 0
[pid 11847] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11846] exit_group(0 <unfinished ...>
[pid 11847] <... futex resumed>)        = ?
[pid 11846] <... exit_group resumed>)   = ?
[pid 11847] +++ exited with 0 +++
[pid 11846] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11846, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11848
./strace-static-x86_64: Process 11848 attached
[pid 11848] set_robust_list(0x5555874576a0, 24) = 0
[pid 11848] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11848] setpgid(0, 0)               = 0
[pid 11848] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11848] write(3, "1000", 4)         = 4
[pid 11848] close(3executing program
)                    = 0
[pid 11848] write(1, "executing program\n", 18) = 18
[pid 11848] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11848] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11848] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11848] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11848] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11848] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11848] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11849 attached
 => {parent_tid=[11849]}, 88) = 11849
[pid 11849] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11848] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11849] <... set_robust_list resumed>) = 0
[pid 11849] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11849] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11848] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11848] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11849] <... futex resumed>)        = 0
[pid 11849] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11848] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11849] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11849] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11849] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11848] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11848] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11849] <... futex resumed>)        = 0
[pid 11849] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11849] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11849] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11848] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11848] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11849] <... futex resumed>)        = 0
[pid 11849] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11849] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11849] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11848] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11848] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11849] <... futex resumed>)        = 0
[pid 11848] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11849] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11849] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11848] <... futex resumed>)        = 0
[pid 11849] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11848] exit_group(0 <unfinished ...>
[pid 11849] <... futex resumed>)        = ?
[pid 11848] <... exit_group resumed>)   = ?
[pid 11849] +++ exited with 0 +++
[pid 11848] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11848, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11850
./strace-static-x86_64: Process 11850 attached
[pid 11850] set_robust_list(0x5555874576a0, 24) = 0
[pid 11850] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11850] setpgid(0, 0)               = 0
[pid 11850] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11850] write(3, "1000", 4)         = 4
[pid 11850] close(3)                    = 0
[pid 11850] write(1, "executing program\n", 18executing program
) = 18
[pid 11850] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11850] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11850] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11850] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11850] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11850] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11850] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11851 attached
 <unfinished ...>
[pid 11851] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11851] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11851] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11850] <... clone3 resumed> => {parent_tid=[11851]}, 88) = 11851
[pid 11850] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11850] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11851] <... futex resumed>)        = 0
[pid 11851] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11851] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11851] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11850] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11850] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11851] <... futex resumed>)        = 0
[pid 11851] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11851] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11851] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11850] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11850] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11851] <... futex resumed>)        = 0
[pid 11851] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11851] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11851] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11850] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11850] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11851] <... futex resumed>)        = 0
[pid 11851] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11851] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11851] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11850] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11850] exit_group(0)               = ?
[pid 11851] <... futex resumed>)        = ?
[pid 11851] +++ exited with 0 +++
[pid 11850] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11850, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11852
./strace-static-x86_64: Process 11852 attached
[pid 11852] set_robust_list(0x5555874576a0, 24) = 0
[pid 11852] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11852] setpgid(0, 0)               = 0
[pid 11852] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11852] write(3, "1000", 4)         = 4
[pid 11852] close(3)                    = 0
[pid 11852] write(1, "executing program\n", 18executing program
) = 18
[pid 11852] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11852] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11852] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11852] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11852] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11852] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11852] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11853 attached
 => {parent_tid=[11853]}, 88) = 11853
[pid 11852] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11852] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11852] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11853] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11853] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11853] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11853] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11852] <... futex resumed>)        = 0
[pid 11852] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11852] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11853] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11853] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11852] <... futex resumed>)        = 0
[pid 11852] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11852] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11853] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11853] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11852] <... futex resumed>)        = 0
[pid 11852] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11852] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11853] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11853] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11852] <... futex resumed>)        = 0
[pid 11852] exit_group(0)               = ?
[pid 11853] +++ exited with 0 +++
[pid 11852] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11852, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11854 attached
, child_tidptr=0x555587457690) = 11854
[pid 11854] set_robust_list(0x5555874576a0, 24) = 0
[pid 11854] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11854] setpgid(0, 0)               = 0
[pid 11854] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11854] write(3, "1000", 4)         = 4
[pid 11854] close(3executing program
)                    = 0
[pid 11854] write(1, "executing program\n", 18) = 18
[pid 11854] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11854] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11854] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11854] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11854] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11854] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11854] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11855 attached
 => {parent_tid=[11855]}, 88) = 11855
[pid 11854] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11854] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11854] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11855] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11855] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11855] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11855] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11854] <... futex resumed>)        = 0
[pid 11854] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11854] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11855] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11855] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11854] <... futex resumed>)        = 0
[pid 11854] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11854] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11855] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11855] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11854] <... futex resumed>)        = 0
[pid 11854] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11854] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11855] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11855] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11855] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11854] <... futex resumed>)        = 0
[pid 11854] exit_group(0)               = ?
[pid 11855] <... futex resumed>)        = ?
[pid 11855] +++ exited with 0 +++
[pid 11854] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11854, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11856
./strace-static-x86_64: Process 11856 attached
[pid 11856] set_robust_list(0x5555874576a0, 24) = 0
[pid 11856] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11856] setpgid(0, 0)               = 0
[pid 11856] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11856] write(3, "1000", 4)         = 4
[pid 11856] close(3)                    = 0
executing program
[pid 11856] write(1, "executing program\n", 18) = 18
[pid 11856] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11856] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11856] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11856] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11856] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11856] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11856] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11857 attached
 => {parent_tid=[11857]}, 88) = 11857
[pid 11856] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11856] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11856] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11857] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11857] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11857] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11857] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11856] <... futex resumed>)        = 0
[pid 11856] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11856] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11857] <... futex resumed>)        = 1
[pid 11857] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11857] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11856] <... futex resumed>)        = 0
[pid 11856] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11856] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11857] <... futex resumed>)        = 1
[pid 11857] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11857] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11856] <... futex resumed>)        = 0
[pid 11856] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11856] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11857] <... futex resumed>)        = 1
[pid 11857] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11857] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11856] <... futex resumed>)        = 0
[pid 11856] exit_group(0)               = ?
[pid 11857] +++ exited with 0 +++
[pid 11856] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11856, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11858
./strace-static-x86_64: Process 11858 attached
[pid 11858] set_robust_list(0x5555874576a0, 24) = 0
[pid 11858] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11858] setpgid(0, 0)               = 0
[pid 11858] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11858] write(3, "1000", 4)         = 4
[pid 11858] close(3)                    = 0
executing program
[pid 11858] write(1, "executing program\n", 18) = 18
[pid 11858] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11858] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11858] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11858] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11858] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11858] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11858] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11859 attached
 => {parent_tid=[11859]}, 88) = 11859
[pid 11859] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11858] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11858] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11858] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11859] <... set_robust_list resumed>) = 0
[pid 11859] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11859] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11859] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11858] <... futex resumed>)        = 0
[pid 11859] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11858] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11859] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11858] <... futex resumed>)        = 0
[pid 11859] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11858] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11859] <... futex resumed>)        = 0
[pid 11858] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11859] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11858] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11859] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11858] <... futex resumed>)        = 0
[pid 11858] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11859] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11858] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11858] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11858] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11859] <... futex resumed>)        = 1
[pid 11858] <... futex resumed>)        = 0
[pid 11859] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11858] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11859] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11859] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11858] <... futex resumed>)        = 0
[pid 11859] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11858] exit_group(0 <unfinished ...>
[pid 11859] <... futex resumed>)        = ?
[pid 11858] <... exit_group resumed>)   = ?
[pid 11859] +++ exited with 0 +++
[pid 11858] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11858, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11860
./strace-static-x86_64: Process 11860 attached
[pid 11860] set_robust_list(0x5555874576a0, 24) = 0
[pid 11860] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11860] setpgid(0, 0)               = 0
[pid 11860] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11860] write(3, "1000", 4)         = 4
[pid 11860] close(3)                    = 0
[pid 11860] write(1, "executing program\n", 18executing program
) = 18
[pid 11860] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11860] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11860] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11860] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11860] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11860] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11860] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11861 attached
 => {parent_tid=[11861]}, 88) = 11861
[pid 11861] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11861] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11861] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11860] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11860] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11861] <... futex resumed>)        = 0
[pid 11861] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11860] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11861] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11861] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11861] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11860] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11860] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11861] <... futex resumed>)        = 0
[pid 11861] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11861] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11861] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11860] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11860] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11861] <... futex resumed>)        = 0
[pid 11861] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11860] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11861] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11861] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11860] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11860] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11861] <... futex resumed>)        = 0
[pid 11861] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11861] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11861] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11860] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11860] exit_group(0)               = ?
[pid 11861] <... futex resumed>)        = ?
[pid 11861] +++ exited with 0 +++
[pid 11860] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11860, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11862 attached
, child_tidptr=0x555587457690) = 11862
[pid 11862] set_robust_list(0x5555874576a0, 24) = 0
[pid 11862] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11862] setpgid(0, 0)               = 0
[pid 11862] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11862] write(3, "1000", 4)         = 4
[pid 11862] close(3)                    = 0
[pid 11862] write(1, "executing program\n", 18executing program
) = 18
[pid 11862] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11862] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11862] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11862] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11862] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11862] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11862] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11863]}, 88) = 11863
[pid 11862] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11862] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11862] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11863 attached
 <unfinished ...>
[pid 11863] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11863] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11863] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11863] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11862] <... futex resumed>)        = 0
[pid 11862] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11862] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11863] <... futex resumed>)        = 1
[pid 11863] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11863] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11862] <... futex resumed>)        = 0
[pid 11862] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11862] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11863] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11863] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11862] <... futex resumed>)        = 0
[pid 11862] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11862] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11863] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11863] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11862] <... futex resumed>)        = 0
[pid 11863] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11862] exit_group(0)               = ?
[pid 11863] <... futex resumed>)        = ?
[pid 11863] +++ exited with 0 +++
[pid 11862] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11862, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11864
./strace-static-x86_64: Process 11864 attached
[pid 11864] set_robust_list(0x5555874576a0, 24) = 0
[pid 11864] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11864] setpgid(0, 0)               = 0
[pid 11864] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11864] write(3, "1000", 4)         = 4
[pid 11864] close(3)                    = 0
[pid 11864] write(1, "executing program\n", 18executing program
) = 18
[pid 11864] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11864] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11864] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11864] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11864] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11864] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11864] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11865 attached
 => {parent_tid=[11865]}, 88) = 11865
[pid 11865] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11864] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11864] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11864] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11865] <... set_robust_list resumed>) = 0
[pid 11865] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11865] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11865] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11864] <... futex resumed>)        = 0
[pid 11864] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11864] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11865] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11865] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11864] <... futex resumed>)        = 0
[pid 11864] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11864] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11865] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11865] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11864] <... futex resumed>)        = 0
[pid 11864] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11864] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11865] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11865] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11864] <... futex resumed>)        = 0
[pid 11864] exit_group(0)               = ?
[pid 11865] +++ exited with 0 +++
[pid 11864] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11864, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11866
./strace-static-x86_64: Process 11866 attached
[pid 11866] set_robust_list(0x5555874576a0, 24) = 0
[pid 11866] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11866] setpgid(0, 0)               = 0
[pid 11866] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11866] write(3, "1000", 4)         = 4
[pid 11866] close(3)                    = 0
[pid 11866] write(1, "executing program\n", 18executing program
) = 18
[pid 11866] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11866] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11866] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11866] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11866] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11866] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11866] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11867 attached
 <unfinished ...>
[pid 11867] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11867] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11867] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11866] <... clone3 resumed> => {parent_tid=[11867]}, 88) = 11867
[pid 11866] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11866] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11867] <... futex resumed>)        = 0
[pid 11867] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11867] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11867] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11866] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11866] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11867] <... futex resumed>)        = 0
[pid 11867] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11867] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11867] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11866] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11866] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11867] <... futex resumed>)        = 0
[pid 11866] <... futex resumed>)        = 1
[pid 11867] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11867] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11867] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11866] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11866] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11867] <... futex resumed>)        = 0
[pid 11867] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11867] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11867] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11866] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11866] exit_group(0)               = ?
[pid 11867] <... futex resumed>)        = ?
[pid 11867] +++ exited with 0 +++
[pid 11866] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11866, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11868
./strace-static-x86_64: Process 11868 attached
[pid 11868] set_robust_list(0x5555874576a0, 24) = 0
[pid 11868] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11868] setpgid(0, 0)               = 0
[pid 11868] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11868] write(3, "1000", 4)         = 4
[pid 11868] close(3)                    = 0
executing program
[pid 11868] write(1, "executing program\n", 18) = 18
[pid 11868] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11868] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11868] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11868] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11868] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11868] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11868] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11869 attached
 => {parent_tid=[11869]}, 88) = 11869
[pid 11868] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11868] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11869] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11868] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11869] <... set_robust_list resumed>) = 0
[pid 11869] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11869] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11869] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11868] <... futex resumed>)        = 0
[pid 11868] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11868] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11869] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11869] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11868] <... futex resumed>)        = 0
[pid 11868] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11868] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11869] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11869] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11868] <... futex resumed>)        = 0
[pid 11868] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11868] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11869] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11869] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11868] <... futex resumed>)        = 0
[pid 11868] exit_group(0)               = ?
[pid 11869] +++ exited with 0 +++
[pid 11868] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11868, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11870
./strace-static-x86_64: Process 11870 attached
[pid 11870] set_robust_list(0x5555874576a0, 24) = 0
[pid 11870] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11870] setpgid(0, 0)               = 0
[pid 11870] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11870] write(3, "1000", 4)         = 4
[pid 11870] close(3)                    = 0
[pid 11870] write(1, "executing program\n", 18executing program
) = 18
[pid 11870] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11870] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11870] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11870] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11870] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11870] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11870] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11871]}, 88) = 11871
./strace-static-x86_64: Process 11871 attached
[pid 11870] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11870] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11870] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11871] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11871] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11871] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11871] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11870] <... futex resumed>)        = 0
[pid 11870] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11870] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11871] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11871] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11870] <... futex resumed>)        = 0
[pid 11870] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11870] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11871] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11871] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11870] <... futex resumed>)        = 0
[pid 11871] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11870] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11870] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11871] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11871] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11870] <... futex resumed>)        = 0
[pid 11871] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11870] exit_group(0 <unfinished ...>
[pid 11871] <... futex resumed>)        = ?
[pid 11870] <... exit_group resumed>)   = ?
[pid 11871] +++ exited with 0 +++
[pid 11870] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11870, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11872 attached
 <unfinished ...>
[pid 11872] set_robust_list(0x5555874576a0, 24) = 0
[pid 11872] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11872] setpgid(0, 0)               = 0
[pid 11872] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 11872
[pid 11872] <... openat resumed>)       = 3
[pid 11872] write(3, "1000", 4)         = 4
[pid 11872] close(3executing program
)                    = 0
[pid 11872] write(1, "executing program\n", 18) = 18
[pid 11872] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11872] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11872] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11872] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11872] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11872] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11872] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11873 attached
 <unfinished ...>
[pid 11873] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11872] <... clone3 resumed> => {parent_tid=[11873]}, 88) = 11873
[pid 11873] <... set_robust_list resumed>) = 0
[pid 11872] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11873] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11872] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11873] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11872] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11873] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11872] <... futex resumed>)        = 0
[pid 11873] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11872] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11873] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11872] <... futex resumed>)        = 0
[pid 11873] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11872] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11873] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11872] <... futex resumed>)        = 0
[pid 11873] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11872] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11873] <... futex resumed>)        = 0
[pid 11872] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11873] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11872] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11873] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11872] <... futex resumed>)        = 0
[pid 11873] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11872] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11873] <... futex resumed>)        = 0
[pid 11872] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11873] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11872] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11872] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11873] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11873] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11872] <... futex resumed>)        = 0
[pid 11873] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11872] exit_group(0 <unfinished ...>
[pid 11873] <... futex resumed>)        = ?
[pid 11872] <... exit_group resumed>)   = ?
[pid 11873] +++ exited with 0 +++
[pid 11872] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11872, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11874 attached
, child_tidptr=0x555587457690) = 11874
[pid 11874] set_robust_list(0x5555874576a0, 24) = 0
[pid 11874] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11874] setpgid(0, 0)               = 0
[pid 11874] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11874] write(3, "1000", 4)         = 4
[pid 11874] close(3)                    = 0
executing program
[pid 11874] write(1, "executing program\n", 18) = 18
[pid 11874] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11874] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11874] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11874] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11874] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11874] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11874] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11875 attached
 <unfinished ...>
[pid 11875] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11874] <... clone3 resumed> => {parent_tid=[11875]}, 88) = 11875
[pid 11874] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11874] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11874] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11875] <... set_robust_list resumed>) = 0
[pid 11875] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11875] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11875] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11874] <... futex resumed>)        = 0
[pid 11874] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11874] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11875] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11875] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11874] <... futex resumed>)        = 0
[pid 11874] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11874] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11875] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11875] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11874] <... futex resumed>)        = 0
[pid 11874] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11874] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11875] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11875] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11874] <... futex resumed>)        = 0
[pid 11874] exit_group(0 <unfinished ...>
[pid 11875] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11874] <... exit_group resumed>)   = ?
[pid 11875] <... futex resumed>)        = ?
[pid 11875] +++ exited with 0 +++
[pid 11874] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11874, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11876
./strace-static-x86_64: Process 11876 attached
[pid 11876] set_robust_list(0x5555874576a0, 24) = 0
[pid 11876] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11876] setpgid(0, 0)               = 0
[pid 11876] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11876] write(3, "1000", 4)         = 4
[pid 11876] close(3)                    = 0
[pid 11876] write(1, "executing program\n", 18executing program
) = 18
[pid 11876] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11876] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11876] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11876] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11876] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11876] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11876] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11877]}, 88) = 11877
[pid 11876] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11876] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11876] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11877 attached
 <unfinished ...>
[pid 11877] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11877] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11877] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11877] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11876] <... futex resumed>)        = 0
[pid 11876] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11877] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11876] <... futex resumed>)        = 0
[pid 11876] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11877] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11877] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11876] <... futex resumed>)        = 0
[pid 11877] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11876] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11877] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11876] <... futex resumed>)        = 0
[pid 11876] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11877] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11877] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11876] <... futex resumed>)        = 0
[pid 11877] <... futex resumed>)        = 1
[pid 11876] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11877] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11876] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11877] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11876] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11877] <... futex resumed>)        = 0
[pid 11876] exit_group(0 <unfinished ...>
[pid 11877] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11876] <... exit_group resumed>)   = ?
[pid 11877] <... futex resumed>)        = ?
[pid 11877] +++ exited with 0 +++
[pid 11876] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11876, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11878 attached
, child_tidptr=0x555587457690) = 11878
[pid 11878] set_robust_list(0x5555874576a0, 24) = 0
[pid 11878] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11878] setpgid(0, 0)               = 0
[pid 11878] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11878] write(3, "1000", 4)         = 4
[pid 11878] close(3)                    = 0
executing program
[pid 11878] write(1, "executing program\n", 18) = 18
[pid 11878] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11878] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11878] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11878] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11878] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11878] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11878] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11879]}, 88) = 11879
[pid 11878] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11878] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11878] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11879 attached
 <unfinished ...>
[pid 11879] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11879] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11879] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11879] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11878] <... futex resumed>)        = 0
[pid 11878] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11878] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11879] <... futex resumed>)        = 1
[pid 11879] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11879] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11878] <... futex resumed>)        = 0
[pid 11878] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11878] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11879] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11879] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11878] <... futex resumed>)        = 0
[pid 11878] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11878] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11879] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11879] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11878] <... futex resumed>)        = 0
[pid 11878] exit_group(0 <unfinished ...>
[pid 11879] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11878] <... exit_group resumed>)   = ?
[pid 11879] <... futex resumed>)        = ?
[pid 11879] +++ exited with 0 +++
[pid 11878] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11878, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11880
./strace-static-x86_64: Process 11880 attached
[pid 11880] set_robust_list(0x5555874576a0, 24) = 0
[pid 11880] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11880] setpgid(0, 0)               = 0
[pid 11880] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11880] write(3, "1000", 4)         = 4
[pid 11880] close(3executing program
)                    = 0
[pid 11880] write(1, "executing program\n", 18) = 18
[pid 11880] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11880] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11880] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11880] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11880] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11880] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11880] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11881 attached
 => {parent_tid=[11881]}, 88) = 11881
[pid 11880] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11880] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11880] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11881] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11881] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11881] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11881] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11880] <... futex resumed>)        = 0
[pid 11880] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11880] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11881] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11881] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11880] <... futex resumed>)        = 0
[pid 11880] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11880] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11881] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11881] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11880] <... futex resumed>)        = 0
[pid 11880] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11880] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11881] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11881] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11880] <... futex resumed>)        = 0
[pid 11880] exit_group(0)               = ?
[pid 11881] +++ exited with 0 +++
[pid 11880] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11880, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11882
./strace-static-x86_64: Process 11882 attached
[pid 11882] set_robust_list(0x5555874576a0, 24) = 0
[pid 11882] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11882] setpgid(0, 0)               = 0
[pid 11882] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11882] write(3, "1000", 4)         = 4
[pid 11882] close(3)                    = 0
[pid 11882] write(1, "executing program\n", 18executing program
) = 18
[pid 11882] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11882] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11882] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11882] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11882] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11882] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11882] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11883 attached
 => {parent_tid=[11883]}, 88) = 11883
[pid 11883] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11883] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11883] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11882] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11882] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11883] <... futex resumed>)        = 0
[pid 11883] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11882] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11883] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11883] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11883] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11882] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11882] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11883] <... futex resumed>)        = 0
[pid 11883] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11883] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11883] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11882] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11882] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11883] <... futex resumed>)        = 0
[pid 11883] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11883] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11883] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11882] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11882] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11883] <... futex resumed>)        = 0
[pid 11883] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11883] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11883] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11882] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11882] exit_group(0)               = ?
[pid 11883] <... futex resumed>)        = ?
[pid 11883] +++ exited with 0 +++
[pid 11882] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11882, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11884
./strace-static-x86_64: Process 11884 attached
[pid 11884] set_robust_list(0x5555874576a0, 24) = 0
[pid 11884] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11884] setpgid(0, 0)               = 0
[pid 11884] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11884] write(3, "1000", 4)         = 4
[pid 11884] close(3)                    = 0
executing program
[pid 11884] write(1, "executing program\n", 18) = 18
[pid 11884] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11884] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11884] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11884] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11884] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11884] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11884] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11885 attached
 => {parent_tid=[11885]}, 88) = 11885
[pid 11885] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11885] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11885] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11884] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11884] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11885] <... futex resumed>)        = 0
[pid 11885] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11884] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11885] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11885] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11885] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11884] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11884] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11885] <... futex resumed>)        = 0
[pid 11885] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11885] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11885] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11884] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11884] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11885] <... futex resumed>)        = 0
[pid 11885] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11885] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11885] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11884] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11884] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11885] <... futex resumed>)        = 0
[pid 11885] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11885] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11885] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11884] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11884] exit_group(0)               = ?
[pid 11885] <... futex resumed>)        = ?
[pid 11885] +++ exited with 0 +++
[pid 11884] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11884, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11886
./strace-static-x86_64: Process 11886 attached
[pid 11886] set_robust_list(0x5555874576a0, 24) = 0
[pid 11886] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11886] setpgid(0, 0)               = 0
[pid 11886] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11886] write(3, "1000", 4)         = 4
[pid 11886] close(3)                    = 0
executing program
[pid 11886] write(1, "executing program\n", 18) = 18
[pid 11886] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11886] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11886] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11886] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11886] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11886] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11886] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11887]}, 88) = 11887
[pid 11886] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11886] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11886] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11887 attached
 <unfinished ...>
[pid 11887] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11887] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11887] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11887] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11886] <... futex resumed>)        = 0
[pid 11886] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11886] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11887] <... futex resumed>)        = 1
[pid 11887] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11887] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11886] <... futex resumed>)        = 0
[pid 11886] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11886] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11887] <... futex resumed>)        = 1
[pid 11887] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11887] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11886] <... futex resumed>)        = 0
[pid 11886] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11886] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11887] <... futex resumed>)        = 1
[pid 11887] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11887] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11886] <... futex resumed>)        = 0
[pid 11886] exit_group(0)               = ?
[pid 11887] <... futex resumed>)        = ?
[pid 11887] +++ exited with 0 +++
[pid 11886] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11886, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11888
./strace-static-x86_64: Process 11888 attached
[pid 11888] set_robust_list(0x5555874576a0, 24) = 0
[pid 11888] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11888] setpgid(0, 0)               = 0
[pid 11888] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11888] write(3, "1000", 4)         = 4
[pid 11888] close(3)                    = 0
[pid 11888] write(1, "executing program\n", 18executing program
) = 18
[pid 11888] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11888] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11888] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11888] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11888] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11888] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11888] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11889 attached
 => {parent_tid=[11889]}, 88) = 11889
[pid 11888] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11889] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11888] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11888] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11888] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11889] <... set_robust_list resumed>) = 0
[pid 11889] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11889] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11889] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11888] <... futex resumed>)        = 0
[pid 11888] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11888] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11889] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11889] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11888] <... futex resumed>)        = 0
[pid 11888] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11888] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11889] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11889] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11888] <... futex resumed>)        = 0
[pid 11888] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11888] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11889] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11889] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11888] <... futex resumed>)        = 0
[pid 11888] exit_group(0)               = ?
[pid 11889] +++ exited with 0 +++
[pid 11888] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11888, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11890
./strace-static-x86_64: Process 11890 attached
[pid 11890] set_robust_list(0x5555874576a0, 24) = 0
[pid 11890] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11890] setpgid(0, 0)               = 0
[pid 11890] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11890] write(3, "1000", 4)         = 4
[pid 11890] close(3)                    = 0
executing program
[pid 11890] write(1, "executing program\n", 18) = 18
[pid 11890] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11890] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11890] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11890] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11890] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11890] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11890] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11891 attached
 => {parent_tid=[11891]}, 88) = 11891
[pid 11890] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11890] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11890] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11891] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11891] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11891] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11891] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11891] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11890] <... futex resumed>)        = 0
[pid 11890] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11891] <... futex resumed>)        = 0
[pid 11891] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11891] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11891] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11890] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11890] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11891] <... futex resumed>)        = 0
[pid 11891] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11891] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11891] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11890] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11890] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11891] <... futex resumed>)        = 0
[pid 11891] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11890] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11891] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11891] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11891] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11890] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11890] exit_group(0)               = ?
[pid 11891] <... futex resumed>)        = ?
[pid 11891] +++ exited with 0 +++
[pid 11890] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11890, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11892 attached
, child_tidptr=0x555587457690) = 11892
[pid 11892] set_robust_list(0x5555874576a0, 24) = 0
[pid 11892] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11892] setpgid(0, 0)               = 0
[pid 11892] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11892] write(3, "1000", 4)         = 4
[pid 11892] close(3)                    = 0
[pid 11892] write(1, "executing program\n", 18executing program
) = 18
[pid 11892] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11892] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11892] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11892] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11892] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11892] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11892] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11893 attached
 <unfinished ...>
[pid 11893] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11893] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11893] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11892] <... clone3 resumed> => {parent_tid=[11893]}, 88) = 11893
[pid 11892] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11892] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11893] <... futex resumed>)        = 0
[pid 11893] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11893] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11893] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11892] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11892] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11893] <... futex resumed>)        = 0
[pid 11893] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11893] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11893] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11892] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11892] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11893] <... futex resumed>)        = 0
[pid 11893] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11892] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11893] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11892] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11893] <... futex resumed>)        = 0
[pid 11893] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11892] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11893] <... futex resumed>)        = 0
[pid 11893] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11892] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11893] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11893] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11893] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11892] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11892] exit_group(0)               = ?
[pid 11893] <... futex resumed>)        = ?
[pid 11893] +++ exited with 0 +++
[pid 11892] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11892, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11894
./strace-static-x86_64: Process 11894 attached
[pid 11894] set_robust_list(0x5555874576a0, 24) = 0
[pid 11894] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11894] setpgid(0, 0)               = 0
[pid 11894] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11894] write(3, "1000", 4)         = 4
[pid 11894] close(3)                    = 0
[pid 11894] write(1, "executing program\n", 18executing program
) = 18
[pid 11894] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11894] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11894] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11894] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11894] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11894] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11894] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11895 attached
 => {parent_tid=[11895]}, 88) = 11895
[pid 11894] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11894] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11894] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11895] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11895] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11895] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11895] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11894] <... futex resumed>)        = 0
[pid 11894] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11894] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11895] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11895] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11894] <... futex resumed>)        = 0
[pid 11894] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11894] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11895] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11895] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11894] <... futex resumed>)        = 0
[pid 11894] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11894] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11895] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11895] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11894] <... futex resumed>)        = 0
[pid 11894] exit_group(0)               = ?
[pid 11895] +++ exited with 0 +++
[pid 11894] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11894, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11896 attached
, child_tidptr=0x555587457690) = 11896
[pid 11896] set_robust_list(0x5555874576a0, 24) = 0
[pid 11896] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11896] setpgid(0, 0)               = 0
[pid 11896] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11896] write(3, "1000", 4)         = 4
[pid 11896] close(3)                    = 0
[pid 11896] write(1, "executing program\n", 18executing program
) = 18
[pid 11896] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11896] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11896] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11896] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11896] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11896] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11896] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11897 attached
 => {parent_tid=[11897]}, 88) = 11897
[pid 11896] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11896] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11896] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11897] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11897] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11897] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11897] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11896] <... futex resumed>)        = 0
[pid 11896] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11896] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11897] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11897] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11896] <... futex resumed>)        = 0
[pid 11896] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11896] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11897] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11897] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11896] <... futex resumed>)        = 0
[pid 11896] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11896] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11897] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11897] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11896] <... futex resumed>)        = 0
[pid 11896] exit_group(0)               = ?
[pid 11897] +++ exited with 0 +++
[pid 11896] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11896, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11898 attached
, child_tidptr=0x555587457690) = 11898
[pid 11898] set_robust_list(0x5555874576a0, 24) = 0
[pid 11898] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11898] setpgid(0, 0)               = 0
[pid 11898] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11898] write(3, "1000", 4)         = 4
[pid 11898] close(3)                    = 0
executing program
[pid 11898] write(1, "executing program\n", 18) = 18
[pid 11898] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11898] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11898] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11898] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11898] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11898] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11898] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11899 attached
 => {parent_tid=[11899]}, 88) = 11899
[pid 11899] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11899] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11899] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11898] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11898] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11899] <... futex resumed>)        = 0
[pid 11899] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11898] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11899] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11899] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11899] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11898] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11898] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11899] <... futex resumed>)        = 0
[pid 11899] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11899] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11899] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11898] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11898] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11899] <... futex resumed>)        = 0
[pid 11899] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11898] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11899] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11899] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11899] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11898] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11898] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11899] <... futex resumed>)        = 0
[pid 11899] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11899] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11899] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11898] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11898] exit_group(0)               = ?
[pid 11899] <... futex resumed>)        = ?
[pid 11899] +++ exited with 0 +++
[pid 11898] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11898, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11900
./strace-static-x86_64: Process 11900 attached
[pid 11900] set_robust_list(0x5555874576a0, 24) = 0
[pid 11900] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11900] setpgid(0, 0)               = 0
[pid 11900] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11900] write(3, "1000", 4)         = 4
[pid 11900] close(3)                    = 0
[pid 11900] write(1, "executing program\n", 18executing program
) = 18
[pid 11900] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11900] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11900] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11900] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11900] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11900] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11900] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11901 attached
 => {parent_tid=[11901]}, 88) = 11901
[pid 11901] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11900] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11901] <... set_robust_list resumed>) = 0
[pid 11900] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11901] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11900] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11901] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11900] <... futex resumed>)        = 0
[pid 11900] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11901] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11901] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11900] <... futex resumed>)        = 0
[pid 11901] <... futex resumed>)        = 1
[pid 11900] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11901] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11900] <... futex resumed>)        = 0
[pid 11900] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11901] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11901] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11900] <... futex resumed>)        = 0
[pid 11901] <... futex resumed>)        = 1
[pid 11900] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11901] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11900] <... futex resumed>)        = 0
[pid 11900] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11901] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11901] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11900] <... futex resumed>)        = 0
[pid 11901] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11900] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11901] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11900] <... futex resumed>)        = 0
[pid 11900] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11901] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11901] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11900] <... futex resumed>)        = 0
[pid 11900] exit_group(0)               = ?
[pid 11901] +++ exited with 0 +++
[pid 11900] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11900, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11902
./strace-static-x86_64: Process 11902 attached
[pid 11902] set_robust_list(0x5555874576a0, 24) = 0
[pid 11902] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11902] setpgid(0, 0)               = 0
[pid 11902] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11902] write(3, "1000", 4)         = 4
[pid 11902] close(3)                    = 0
[pid 11902] write(1, "executing program\n", 18executing program
) = 18
[pid 11902] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11902] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11902] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11902] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11902] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11902] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11902] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11903]}, 88) = 11903
[pid 11902] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11902] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 11903 attached
 <unfinished ...>
[pid 11903] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11903] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11903] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11902] <... futex resumed>)        = 0
[pid 11903] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11903] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11902] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11902] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11902] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11903] <... futex resumed>)        = 0
[pid 11903] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11903] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11902] <... futex resumed>)        = 0
[pid 11902] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11902] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11903] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11903] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11902] <... futex resumed>)        = 0
[pid 11902] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11902] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11903] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11903] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11902] <... futex resumed>)        = 0
[pid 11902] exit_group(0)               = ?
[pid 11903] +++ exited with 0 +++
[pid 11902] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11902, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11904
./strace-static-x86_64: Process 11904 attached
[pid 11904] set_robust_list(0x5555874576a0, 24) = 0
[pid 11904] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11904] setpgid(0, 0)               = 0
[pid 11904] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11904] write(3, "1000", 4)         = 4
[pid 11904] close(3)                    = 0
executing program
[pid 11904] write(1, "executing program\n", 18) = 18
[pid 11904] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11904] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11904] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11904] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11904] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11904] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11904] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11905]}, 88) = 11905
./strace-static-x86_64: Process 11905 attached
[pid 11904] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11905] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11904] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11905] <... set_robust_list resumed>) = 0
[pid 11904] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11905] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11904] <... futex resumed>)        = 0
[pid 11904] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11905] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11905] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11905] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11905] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11904] <... futex resumed>)        = 0
[pid 11904] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11904] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11905] <... futex resumed>)        = 0
[pid 11905] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11905] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11904] <... futex resumed>)        = 0
[pid 11904] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11904] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11905] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11905] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11904] <... futex resumed>)        = 0
[pid 11904] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11904] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11905] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11905] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11904] <... futex resumed>)        = 0
[pid 11904] exit_group(0)               = ?
[pid 11905] +++ exited with 0 +++
[pid 11904] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11904, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11906
./strace-static-x86_64: Process 11906 attached
[pid 11906] set_robust_list(0x5555874576a0, 24) = 0
[pid 11906] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11906] setpgid(0, 0)               = 0
[pid 11906] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11906] write(3, "1000", 4)         = 4
[pid 11906] close(3)                    = 0
[pid 11906] write(1, "executing program\n", 18executing program
) = 18
[pid 11906] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11906] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11906] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11906] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11906] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11906] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11906] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11907 attached
 => {parent_tid=[11907]}, 88) = 11907
[pid 11906] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11906] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11906] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11907] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11907] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11907] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11907] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11906] <... futex resumed>)        = 0
[pid 11906] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11906] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11907] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11907] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11906] <... futex resumed>)        = 0
[pid 11906] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11906] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11907] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11907] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11906] <... futex resumed>)        = 0
[pid 11906] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11906] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11907] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11907] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11906] <... futex resumed>)        = 0
[pid 11906] exit_group(0)               = ?
[pid 11907] +++ exited with 0 +++
[pid 11906] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11906, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11908
./strace-static-x86_64: Process 11908 attached
[pid 11908] set_robust_list(0x5555874576a0, 24) = 0
[pid 11908] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11908] setpgid(0, 0)               = 0
[pid 11908] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11908] write(3, "1000", 4)         = 4
[pid 11908] close(3)                    = 0
[pid 11908] write(1, "executing program\n", 18executing program
) = 18
[pid 11908] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11908] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11908] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11908] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11908] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11908] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11908] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11909 attached
 => {parent_tid=[11909]}, 88) = 11909
[pid 11909] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11909] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11909] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11908] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11908] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11909] <... futex resumed>)        = 0
[pid 11909] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11909] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11909] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11908] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11908] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11909] <... futex resumed>)        = 0
[pid 11909] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11909] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11909] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11908] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11908] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11909] <... futex resumed>)        = 0
[pid 11909] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11909] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11909] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11908] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11908] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11909] <... futex resumed>)        = 0
[pid 11909] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11909] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11909] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11908] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11908] exit_group(0)               = ?
[pid 11909] <... futex resumed>)        = ?
[pid 11909] +++ exited with 0 +++
[pid 11908] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11908, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11910
./strace-static-x86_64: Process 11910 attached
[pid 11910] set_robust_list(0x5555874576a0, 24) = 0
[pid 11910] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11910] setpgid(0, 0)               = 0
[pid 11910] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11910] write(3, "1000", 4)         = 4
[pid 11910] close(3executing program
)                    = 0
[pid 11910] write(1, "executing program\n", 18) = 18
[pid 11910] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11910] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11910] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11910] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11910] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11910] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11910] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11911 attached
 => {parent_tid=[11911]}, 88) = 11911
[pid 11911] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11910] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11911] <... set_robust_list resumed>) = 0
[pid 11910] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11911] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11910] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11911] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11910] <... futex resumed>)        = 0
[pid 11911] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11910] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11911] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11911] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11910] <... futex resumed>)        = 0
[pid 11910] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11910] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11911] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11911] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11910] <... futex resumed>)        = 0
[pid 11910] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11910] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11911] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11911] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11910] <... futex resumed>)        = 0
[pid 11910] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11910] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11911] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11911] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11910] <... futex resumed>)        = 0
[pid 11910] exit_group(0)               = ?
[pid 11911] +++ exited with 0 +++
[pid 11910] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11910, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11912
./strace-static-x86_64: Process 11912 attached
[pid 11912] set_robust_list(0x5555874576a0, 24) = 0
[pid 11912] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11912] setpgid(0, 0)               = 0
[pid 11912] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11912] write(3, "1000", 4)         = 4
[pid 11912] close(3)                    = 0
[pid 11912] write(1, "executing program\n", 18executing program
) = 18
[pid 11912] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11912] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11912] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11912] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11912] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11912] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11912] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11913 attached
 => {parent_tid=[11913]}, 88) = 11913
[pid 11912] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11912] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11912] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11913] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11913] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11913] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11913] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11912] <... futex resumed>)        = 0
[pid 11913] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11912] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11912] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11913] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11913] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11913] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11912] <... futex resumed>)        = 0
[pid 11912] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11912] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11913] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11913] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11912] <... futex resumed>)        = 0
[pid 11912] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11912] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11913] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11913] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11912] <... futex resumed>)        = 0
[pid 11912] exit_group(0)               = ?
[pid 11913] +++ exited with 0 +++
[pid 11912] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11912, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11914
./strace-static-x86_64: Process 11914 attached
[pid 11914] set_robust_list(0x5555874576a0, 24) = 0
[pid 11914] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11914] setpgid(0, 0)               = 0
[pid 11914] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11914] write(3, "1000", 4)         = 4
[pid 11914] close(3)                    = 0
executing program
[pid 11914] write(1, "executing program\n", 18) = 18
[pid 11914] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11914] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11914] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11914] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11914] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11914] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11914] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11915]}, 88) = 11915
[pid 11914] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 11915 attached
 <unfinished ...>
[pid 11915] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11915] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11915] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11914] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11914] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11915] <... futex resumed>)        = 0
[pid 11915] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11915] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11915] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11914] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11914] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11915] <... futex resumed>)        = 0
[pid 11915] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11915] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11915] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11914] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11914] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11915] <... futex resumed>)        = 0
[pid 11915] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11915] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11915] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11914] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11914] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11915] <... futex resumed>)        = 0
[pid 11915] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11914] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11915] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11915] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11915] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11914] <... futex resumed>)        = 0
[pid 11914] exit_group(0)               = ?
[pid 11915] <... futex resumed>)        = ?
[pid 11915] +++ exited with 0 +++
[pid 11914] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11914, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11916 attached
, child_tidptr=0x555587457690) = 11916
[pid 11916] set_robust_list(0x5555874576a0, 24) = 0
[pid 11916] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11916] setpgid(0, 0)               = 0
[pid 11916] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11916] write(3, "1000", 4)         = 4
[pid 11916] close(3)                    = 0
[pid 11916] write(1, "executing program\n", 18executing program
) = 18
[pid 11916] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11916] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11916] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11916] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11916] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11916] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11916] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11917 attached
 => {parent_tid=[11917]}, 88) = 11917
[pid 11917] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11917] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11917] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11916] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11916] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11917] <... futex resumed>)        = 0
[pid 11917] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11917] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11917] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11916] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11916] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11917] <... futex resumed>)        = 0
[pid 11917] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11917] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11917] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11916] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11916] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11917] <... futex resumed>)        = 0
[pid 11917] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11917] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11917] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11916] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11916] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11917] <... futex resumed>)        = 0
[pid 11917] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11917] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11917] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11916] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11916] exit_group(0)               = ?
[pid 11917] <... futex resumed>)        = ?
[pid 11917] +++ exited with 0 +++
[pid 11916] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11916, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11918
./strace-static-x86_64: Process 11918 attached
[pid 11918] set_robust_list(0x5555874576a0, 24) = 0
[pid 11918] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11918] setpgid(0, 0)               = 0
[pid 11918] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11918] write(3, "1000", 4)         = 4
[pid 11918] close(3executing program
)                    = 0
[pid 11918] write(1, "executing program\n", 18) = 18
[pid 11918] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11918] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11918] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11918] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11918] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11918] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11918] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11919 attached
 => {parent_tid=[11919]}, 88) = 11919
[pid 11919] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11919] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11919] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11918] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11918] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11919] <... futex resumed>)        = 0
[pid 11919] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11918] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11919] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11919] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11918] <... futex resumed>)        = 0
[pid 11918] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11918] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11919] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11919] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11918] <... futex resumed>)        = 0
[pid 11918] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11918] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11919] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11919] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11918] <... futex resumed>)        = 0
[pid 11918] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11918] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11919] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11919] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11918] <... futex resumed>)        = 0
[pid 11918] exit_group(0)               = ?
[pid 11919] +++ exited with 0 +++
[pid 11918] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11918, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11920
./strace-static-x86_64: Process 11920 attached
[pid 11920] set_robust_list(0x5555874576a0, 24) = 0
[pid 11920] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11920] setpgid(0, 0)               = 0
[pid 11920] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11920] write(3, "1000", 4)         = 4
[pid 11920] close(3)                    = 0
executing program
[pid 11920] write(1, "executing program\n", 18) = 18
[pid 11920] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11920] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11920] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11920] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11920] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11920] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11920] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11921]}, 88) = 11921
[pid 11920] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11920] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11920] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11921 attached
 <unfinished ...>
[pid 11921] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11921] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11921] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11921] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11920] <... futex resumed>)        = 0
[pid 11920] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11920] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11921] <... futex resumed>)        = 1
[pid 11921] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11921] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11920] <... futex resumed>)        = 0
[pid 11920] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11920] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11921] <... futex resumed>)        = 1
[pid 11921] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11921] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11920] <... futex resumed>)        = 0
[pid 11920] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11920] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11921] <... futex resumed>)        = 1
[pid 11921] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11921] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11920] <... futex resumed>)        = 0
[pid 11921] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11920] exit_group(0 <unfinished ...>
[pid 11921] <... futex resumed>)        = ?
[pid 11920] <... exit_group resumed>)   = ?
[pid 11921] +++ exited with 0 +++
[pid 11920] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11920, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11922 attached
, child_tidptr=0x555587457690) = 11922
[pid 11922] set_robust_list(0x5555874576a0, 24) = 0
[pid 11922] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11922] setpgid(0, 0)               = 0
[pid 11922] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11922] write(3, "1000", 4)         = 4
[pid 11922] close(3)                    = 0
[pid 11922] write(1, "executing program\n", 18executing program
) = 18
[pid 11922] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11922] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11922] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11922] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11922] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11922] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11922] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11923 attached
 => {parent_tid=[11923]}, 88) = 11923
[pid 11923] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11923] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11923] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11922] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11922] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11923] <... futex resumed>)        = 0
[pid 11923] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11923] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11923] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11922] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11922] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11923] <... futex resumed>)        = 0
[pid 11922] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11923] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11923] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11923] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11922] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11922] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11923] <... futex resumed>)        = 0
[pid 11923] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11922] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11923] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11923] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11922] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11922] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11923] <... futex resumed>)        = 0
[pid 11923] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11922] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11923] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11923] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11923] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11922] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11922] exit_group(0)               = ?
[pid 11923] <... futex resumed>)        = ?
[pid 11923] +++ exited with 0 +++
[pid 11922] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11922, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11924
./strace-static-x86_64: Process 11924 attached
[pid 11924] set_robust_list(0x5555874576a0, 24) = 0
[pid 11924] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11924] setpgid(0, 0)               = 0
[pid 11924] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11924] write(3, "1000", 4)         = 4
[pid 11924] close(3)                    = 0
[pid 11924] write(1, "executing program\n", 18executing program
) = 18
[pid 11924] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11924] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11924] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11924] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11924] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11924] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11924] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11925 attached
 => {parent_tid=[11925]}, 88) = 11925
[pid 11925] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11924] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11925] <... set_robust_list resumed>) = 0
[pid 11925] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11925] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11924] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11924] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11925] <... futex resumed>)        = 0
[pid 11924] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11925] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11925] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11925] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11924] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11924] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11925] <... futex resumed>)        = 0
[pid 11925] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11925] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11925] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11924] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11924] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11925] <... futex resumed>)        = 0
[pid 11925] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11925] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11925] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11924] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11924] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11925] <... futex resumed>)        = 0
[pid 11924] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11925] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11925] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11924] <... futex resumed>)        = 0
[pid 11925] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11924] exit_group(0 <unfinished ...>
[pid 11925] <... futex resumed>)        = ?
[pid 11924] <... exit_group resumed>)   = ?
[pid 11925] +++ exited with 0 +++
[pid 11924] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11924, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11926 attached
, child_tidptr=0x555587457690) = 11926
[pid 11926] set_robust_list(0x5555874576a0, 24) = 0
[pid 11926] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11926] setpgid(0, 0)               = 0
[pid 11926] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11926] write(3, "1000", 4)         = 4
[pid 11926] close(3)                    = 0
[pid 11926] write(1, "executing program\n", 18executing program
) = 18
[pid 11926] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11926] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11926] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11926] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11926] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11926] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11926] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11927 attached
 <unfinished ...>
[pid 11927] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11927] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11927] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11926] <... clone3 resumed> => {parent_tid=[11927]}, 88) = 11927
[pid 11926] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11926] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11927] <... futex resumed>)        = 0
[pid 11927] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11927] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11927] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11926] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11926] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11927] <... futex resumed>)        = 0
[pid 11927] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11927] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11927] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11926] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11926] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11927] <... futex resumed>)        = 0
[pid 11927] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11927] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11927] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11926] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11926] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11927] <... futex resumed>)        = 0
[pid 11927] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11927] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11927] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11926] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11926] exit_group(0)               = ?
[pid 11927] <... futex resumed>)        = ?
[pid 11927] +++ exited with 0 +++
[pid 11926] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11926, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11928
./strace-static-x86_64: Process 11928 attached
[pid 11928] set_robust_list(0x5555874576a0, 24) = 0
[pid 11928] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11928] setpgid(0, 0)               = 0
[pid 11928] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11928] write(3, "1000", 4)         = 4
[pid 11928] close(3)                    = 0
[pid 11928] write(1, "executing program\n", 18executing program
) = 18
[pid 11928] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11928] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11928] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11928] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11928] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11928] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11928] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11929 attached
 => {parent_tid=[11929]}, 88) = 11929
[pid 11929] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11929] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11929] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11928] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11928] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11929] <... futex resumed>)        = 0
[pid 11929] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11928] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11929] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11929] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11928] <... futex resumed>)        = 0
[pid 11928] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11928] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11929] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11929] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11928] <... futex resumed>)        = 0
[pid 11928] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11928] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11929] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11929] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11928] <... futex resumed>)        = 0
[pid 11928] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11928] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11929] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11929] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11928] <... futex resumed>)        = 0
[pid 11928] exit_group(0)               = ?
[pid 11929] +++ exited with 0 +++
[pid 11928] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11928, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11930
./strace-static-x86_64: Process 11930 attached
[pid 11930] set_robust_list(0x5555874576a0, 24) = 0
[pid 11930] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11930] setpgid(0, 0)               = 0
[pid 11930] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11930] write(3, "1000", 4)         = 4
[pid 11930] close(3)                    = 0
[pid 11930] write(1, "executing program\n", 18executing program
) = 18
[pid 11930] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11930] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11930] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11930] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11930] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11930] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11930] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11931]}, 88) = 11931
./strace-static-x86_64: Process 11931 attached
[pid 11930] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11931] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11930] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11930] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11930] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11931] <... set_robust_list resumed>) = 0
[pid 11931] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11931] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11931] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11930] <... futex resumed>)        = 0
[pid 11930] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11930] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11931] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11931] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11930] <... futex resumed>)        = 0
[pid 11930] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11930] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11931] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11931] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11930] <... futex resumed>)        = 0
[pid 11930] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11930] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11931] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11931] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11930] <... futex resumed>)        = 0
[pid 11930] exit_group(0)               = ?
[pid 11931] +++ exited with 0 +++
[pid 11930] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11930, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11932
./strace-static-x86_64: Process 11932 attached
[pid 11932] set_robust_list(0x5555874576a0, 24) = 0
[pid 11932] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11932] setpgid(0, 0)               = 0
[pid 11932] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11932] write(3, "1000", 4)         = 4
[pid 11932] close(3)                    = 0
[pid 11932] write(1, "executing program\n", 18executing program
) = 18
[pid 11932] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11932] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11932] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11932] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11932] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11932] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11932] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11933]}, 88) = 11933
[pid 11932] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11932] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11932] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11933 attached
 <unfinished ...>
[pid 11933] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11933] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11933] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11933] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11932] <... futex resumed>)        = 0
[pid 11933] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11932] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11933] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11932] <... futex resumed>)        = 0
[pid 11933] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11932] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11933] <... futex resumed>)        = 0
[pid 11932] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11933] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11932] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11933] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11932] <... futex resumed>)        = 0
[pid 11933] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11932] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11933] <... futex resumed>)        = 0
[pid 11932] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11933] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11932] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11933] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11933] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11933] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
[pid 11932] <... futex resumed>)        = 1
[pid 11933] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11932] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11932] exit_group(0 <unfinished ...>
[pid 11933] <... futex resumed>)        = ?
[pid 11932] <... exit_group resumed>)   = ?
[pid 11933] +++ exited with 0 +++
[pid 11932] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11932, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11934
./strace-static-x86_64: Process 11934 attached
[pid 11934] set_robust_list(0x5555874576a0, 24) = 0
[pid 11934] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11934] setpgid(0, 0)               = 0
[pid 11934] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11934] write(3, "1000", 4)         = 4
[pid 11934] close(3)                    = 0
executing program
[pid 11934] write(1, "executing program\n", 18) = 18
[pid 11934] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11934] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11934] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11934] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11934] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11934] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11934] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11935 attached
 => {parent_tid=[11935]}, 88) = 11935
[pid 11934] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11934] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11934] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11935] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11935] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11935] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11935] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11934] <... futex resumed>)        = 0
[pid 11935] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11934] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11935] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11934] <... futex resumed>)        = 0
[pid 11935] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11934] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11935] <... futex resumed>)        = 0
[pid 11934] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11935] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11934] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11935] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11934] <... futex resumed>)        = 0
[pid 11935] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11934] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11935] <... futex resumed>)        = 0
[pid 11934] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11935] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11934] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11935] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11934] <... futex resumed>)        = 0
[pid 11935] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11934] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11935] <... futex resumed>)        = 0
[pid 11934] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11935] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11934] exit_group(0 <unfinished ...>
[pid 11935] <... futex resumed>)        = ?
[pid 11934] <... exit_group resumed>)   = ?
[pid 11935] +++ exited with 0 +++
[pid 11934] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11934, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11936
./strace-static-x86_64: Process 11936 attached
[pid 11936] set_robust_list(0x5555874576a0, 24) = 0
[pid 11936] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11936] setpgid(0, 0)               = 0
[pid 11936] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11936] write(3, "1000", 4)         = 4
[pid 11936] close(3)                    = 0
[pid 11936] write(1, "executing program\n", 18executing program
) = 18
[pid 11936] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11936] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11936] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11936] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11936] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11936] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11936] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11937 attached
 => {parent_tid=[11937]}, 88) = 11937
[pid 11936] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11936] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11936] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11937] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11937] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11937] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11937] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11937] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11936] <... futex resumed>)        = 0
[pid 11936] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11937] <... futex resumed>)        = 0
[pid 11936] <... futex resumed>)        = 1
[pid 11937] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11936] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11937] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11937] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11936] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11936] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11937] <... futex resumed>)        = 0
[pid 11936] <... futex resumed>)        = 1
[pid 11937] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11937] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11937] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11936] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11936] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11937] <... futex resumed>)        = 0
[pid 11936] <... futex resumed>)        = 1
[pid 11937] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11937] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11937] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11936] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11936] exit_group(0 <unfinished ...>
[pid 11937] <... futex resumed>)        = ?
[pid 11936] <... exit_group resumed>)   = ?
[pid 11937] +++ exited with 0 +++
[pid 11936] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11936, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11938 attached
, child_tidptr=0x555587457690) = 11938
[pid 11938] set_robust_list(0x5555874576a0, 24) = 0
[pid 11938] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11938] setpgid(0, 0)               = 0
[pid 11938] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11938] write(3, "1000", 4)         = 4
[pid 11938] close(3)                    = 0
[pid 11938] write(1, "executing program\n", 18executing program
) = 18
[pid 11938] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11938] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11938] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11938] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11938] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11938] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11938] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11939 attached
 <unfinished ...>
[pid 11939] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11939] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11938] <... clone3 resumed> => {parent_tid=[11939]}, 88) = 11939
[pid 11939] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11939] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11938] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11938] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11939] <... futex resumed>)        = 0
[pid 11939] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11938] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11939] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11939] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11939] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11938] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11938] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11939] <... futex resumed>)        = 0
[pid 11939] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11939] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11939] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11938] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11938] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11939] <... futex resumed>)        = 0
[pid 11938] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11939] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11939] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11938] <... futex resumed>)        = 0
[pid 11938] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11938] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11939] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11939] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11938] <... futex resumed>)        = 0
[pid 11938] exit_group(0)               = ?
[pid 11939] +++ exited with 0 +++
[pid 11938] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11938, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11940
./strace-static-x86_64: Process 11940 attached
[pid 11940] set_robust_list(0x5555874576a0, 24) = 0
[pid 11940] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11940] setpgid(0, 0)               = 0
[pid 11940] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11940] write(3, "1000", 4)         = 4
[pid 11940] close(3)                    = 0
[pid 11940] write(1, "executing program\n", 18executing program
) = 18
[pid 11940] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11940] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11940] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11940] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11940] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11940] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11940] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11941]}, 88) = 11941
./strace-static-x86_64: Process 11941 attached
[pid 11940] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11940] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11940] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11941] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11941] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11941] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11941] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11940] <... futex resumed>)        = 0
[pid 11940] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11940] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11941] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11941] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11940] <... futex resumed>)        = 0
[pid 11940] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11940] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11941] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11941] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11940] <... futex resumed>)        = 0
[pid 11940] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11940] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11941] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11941] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11940] <... futex resumed>)        = 0
[pid 11940] exit_group(0)               = ?
[pid 11941] +++ exited with 0 +++
[pid 11940] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11940, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11942
./strace-static-x86_64: Process 11942 attached
[pid 11942] set_robust_list(0x5555874576a0, 24) = 0
[pid 11942] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11942] setpgid(0, 0)               = 0
[pid 11942] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11942] write(3, "1000", 4)         = 4
[pid 11942] close(3)                    = 0
[pid 11942] write(1, "executing program\n", 18executing program
) = 18
[pid 11942] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11942] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11942] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11942] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11942] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11942] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11942] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11943]}, 88) = 11943
[pid 11942] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11942] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11942] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11943 attached
 <unfinished ...>
[pid 11943] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11943] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11943] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11943] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11942] <... futex resumed>)        = 0
[pid 11943] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11942] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11943] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11942] <... futex resumed>)        = 0
[pid 11943] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11942] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11943] <... futex resumed>)        = 0
[pid 11942] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11943] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11942] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11943] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11942] <... futex resumed>)        = 0
[pid 11943] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11942] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11943] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11943] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11942] <... futex resumed>)        = 0
[pid 11943] <... futex resumed>)        = 1
[pid 11942] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11942] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11943] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11943] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11942] <... futex resumed>)        = 0
[pid 11943] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11942] exit_group(0 <unfinished ...>
[pid 11943] <... futex resumed>)        = ?
[pid 11942] <... exit_group resumed>)   = ?
[pid 11943] +++ exited with 0 +++
[pid 11942] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11942, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11944
./strace-static-x86_64: Process 11944 attached
[pid 11944] set_robust_list(0x5555874576a0, 24) = 0
[pid 11944] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11944] setpgid(0, 0)               = 0
[pid 11944] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11944] write(3, "1000", 4)         = 4
[pid 11944] close(3executing program
)                    = 0
[pid 11944] write(1, "executing program\n", 18) = 18
[pid 11944] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11944] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11944] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11944] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11944] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11944] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11944] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11945 attached
 => {parent_tid=[11945]}, 88) = 11945
[pid 11944] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11944] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11944] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11945] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11945] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11945] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11945] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11944] <... futex resumed>)        = 0
[pid 11944] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11944] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11945] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11945] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11944] <... futex resumed>)        = 0
[pid 11944] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11944] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11945] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11945] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11944] <... futex resumed>)        = 0
[pid 11944] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11944] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11945] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11945] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11944] <... futex resumed>)        = 0
[pid 11944] exit_group(0)               = ?
[pid 11945] +++ exited with 0 +++
[pid 11944] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11944, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11946
./strace-static-x86_64: Process 11946 attached
[pid 11946] set_robust_list(0x5555874576a0, 24) = 0
[pid 11946] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11946] setpgid(0, 0)               = 0
[pid 11946] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11946] write(3, "1000", 4)         = 4
[pid 11946] close(3)                    = 0
[pid 11946] write(1, "executing program\n", 18executing program
) = 18
[pid 11946] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11946] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11946] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11946] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11946] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11946] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11946] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11947]}, 88) = 11947
[pid 11946] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11946] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11946] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11947 attached
 <unfinished ...>
[pid 11947] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11947] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11947] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11947] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11946] <... futex resumed>)        = 0
[pid 11946] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11946] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11947] <... futex resumed>)        = 1
[pid 11947] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11947] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11946] <... futex resumed>)        = 0
[pid 11946] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11946] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11947] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11947] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11946] <... futex resumed>)        = 0
[pid 11946] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11946] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11947] <... futex resumed>)        = 1
[pid 11947] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11947] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11946] <... futex resumed>)        = 0
[pid 11946] exit_group(0)               = ?
[pid 11947] +++ exited with 0 +++
[pid 11946] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11946, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11948
./strace-static-x86_64: Process 11948 attached
[pid 11948] set_robust_list(0x5555874576a0, 24) = 0
[pid 11948] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11948] setpgid(0, 0)               = 0
[pid 11948] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11948] write(3, "1000", 4)         = 4
[pid 11948] close(3)                    = 0
executing program
[pid 11948] write(1, "executing program\n", 18) = 18
[pid 11948] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11948] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11948] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11948] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11948] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11948] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11948] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11949]}, 88) = 11949
./strace-static-x86_64: Process 11949 attached
[pid 11949] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11949] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11949] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11948] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11948] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11949] <... futex resumed>)        = 0
[pid 11949] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11948] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11949] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11949] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11949] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11948] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11948] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11949] <... futex resumed>)        = 0
[pid 11949] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11948] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11949] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11948] <... futex resumed>)        = 0
[pid 11948] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11948] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11949] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11949] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11948] <... futex resumed>)        = 0
[pid 11948] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11948] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11949] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11949] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11948] <... futex resumed>)        = 0
[pid 11948] exit_group(0)               = ?
[pid 11949] +++ exited with 0 +++
[pid 11948] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11948, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11950
./strace-static-x86_64: Process 11950 attached
[pid 11950] set_robust_list(0x5555874576a0, 24) = 0
[pid 11950] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11950] setpgid(0, 0)               = 0
[pid 11950] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11950] write(3, "1000", 4)         = 4
[pid 11950] close(3)                    = 0
[pid 11950] write(1, "executing program\n", 18executing program
) = 18
[pid 11950] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11950] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11950] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11950] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11950] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11950] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11950] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11951 attached
 => {parent_tid=[11951]}, 88) = 11951
[pid 11951] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11951] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11951] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11950] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11950] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11951] <... futex resumed>)        = 0
[pid 11951] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11951] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11951] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11950] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11950] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11951] <... futex resumed>)        = 0
[pid 11951] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11951] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11951] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11950] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11950] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11951] <... futex resumed>)        = 0
[pid 11951] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11951] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11951] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11950] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11950] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11951] <... futex resumed>)        = 0
[pid 11951] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11951] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11951] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11950] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11950] exit_group(0)               = ?
[pid 11951] <... futex resumed>)        = ?
[pid 11951] +++ exited with 0 +++
[pid 11950] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11950, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11952 attached
, child_tidptr=0x555587457690) = 11952
[pid 11952] set_robust_list(0x5555874576a0, 24) = 0
[pid 11952] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11952] setpgid(0, 0)               = 0
[pid 11952] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11952] write(3, "1000", 4)         = 4
[pid 11952] close(3)                    = 0
executing program
[pid 11952] write(1, "executing program\n", 18) = 18
[pid 11952] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11952] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11952] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11952] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11952] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11952] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11952] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11953]}, 88) = 11953
./strace-static-x86_64: Process 11953 attached
[pid 11953] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11953] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11953] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11952] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11952] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11953] <... futex resumed>)        = 0
[pid 11953] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11953] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11953] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11952] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11952] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11953] <... futex resumed>)        = 0
[pid 11953] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11952] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11953] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11952] <... futex resumed>)        = 0
[pid 11952] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11952] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11953] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11953] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11953] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11952] <... futex resumed>)        = 0
[pid 11952] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11952] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11953] <... futex resumed>)        = 0
[pid 11953] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11953] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11952] <... futex resumed>)        = 0
[pid 11952] exit_group(0)               = ?
[pid 11953] +++ exited with 0 +++
[pid 11952] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11952, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11954
./strace-static-x86_64: Process 11954 attached
[pid 11954] set_robust_list(0x5555874576a0, 24) = 0
[pid 11954] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11954] setpgid(0, 0)               = 0
[pid 11954] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11954] write(3, "1000", 4executing program
)         = 4
[pid 11954] close(3)                    = 0
[pid 11954] write(1, "executing program\n", 18) = 18
[pid 11954] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11954] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11954] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11954] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11954] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11954] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11954] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11955 attached
 => {parent_tid=[11955]}, 88) = 11955
[pid 11954] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11954] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11954] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11955] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11955] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11955] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11955] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11954] <... futex resumed>)        = 0
[pid 11955] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11954] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11954] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11955] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11955] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11954] <... futex resumed>)        = 0
[pid 11954] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11954] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11955] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11955] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11954] <... futex resumed>)        = 0
[pid 11954] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11954] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11955] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11955] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11954] <... futex resumed>)        = 0
[pid 11954] exit_group(0)               = ?
[pid 11955] +++ exited with 0 +++
[pid 11954] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11954, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11956 attached
, child_tidptr=0x555587457690) = 11956
[pid 11956] set_robust_list(0x5555874576a0, 24) = 0
[pid 11956] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11956] setpgid(0, 0)               = 0
[pid 11956] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11956] write(3, "1000", 4)         = 4
[pid 11956] close(3)                    = 0
[pid 11956] write(1, "executing program\n", 18executing program
) = 18
[pid 11956] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11956] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11956] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11956] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11956] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11956] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11956] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11957 attached
 => {parent_tid=[11957]}, 88) = 11957
[pid 11957] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11957] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11957] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11956] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11956] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11957] <... futex resumed>)        = 0
[pid 11957] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11957] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11957] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11956] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11956] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11957] <... futex resumed>)        = 0
[pid 11957] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11957] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11957] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11956] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11956] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11957] <... futex resumed>)        = 0
[pid 11957] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11957] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11957] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11956] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11956] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11957] <... futex resumed>)        = 0
[pid 11956] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11957] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11957] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11956] <... futex resumed>)        = 0
[pid 11957] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11956] exit_group(0)               = ?
[pid 11957] <... futex resumed>)        = ?
[pid 11957] +++ exited with 0 +++
[pid 11956] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11956, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11958
./strace-static-x86_64: Process 11958 attached
[pid 11958] set_robust_list(0x5555874576a0, 24) = 0
[pid 11958] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11958] setpgid(0, 0)               = 0
[pid 11958] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11958] write(3, "1000", 4)         = 4
[pid 11958] close(3)                    = 0
[pid 11958] write(1, "executing program\n", 18executing program
) = 18
[pid 11958] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11958] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11958] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11958] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11958] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11958] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11958] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11959 attached
 => {parent_tid=[11959]}, 88) = 11959
[pid 11959] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11959] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11959] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11958] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11958] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11958] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11959] <... futex resumed>)        = 0
[pid 11959] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11959] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11958] <... futex resumed>)        = 0
[pid 11958] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11958] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11959] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11959] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11958] <... futex resumed>)        = 0
[pid 11958] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11958] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11959] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11959] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11958] <... futex resumed>)        = 0
[pid 11958] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11958] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11959] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11959] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11958] <... futex resumed>)        = 0
[pid 11958] exit_group(0)               = ?
[pid 11959] +++ exited with 0 +++
[pid 11958] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11958, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11960
./strace-static-x86_64: Process 11960 attached
[pid 11960] set_robust_list(0x5555874576a0, 24) = 0
[pid 11960] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11960] setpgid(0, 0)               = 0
[pid 11960] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11960] write(3, "1000", 4)         = 4
[pid 11960] close(3)                    = 0
executing program
[pid 11960] write(1, "executing program\n", 18) = 18
[pid 11960] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11960] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11960] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11960] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11960] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11960] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11960] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11961 attached
 => {parent_tid=[11961]}, 88) = 11961
[pid 11961] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11960] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11961] <... set_robust_list resumed>) = 0
[pid 11960] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11961] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11960] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11961] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11960] <... futex resumed>)        = 0
[pid 11961] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11960] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11961] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11961] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11960] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11961] <... futex resumed>)        = 0
[pid 11961] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11960] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11961] <... futex resumed>)        = 0
[pid 11961] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11961] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11961] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11960] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11960] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11961] <... futex resumed>)        = 0
[pid 11961] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11961] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11961] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11960] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11960] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11961] <... futex resumed>)        = 0
[pid 11960] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11961] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11961] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11960] <... futex resumed>)        = 0
[pid 11961] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11960] exit_group(0 <unfinished ...>
[pid 11961] <... futex resumed>)        = ?
[pid 11960] <... exit_group resumed>)   = ?
[pid 11961] +++ exited with 0 +++
[pid 11960] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11960, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11962
./strace-static-x86_64: Process 11962 attached
[pid 11962] set_robust_list(0x5555874576a0, 24) = 0
[pid 11962] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11962] setpgid(0, 0)               = 0
[pid 11962] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11962] write(3, "1000", 4)         = 4
[pid 11962] close(3)                    = 0
[pid 11962] write(1, "executing program\n", 18executing program
) = 18
[pid 11962] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11962] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11962] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11962] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11962] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11962] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11962] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11963 attached
 <unfinished ...>
[pid 11963] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11963] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11963] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11962] <... clone3 resumed> => {parent_tid=[11963]}, 88) = 11963
[pid 11962] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11962] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11962] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11963] <... futex resumed>)        = 0
[pid 11963] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11963] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11962] <... futex resumed>)        = 0
[pid 11962] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11962] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11963] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11963] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11962] <... futex resumed>)        = 0
[pid 11962] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11962] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11963] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11963] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11962] <... futex resumed>)        = 0
[pid 11963] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11962] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11962] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11963] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11963] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11963] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11963] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11962] <... futex resumed>)        = 0
[pid 11962] exit_group(0)               = ?
[pid 11963] <... futex resumed>)        = ?
[pid 11963] +++ exited with 0 +++
[pid 11962] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11962, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11964
./strace-static-x86_64: Process 11964 attached
[pid 11964] set_robust_list(0x5555874576a0, 24) = 0
[pid 11964] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11964] setpgid(0, 0)               = 0
[pid 11964] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11964] write(3, "1000", 4)         = 4
[pid 11964] close(3)                    = 0
executing program
[pid 11964] write(1, "executing program\n", 18) = 18
[pid 11964] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11964] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11964] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11964] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11964] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11964] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11964] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11965]}, 88) = 11965
[pid 11964] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11964] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11964] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11965 attached
 <unfinished ...>
[pid 11965] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11965] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11965] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11965] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11964] <... futex resumed>)        = 0
[pid 11964] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11964] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11965] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11965] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11964] <... futex resumed>)        = 0
[pid 11964] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11964] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11965] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11965] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11964] <... futex resumed>)        = 0
[pid 11964] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11964] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11965] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11965] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11964] <... futex resumed>)        = 0
[pid 11964] exit_group(0)               = ?
[pid 11965] +++ exited with 0 +++
[pid 11964] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11964, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11966 attached
 <unfinished ...>
[pid 11966] set_robust_list(0x5555874576a0, 24) = 0
[pid 11966] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 11966
[pid 11966] <... prctl resumed>)        = 0
[pid 11966] setpgid(0, 0)               = 0
[pid 11966] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11966] write(3, "1000", 4)         = 4
[pid 11966] close(3)                    = 0
[pid 11966] write(1, "executing program\n", 18executing program
) = 18
[pid 11966] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11966] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11966] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11966] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11966] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11966] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11966] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11967]}, 88) = 11967
./strace-static-x86_64: Process 11967 attached
[pid 11966] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11967] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11967] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11967] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11966] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11966] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11967] <... futex resumed>)        = 0
[pid 11967] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11966] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11967] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11967] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11966] <... futex resumed>)        = 0
[pid 11966] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11966] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11967] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11967] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11966] <... futex resumed>)        = 0
[pid 11966] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11966] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11967] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11967] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11966] <... futex resumed>)        = 0
[pid 11966] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11966] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11967] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11967] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11966] <... futex resumed>)        = 0
[pid 11966] exit_group(0)               = ?
[pid 11967] +++ exited with 0 +++
[pid 11966] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11966, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11968
./strace-static-x86_64: Process 11968 attached
[pid 11968] set_robust_list(0x5555874576a0, 24) = 0
[pid 11968] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11968] setpgid(0, 0)               = 0
[pid 11968] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11968] write(3, "1000", 4)         = 4
[pid 11968] close(3executing program
)                    = 0
[pid 11968] write(1, "executing program\n", 18) = 18
[pid 11968] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11968] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11968] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11968] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11968] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11968] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11968] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11969]}, 88) = 11969
./strace-static-x86_64: Process 11969 attached
[pid 11968] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11968] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11968] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11969] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11969] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11969] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11969] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11968] <... futex resumed>)        = 0
[pid 11969] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11968] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11969] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11968] <... futex resumed>)        = 0
[pid 11969] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11968] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11969] <... futex resumed>)        = 0
[pid 11968] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11969] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11968] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11969] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11968] <... futex resumed>)        = 0
[pid 11969] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11968] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11969] <... futex resumed>)        = 0
[pid 11968] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11969] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11968] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11969] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11968] <... futex resumed>)        = 0
[pid 11969] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11968] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11969] <... futex resumed>)        = 0
[pid 11968] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11969] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11968] exit_group(0 <unfinished ...>
[pid 11969] <... futex resumed>)        = ?
[pid 11968] <... exit_group resumed>)   = ?
[pid 11969] +++ exited with 0 +++
[pid 11968] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11968, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11970
./strace-static-x86_64: Process 11970 attached
[pid 11970] set_robust_list(0x5555874576a0, 24) = 0
[pid 11970] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11970] setpgid(0, 0)               = 0
[pid 11970] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11970] write(3, "1000", 4)         = 4
[pid 11970] close(3)                    = 0
[pid 11970] write(1, "executing program\n", 18executing program
) = 18
[pid 11970] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11970] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11970] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11970] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11970] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11970] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11970] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11971 attached
 => {parent_tid=[11971]}, 88) = 11971
[pid 11970] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11971] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11970] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11971] <... set_robust_list resumed>) = 0
[pid 11970] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11971] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11970] <... futex resumed>)        = 0
[pid 11971] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11970] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11971] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11971] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11970] <... futex resumed>)        = 0
[pid 11971] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11970] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11971] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11970] <... futex resumed>)        = 0
[pid 11971] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11970] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11971] <... futex resumed>)        = 0
[pid 11970] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11971] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11970] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11971] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11970] <... futex resumed>)        = 0
[pid 11971] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11970] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11971] <... futex resumed>)        = 0
[pid 11970] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11971] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11970] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11971] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11970] <... futex resumed>)        = 0
[pid 11971] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11970] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11971] <... futex resumed>)        = 0
[pid 11970] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11971] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11970] exit_group(0 <unfinished ...>
[pid 11971] <... futex resumed>)        = ?
[pid 11970] <... exit_group resumed>)   = ?
[pid 11971] +++ exited with 0 +++
[pid 11970] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11970, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11972
./strace-static-x86_64: Process 11972 attached
[pid 11972] set_robust_list(0x5555874576a0, 24) = 0
[pid 11972] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11972] setpgid(0, 0)               = 0
[pid 11972] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11972] write(3, "1000", 4)         = 4
[pid 11972] close(3)                    = 0
[pid 11972] write(1, "executing program\n", 18executing program
) = 18
[pid 11972] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11972] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11972] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11972] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11972] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11972] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11972] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11973 attached
 => {parent_tid=[11973]}, 88) = 11973
[pid 11972] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11972] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11972] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11973] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11973] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11973] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11973] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11972] <... futex resumed>)        = 0
[pid 11973] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11972] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11973] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11972] <... futex resumed>)        = 0
[pid 11973] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11972] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11973] <... futex resumed>)        = 0
[pid 11972] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11973] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11972] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11973] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11972] <... futex resumed>)        = 0
[pid 11973] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11972] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11973] <... futex resumed>)        = 0
[pid 11972] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11973] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11972] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11973] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11972] <... futex resumed>)        = 0
[pid 11973] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11972] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11973] <... futex resumed>)        = 0
[pid 11972] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11973] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11972] exit_group(0 <unfinished ...>
[pid 11973] <... futex resumed>)        = ?
[pid 11972] <... exit_group resumed>)   = ?
[pid 11973] +++ exited with 0 +++
[pid 11972] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11972, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11974 attached
, child_tidptr=0x555587457690) = 11974
[pid 11974] set_robust_list(0x5555874576a0, 24) = 0
[pid 11974] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11974] setpgid(0, 0)               = 0
[pid 11974] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11974] write(3, "1000", 4)         = 4
[pid 11974] close(3)                    = 0
executing program
[pid 11974] write(1, "executing program\n", 18) = 18
[pid 11974] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11974] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11974] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11974] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11974] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11974] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11974] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11975 attached
 => {parent_tid=[11975]}, 88) = 11975
[pid 11974] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11974] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11974] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11975] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11975] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11975] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11975] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11974] <... futex resumed>)        = 0
[pid 11974] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11974] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11975] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11975] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11974] <... futex resumed>)        = 0
[pid 11974] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11974] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11975] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11975] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11974] <... futex resumed>)        = 0
[pid 11974] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11974] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11975] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11975] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11974] <... futex resumed>)        = 0
[pid 11974] exit_group(0)               = ?
[pid 11975] +++ exited with 0 +++
[pid 11974] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11974, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11976
./strace-static-x86_64: Process 11976 attached
[pid 11976] set_robust_list(0x5555874576a0, 24) = 0
[pid 11976] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11976] setpgid(0, 0)               = 0
[pid 11976] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11976] write(3, "1000", 4)         = 4
[pid 11976] close(3)                    = 0
executing program
[pid 11976] write(1, "executing program\n", 18) = 18
[pid 11976] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11976] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11976] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11976] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11976] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11976] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11976] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11977]}, 88) = 11977
[pid 11976] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11976] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11976] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11977 attached
 <unfinished ...>
[pid 11977] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11977] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11977] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11977] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11976] <... futex resumed>)        = 0
[pid 11976] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11976] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11977] <... futex resumed>)        = 1
[pid 11977] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11977] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11976] <... futex resumed>)        = 0
[pid 11976] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11976] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11977] <... futex resumed>)        = 1
[pid 11977] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11977] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11976] <... futex resumed>)        = 0
[pid 11976] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11976] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11977] <... futex resumed>)        = 1
[pid 11977] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11977] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11976] <... futex resumed>)        = 0
[pid 11976] exit_group(0)               = ?
[pid 11977] <... futex resumed>)        = ?
[pid 11977] +++ exited with 0 +++
[pid 11976] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11976, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11978
./strace-static-x86_64: Process 11978 attached
[pid 11978] set_robust_list(0x5555874576a0, 24) = 0
[pid 11978] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11978] setpgid(0, 0)               = 0
[pid 11978] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11978] write(3, "1000", 4)         = 4
[pid 11978] close(3)                    = 0
[pid 11978] write(1, "executing program\n", 18executing program
) = 18
[pid 11978] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11978] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11978] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11978] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11978] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11978] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11978] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11979]}, 88) = 11979
[pid 11978] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11978] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11978] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11979 attached
 <unfinished ...>
[pid 11979] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11979] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11979] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11979] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11979] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11978] <... futex resumed>)        = 0
[pid 11978] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11979] <... futex resumed>)        = 0
[pid 11979] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11979] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11979] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11978] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11978] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11979] <... futex resumed>)        = 0
[pid 11979] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11979] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11979] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11978] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11978] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11979] <... futex resumed>)        = 0
[pid 11978] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11979] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11979] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11979] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11978] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11978] exit_group(0)               = ?
[pid 11979] <... futex resumed>)        = ?
[pid 11979] +++ exited with 0 +++
[pid 11978] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11978, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11980 attached
, child_tidptr=0x555587457690) = 11980
[pid 11980] set_robust_list(0x5555874576a0, 24) = 0
[pid 11980] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11980] setpgid(0, 0)               = 0
[pid 11980] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11980] write(3, "1000", 4)         = 4
[pid 11980] close(3)                    = 0
[pid 11980] write(1, "executing program\n", 18executing program
) = 18
[pid 11980] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11980] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11980] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11980] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11980] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11980] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11980] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11981 attached
 => {parent_tid=[11981]}, 88) = 11981
[pid 11981] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11980] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11981] <... set_robust_list resumed>) = 0
[pid 11981] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11981] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11980] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11980] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11981] <... futex resumed>)        = 0
[pid 11981] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11981] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11981] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11980] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11980] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11981] <... futex resumed>)        = 0
[pid 11980] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11981] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11981] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11981] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11980] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11980] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11981] <... futex resumed>)        = 0
[pid 11981] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11981] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11980] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11981] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11980] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11981] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11980] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11980] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11981] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11981] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11980] <... futex resumed>)        = 0
[pid 11981] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11980] exit_group(0)               = ?
[pid 11981] <... futex resumed>)        = ?
[pid 11981] +++ exited with 0 +++
[pid 11980] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11980, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11982
./strace-static-x86_64: Process 11982 attached
[pid 11982] set_robust_list(0x5555874576a0, 24) = 0
[pid 11982] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11982] setpgid(0, 0)               = 0
[pid 11982] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11982] write(3, "1000", 4)         = 4
[pid 11982] close(3)                    = 0
[pid 11982] write(1, "executing program\n", 18executing program
) = 18
[pid 11982] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11982] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11982] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11982] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11982] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11982] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11982] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11983 attached
 <unfinished ...>
[pid 11983] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11983] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11983] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11982] <... clone3 resumed> => {parent_tid=[11983]}, 88) = 11983
[pid 11982] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11982] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11983] <... futex resumed>)        = 0
[pid 11983] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11983] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11983] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11982] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11982] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11983] <... futex resumed>)        = 0
[pid 11983] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11983] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11983] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11982] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11982] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11983] <... futex resumed>)        = 0
[pid 11983] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11983] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11983] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11982] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11982] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11983] <... futex resumed>)        = 0
[pid 11983] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11983] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11983] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11982] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11982] exit_group(0)               = ?
[pid 11983] <... futex resumed>)        = ?
[pid 11983] +++ exited with 0 +++
[pid 11982] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11982, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11984
./strace-static-x86_64: Process 11984 attached
[pid 11984] set_robust_list(0x5555874576a0, 24) = 0
[pid 11984] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11984] setpgid(0, 0)               = 0
[pid 11984] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11984] write(3, "1000", 4)         = 4
[pid 11984] close(3)                    = 0
[pid 11984] write(1, "executing program\n", 18executing program
) = 18
[pid 11984] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11984] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11984] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11984] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11984] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11984] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11984] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11985 attached
 => {parent_tid=[11985]}, 88) = 11985
[pid 11984] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11984] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11984] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11985] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11985] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11985] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11985] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11985] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11984] <... futex resumed>)        = 0
[pid 11984] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11985] <... futex resumed>)        = 0
[pid 11985] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11985] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11985] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11984] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11984] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11985] <... futex resumed>)        = 0
[pid 11985] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11985] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11985] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11984] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11984] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11985] <... futex resumed>)        = 0
[pid 11985] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11985] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11985] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11984] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11984] exit_group(0)               = ?
[pid 11985] <... futex resumed>)        = ?
[pid 11985] +++ exited with 0 +++
[pid 11984] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11984, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11986
./strace-static-x86_64: Process 11986 attached
[pid 11986] set_robust_list(0x5555874576a0, 24) = 0
[pid 11986] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11986] setpgid(0, 0)               = 0
[pid 11986] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11986] write(3, "1000", 4)         = 4
[pid 11986] close(3)                    = 0
[pid 11986] write(1, "executing program\n", 18executing program
) = 18
[pid 11986] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11986] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11986] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11986] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11986] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11986] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11986] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11987 attached
 => {parent_tid=[11987]}, 88) = 11987
[pid 11987] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11987] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11987] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11986] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11986] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11987] <... futex resumed>)        = 0
[pid 11987] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11987] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11987] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11986] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11986] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11987] <... futex resumed>)        = 0
[pid 11987] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11987] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11987] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11986] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11986] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11987] <... futex resumed>)        = 0
[pid 11987] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11987] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11987] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11986] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11986] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11987] <... futex resumed>)        = 0
[pid 11987] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11986] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11987] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11987] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11987] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11986] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11986] exit_group(0)               = ?
[pid 11987] <... futex resumed>)        = ?
[pid 11987] +++ exited with 0 +++
[pid 11986] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11986, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11988
./strace-static-x86_64: Process 11988 attached
[pid 11988] set_robust_list(0x5555874576a0, 24) = 0
[pid 11988] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11988] setpgid(0, 0)               = 0
[pid 11988] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11988] write(3, "1000", 4)         = 4
[pid 11988] close(3)                    = 0
[pid 11988] write(1, "executing program\n", 18executing program
) = 18
[pid 11988] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11988] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11988] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11988] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11988] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11988] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11988] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11989 attached
 => {parent_tid=[11989]}, 88) = 11989
[pid 11988] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11989] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11988] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11988] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11988] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11989] <... set_robust_list resumed>) = 0
[pid 11989] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11989] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11989] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11988] <... futex resumed>)        = 0
[pid 11988] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11988] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11989] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11989] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11988] <... futex resumed>)        = 0
[pid 11988] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11988] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11989] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11989] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11988] <... futex resumed>)        = 0
[pid 11988] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11988] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11989] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11989] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11988] <... futex resumed>)        = 0
[pid 11988] exit_group(0)               = ?
[pid 11989] +++ exited with 0 +++
[pid 11988] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11988, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11990 attached
 <unfinished ...>
[pid 11990] set_robust_list(0x5555874576a0, 24) = 0
[pid 11990] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 11990
[pid 11990] <... prctl resumed>)        = 0
[pid 11990] setpgid(0, 0)               = 0
[pid 11990] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11990] write(3, "1000", 4)         = 4
[pid 11990] close(3executing program
)                    = 0
[pid 11990] write(1, "executing program\n", 18) = 18
[pid 11990] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11990] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11990] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11990] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11990] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11990] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11990] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11991 attached
 <unfinished ...>
[pid 11991] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11990] <... clone3 resumed> => {parent_tid=[11991]}, 88) = 11991
[pid 11990] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11991] <... set_robust_list resumed>) = 0
[pid 11991] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11990] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11991] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11990] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11991] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11990] <... futex resumed>)        = 0
[pid 11990] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11991] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11991] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11990] <... futex resumed>)        = 0
[pid 11990] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11990] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11991] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11991] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11990] <... futex resumed>)        = 0
[pid 11990] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11990] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11991] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11991] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11990] <... futex resumed>)        = 0
[pid 11990] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11990] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11991] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11991] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11990] <... futex resumed>)        = 0
[pid 11990] exit_group(0)               = ?
[pid 11991] +++ exited with 0 +++
[pid 11990] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11990, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11992
./strace-static-x86_64: Process 11992 attached
[pid 11992] set_robust_list(0x5555874576a0, 24) = 0
[pid 11992] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11992] setpgid(0, 0)               = 0
[pid 11992] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11992] write(3, "1000", 4)         = 4
[pid 11992] close(3)                    = 0
executing program
[pid 11992] write(1, "executing program\n", 18) = 18
[pid 11992] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11992] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11992] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11992] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11992] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11992] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11992] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11993]}, 88) = 11993
./strace-static-x86_64: Process 11993 attached
[pid 11992] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11992] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11992] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11993] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11993] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11993] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11993] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11992] <... futex resumed>)        = 0
[pid 11993] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11992] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11993] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11992] <... futex resumed>)        = 0
[pid 11993] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11992] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11993] <... futex resumed>)        = 0
[pid 11992] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11993] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11992] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11993] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11992] <... futex resumed>)        = 0
[pid 11993] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11992] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11993] <... futex resumed>)        = 0
[pid 11992] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11993] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11992] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11993] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11992] <... futex resumed>)        = 0
[pid 11993] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11992] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11993] <... futex resumed>)        = 0
[pid 11992] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11993] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11992] exit_group(0 <unfinished ...>
[pid 11993] <... futex resumed>)        = ?
[pid 11992] <... exit_group resumed>)   = ?
[pid 11993] +++ exited with 0 +++
[pid 11992] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11992, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11994
./strace-static-x86_64: Process 11994 attached
[pid 11994] set_robust_list(0x5555874576a0, 24) = 0
[pid 11994] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11994] setpgid(0, 0)               = 0
[pid 11994] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11994] write(3, "1000", 4)         = 4
[pid 11994] close(3)                    = 0
executing program
[pid 11994] write(1, "executing program\n", 18) = 18
[pid 11994] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11994] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11994] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11994] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11994] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11994] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11994] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11995]}, 88) = 11995
[pid 11994] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11994] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11994] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11995 attached
 <unfinished ...>
[pid 11995] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11995] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11995] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11995] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11994] <... futex resumed>)        = 0
[pid 11994] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11994] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11995] <... futex resumed>)        = 1
[pid 11995] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11995] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11994] <... futex resumed>)        = 0
[pid 11994] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11994] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11995] <... futex resumed>)        = 1
[pid 11995] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11995] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11994] <... futex resumed>)        = 0
[pid 11994] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11995] <... futex resumed>)        = 1
[pid 11994] <... futex resumed>)        = 0
[pid 11994] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11995] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11995] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11994] <... futex resumed>)        = 0
[pid 11994] exit_group(0)               = ?
[pid 11995] <... futex resumed>)        = ?
[pid 11995] +++ exited with 0 +++
[pid 11994] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11994, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11996
./strace-static-x86_64: Process 11996 attached
[pid 11996] set_robust_list(0x5555874576a0, 24) = 0
[pid 11996] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11996] setpgid(0, 0)               = 0
[pid 11996] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11996] write(3, "1000", 4)         = 4
[pid 11996] close(3)                    = 0
[pid 11996] write(1, "executing program\n", 18executing program
) = 18
[pid 11996] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11996] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11996] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11996] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11996] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11996] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11996] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[11997]}, 88) = 11997
./strace-static-x86_64: Process 11997 attached
[pid 11996] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11996] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11996] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11997] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 11997] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11997] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11997] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11996] <... futex resumed>)        = 0
[pid 11997] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11996] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11996] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11997] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11997] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11997] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11996] <... futex resumed>)        = 0
[pid 11996] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11996] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11997] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11997] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11996] <... futex resumed>)        = 0
[pid 11996] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11996] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11997] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11997] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11996] <... futex resumed>)        = 0
[pid 11996] exit_group(0)               = ?
[pid 11997] +++ exited with 0 +++
[pid 11996] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11996, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 11998
./strace-static-x86_64: Process 11998 attached
[pid 11998] set_robust_list(0x5555874576a0, 24) = 0
[pid 11998] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11998] setpgid(0, 0)               = 0
[pid 11998] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11998] write(3, "1000", 4)         = 4
[pid 11998] close(3)                    = 0
executing program
[pid 11998] write(1, "executing program\n", 18) = 18
[pid 11998] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11998] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 11998] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11998] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 11998] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11998] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11998] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 11999 attached
 => {parent_tid=[11999]}, 88) = 11999
[pid 11999] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 11998] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11999] <... set_robust_list resumed>) = 0
[pid 11998] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11999] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11998] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11999] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11998] <... futex resumed>)        = 0
[pid 11999] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11998] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11999] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11999] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11998] <... futex resumed>)        = 0
[pid 11999] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11998] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11999] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11998] <... futex resumed>)        = 0
[pid 11999] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11998] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11999] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11999] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11998] <... futex resumed>)        = 0
[pid 11998] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11998] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11999] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11999] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11998] <... futex resumed>)        = 0
[pid 11998] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11998] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11999] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11999] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11998] <... futex resumed>)        = 0
[pid 11998] exit_group(0)               = ?
[pid 11999] +++ exited with 0 +++
[pid 11998] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11998, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12000 attached
, child_tidptr=0x555587457690) = 12000
[pid 12000] set_robust_list(0x5555874576a0, 24) = 0
[pid 12000] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12000] setpgid(0, 0)               = 0
[pid 12000] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12000] write(3, "1000", 4)         = 4
[pid 12000] close(3)                    = 0
executing program
[pid 12000] write(1, "executing program\n", 18) = 18
[pid 12000] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12000] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12000] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12000] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12000] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12000] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12000] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12001 attached
 => {parent_tid=[12001]}, 88) = 12001
[pid 12001] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12000] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12000] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12000] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12001] <... set_robust_list resumed>) = 0
[pid 12001] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12001] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12001] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12000] <... futex resumed>)        = 0
[pid 12000] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12000] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12001] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12001] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12000] <... futex resumed>)        = 0
[pid 12001] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12000] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12000] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12001] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12001] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12000] <... futex resumed>)        = 0
[pid 12001] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12000] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12000] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12001] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12001] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12001] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12000] <... futex resumed>)        = 0
[pid 12001] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12000] exit_group(0)               = ?
[pid 12001] <... futex resumed>)        = ?
[pid 12001] +++ exited with 0 +++
[pid 12000] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12000, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12002
./strace-static-x86_64: Process 12002 attached
[pid 12002] set_robust_list(0x5555874576a0, 24) = 0
[pid 12002] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12002] setpgid(0, 0)               = 0
[pid 12002] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12002] write(3, "1000", 4)         = 4
[pid 12002] close(3)                    = 0
[pid 12002] write(1, "executing program\n", 18executing program
) = 18
[pid 12002] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12002] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12002] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12002] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12002] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12002] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12002] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12003 attached
 => {parent_tid=[12003]}, 88) = 12003
[pid 12003] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12002] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12002] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12002] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12003] <... set_robust_list resumed>) = 0
[pid 12003] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12003] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12003] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12002] <... futex resumed>)        = 0
[pid 12003] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12002] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12003] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12002] <... futex resumed>)        = 0
[pid 12003] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12002] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12003] <... futex resumed>)        = 0
[pid 12002] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12003] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12002] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12003] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12002] <... futex resumed>)        = 0
[pid 12003] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12002] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12003] <... futex resumed>)        = 0
[pid 12002] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12003] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12002] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12003] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12002] <... futex resumed>)        = 0
[pid 12003] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12002] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12003] <... futex resumed>)        = 0
[pid 12002] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12003] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12002] exit_group(0 <unfinished ...>
[pid 12003] <... futex resumed>)        = ?
[pid 12002] <... exit_group resumed>)   = ?
[pid 12003] +++ exited with 0 +++
[pid 12002] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12002, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12004
./strace-static-x86_64: Process 12004 attached
[pid 12004] set_robust_list(0x5555874576a0, 24) = 0
[pid 12004] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12004] setpgid(0, 0)               = 0
[pid 12004] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12004] write(3, "1000", 4)         = 4
[pid 12004] close(3)                    = 0
executing program
[pid 12004] write(1, "executing program\n", 18) = 18
[pid 12004] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12004] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12004] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12004] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12004] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12004] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12004] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12005 attached
 => {parent_tid=[12005]}, 88) = 12005
[pid 12004] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12004] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12004] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12005] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12005] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12005] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12005] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12004] <... futex resumed>)        = 0
[pid 12005] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12004] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12005] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12004] <... futex resumed>)        = 0
[pid 12005] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12004] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12005] <... futex resumed>)        = 0
[pid 12004] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12005] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12004] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12005] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12004] <... futex resumed>)        = 0
[pid 12005] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12004] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12005] <... futex resumed>)        = 0
[pid 12004] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12005] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12004] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12005] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12004] <... futex resumed>)        = 0
[pid 12005] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12004] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12005] <... futex resumed>)        = 0
[pid 12004] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12005] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12004] exit_group(0 <unfinished ...>
[pid 12005] <... futex resumed>)        = ?
[pid 12004] <... exit_group resumed>)   = ?
[pid 12005] +++ exited with 0 +++
[pid 12004] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12004, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12006
./strace-static-x86_64: Process 12006 attached
[pid 12006] set_robust_list(0x5555874576a0, 24) = 0
[pid 12006] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12006] setpgid(0, 0)               = 0
[pid 12006] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12006] write(3, "1000", 4)         = 4
[pid 12006] close(3)                    = 0
executing program
[pid 12006] write(1, "executing program\n", 18) = 18
[pid 12006] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12006] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12006] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12006] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12006] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12006] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12006] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12007 attached
 => {parent_tid=[12007]}, 88) = 12007
[pid 12006] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12006] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12006] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12007] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12007] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12007] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12007] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12006] <... futex resumed>)        = 0
[pid 12007] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12006] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12007] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12006] <... futex resumed>)        = 0
[pid 12007] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12006] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12007] <... futex resumed>)        = 0
[pid 12006] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12007] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12006] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12007] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12006] <... futex resumed>)        = 0
[pid 12007] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12006] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12007] <... futex resumed>)        = 0
[pid 12006] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12007] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12006] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12007] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12006] <... futex resumed>)        = 0
[pid 12007] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12006] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12007] <... futex resumed>)        = 0
[pid 12006] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12007] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12006] exit_group(0 <unfinished ...>
[pid 12007] <... futex resumed>)        = ?
[pid 12006] <... exit_group resumed>)   = ?
[pid 12007] +++ exited with 0 +++
[pid 12006] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12006, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12008
./strace-static-x86_64: Process 12008 attached
[pid 12008] set_robust_list(0x5555874576a0, 24) = 0
[pid 12008] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12008] setpgid(0, 0)               = 0
[pid 12008] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12008] write(3, "1000", 4)         = 4
[pid 12008] close(3)                    = 0
[pid 12008] write(1, "executing program\n", 18executing program
) = 18
[pid 12008] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12008] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12008] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12008] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12008] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12008] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12008] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12009]}, 88) = 12009
[pid 12008] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12008] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12008] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12009 attached
 <unfinished ...>
[pid 12009] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12009] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12009] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12009] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12008] <... futex resumed>)        = 0
[pid 12008] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12008] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12009] <... futex resumed>)        = 1
[pid 12009] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12009] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12008] <... futex resumed>)        = 0
[pid 12008] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12008] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12009] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12009] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12008] <... futex resumed>)        = 0
[pid 12009] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12008] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12008] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12009] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12009] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12009] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12008] <... futex resumed>)        = 0
[pid 12008] exit_group(0)               = ?
[pid 12009] +++ exited with 0 +++
[pid 12008] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12008, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12010
./strace-static-x86_64: Process 12010 attached
[pid 12010] set_robust_list(0x5555874576a0, 24) = 0
[pid 12010] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12010] setpgid(0, 0)               = 0
[pid 12010] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12010] write(3, "1000", 4)         = 4
[pid 12010] close(3)                    = 0
executing program
[pid 12010] write(1, "executing program\n", 18) = 18
[pid 12010] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12010] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12010] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12010] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12010] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12010] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12010] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12011]}, 88) = 12011
[pid 12010] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12010] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12010] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12011 attached
 <unfinished ...>
[pid 12011] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12011] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12011] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12011] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12010] <... futex resumed>)        = 0
[pid 12010] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12010] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12011] <... futex resumed>)        = 1
[pid 12011] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12011] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12010] <... futex resumed>)        = 0
[pid 12010] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12010] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12011] <... futex resumed>)        = 1
[pid 12011] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12011] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12010] <... futex resumed>)        = 0
[pid 12010] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12010] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12011] <... futex resumed>)        = 1
[pid 12011] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12011] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12010] <... futex resumed>)        = 0
[pid 12010] exit_group(0)               = ?
[pid 12011] +++ exited with 0 +++
[pid 12010] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12010, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12012 attached
, child_tidptr=0x555587457690) = 12012
[pid 12012] set_robust_list(0x5555874576a0, 24) = 0
[pid 12012] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12012] setpgid(0, 0)               = 0
[pid 12012] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12012] write(3, "1000", 4)         = 4
[pid 12012] close(3executing program
)                    = 0
[pid 12012] write(1, "executing program\n", 18) = 18
[pid 12012] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12012] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12012] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12012] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12012] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12012] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12012] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12013]}, 88) = 12013
[pid 12012] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12012] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12012] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12013 attached
 <unfinished ...>
[pid 12013] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12013] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12013] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12013] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12012] <... futex resumed>)        = 0
[pid 12012] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12012] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12013] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12013] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12012] <... futex resumed>)        = 0
[pid 12012] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12012] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12013] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12013] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12012] <... futex resumed>)        = 0
[pid 12012] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12012] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12013] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12013] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12012] <... futex resumed>)        = 0
[pid 12012] exit_group(0)               = ?
[pid 12013] +++ exited with 0 +++
[pid 12012] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12012, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12014 attached
, child_tidptr=0x555587457690) = 12014
[pid 12014] set_robust_list(0x5555874576a0, 24) = 0
[pid 12014] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12014] setpgid(0, 0)               = 0
[pid 12014] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12014] write(3, "1000", 4)         = 4
[pid 12014] close(3)                    = 0
[pid 12014] write(1, "executing program\n", 18executing program
) = 18
[pid 12014] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12014] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12014] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12014] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12014] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12014] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12014] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12015 attached
 => {parent_tid=[12015]}, 88) = 12015
[pid 12015] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12015] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12014] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12015] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12015] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12014] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12014] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12015] <... futex resumed>)        = 0
[pid 12015] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12015] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12014] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12015] <... futex resumed>)        = 0
[pid 12015] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12014] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12014] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12015] <... futex resumed>)        = 0
[pid 12015] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12015] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12015] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12014] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12014] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12015] <... futex resumed>)        = 0
[pid 12015] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12014] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12015] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12015] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12014] <... futex resumed>)        = 0
[pid 12014] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12014] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12015] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12015] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12014] <... futex resumed>)        = 0
[pid 12014] exit_group(0)               = ?
[pid 12015] +++ exited with 0 +++
[pid 12014] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12014, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12016
./strace-static-x86_64: Process 12016 attached
[pid 12016] set_robust_list(0x5555874576a0, 24) = 0
[pid 12016] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12016] setpgid(0, 0)               = 0
[pid 12016] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12016] write(3, "1000", 4)         = 4
[pid 12016] close(3)                    = 0
executing program
[pid 12016] write(1, "executing program\n", 18) = 18
[pid 12016] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12016] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12016] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12016] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12016] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12016] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12016] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12017 attached
 => {parent_tid=[12017]}, 88) = 12017
[pid 12017] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12017] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12017] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12016] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12016] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12017] <... futex resumed>)        = 0
[pid 12017] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12016] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12017] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12017] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12017] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12016] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12016] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12017] <... futex resumed>)        = 0
[pid 12017] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12016] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12017] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12016] <... futex resumed>)        = 0
[pid 12016] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12016] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12017] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12017] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12016] <... futex resumed>)        = 0
[pid 12016] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12016] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12017] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12017] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12016] <... futex resumed>)        = 0
[pid 12016] exit_group(0)               = ?
[pid 12017] +++ exited with 0 +++
[pid 12016] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12016, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12018
./strace-static-x86_64: Process 12018 attached
[pid 12018] set_robust_list(0x5555874576a0, 24) = 0
[pid 12018] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12018] setpgid(0, 0)               = 0
[pid 12018] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12018] write(3, "1000", 4)         = 4
[pid 12018] close(3)                    = 0
[pid 12018] write(1, "executing program\n", 18executing program
) = 18
[pid 12018] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12018] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12018] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12018] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12018] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12018] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12018] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12019 attached
 => {parent_tid=[12019]}, 88) = 12019
[pid 12019] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12019] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12019] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12018] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12018] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12019] <... futex resumed>)        = 0
[pid 12019] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12018] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12019] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12019] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12018] <... futex resumed>)        = 0
[pid 12018] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12019] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12018] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12019] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12019] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12018] <... futex resumed>)        = 0
[pid 12018] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12018] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12019] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12019] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12018] <... futex resumed>)        = 0
[pid 12018] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12018] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12019] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12019] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12018] <... futex resumed>)        = 0
[pid 12018] exit_group(0)               = ?
[pid 12019] +++ exited with 0 +++
[pid 12018] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12018, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12020 attached
, child_tidptr=0x555587457690) = 12020
[pid 12020] set_robust_list(0x5555874576a0, 24) = 0
[pid 12020] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12020] setpgid(0, 0)               = 0
[pid 12020] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12020] write(3, "1000", 4)         = 4
[pid 12020] close(3)                    = 0
executing program
[pid 12020] write(1, "executing program\n", 18) = 18
[pid 12020] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12020] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12020] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12020] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12020] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12020] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12020] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12021 attached
 => {parent_tid=[12021]}, 88) = 12021
[pid 12020] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12020] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12020] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12021] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12021] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12021] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12021] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12020] <... futex resumed>)        = 0
[pid 12020] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12020] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12021] <... futex resumed>)        = 1
[pid 12021] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12021] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12020] <... futex resumed>)        = 0
[pid 12020] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12020] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12021] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12021] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12020] <... futex resumed>)        = 0
[pid 12020] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12020] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12021] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12021] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12020] <... futex resumed>)        = 0
[pid 12020] exit_group(0 <unfinished ...>
[pid 12021] ????( <unfinished ...>
[pid 12020] <... exit_group resumed>)   = ?
[pid 12021] <... ???? resumed>)         = ?
[pid 12021] +++ exited with 0 +++
[pid 12020] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12020, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12022
./strace-static-x86_64: Process 12022 attached
[pid 12022] set_robust_list(0x5555874576a0, 24) = 0
[pid 12022] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12022] setpgid(0, 0)               = 0
[pid 12022] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12022] write(3, "1000", 4)         = 4
[pid 12022] close(3)                    = 0
[pid 12022] write(1, "executing program\n", 18executing program
) = 18
[pid 12022] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12022] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12022] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12022] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12022] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12022] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12022] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12023 attached
 <unfinished ...>
[pid 12023] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12023] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12023] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12022] <... clone3 resumed> => {parent_tid=[12023]}, 88) = 12023
[pid 12022] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12022] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12023] <... futex resumed>)        = 0
[pid 12023] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12023] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12023] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12022] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12022] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12023] <... futex resumed>)        = 0
[pid 12023] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12023] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12023] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12022] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12022] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12023] <... futex resumed>)        = 0
[pid 12023] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12023] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12023] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12022] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12022] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12023] <... futex resumed>)        = 0
[pid 12022] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12023] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12023] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12023] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12022] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12022] exit_group(0)               = ?
[pid 12023] <... futex resumed>)        = ?
[pid 12023] +++ exited with 0 +++
[pid 12022] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12022, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12024
./strace-static-x86_64: Process 12024 attached
[pid 12024] set_robust_list(0x5555874576a0, 24) = 0
[pid 12024] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12024] setpgid(0, 0)               = 0
[pid 12024] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12024] write(3, "1000", 4)         = 4
[pid 12024] close(3)                    = 0
executing program
[pid 12024] write(1, "executing program\n", 18) = 18
[pid 12024] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12024] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12024] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12024] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12024] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12024] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12024] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12025 attached
 => {parent_tid=[12025]}, 88) = 12025
[pid 12024] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12024] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12024] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12025] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12025] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12025] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12025] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12024] <... futex resumed>)        = 0
[pid 12024] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12024] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12025] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12025] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12024] <... futex resumed>)        = 0
[pid 12024] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12024] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12025] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12025] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12024] <... futex resumed>)        = 0
[pid 12024] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12024] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12025] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12025] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12024] <... futex resumed>)        = 0
[pid 12024] exit_group(0)               = ?
[pid 12025] +++ exited with 0 +++
[pid 12024] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12024, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12026
./strace-static-x86_64: Process 12026 attached
[pid 12026] set_robust_list(0x5555874576a0, 24) = 0
[pid 12026] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12026] setpgid(0, 0)               = 0
[pid 12026] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12026] write(3, "1000", 4executing program
)         = 4
[pid 12026] close(3)                    = 0
[pid 12026] write(1, "executing program\n", 18) = 18
[pid 12026] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12026] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12026] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12026] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12026] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12026] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12026] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12027 attached
 => {parent_tid=[12027]}, 88) = 12027
[pid 12026] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12026] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12026] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12027] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12027] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12027] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12027] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12026] <... futex resumed>)        = 0
[pid 12026] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12026] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12027] <... futex resumed>)        = 1
[pid 12027] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12027] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12026] <... futex resumed>)        = 0
[pid 12026] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12026] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12027] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12027] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12026] <... futex resumed>)        = 0
[pid 12027] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12026] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12026] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12027] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12027] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12026] <... futex resumed>)        = 0
[pid 12026] exit_group(0 <unfinished ...>
[pid 12027] ????( <unfinished ...>
[pid 12026] <... exit_group resumed>)   = ?
[pid 12027] <... ???? resumed>)         = ?
[pid 12027] +++ exited with 0 +++
[pid 12026] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12026, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12028
./strace-static-x86_64: Process 12028 attached
[pid 12028] set_robust_list(0x5555874576a0, 24) = 0
[pid 12028] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12028] setpgid(0, 0)               = 0
[pid 12028] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12028] write(3, "1000", 4)         = 4
executing program
[pid 12028] close(3)                    = 0
[pid 12028] write(1, "executing program\n", 18) = 18
[pid 12028] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12028] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12028] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12028] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12028] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12028] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12028] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12029]}, 88) = 12029
[pid 12028] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12028] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12028] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12029 attached
 <unfinished ...>
[pid 12029] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12029] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12029] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12029] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12028] <... futex resumed>)        = 0
[pid 12028] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12028] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12029] <... futex resumed>)        = 1
[pid 12029] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12029] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12028] <... futex resumed>)        = 0
[pid 12028] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12028] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12029] <... futex resumed>)        = 1
[pid 12029] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12029] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12028] <... futex resumed>)        = 0
[pid 12028] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12028] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12029] <... futex resumed>)        = 1
[pid 12029] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12029] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12028] <... futex resumed>)        = 0
[pid 12028] exit_group(0)               = ?
[pid 12029] <... futex resumed>)        = ?
[pid 12029] +++ exited with 0 +++
[pid 12028] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12028, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12030
./strace-static-x86_64: Process 12030 attached
[pid 12030] set_robust_list(0x5555874576a0, 24) = 0
[pid 12030] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12030] setpgid(0, 0)               = 0
[pid 12030] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12030] write(3, "1000", 4)         = 4
[pid 12030] close(3)                    = 0
executing program
[pid 12030] write(1, "executing program\n", 18) = 18
[pid 12030] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12030] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12030] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12030] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12030] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12030] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12030] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12031]}, 88) = 12031
[pid 12030] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12030] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12030] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12031 attached
 <unfinished ...>
[pid 12031] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12031] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12031] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12031] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12030] <... futex resumed>)        = 0
[pid 12030] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12030] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12031] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12031] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12030] <... futex resumed>)        = 0
[pid 12030] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12030] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12031] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12031] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12030] <... futex resumed>)        = 0
[pid 12030] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12030] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12031] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12031] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12030] <... futex resumed>)        = 0
[pid 12030] exit_group(0)               = ?
[pid 12031] +++ exited with 0 +++
[pid 12030] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12030, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12032 attached
, child_tidptr=0x555587457690) = 12032
[pid 12032] set_robust_list(0x5555874576a0, 24) = 0
[pid 12032] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12032] setpgid(0, 0)               = 0
[pid 12032] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12032] write(3, "1000", 4)         = 4
[pid 12032] close(3)                    = 0
[pid 12032] write(1, "executing program\n", 18executing program
) = 18
[pid 12032] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12032] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12032] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12032] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12032] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12032] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12032] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12033 attached
 => {parent_tid=[12033]}, 88) = 12033
[pid 12033] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12033] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12033] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12032] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12032] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12033] <... futex resumed>)        = 0
[pid 12033] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12032] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12033] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12033] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12032] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12032] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12033] <... futex resumed>)        = 0
[pid 12033] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12032] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12033] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12033] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12032] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12032] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12033] <... futex resumed>)        = 0
[pid 12033] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12032] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12033] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12032] <... futex resumed>)        = 0
[pid 12032] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12032] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12033] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12033] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12033] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12032] <... futex resumed>)        = 0
[pid 12032] exit_group(0)               = ?
[pid 12033] <... futex resumed>)        = ?
[pid 12033] +++ exited with 0 +++
[pid 12032] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12032, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12034
./strace-static-x86_64: Process 12034 attached
[pid 12034] set_robust_list(0x5555874576a0, 24) = 0
[pid 12034] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12034] setpgid(0, 0)               = 0
[pid 12034] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12034] write(3, "1000", 4)         = 4
[pid 12034] close(3)                    = 0
[pid 12034] write(1, "executing program\n", 18) = 18
[pid 12034] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
executing program
[pid 12034] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12034] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12034] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12034] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12034] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12034] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12035 attached
 <unfinished ...>
[pid 12035] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12034] <... clone3 resumed> => {parent_tid=[12035]}, 88) = 12035
[pid 12035] <... set_robust_list resumed>) = 0
[pid 12035] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12035] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12034] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12034] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12035] <... futex resumed>)        = 0
[pid 12035] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12034] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12035] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12035] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12034] <... futex resumed>)        = 0
[pid 12034] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12034] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12035] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12035] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12034] <... futex resumed>)        = 0
[pid 12034] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12034] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12035] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12035] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12034] <... futex resumed>)        = 0
[pid 12034] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12034] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12035] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12035] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12034] <... futex resumed>)        = 0
[pid 12034] exit_group(0)               = ?
[pid 12035] +++ exited with 0 +++
[pid 12034] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12034, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12036 attached
, child_tidptr=0x555587457690) = 12036
[pid 12036] set_robust_list(0x5555874576a0, 24) = 0
[pid 12036] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12036] setpgid(0, 0)               = 0
[pid 12036] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12036] write(3, "1000", 4)         = 4
[pid 12036] close(3executing program
)                    = 0
[pid 12036] write(1, "executing program\n", 18) = 18
[pid 12036] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12036] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12036] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12036] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12036] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12036] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12036] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12037 attached
 => {parent_tid=[12037]}, 88) = 12037
[pid 12036] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12036] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12036] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12037] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12037] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12037] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12037] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12036] <... futex resumed>)        = 0
[pid 12036] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12036] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12037] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12037] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12036] <... futex resumed>)        = 0
[pid 12036] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12036] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12037] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12037] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12036] <... futex resumed>)        = 0
[pid 12036] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12036] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12037] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12037] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12036] <... futex resumed>)        = 0
[pid 12036] exit_group(0)               = ?
[pid 12037] +++ exited with 0 +++
[pid 12036] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12036, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12038
./strace-static-x86_64: Process 12038 attached
[pid 12038] set_robust_list(0x5555874576a0, 24) = 0
[pid 12038] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12038] setpgid(0, 0)               = 0
[pid 12038] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12038] write(3, "1000", 4)         = 4
[pid 12038] close(3)                    = 0
[pid 12038] write(1, "executing program\n", 18executing program
) = 18
[pid 12038] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12038] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12038] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12038] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12038] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12038] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12038] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12039 attached
 => {parent_tid=[12039]}, 88) = 12039
[pid 12039] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12038] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12039] <... set_robust_list resumed>) = 0
[pid 12038] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12039] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12038] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12039] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12038] <... futex resumed>)        = 0
[pid 12039] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12038] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12039] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12039] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12039] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12038] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12038] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12039] <... futex resumed>)        = 0
[pid 12038] <... futex resumed>)        = 1
[pid 12039] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12038] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12039] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12039] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12038] <... futex resumed>)        = 0
[pid 12039] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12038] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12039] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12038] <... futex resumed>)        = 0
[pid 12039] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12038] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12039] <... futex resumed>)        = 0
[pid 12038] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12039] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12038] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12039] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12038] <... futex resumed>)        = 0
[pid 12039] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12038] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12039] <... futex resumed>)        = 0
[pid 12038] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12039] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12038] exit_group(0 <unfinished ...>
[pid 12039] <... futex resumed>)        = ?
[pid 12038] <... exit_group resumed>)   = ?
[pid 12039] +++ exited with 0 +++
[pid 12038] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12038, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12040
./strace-static-x86_64: Process 12040 attached
[pid 12040] set_robust_list(0x5555874576a0, 24) = 0
[pid 12040] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12040] setpgid(0, 0)               = 0
[pid 12040] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12040] write(3, "1000", 4)         = 4
[pid 12040] close(3executing program
)                    = 0
[pid 12040] write(1, "executing program\n", 18) = 18
[pid 12040] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12040] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12040] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12040] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12040] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12040] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12040] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12041 attached
 <unfinished ...>
[pid 12041] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12040] <... clone3 resumed> => {parent_tid=[12041]}, 88) = 12041
[pid 12041] <... set_robust_list resumed>) = 0
[pid 12041] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12041] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12040] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12040] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12041] <... futex resumed>)        = 0
[pid 12040] <... futex resumed>)        = 1
[pid 12041] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12041] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12041] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12040] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12040] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12041] <... futex resumed>)        = 0
[pid 12040] <... futex resumed>)        = 1
[pid 12041] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12040] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12041] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12041] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12040] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12040] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12041] <... futex resumed>)        = 0
[pid 12040] <... futex resumed>)        = 1
[pid 12041] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12041] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12041] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12040] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12040] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12041] <... futex resumed>)        = 0
[pid 12040] <... futex resumed>)        = 1
[pid 12041] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12040] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12041] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12041] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12040] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12041] <... futex resumed>)        = 0
[pid 12040] exit_group(0)               = ?
[pid 12041] +++ exited with 0 +++
[pid 12040] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12040, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12042
./strace-static-x86_64: Process 12042 attached
[pid 12042] set_robust_list(0x5555874576a0, 24) = 0
[pid 12042] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12042] setpgid(0, 0)               = 0
[pid 12042] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12042] write(3, "1000", 4)         = 4
[pid 12042] close(3)                    = 0
[pid 12042] write(1, "executing program\n", 18executing program
) = 18
[pid 12042] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12042] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12042] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12042] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12042] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12042] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12042] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12043 attached
 => {parent_tid=[12043]}, 88) = 12043
[pid 12043] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12043] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12043] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12042] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12042] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12043] <... futex resumed>)        = 0
[pid 12043] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12043] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12043] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12042] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12042] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12043] <... futex resumed>)        = 0
[pid 12043] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12043] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12043] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12042] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12042] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12043] <... futex resumed>)        = 0
[pid 12043] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12043] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12043] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12042] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12042] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12043] <... futex resumed>)        = 0
[pid 12043] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12042] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12043] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12043] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12043] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12042] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12042] exit_group(0)               = ?
[pid 12043] <... futex resumed>)        = ?
[pid 12043] +++ exited with 0 +++
[pid 12042] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12042, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12044
./strace-static-x86_64: Process 12044 attached
[pid 12044] set_robust_list(0x5555874576a0, 24) = 0
[pid 12044] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12044] setpgid(0, 0)               = 0
[pid 12044] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12044] write(3, "1000", 4)         = 4
[pid 12044] close(3executing program
)                    = 0
[pid 12044] write(1, "executing program\n", 18) = 18
[pid 12044] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12044] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12044] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12044] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12044] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12044] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12044] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12045 attached
 <unfinished ...>
[pid 12045] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12044] <... clone3 resumed> => {parent_tid=[12045]}, 88) = 12045
[pid 12044] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12044] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12045] <... set_robust_list resumed>) = 0
[pid 12044] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12045] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12045] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12045] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12044] <... futex resumed>)        = 0
[pid 12044] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12044] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12045] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12045] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12044] <... futex resumed>)        = 0
[pid 12044] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12044] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12045] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12045] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12044] <... futex resumed>)        = 0
[pid 12044] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12044] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12045] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12045] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12044] <... futex resumed>)        = 0
[pid 12044] exit_group(0)               = ?
[pid 12045] +++ exited with 0 +++
[pid 12044] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12044, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12046 attached
, child_tidptr=0x555587457690) = 12046
[pid 12046] set_robust_list(0x5555874576a0, 24) = 0
[pid 12046] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12046] setpgid(0, 0)               = 0
[pid 12046] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12046] write(3, "1000", 4executing program
)         = 4
[pid 12046] close(3)                    = 0
[pid 12046] write(1, "executing program\n", 18) = 18
[pid 12046] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12046] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12046] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12046] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12046] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12046] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12046] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12047]}, 88) = 12047
[pid 12046] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12046] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12046] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12047 attached
 <unfinished ...>
[pid 12047] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12047] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12047] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12047] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12046] <... futex resumed>)        = 0
[pid 12046] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12046] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12047] <... futex resumed>)        = 1
[pid 12047] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12047] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12046] <... futex resumed>)        = 0
[pid 12046] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12046] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12047] <... futex resumed>)        = 1
[pid 12047] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12047] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12046] <... futex resumed>)        = 0
[pid 12046] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12046] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12047] <... futex resumed>)        = 1
[pid 12047] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12047] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12046] <... futex resumed>)        = 0
[pid 12046] exit_group(0)               = ?
[pid 12047] <... futex resumed>)        = ?
[pid 12047] +++ exited with 0 +++
[pid 12046] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12046, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12048
./strace-static-x86_64: Process 12048 attached
[pid 12048] set_robust_list(0x5555874576a0, 24) = 0
[pid 12048] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12048] setpgid(0, 0)               = 0
[pid 12048] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12048] write(3, "1000", 4)         = 4
[pid 12048] close(3)                    = 0
[pid 12048] write(1, "executing program\n", 18executing program
) = 18
[pid 12048] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12048] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12048] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12048] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12048] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12048] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12048] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12049 attached
 => {parent_tid=[12049]}, 88) = 12049
[pid 12049] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12048] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12049] <... set_robust_list resumed>) = 0
[pid 12048] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12049] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12048] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12049] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12048] <... futex resumed>)        = 0
[pid 12049] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12048] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12049] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12049] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12048] <... futex resumed>)        = 0
[pid 12048] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12048] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12049] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12049] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12048] <... futex resumed>)        = 0
[pid 12049] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12048] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12048] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12049] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12049] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12048] <... futex resumed>)        = 0
[pid 12048] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12048] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12049] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12049] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12048] <... futex resumed>)        = 0
[pid 12048] exit_group(0)               = ?
[pid 12049] +++ exited with 0 +++
[pid 12048] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12048, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12050 attached
, child_tidptr=0x555587457690) = 12050
[pid 12050] set_robust_list(0x5555874576a0, 24) = 0
[pid 12050] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12050] setpgid(0, 0)               = 0
[pid 12050] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12050] write(3, "1000", 4)         = 4
[pid 12050] close(3)                    = 0
executing program
[pid 12050] write(1, "executing program\n", 18) = 18
[pid 12050] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12050] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12050] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12050] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12050] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12050] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12050] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12051]}, 88) = 12051
[pid 12050] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12050] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12050] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12051 attached
 <unfinished ...>
[pid 12051] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12051] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12051] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12051] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12050] <... futex resumed>)        = 0
[pid 12050] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12050] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12051] <... futex resumed>)        = 1
[pid 12051] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12051] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12050] <... futex resumed>)        = 0
[pid 12050] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12050] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12051] <... futex resumed>)        = 1
[pid 12051] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12051] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12050] <... futex resumed>)        = 0
[pid 12050] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12050] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12051] <... futex resumed>)        = 1
[pid 12051] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12051] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12050] <... futex resumed>)        = 0
[pid 12050] exit_group(0)               = ?
[pid 12051] <... futex resumed>)        = ?
[pid 12051] +++ exited with 0 +++
[pid 12050] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12050, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12052
./strace-static-x86_64: Process 12052 attached
[pid 12052] set_robust_list(0x5555874576a0, 24) = 0
[pid 12052] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12052] setpgid(0, 0)               = 0
[pid 12052] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12052] write(3, "1000", 4)         = 4
[pid 12052] close(3executing program
)                    = 0
[pid 12052] write(1, "executing program\n", 18) = 18
[pid 12052] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12052] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12052] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12052] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12052] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12052] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12052] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12053]}, 88) = 12053
./strace-static-x86_64: Process 12053 attached
[pid 12052] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12052] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12052] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12053] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12053] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12053] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12053] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12052] <... futex resumed>)        = 0
[pid 12052] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12052] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12053] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12053] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12052] <... futex resumed>)        = 0
[pid 12052] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12052] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12053] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12053] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12052] <... futex resumed>)        = 0
[pid 12052] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12052] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12053] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12053] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12052] <... futex resumed>)        = 0
[pid 12053] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12052] exit_group(0)               = ?
[pid 12053] <... futex resumed>)        = ?
[pid 12053] +++ exited with 0 +++
[pid 12052] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12052, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12054 attached
, child_tidptr=0x555587457690) = 12054
[pid 12054] set_robust_list(0x5555874576a0, 24) = 0
[pid 12054] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12054] setpgid(0, 0)               = 0
[pid 12054] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12054] write(3, "1000", 4)         = 4
[pid 12054] close(3)                    = 0
executing program
[pid 12054] write(1, "executing program\n", 18) = 18
[pid 12054] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12054] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12054] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12054] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12054] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12054] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12054] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12055 attached
 => {parent_tid=[12055]}, 88) = 12055
[pid 12054] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12054] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12054] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12055] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12055] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12055] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12055] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12054] <... futex resumed>)        = 0
[pid 12054] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12054] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12055] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12055] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12054] <... futex resumed>)        = 0
[pid 12054] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12054] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12055] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12055] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12054] <... futex resumed>)        = 0
[pid 12054] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12054] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12055] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12055] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12054] <... futex resumed>)        = 0
[pid 12054] exit_group(0)               = ?
[pid 12055] +++ exited with 0 +++
[pid 12054] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12054, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12056 attached
 <unfinished ...>
[pid 12056] set_robust_list(0x5555874576a0, 24) = 0
[pid 12056] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 12056
[pid 12056] <... prctl resumed>)        = 0
[pid 12056] setpgid(0, 0)               = 0
[pid 12056] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12056] write(3, "1000", 4)         = 4
[pid 12056] close(3)                    = 0
executing program
[pid 12056] write(1, "executing program\n", 18) = 18
[pid 12056] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12056] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12056] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12056] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12056] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12056] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12056] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12057]}, 88) = 12057
[pid 12056] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12056] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12056] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12057 attached
 <unfinished ...>
[pid 12057] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12057] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12057] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12057] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12056] <... futex resumed>)        = 0
[pid 12056] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12056] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12057] <... futex resumed>)        = 1
[pid 12057] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12057] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12056] <... futex resumed>)        = 0
[pid 12056] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12056] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12057] <... futex resumed>)        = 1
[pid 12057] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12057] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12056] <... futex resumed>)        = 0
[pid 12056] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12056] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12057] <... futex resumed>)        = 1
[pid 12057] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12057] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12056] <... futex resumed>)        = 0
[pid 12056] exit_group(0)               = ?
[pid 12057] <... futex resumed>)        = ?
[pid 12057] +++ exited with 0 +++
[pid 12056] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12056, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12058 attached
, child_tidptr=0x555587457690) = 12058
[pid 12058] set_robust_list(0x5555874576a0, 24) = 0
[pid 12058] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12058] setpgid(0, 0)               = 0
[pid 12058] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12058] write(3, "1000", 4)         = 4
[pid 12058] close(3)                    = 0
executing program
[pid 12058] write(1, "executing program\n", 18) = 18
[pid 12058] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12058] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12058] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12058] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12058] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12058] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12058] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12059 attached
 => {parent_tid=[12059]}, 88) = 12059
[pid 12059] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12059] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12059] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12058] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12058] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12059] <... futex resumed>)        = 0
[pid 12059] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12059] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12059] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12058] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12058] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12059] <... futex resumed>)        = 0
[pid 12059] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12059] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12059] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12058] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12058] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12059] <... futex resumed>)        = 0
[pid 12059] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12059] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12059] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12058] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12058] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12059] <... futex resumed>)        = 0
[pid 12058] <... futex resumed>)        = 1
[pid 12058] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12059] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12059] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12058] <... futex resumed>)        = 0
[pid 12059] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12058] exit_group(0)               = ?
[pid 12059] <... futex resumed>)        = ?
[pid 12059] +++ exited with 0 +++
[pid 12058] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12058, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12060
./strace-static-x86_64: Process 12060 attached
[pid 12060] set_robust_list(0x5555874576a0, 24) = 0
[pid 12060] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12060] setpgid(0, 0)               = 0
[pid 12060] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12060] write(3, "1000", 4)         = 4
[pid 12060] close(3)                    = 0
[pid 12060] write(1, "executing program\n", 18executing program
) = 18
[pid 12060] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12060] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12060] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12060] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12060] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12060] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12060] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12061 attached
 <unfinished ...>
[pid 12061] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12061] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12061] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12060] <... clone3 resumed> => {parent_tid=[12061]}, 88) = 12061
[pid 12060] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12060] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12061] <... futex resumed>)        = 0
[pid 12061] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12061] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12061] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12060] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12060] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12061] <... futex resumed>)        = 0
[pid 12061] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12060] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12061] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12060] <... futex resumed>)        = 0
[pid 12060] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12061] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12060] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12061] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12061] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12060] <... futex resumed>)        = 0
[pid 12060] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12060] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12061] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12061] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12060] <... futex resumed>)        = 0
[pid 12060] exit_group(0)               = ?
[pid 12061] +++ exited with 0 +++
[pid 12060] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12060, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12062
./strace-static-x86_64: Process 12062 attached
[pid 12062] set_robust_list(0x5555874576a0, 24) = 0
[pid 12062] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12062] setpgid(0, 0)               = 0
[pid 12062] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12062] write(3, "1000", 4)         = 4
[pid 12062] close(3)                    = 0
executing program
[pid 12062] write(1, "executing program\n", 18) = 18
[pid 12062] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12062] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12062] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12062] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12062] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12062] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12062] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12063 attached
 => {parent_tid=[12063]}, 88) = 12063
[pid 12063] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12062] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12063] <... set_robust_list resumed>) = 0
[pid 12062] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12063] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12062] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12063] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12062] <... futex resumed>)        = 0
[pid 12063] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12062] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12063] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12063] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12062] <... futex resumed>)        = 0
[pid 12062] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12062] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12063] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12063] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12062] <... futex resumed>)        = 0
[pid 12062] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12062] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12063] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12063] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12062] <... futex resumed>)        = 0
[pid 12062] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12062] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12063] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12063] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12062] <... futex resumed>)        = 0
[pid 12062] exit_group(0)               = ?
[pid 12063] +++ exited with 0 +++
[pid 12062] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12062, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12064
./strace-static-x86_64: Process 12064 attached
[pid 12064] set_robust_list(0x5555874576a0, 24) = 0
[pid 12064] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12064] setpgid(0, 0)               = 0
[pid 12064] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12064] write(3, "1000", 4)         = 4
[pid 12064] close(3)                    = 0
[pid 12064] write(1, "executing program\n", 18executing program
) = 18
[pid 12064] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12064] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12064] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12064] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12064] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12064] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12064] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12065]}, 88) = 12065
[pid 12064] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12064] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12064] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12065 attached
 <unfinished ...>
[pid 12065] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12065] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12065] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12065] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12064] <... futex resumed>)        = 0
[pid 12064] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12064] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12065] <... futex resumed>)        = 1
[pid 12065] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12065] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12064] <... futex resumed>)        = 0
[pid 12064] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12064] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12065] <... futex resumed>)        = 1
[pid 12065] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12065] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12064] <... futex resumed>)        = 0
[pid 12064] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12064] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12065] <... futex resumed>)        = 1
[pid 12065] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12065] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12064] <... futex resumed>)        = 0
[pid 12064] exit_group(0)               = ?
[pid 12065] <... futex resumed>)        = ?
[pid 12065] +++ exited with 0 +++
[pid 12064] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12064, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12066 attached
, child_tidptr=0x555587457690) = 12066
[pid 12066] set_robust_list(0x5555874576a0, 24) = 0
[pid 12066] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12066] setpgid(0, 0)               = 0
[pid 12066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12066] write(3, "1000", 4)         = 4
[pid 12066] close(3)                    = 0
[pid 12066] write(1, "executing program\n", 18executing program
) = 18
[pid 12066] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12066] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12066] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12066] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12066] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12066] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12066] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12067 attached
 => {parent_tid=[12067]}, 88) = 12067
[pid 12067] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12067] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12067] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12066] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12066] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12067] <... futex resumed>)        = 0
[pid 12067] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12067] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12067] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12066] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12066] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12067] <... futex resumed>)        = 0
[pid 12067] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12067] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12067] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12066] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12066] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12067] <... futex resumed>)        = 0
[pid 12067] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12067] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12067] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12066] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12066] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12067] <... futex resumed>)        = 0
[pid 12067] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12067] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12067] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12066] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12066] exit_group(0)               = ?
[pid 12067] <... futex resumed>)        = ?
[pid 12067] +++ exited with 0 +++
[pid 12066] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12066, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12068 attached
, child_tidptr=0x555587457690) = 12068
[pid 12068] set_robust_list(0x5555874576a0, 24) = 0
[pid 12068] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12068] setpgid(0, 0)               = 0
[pid 12068] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12068] write(3, "1000", 4)         = 4
[pid 12068] close(3)                    = 0
[pid 12068] write(1, "executing program\n", 18executing program
) = 18
[pid 12068] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12068] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12068] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12068] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12068] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12068] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12068] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12069 attached
 => {parent_tid=[12069]}, 88) = 12069
[pid 12069] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12069] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12069] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12068] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12068] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12069] <... futex resumed>)        = 0
[pid 12069] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12069] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12069] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12068] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12068] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12069] <... futex resumed>)        = 0
[pid 12069] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12069] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12069] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12068] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12068] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12069] <... futex resumed>)        = 0
[pid 12069] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12069] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12069] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12068] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12068] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12069] <... futex resumed>)        = 0
[pid 12069] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12069] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12069] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12068] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12068] exit_group(0)               = ?
[pid 12069] <... futex resumed>)        = ?
[pid 12069] +++ exited with 0 +++
[pid 12068] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12068, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12070 attached
, child_tidptr=0x555587457690) = 12070
[pid 12070] set_robust_list(0x5555874576a0, 24) = 0
[pid 12070] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12070] setpgid(0, 0)               = 0
[pid 12070] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12070] write(3, "1000", 4)         = 4
[pid 12070] close(3)                    = 0
[pid 12070] write(1, "executing program\n", 18executing program
) = 18
[pid 12070] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12070] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12070] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12070] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12070] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12070] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12070] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12071 attached
 <unfinished ...>
[pid 12071] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12071] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12070] <... clone3 resumed> => {parent_tid=[12071]}, 88) = 12071
[pid 12071] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12071] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12070] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12070] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12070] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12071] <... futex resumed>)        = 0
[pid 12071] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12071] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12070] <... futex resumed>)        = 0
[pid 12070] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12070] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12071] <... futex resumed>)        = 1
[pid 12071] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12071] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12070] <... futex resumed>)        = 0
[pid 12070] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12070] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12071] <... futex resumed>)        = 1
[pid 12071] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12071] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12070] <... futex resumed>)        = 0
[pid 12070] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12070] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12071] <... futex resumed>)        = 1
[pid 12071] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12071] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12070] <... futex resumed>)        = 0
[pid 12070] exit_group(0)               = ?
[pid 12071] +++ exited with 0 +++
[pid 12070] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12070, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12072 attached
, child_tidptr=0x555587457690) = 12072
[pid 12072] set_robust_list(0x5555874576a0, 24) = 0
[pid 12072] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12072] setpgid(0, 0)               = 0
[pid 12072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12072] write(3, "1000", 4)         = 4
[pid 12072] close(3)                    = 0
executing program
[pid 12072] write(1, "executing program\n", 18) = 18
[pid 12072] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12072] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12072] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12072] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12072] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12072] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12072] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12073]}, 88) = 12073
./strace-static-x86_64: Process 12073 attached
[pid 12072] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12072] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12072] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12073] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12073] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12073] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12073] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12072] <... futex resumed>)        = 0
[pid 12072] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12072] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12073] <... futex resumed>)        = 1
[pid 12073] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12073] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12072] <... futex resumed>)        = 0
[pid 12072] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12072] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12073] <... futex resumed>)        = 1
[pid 12073] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12073] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12072] <... futex resumed>)        = 0
[pid 12072] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12072] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12073] <... futex resumed>)        = 1
[pid 12073] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12073] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12072] <... futex resumed>)        = 0
[pid 12073] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12072] exit_group(0)               = ?
[pid 12073] <... futex resumed>)        = ?
[pid 12073] +++ exited with 0 +++
[pid 12072] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12072, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12074 attached
, child_tidptr=0x555587457690) = 12074
[pid 12074] set_robust_list(0x5555874576a0, 24) = 0
[pid 12074] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12074] setpgid(0, 0)               = 0
[pid 12074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12074] write(3, "1000", 4)         = 4
[pid 12074] close(3)                    = 0
[pid 12074] write(1, "executing program\n", 18executing program
) = 18
[pid 12074] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12074] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12074] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12074] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12074] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12074] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12074] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12075 attached
 => {parent_tid=[12075]}, 88) = 12075
[pid 12075] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12075] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12075] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12074] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12074] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12075] <... futex resumed>)        = 0
[pid 12075] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12074] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12075] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12075] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12075] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12074] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12074] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12075] <... futex resumed>)        = 0
[pid 12074] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12075] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12075] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12075] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12074] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12074] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12075] <... futex resumed>)        = 0
[pid 12075] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12075] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12075] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12074] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12074] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12075] <... futex resumed>)        = 0
[pid 12074] <... futex resumed>)        = 1
[pid 12074] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12075] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12075] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12075] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12074] <... futex resumed>)        = 0
[pid 12074] exit_group(0)               = ?
[pid 12075] <... futex resumed>)        = ?
[pid 12075] +++ exited with 0 +++
[pid 12074] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12074, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12076
./strace-static-x86_64: Process 12076 attached
[pid 12076] set_robust_list(0x5555874576a0, 24) = 0
[pid 12076] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12076] setpgid(0, 0)               = 0
[pid 12076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12076] write(3, "1000", 4)         = 4
[pid 12076] close(3)                    = 0
executing program
[pid 12076] write(1, "executing program\n", 18) = 18
[pid 12076] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12076] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12076] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12076] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12076] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12076] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12076] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12077 attached
 => {parent_tid=[12077]}, 88) = 12077
[pid 12076] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12076] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12076] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12077] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12077] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12077] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12077] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12076] <... futex resumed>)        = 0
[pid 12076] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12076] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12077] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12077] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12076] <... futex resumed>)        = 0
[pid 12076] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12076] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12077] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12077] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12076] <... futex resumed>)        = 0
[pid 12076] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12076] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12077] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12077] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12076] <... futex resumed>)        = 0
[pid 12076] exit_group(0)               = ?
[pid 12077] +++ exited with 0 +++
[pid 12076] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12076, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12078
./strace-static-x86_64: Process 12078 attached
[pid 12078] set_robust_list(0x5555874576a0, 24) = 0
[pid 12078] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12078] setpgid(0, 0)               = 0
[pid 12078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12078] write(3, "1000", 4)         = 4
[pid 12078] close(3)                    = 0
[pid 12078] write(1, "executing program\n", 18executing program
) = 18
[pid 12078] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12078] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12078] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12078] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12078] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12078] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12078] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12079 attached
 => {parent_tid=[12079]}, 88) = 12079
[pid 12078] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12078] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12078] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12079] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12079] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12079] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12079] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12078] <... futex resumed>)        = 0
[pid 12079] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12078] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12079] <... futex resumed>)        = 0
[pid 12079] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12078] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12079] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12079] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12078] <... futex resumed>)        = 0
[pid 12078] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12078] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12079] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12079] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12078] <... futex resumed>)        = 0
[pid 12078] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12078] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12079] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12079] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12078] <... futex resumed>)        = 0
[pid 12078] exit_group(0)               = ?
[pid 12079] +++ exited with 0 +++
[pid 12078] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12078, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12080 attached
 <unfinished ...>
[pid 12080] set_robust_list(0x5555874576a0, 24) = 0
[pid 12080] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 12080
[pid 12080] <... prctl resumed>)        = 0
[pid 12080] setpgid(0, 0)               = 0
[pid 12080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12080] write(3, "1000", 4)         = 4
[pid 12080] close(3)                    = 0
[pid 12080] write(1, "executing program\n", 18executing program
) = 18
[pid 12080] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12080] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12080] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12080] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12080] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12080] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12080] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12081 attached
 <unfinished ...>
[pid 12081] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12080] <... clone3 resumed> => {parent_tid=[12081]}, 88) = 12081
[pid 12081] <... set_robust_list resumed>) = 0
[pid 12080] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12081] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12080] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12081] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12080] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12081] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12080] <... futex resumed>)        = 0
[pid 12081] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12080] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12081] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12080] <... futex resumed>)        = 0
[pid 12081] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12080] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12081] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12080] <... futex resumed>)        = 0
[pid 12081] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12080] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12080] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12080] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12081] <... futex resumed>)        = 1
[pid 12080] <... futex resumed>)        = 0
[pid 12080] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12081] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12081] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12080] <... futex resumed>)        = 0
[pid 12080] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12080] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12081] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12081] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12080] <... futex resumed>)        = 0
[pid 12080] exit_group(0)               = ?
[pid 12081] +++ exited with 0 +++
[pid 12080] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12080, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12082
./strace-static-x86_64: Process 12082 attached
[pid 12082] set_robust_list(0x5555874576a0, 24) = 0
[pid 12082] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12082] setpgid(0, 0)               = 0
[pid 12082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12082] write(3, "1000", 4)         = 4
executing program
[pid 12082] close(3)                    = 0
[pid 12082] write(1, "executing program\n", 18) = 18
[pid 12082] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12082] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12082] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12082] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12082] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12082] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12082] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12083 attached
 <unfinished ...>
[pid 12083] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12082] <... clone3 resumed> => {parent_tid=[12083]}, 88) = 12083
[pid 12083] <... set_robust_list resumed>) = 0
[pid 12083] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12083] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12082] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12082] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12083] <... futex resumed>)        = 0
[pid 12082] <... futex resumed>)        = 1
[pid 12083] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12083] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12083] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12082] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12082] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12083] <... futex resumed>)        = 0
[pid 12082] <... futex resumed>)        = 1
[pid 12083] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12083] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12083] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12082] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12082] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12083] <... futex resumed>)        = 0
[pid 12082] <... futex resumed>)        = 1
[pid 12083] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12083] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12083] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12082] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12082] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12083] <... futex resumed>)        = 0
[pid 12082] <... futex resumed>)        = 1
[pid 12083] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12083] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12083] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12082] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12082] exit_group(0 <unfinished ...>
[pid 12083] <... futex resumed>)        = ?
[pid 12082] <... exit_group resumed>)   = ?
[pid 12083] +++ exited with 0 +++
[pid 12082] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12082, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12084 attached
, child_tidptr=0x555587457690) = 12084
[pid 12084] set_robust_list(0x5555874576a0, 24) = 0
[pid 12084] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12084] setpgid(0, 0)               = 0
[pid 12084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12084] write(3, "1000", 4)         = 4
[pid 12084] close(3)                    = 0
[pid 12084] write(1, "executing program\n", 18executing program
) = 18
[pid 12084] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12084] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12084] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12084] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12084] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12084] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12084] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12085 attached
 => {parent_tid=[12085]}, 88) = 12085
[pid 12084] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12084] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12084] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12085] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12085] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12085] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12085] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12084] <... futex resumed>)        = 0
[pid 12084] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12084] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12085] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12085] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12084] <... futex resumed>)        = 0
[pid 12084] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12085] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12084] <... futex resumed>)        = 0
[pid 12084] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12085] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12085] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12084] <... futex resumed>)        = 0
[pid 12084] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12084] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12085] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12085] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12084] <... futex resumed>)        = 0
[pid 12085] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12084] exit_group(0)               = ?
[pid 12085] <... futex resumed>)        = ?
[pid 12085] +++ exited with 0 +++
[pid 12084] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12084, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12086
./strace-static-x86_64: Process 12086 attached
[pid 12086] set_robust_list(0x5555874576a0, 24) = 0
[pid 12086] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12086] setpgid(0, 0)               = 0
[pid 12086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12086] write(3, "1000", 4)         = 4
[pid 12086] close(3)                    = 0
[pid 12086] write(1, "executing program\n", 18executing program
) = 18
[pid 12086] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12086] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12086] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12086] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12086] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12086] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12086] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12087 attached
 <unfinished ...>
[pid 12087] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12087] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12087] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12086] <... clone3 resumed> => {parent_tid=[12087]}, 88) = 12087
[pid 12086] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12086] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12087] <... futex resumed>)        = 0
[pid 12087] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12087] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12087] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12086] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12086] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12087] <... futex resumed>)        = 0
[pid 12087] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12087] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12087] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12086] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12086] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12087] <... futex resumed>)        = 0
[pid 12086] <... futex resumed>)        = 1
[pid 12087] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12086] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12087] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12087] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12087] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12086] <... futex resumed>)        = 0
[pid 12087] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12086] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12086] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12087] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12087] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12086] <... futex resumed>)        = 0
[pid 12087] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12086] exit_group(0)               = ?
[pid 12087] <... futex resumed>)        = ?
[pid 12087] +++ exited with 0 +++
[pid 12086] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12086, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12088
./strace-static-x86_64: Process 12088 attached
[pid 12088] set_robust_list(0x5555874576a0, 24) = 0
[pid 12088] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12088] setpgid(0, 0)               = 0
[pid 12088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12088] write(3, "1000", 4)         = 4
[pid 12088] close(3)                    = 0
[pid 12088] write(1, "executing program\n", 18executing program
) = 18
[pid 12088] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12088] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12088] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12088] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12088] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12088] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12088] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12089 attached
 <unfinished ...>
[pid 12089] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12089] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12089] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12088] <... clone3 resumed> => {parent_tid=[12089]}, 88) = 12089
[pid 12088] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12088] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12089] <... futex resumed>)        = 0
[pid 12089] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12089] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12089] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12088] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12088] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12089] <... futex resumed>)        = 0
[pid 12089] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12089] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12089] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12088] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12088] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12089] <... futex resumed>)        = 0
[pid 12088] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12089] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12089] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12089] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12088] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12088] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12089] <... futex resumed>)        = 0
[pid 12088] <... futex resumed>)        = 1
[pid 12088] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12089] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12089] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12088] <... futex resumed>)        = 0
[pid 12089] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12088] exit_group(0 <unfinished ...>
[pid 12089] <... futex resumed>)        = ?
[pid 12088] <... exit_group resumed>)   = ?
[pid 12089] +++ exited with 0 +++
[pid 12088] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12088, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12090
./strace-static-x86_64: Process 12090 attached
[pid 12090] set_robust_list(0x5555874576a0, 24) = 0
[pid 12090] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12090] setpgid(0, 0)               = 0
[pid 12090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12090] write(3, "1000", 4)         = 4
[pid 12090] close(3)                    = 0
[pid 12090] write(1, "executing program\n", 18executing program
) = 18
[pid 12090] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12090] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12090] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12090] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12090] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12090] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12090] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12091 attached
 <unfinished ...>
[pid 12091] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12090] <... clone3 resumed> => {parent_tid=[12091]}, 88) = 12091
[pid 12090] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12090] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12090] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12091] <... set_robust_list resumed>) = 0
[pid 12091] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12091] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12091] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12090] <... futex resumed>)        = 0
[pid 12090] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12090] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12091] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12091] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12090] <... futex resumed>)        = 0
[pid 12090] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12090] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12091] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12091] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12090] <... futex resumed>)        = 0
[pid 12090] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12090] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12091] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12091] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12090] <... futex resumed>)        = 0
[pid 12091] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12090] exit_group(0)               = ?
[pid 12091] <... futex resumed>)        = ?
[pid 12091] +++ exited with 0 +++
[pid 12090] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12090, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12092
./strace-static-x86_64: Process 12092 attached
[pid 12092] set_robust_list(0x5555874576a0, 24) = 0
[pid 12092] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12092] setpgid(0, 0)               = 0
[pid 12092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12092] write(3, "1000", 4)         = 4
[pid 12092] close(3)                    = 0
[pid 12092] write(1, "executing program\n", 18executing program
) = 18
[pid 12092] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12092] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12092] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12092] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12092] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12092] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12092] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12093 attached
 => {parent_tid=[12093]}, 88) = 12093
[pid 12093] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12093] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12092] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12093] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12093] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12092] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12092] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12093] <... futex resumed>)        = 0
[pid 12093] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12092] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12093] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12093] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12093] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12092] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12092] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12093] <... futex resumed>)        = 0
[pid 12093] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12093] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12093] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12092] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12092] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12093] <... futex resumed>)        = 0
[pid 12092] <... futex resumed>)        = 1
[pid 12093] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12092] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12093] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12093] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12092] <... futex resumed>)        = 0
[pid 12092] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12092] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12093] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12093] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12092] <... futex resumed>)        = 0
[pid 12093] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12092] exit_group(0)               = ?
[pid 12093] <... futex resumed>)        = ?
[pid 12093] +++ exited with 0 +++
[pid 12092] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12092, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12094 attached
, child_tidptr=0x555587457690) = 12094
[pid 12094] set_robust_list(0x5555874576a0, 24) = 0
[pid 12094] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12094] setpgid(0, 0)               = 0
[pid 12094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12094] write(3, "1000", 4)         = 4
[pid 12094] close(3)                    = 0
[pid 12094] write(1, "executing program\n", 18executing program
) = 18
[pid 12094] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12094] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12094] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12094] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12094] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12094] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12094] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12095 attached
 => {parent_tid=[12095]}, 88) = 12095
[pid 12095] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12094] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12095] <... set_robust_list resumed>) = 0
[pid 12095] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12095] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12094] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12094] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12095] <... futex resumed>)        = 0
[pid 12095] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12095] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12095] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12094] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12094] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12095] <... futex resumed>)        = 0
[pid 12095] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12095] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12095] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12094] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12094] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12095] <... futex resumed>)        = 0
[pid 12095] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12095] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12095] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12094] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12094] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12095] <... futex resumed>)        = 0
[pid 12095] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12095] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12095] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12094] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12094] exit_group(0)               = ?
[pid 12095] <... futex resumed>)        = ?
[pid 12095] +++ exited with 0 +++
[pid 12094] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12094, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12096
./strace-static-x86_64: Process 12096 attached
[pid 12096] set_robust_list(0x5555874576a0, 24) = 0
[pid 12096] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12096] setpgid(0, 0)               = 0
[pid 12096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12096] write(3, "1000", 4)         = 4
[pid 12096] close(3)                    = 0
[pid 12096] write(1, "executing program\n", 18executing program
) = 18
[pid 12096] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12096] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12096] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12096] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12096] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12096] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12096] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12097]}, 88) = 12097
[pid 12096] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12096] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12096] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12097 attached
 <unfinished ...>
[pid 12097] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12097] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12097] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12097] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12096] <... futex resumed>)        = 0
[pid 12096] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12096] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12097] <... futex resumed>)        = 1
[pid 12097] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12097] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12096] <... futex resumed>)        = 0
[pid 12096] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12096] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12097] <... futex resumed>)        = 1
[pid 12097] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12097] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12096] <... futex resumed>)        = 0
[pid 12096] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12096] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12097] <... futex resumed>)        = 1
[pid 12097] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12097] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12096] <... futex resumed>)        = 0
[pid 12096] exit_group(0)               = ?
[pid 12097] <... futex resumed>)        = ?
[pid 12097] +++ exited with 0 +++
[pid 12096] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12096, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12098 attached
, child_tidptr=0x555587457690) = 12098
[pid 12098] set_robust_list(0x5555874576a0, 24) = 0
[pid 12098] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12098] setpgid(0, 0)               = 0
[pid 12098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12098] write(3, "1000", 4)         = 4
[pid 12098] close(3)                    = 0
executing program
[pid 12098] write(1, "executing program\n", 18) = 18
[pid 12098] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12098] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12098] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12098] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12098] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12098] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12098] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12099 attached
 => {parent_tid=[12099]}, 88) = 12099
[pid 12099] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12099] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12099] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12098] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12098] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12099] <... futex resumed>)        = 0
[pid 12099] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12098] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12099] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12099] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12099] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12098] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12098] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12099] <... futex resumed>)        = 0
[pid 12099] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12099] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12099] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12098] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12098] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12099] <... futex resumed>)        = 0
[pid 12099] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12099] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12099] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12098] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12098] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12099] <... futex resumed>)        = 0
[pid 12099] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12099] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12099] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12098] <... futex resumed>)        = 1
[pid 12098] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12098] exit_group(0)               = ?
[pid 12099] <... futex resumed>)        = ?
[pid 12099] +++ exited with 0 +++
[pid 12098] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12098, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12100
./strace-static-x86_64: Process 12100 attached
[pid 12100] set_robust_list(0x5555874576a0, 24) = 0
[pid 12100] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12100] setpgid(0, 0)               = 0
[pid 12100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12100] write(3, "1000", 4)         = 4
[pid 12100] close(3executing program
)                    = 0
[pid 12100] write(1, "executing program\n", 18) = 18
[pid 12100] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12100] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12100] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12100] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12100] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12100] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12100] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12101 attached
 => {parent_tid=[12101]}, 88) = 12101
[pid 12101] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12101] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12101] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12100] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12100] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12101] <... futex resumed>)        = 0
[pid 12101] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12101] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12101] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12100] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12100] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12101] <... futex resumed>)        = 0
[pid 12101] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12101] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12101] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12100] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12100] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12101] <... futex resumed>)        = 0
[pid 12101] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12101] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12101] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12100] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12100] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12101] <... futex resumed>)        = 0
[pid 12101] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12101] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12101] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12100] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12100] exit_group(0)               = ?
[pid 12101] <... futex resumed>)        = ?
[pid 12101] +++ exited with 0 +++
[pid 12100] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12100, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12102
./strace-static-x86_64: Process 12102 attached
[pid 12102] set_robust_list(0x5555874576a0, 24) = 0
[pid 12102] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12102] setpgid(0, 0)               = 0
[pid 12102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12102] write(3, "1000", 4)         = 4
[pid 12102] close(3)                    = 0
[pid 12102] write(1, "executing program\n", 18executing program
) = 18
[pid 12102] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12102] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12102] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12102] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12102] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12102] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12102] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12103]}, 88) = 12103
[pid 12102] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12102] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12102] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12103 attached
 <unfinished ...>
[pid 12103] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12103] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12103] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12103] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12102] <... futex resumed>)        = 0
[pid 12102] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12102] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12103] <... futex resumed>)        = 1
[pid 12103] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12103] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12102] <... futex resumed>)        = 0
[pid 12102] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12102] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12103] <... futex resumed>)        = 1
[pid 12103] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12103] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12102] <... futex resumed>)        = 0
[pid 12102] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12102] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12103] <... futex resumed>)        = 1
[pid 12103] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12103] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12102] <... futex resumed>)        = 0
[pid 12102] exit_group(0)               = ?
[pid 12103] <... futex resumed>)        = ?
[pid 12103] +++ exited with 0 +++
[pid 12102] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12102, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12104
./strace-static-x86_64: Process 12104 attached
[pid 12104] set_robust_list(0x5555874576a0, 24) = 0
[pid 12104] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12104] setpgid(0, 0)               = 0
[pid 12104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12104] write(3, "1000", 4)         = 4
[pid 12104] close(3)                    = 0
executing program
[pid 12104] write(1, "executing program\n", 18) = 18
[pid 12104] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12104] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12104] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12104] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12104] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12104] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12104] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12105]}, 88) = 12105
[pid 12104] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12104] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12104] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12105 attached
 <unfinished ...>
[pid 12105] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12105] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12105] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12105] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12104] <... futex resumed>)        = 0
[pid 12105] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12104] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12105] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12104] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12105] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12104] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12105] <... futex resumed>)        = 0
[pid 12104] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12105] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12104] <... futex resumed>)        = 0
[pid 12104] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12105] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12105] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12104] <... futex resumed>)        = 0
[pid 12105] <... futex resumed>)        = 1
[pid 12104] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12104] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12105] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12105] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12104] <... futex resumed>)        = 0
[pid 12105] <... futex resumed>)        = 1
[pid 12104] exit_group(0 <unfinished ...>
[pid 12105] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12104] <... exit_group resumed>)   = ?
[pid 12105] <... futex resumed>)        = ?
[pid 12105] +++ exited with 0 +++
[pid 12104] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12104, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12106
./strace-static-x86_64: Process 12106 attached
[pid 12106] set_robust_list(0x5555874576a0, 24) = 0
[pid 12106] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12106] setpgid(0, 0executing program
)               = 0
[pid 12106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12106] write(3, "1000", 4)         = 4
[pid 12106] close(3)                    = 0
[pid 12106] write(1, "executing program\n", 18) = 18
[pid 12106] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12106] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12106] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12106] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12106] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12106] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12106] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12107 attached
 => {parent_tid=[12107]}, 88) = 12107
[pid 12107] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12107] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12107] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12106] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12106] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12107] <... futex resumed>)        = 0
[pid 12107] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12107] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12107] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12106] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12106] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12107] <... futex resumed>)        = 0
[pid 12107] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12107] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12107] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12106] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12106] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12107] <... futex resumed>)        = 0
[pid 12107] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12107] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12107] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12106] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12106] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12107] <... futex resumed>)        = 0
[pid 12107] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12107] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12107] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12106] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12106] exit_group(0)               = ?
[pid 12107] <... futex resumed>)        = ?
[pid 12107] +++ exited with 0 +++
[pid 12106] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12106, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12108
./strace-static-x86_64: Process 12108 attached
[pid 12108] set_robust_list(0x5555874576a0, 24) = 0
[pid 12108] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12108] setpgid(0, 0)               = 0
[pid 12108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12108] write(3, "1000", 4)         = 4
[pid 12108] close(3)                    = 0
[pid 12108] write(1, "executing program\n", 18executing program
) = 18
[pid 12108] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12108] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12108] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12108] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12108] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12108] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12108] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12109 attached
 => {parent_tid=[12109]}, 88) = 12109
[pid 12109] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12109] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12109] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12108] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12108] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12109] <... futex resumed>)        = 0
[pid 12109] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12109] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12109] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12108] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12108] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12109] <... futex resumed>)        = 0
[pid 12109] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12109] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12109] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12108] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12108] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12109] <... futex resumed>)        = 0
[pid 12109] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12109] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12109] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12108] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12108] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12109] <... futex resumed>)        = 0
[pid 12109] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12108] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12109] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12109] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12108] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12108] exit_group(0)               = ?
[pid 12109] <... futex resumed>)        = ?
[pid 12109] +++ exited with 0 +++
[pid 12108] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12108, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12110 attached
, child_tidptr=0x555587457690) = 12110
[pid 12110] set_robust_list(0x5555874576a0, 24) = 0
[pid 12110] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12110] setpgid(0, 0)               = 0
[pid 12110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12110] write(3, "1000", 4)         = 4
[pid 12110] close(3)                    = 0
[pid 12110] write(1, "executing program\n", 18executing program
) = 18
[pid 12110] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12110] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12110] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12110] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12110] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12110] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12110] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12111 attached
 => {parent_tid=[12111]}, 88) = 12111
[pid 12111] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12111] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12111] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12110] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12110] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12110] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12111] <... futex resumed>)        = 0
[pid 12111] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12111] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12110] <... futex resumed>)        = 0
[pid 12110] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12110] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12111] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12111] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12110] <... futex resumed>)        = 0
[pid 12110] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12110] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12111] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12111] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12110] <... futex resumed>)        = 0
[pid 12110] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12110] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12111] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12111] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12110] <... futex resumed>)        = 0
[pid 12110] exit_group(0)               = ?
[pid 12111] +++ exited with 0 +++
[pid 12110] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12110, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12112
./strace-static-x86_64: Process 12112 attached
[pid 12112] set_robust_list(0x5555874576a0, 24) = 0
[pid 12112] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12112] setpgid(0, 0)               = 0
[pid 12112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12112] write(3, "1000", 4)         = 4
[pid 12112] close(3)                    = 0
[pid 12112] write(1, "executing program\n", 18executing program
) = 18
[pid 12112] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12112] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12112] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12112] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12112] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12112] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12112] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12113 attached
 => {parent_tid=[12113]}, 88) = 12113
[pid 12113] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12113] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12113] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12112] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12112] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12113] <... futex resumed>)        = 0
[pid 12113] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12113] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12113] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12112] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12112] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12113] <... futex resumed>)        = 0
[pid 12113] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12113] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12113] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12112] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12112] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12113] <... futex resumed>)        = 0
[pid 12113] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12113] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12113] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12112] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12112] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12113] <... futex resumed>)        = 0
[pid 12113] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12112] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12113] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12113] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12112] <... futex resumed>)        = 0
[pid 12112] exit_group(0)               = ?
[pid 12113] +++ exited with 0 +++
[pid 12112] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12112, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12114 attached
, child_tidptr=0x555587457690) = 12114
[pid 12114] set_robust_list(0x5555874576a0, 24) = 0
[pid 12114] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12114] setpgid(0, 0)               = 0
[pid 12114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12114] write(3, "1000", 4)         = 4
[pid 12114] close(3)                    = 0
executing program
[pid 12114] write(1, "executing program\n", 18) = 18
[pid 12114] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12114] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12114] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12114] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12114] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12114] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12114] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12115 attached
 => {parent_tid=[12115]}, 88) = 12115
[pid 12115] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12114] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12115] <... set_robust_list resumed>) = 0
[pid 12114] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12115] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12114] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12115] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12114] <... futex resumed>)        = 0
[pid 12115] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12114] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12115] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12115] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12114] <... futex resumed>)        = 0
[pid 12114] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12114] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12115] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12115] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12114] <... futex resumed>)        = 0
[pid 12114] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12114] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12115] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12115] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12114] <... futex resumed>)        = 0
[pid 12114] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12114] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12115] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12115] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12114] <... futex resumed>)        = 0
[pid 12115] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12114] exit_group(0)               = ?
[pid 12115] <... futex resumed>)        = ?
[pid 12115] +++ exited with 0 +++
[pid 12114] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12114, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12116 attached
, child_tidptr=0x555587457690) = 12116
[pid 12116] set_robust_list(0x5555874576a0, 24) = 0
[pid 12116] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12116] setpgid(0, 0)               = 0
[pid 12116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12116] write(3, "1000", 4)         = 4
[pid 12116] close(3)                    = 0
[pid 12116] write(1, "executing program\n", 18executing program
) = 18
[pid 12116] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12116] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12116] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12116] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12116] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12116] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12116] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12117]}, 88) = 12117
[pid 12116] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12116] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12116] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12117 attached
 <unfinished ...>
[pid 12117] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12117] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12117] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12117] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12116] <... futex resumed>)        = 0
[pid 12116] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12116] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12117] <... futex resumed>)        = 1
[pid 12117] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12117] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12116] <... futex resumed>)        = 0
[pid 12116] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12116] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12117] <... futex resumed>)        = 1
[pid 12117] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12117] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12116] <... futex resumed>)        = 0
[pid 12116] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12116] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12117] <... futex resumed>)        = 1
[pid 12117] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12117] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12116] <... futex resumed>)        = 0
[pid 12116] exit_group(0)               = ?
[pid 12117] <... futex resumed>)        = ?
[pid 12117] +++ exited with 0 +++
[pid 12116] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12116, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12118 attached
, child_tidptr=0x555587457690) = 12118
[pid 12118] set_robust_list(0x5555874576a0, 24) = 0
[pid 12118] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12118] setpgid(0, 0)               = 0
[pid 12118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12118] write(3, "1000", 4)         = 4
[pid 12118] close(3)                    = 0
[pid 12118] write(1, "executing program\n", 18executing program
) = 18
[pid 12118] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12118] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12118] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12118] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12118] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12118] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12118] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12119]}, 88) = 12119
./strace-static-x86_64: Process 12119 attached
[pid 12119] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12119] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12119] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12118] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12118] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12119] <... futex resumed>)        = 0
[pid 12119] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12118] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12119] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12119] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12118] <... futex resumed>)        = 0
[pid 12118] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12118] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12119] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12119] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12118] <... futex resumed>)        = 0
[pid 12118] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12118] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12119] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12119] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12118] <... futex resumed>)        = 0
[pid 12118] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12118] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12119] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12119] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12118] <... futex resumed>)        = 0
[pid 12118] exit_group(0)               = ?
[pid 12119] +++ exited with 0 +++
[pid 12118] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12118, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12120 attached
, child_tidptr=0x555587457690) = 12120
[pid 12120] set_robust_list(0x5555874576a0, 24) = 0
[pid 12120] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12120] setpgid(0, 0)               = 0
[pid 12120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12120] write(3, "1000", 4)         = 4
[pid 12120] close(3)                    = 0
[pid 12120] write(1, "executing program\n", 18executing program
) = 18
[pid 12120] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12120] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12120] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12120] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12120] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12120] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12120] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12121]}, 88) = 12121
[pid 12120] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12120] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12120] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12121 attached
 <unfinished ...>
[pid 12121] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12121] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12121] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12121] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12120] <... futex resumed>)        = 0
[pid 12120] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12120] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12121] <... futex resumed>)        = 1
[pid 12121] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12121] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12120] <... futex resumed>)        = 0
[pid 12120] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12120] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12121] <... futex resumed>)        = 1
[pid 12121] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12121] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12120] <... futex resumed>)        = 0
[pid 12120] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12120] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12121] <... futex resumed>)        = 1
[pid 12121] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12121] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12120] <... futex resumed>)        = 0
[pid 12120] exit_group(0)               = ?
[pid 12121] <... futex resumed>)        = ?
[pid 12121] +++ exited with 0 +++
[pid 12120] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12120, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12122
./strace-static-x86_64: Process 12122 attached
[pid 12122] set_robust_list(0x5555874576a0, 24) = 0
[pid 12122] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12122] setpgid(0, 0)               = 0
[pid 12122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12122] write(3, "1000", 4)         = 4
[pid 12122] close(3)                    = 0
[pid 12122] write(1, "executing program\n", 18executing program
) = 18
[pid 12122] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12122] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12122] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12122] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12122] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12122] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12122] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12123]}, 88) = 12123
[pid 12122] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12122] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12122] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12123 attached
 <unfinished ...>
[pid 12123] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12123] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12123] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12123] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12122] <... futex resumed>)        = 0
[pid 12122] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12122] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12123] <... futex resumed>)        = 1
[pid 12123] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12123] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12122] <... futex resumed>)        = 0
[pid 12122] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12122] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12123] <... futex resumed>)        = 1
[pid 12123] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12123] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12122] <... futex resumed>)        = 0
[pid 12122] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12122] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12123] <... futex resumed>)        = 1
[pid 12123] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12123] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12122] <... futex resumed>)        = 0
[pid 12122] exit_group(0 <unfinished ...>
[pid 12123] <... futex resumed>)        = 1
[pid 12122] <... exit_group resumed>)   = ?
[pid 12123] +++ exited with 0 +++
[pid 12122] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12122, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12124
./strace-static-x86_64: Process 12124 attached
[pid 12124] set_robust_list(0x5555874576a0, 24) = 0
[pid 12124] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12124] setpgid(0, 0)               = 0
[pid 12124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12124] write(3, "1000", 4)         = 4
[pid 12124] close(3)                    = 0
executing program
[pid 12124] write(1, "executing program\n", 18) = 18
[pid 12124] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12124] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12124] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12124] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12124] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12124] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12124] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12125]}, 88) = 12125
./strace-static-x86_64: Process 12125 attached
[pid 12124] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12124] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12124] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12125] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12125] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12125] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12125] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12125] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12124] <... futex resumed>)        = 0
[pid 12124] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12124] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12125] <... futex resumed>)        = 0
[pid 12125] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12125] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12124] <... futex resumed>)        = 0
[pid 12124] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12124] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12125] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12125] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12124] <... futex resumed>)        = 0
[pid 12124] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12124] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12125] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12125] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12125] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12124] <... futex resumed>)        = 0
[pid 12124] exit_group(0)               = ?
[pid 12125] <... futex resumed>)        = ?
[pid 12125] +++ exited with 0 +++
[pid 12124] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12124, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12126 attached
, child_tidptr=0x555587457690) = 12126
[pid 12126] set_robust_list(0x5555874576a0, 24) = 0
[pid 12126] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12126] setpgid(0, 0)               = 0
[pid 12126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12126] write(3, "1000", 4)         = 4
[pid 12126] close(3)                    = 0
[pid 12126] write(1, "executing program\n", 18executing program
) = 18
[pid 12126] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12126] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12126] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12126] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12126] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12126] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12126] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12127 attached
 => {parent_tid=[12127]}, 88) = 12127
[pid 12127] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12127] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12127] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12126] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12126] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12127] <... futex resumed>)        = 0
[pid 12127] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12127] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12127] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12126] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12126] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12127] <... futex resumed>)        = 0
[pid 12127] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12127] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12127] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12126] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12126] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12127] <... futex resumed>)        = 0
[pid 12127] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12127] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12127] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12126] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12126] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12127] <... futex resumed>)        = 0
[pid 12127] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12126] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12127] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12127] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12127] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12126] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12126] exit_group(0)               = ?
[pid 12127] <... futex resumed>)        = ?
[pid 12127] +++ exited with 0 +++
[pid 12126] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12126, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12128
./strace-static-x86_64: Process 12128 attached
[pid 12128] set_robust_list(0x5555874576a0, 24) = 0
[pid 12128] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12128] setpgid(0, 0)               = 0
[pid 12128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12128] write(3, "1000", 4)         = 4
executing program
[pid 12128] close(3)                    = 0
[pid 12128] write(1, "executing program\n", 18) = 18
[pid 12128] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12128] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12128] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12128] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12128] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12128] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12128] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12129]}, 88) = 12129
./strace-static-x86_64: Process 12129 attached
[pid 12128] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12128] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12128] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12129] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12129] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12129] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12129] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12128] <... futex resumed>)        = 0
[pid 12128] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12128] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12129] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12129] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12128] <... futex resumed>)        = 0
[pid 12128] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12128] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12129] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12129] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12128] <... futex resumed>)        = 0
[pid 12128] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12128] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12129] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12129] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12128] <... futex resumed>)        = 0
[pid 12128] exit_group(0)               = ?
[pid 12129] +++ exited with 0 +++
[pid 12128] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12128, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12130
./strace-static-x86_64: Process 12130 attached
[pid 12130] set_robust_list(0x5555874576a0, 24) = 0
[pid 12130] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12130] setpgid(0, 0)               = 0
[pid 12130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12130] write(3, "1000", 4)         = 4
executing program
[pid 12130] close(3)                    = 0
[pid 12130] write(1, "executing program\n", 18) = 18
[pid 12130] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12130] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12130] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12130] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12130] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12130] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12130] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12131]}, 88) = 12131
./strace-static-x86_64: Process 12131 attached
[pid 12131] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12131] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12131] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12130] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12130] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12131] <... futex resumed>)        = 0
[pid 12131] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12130] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12131] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12131] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12130] <... futex resumed>)        = 0
[pid 12130] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12131] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12130] <... futex resumed>)        = 0
[pid 12131] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12130] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12131] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12130] <... futex resumed>)        = 0
[pid 12130] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12130] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12131] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12131] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12130] <... futex resumed>)        = 0
[pid 12130] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12130] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12131] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12131] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12130] <... futex resumed>)        = 0
[pid 12130] exit_group(0)               = ?
[pid 12131] +++ exited with 0 +++
[pid 12130] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12130, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12132
./strace-static-x86_64: Process 12132 attached
[pid 12132] set_robust_list(0x5555874576a0, 24) = 0
[pid 12132] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12132] setpgid(0, 0)               = 0
[pid 12132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12132] write(3, "1000", 4)         = 4
[pid 12132] close(3)                    = 0
[pid 12132] write(1, "executing program\n", 18executing program
) = 18
[pid 12132] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12132] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12132] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12132] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12132] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12132] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12132] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12133]}, 88) = 12133
[pid 12132] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12132] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12132] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12133 attached
 <unfinished ...>
[pid 12133] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12133] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12133] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12133] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12133] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12132] <... futex resumed>)        = 0
[pid 12132] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12133] <... futex resumed>)        = 0
[pid 12132] <... futex resumed>)        = 1
[pid 12133] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12132] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12133] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12133] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12132] <... futex resumed>)        = 0
[pid 12133] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12132] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12133] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12132] <... futex resumed>)        = 0
[pid 12133] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12132] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12133] <... futex resumed>)        = 0
[pid 12132] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12133] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12132] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12133] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12132] <... futex resumed>)        = 0
[pid 12133] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12132] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12133] <... futex resumed>)        = 0
[pid 12132] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12133] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12132] exit_group(0 <unfinished ...>
[pid 12133] <... futex resumed>)        = ?
[pid 12132] <... exit_group resumed>)   = ?
[pid 12133] +++ exited with 0 +++
[pid 12132] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12132, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12134
./strace-static-x86_64: Process 12134 attached
[pid 12134] set_robust_list(0x5555874576a0, 24) = 0
[pid 12134] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12134] setpgid(0, 0)               = 0
[pid 12134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12134] write(3, "1000", 4)         = 4
[pid 12134] close(3)                    = 0
[pid 12134] write(1, "executing program\n", 18executing program
) = 18
[pid 12134] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12134] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12134] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12134] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12134] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12134] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12134] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12135 attached
 <unfinished ...>
[pid 12135] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12135] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12135] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12134] <... clone3 resumed> => {parent_tid=[12135]}, 88) = 12135
[pid 12134] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12134] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12135] <... futex resumed>)        = 0
[pid 12135] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12135] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12135] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12134] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12134] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12135] <... futex resumed>)        = 0
[pid 12135] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12135] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12135] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12134] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12134] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12135] <... futex resumed>)        = 0
[pid 12135] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12135] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12135] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12134] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12134] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12135] <... futex resumed>)        = 0
[pid 12135] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12135] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12135] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12134] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12134] exit_group(0)               = ?
[pid 12135] <... futex resumed>)        = ?
[pid 12135] +++ exited with 0 +++
[pid 12134] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12134, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12136
./strace-static-x86_64: Process 12136 attached
[pid 12136] set_robust_list(0x5555874576a0, 24) = 0
[pid 12136] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12136] setpgid(0, 0)               = 0
[pid 12136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12136] write(3, "1000", 4)         = 4
[pid 12136] close(3)                    = 0
executing program
[pid 12136] write(1, "executing program\n", 18) = 18
[pid 12136] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12136] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12136] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12136] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12136] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12136] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12136] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12137]}, 88) = 12137
./strace-static-x86_64: Process 12137 attached
[pid 12136] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12137] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12137] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12137] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12136] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12136] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12137] <... futex resumed>)        = 0
[pid 12137] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12137] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12137] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12136] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12136] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12137] <... futex resumed>)        = 0
[pid 12137] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12137] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12137] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12136] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12136] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12137] <... futex resumed>)        = 0
[pid 12137] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12137] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12137] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12136] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12136] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12137] <... futex resumed>)        = 0
[pid 12137] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12137] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12137] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12136] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12136] exit_group(0)               = ?
[pid 12137] <... futex resumed>)        = ?
[pid 12137] +++ exited with 0 +++
[pid 12136] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12136, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12138
./strace-static-x86_64: Process 12138 attached
[pid 12138] set_robust_list(0x5555874576a0, 24) = 0
[pid 12138] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12138] setpgid(0, 0)               = 0
[pid 12138] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12138] write(3, "1000", 4)         = 4
[pid 12138] close(3)                    = 0
[pid 12138] write(1, "executing program\n", 18executing program
) = 18
[pid 12138] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12138] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12138] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12138] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12138] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12138] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12138] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12139 attached
 => {parent_tid=[12139]}, 88) = 12139
[pid 12139] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12138] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12139] <... set_robust_list resumed>) = 0
[pid 12139] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12138] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12139] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12138] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12139] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12138] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12139] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12139] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12138] <... futex resumed>)        = 0
[pid 12138] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12138] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12139] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12139] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12138] <... futex resumed>)        = 0
[pid 12138] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12138] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12139] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12139] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12138] <... futex resumed>)        = 0
[pid 12138] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12138] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12139] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12139] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12138] <... futex resumed>)        = 0
[pid 12138] exit_group(0 <unfinished ...>
[pid 12139] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12138] <... exit_group resumed>)   = ?
[pid 12139] <... futex resumed>)        = ?
[pid 12139] +++ exited with 0 +++
[pid 12138] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12138, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12140
./strace-static-x86_64: Process 12140 attached
[pid 12140] set_robust_list(0x5555874576a0, 24) = 0
[pid 12140] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12140] setpgid(0, 0)               = 0
[pid 12140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12140] write(3, "1000", 4)         = 4
[pid 12140] close(3)                    = 0
[pid 12140] write(1, "executing program\n", 18executing program
) = 18
[pid 12140] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12140] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12140] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12140] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12140] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12140] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12140] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12141 attached
 => {parent_tid=[12141]}, 88) = 12141
[pid 12140] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12140] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12140] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12141] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12141] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12141] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12141] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12140] <... futex resumed>)        = 0
[pid 12141] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12140] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12141] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12140] <... futex resumed>)        = 0
[pid 12141] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12140] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12141] <... futex resumed>)        = 0
[pid 12140] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12141] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12140] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12141] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12140] <... futex resumed>)        = 0
[pid 12141] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12140] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12141] <... futex resumed>)        = 0
[pid 12140] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12141] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12140] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12141] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12140] <... futex resumed>)        = 0
[pid 12141] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12140] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12141] <... futex resumed>)        = 0
[pid 12140] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12141] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12140] exit_group(0 <unfinished ...>
[pid 12141] <... futex resumed>)        = ?
[pid 12140] <... exit_group resumed>)   = ?
[pid 12141] +++ exited with 0 +++
[pid 12140] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12140, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12142
./strace-static-x86_64: Process 12142 attached
[pid 12142] set_robust_list(0x5555874576a0, 24) = 0
[pid 12142] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12142] setpgid(0, 0)               = 0
[pid 12142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12142] write(3, "1000", 4)         = 4
[pid 12142] close(3)                    = 0
[pid 12142] write(1, "executing program\n", 18executing program
) = 18
[pid 12142] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12142] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12142] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12142] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12142] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12142] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12142] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12143 attached
 => {parent_tid=[12143]}, 88) = 12143
[pid 12143] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12143] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12143] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12142] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12142] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12143] <... futex resumed>)        = 0
[pid 12143] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12143] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12143] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12142] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12142] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12143] <... futex resumed>)        = 0
[pid 12143] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12143] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12143] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12142] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12142] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12143] <... futex resumed>)        = 0
[pid 12143] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12142] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12143] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12143] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12142] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12142] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12143] <... futex resumed>)        = 0
[pid 12143] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12142] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12143] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12143] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12143] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12142] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12142] exit_group(0)               = ?
[pid 12143] <... futex resumed>)        = ?
[pid 12143] +++ exited with 0 +++
[pid 12142] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12142, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12144
./strace-static-x86_64: Process 12144 attached
[pid 12144] set_robust_list(0x5555874576a0, 24) = 0
[pid 12144] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12144] setpgid(0, 0)               = 0
[pid 12144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12144] write(3, "1000", 4)         = 4
[pid 12144] close(3)                    = 0
executing program
[pid 12144] write(1, "executing program\n", 18) = 18
[pid 12144] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12144] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12144] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12144] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12144] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12144] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12144] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12145 attached
 => {parent_tid=[12145]}, 88) = 12145
[pid 12144] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12144] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12144] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12145] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12145] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12145] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12145] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12144] <... futex resumed>)        = 0
[pid 12144] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12144] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12145] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12145] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12144] <... futex resumed>)        = 0
[pid 12144] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12144] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12145] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12145] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12144] <... futex resumed>)        = 0
[pid 12144] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12144] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12145] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12145] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12144] <... futex resumed>)        = 0
[pid 12144] exit_group(0 <unfinished ...>
[pid 12145] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12144] <... exit_group resumed>)   = ?
[pid 12145] <... futex resumed>)        = ?
[pid 12145] +++ exited with 0 +++
[pid 12144] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12144, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12146
./strace-static-x86_64: Process 12146 attached
[pid 12146] set_robust_list(0x5555874576a0, 24) = 0
[pid 12146] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12146] setpgid(0, 0)               = 0
[pid 12146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12146] write(3, "1000", 4)         = 4
[pid 12146] close(3)                    = 0
[pid 12146] write(1, "executing program\n", 18executing program
) = 18
[pid 12146] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12146] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12146] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12146] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12146] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12146] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12146] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12147]}, 88) = 12147
[pid 12146] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12146] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12146] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12147 attached
 <unfinished ...>
[pid 12147] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12147] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12147] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12147] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12146] <... futex resumed>)        = 0
[pid 12146] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12146] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12147] <... futex resumed>)        = 1
[pid 12147] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12147] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12146] <... futex resumed>)        = 0
[pid 12146] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12146] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12147] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12147] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12146] <... futex resumed>)        = 0
[pid 12146] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12146] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12147] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12147] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12146] <... futex resumed>)        = 0
[pid 12146] exit_group(0)               = ?
[pid 12147] +++ exited with 0 +++
[pid 12146] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12146, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12148
./strace-static-x86_64: Process 12148 attached
[pid 12148] set_robust_list(0x5555874576a0, 24) = 0
[pid 12148] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12148] setpgid(0, 0)               = 0
[pid 12148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12148] write(3, "1000", 4)         = 4
[pid 12148] close(3)                    = 0
[pid 12148] write(1, "executing program\n", 18executing program
) = 18
[pid 12148] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12148] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12148] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12148] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12148] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12148] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12148] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12149 attached
 => {parent_tid=[12149]}, 88) = 12149
[pid 12149] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12149] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12149] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12148] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12148] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12149] <... futex resumed>)        = 0
[pid 12149] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12149] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12149] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12148] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12148] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12149] <... futex resumed>)        = 0
[pid 12149] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12148] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12149] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12149] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12149] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12148] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12148] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12149] <... futex resumed>)        = 0
[pid 12149] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12149] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12149] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12148] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12148] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12149] <... futex resumed>)        = 0
[pid 12149] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12148] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12149] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12149] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12149] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12148] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12148] exit_group(0)               = ?
[pid 12149] <... futex resumed>)        = ?
[pid 12149] +++ exited with 0 +++
[pid 12148] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12148, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12150
./strace-static-x86_64: Process 12150 attached
[pid 12150] set_robust_list(0x5555874576a0, 24) = 0
[pid 12150] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12150] setpgid(0, 0)               = 0
[pid 12150] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12150] write(3, "1000", 4)         = 4
[pid 12150] close(3)                    = 0
executing program
[pid 12150] write(1, "executing program\n", 18) = 18
[pid 12150] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12150] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12150] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12150] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12150] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12150] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12150] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12151]}, 88) = 12151
[pid 12150] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12150] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12150] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12151 attached
 <unfinished ...>
[pid 12151] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12151] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12151] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12151] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12150] <... futex resumed>)        = 0
[pid 12150] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12150] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12151] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12151] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12150] <... futex resumed>)        = 0
[pid 12150] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12150] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12151] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12151] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12150] <... futex resumed>)        = 0
[pid 12150] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12150] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12151] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12151] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12150] <... futex resumed>)        = 0
[pid 12150] exit_group(0)               = ?
[pid 12151] +++ exited with 0 +++
[pid 12150] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12150, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12152
./strace-static-x86_64: Process 12152 attached
[pid 12152] set_robust_list(0x5555874576a0, 24) = 0
[pid 12152] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12152] setpgid(0, 0)               = 0
[pid 12152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12152] write(3, "1000", 4)         = 4
[pid 12152] close(3)                    = 0
[pid 12152] write(1, "executing program\n", 18executing program
) = 18
[pid 12152] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12152] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12152] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12152] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12152] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12152] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12152] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12153]}, 88) = 12153
[pid 12152] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12152] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 12153 attached
 <unfinished ...>
[pid 12153] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12153] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12153] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12152] <... futex resumed>)        = 0
[pid 12153] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12153] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12153] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12152] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12152] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12153] <... futex resumed>)        = 0
[pid 12153] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12152] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12153] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12153] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12152] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12152] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12153] <... futex resumed>)        = 0
[pid 12153] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12153] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12153] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12152] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12152] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12153] <... futex resumed>)        = 0
[pid 12153] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12152] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12153] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12153] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12152] <... futex resumed>)        = 0
[pid 12152] exit_group(0 <unfinished ...>
[pid 12153] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12152] <... exit_group resumed>)   = ?
[pid 12153] <... futex resumed>)        = ?
[pid 12153] +++ exited with 0 +++
[pid 12152] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12152, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12154
./strace-static-x86_64: Process 12154 attached
[pid 12154] set_robust_list(0x5555874576a0, 24) = 0
[pid 12154] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12154] setpgid(0, 0)               = 0
[pid 12154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12154] write(3, "1000", 4)         = 4
[pid 12154] close(3)                    = 0
executing program
[pid 12154] write(1, "executing program\n", 18) = 18
[pid 12154] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12154] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12154] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12154] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12154] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12154] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12154] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12155]}, 88) = 12155
./strace-static-x86_64: Process 12155 attached
[pid 12154] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12154] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12154] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12155] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12155] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12155] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12155] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12155] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12154] <... futex resumed>)        = 0
[pid 12154] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12155] <... futex resumed>)        = 0
[pid 12154] <... futex resumed>)        = 1
[pid 12155] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12154] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12155] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12155] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12154] <... futex resumed>)        = 0
[pid 12154] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12154] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12155] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12155] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12154] <... futex resumed>)        = 0
[pid 12154] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12155] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12154] <... futex resumed>)        = 0
[pid 12154] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12155] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12155] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12154] <... futex resumed>)        = 0
[pid 12155] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12154] exit_group(0)               = ?
[pid 12155] <... futex resumed>)        = ?
[pid 12155] +++ exited with 0 +++
[pid 12154] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12154, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12156 attached
, child_tidptr=0x555587457690) = 12156
[pid 12156] set_robust_list(0x5555874576a0, 24) = 0
[pid 12156] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12156] setpgid(0, 0)               = 0
[pid 12156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12156] write(3, "1000", 4)         = 4
[pid 12156] close(3)                    = 0
[pid 12156] write(1, "executing program\n", 18executing program
) = 18
[pid 12156] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12156] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12156] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12156] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12156] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12156] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12156] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12157 attached
 <unfinished ...>
[pid 12157] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12157] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12157] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12156] <... clone3 resumed> => {parent_tid=[12157]}, 88) = 12157
[pid 12156] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12156] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12157] <... futex resumed>)        = 0
[pid 12157] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12157] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12157] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12156] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12156] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12157] <... futex resumed>)        = 0
[pid 12157] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12157] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12157] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12156] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12156] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12156] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12157] <... futex resumed>)        = 0
[pid 12157] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12157] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12157] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12156] <... futex resumed>)        = 0
[pid 12156] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12157] <... futex resumed>)        = 0
[pid 12157] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12156] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12157] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12157] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12157] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12156] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12156] exit_group(0)               = ?
[pid 12157] <... futex resumed>)        = ?
[pid 12157] +++ exited with 0 +++
[pid 12156] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12156, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12158
./strace-static-x86_64: Process 12158 attached
[pid 12158] set_robust_list(0x5555874576a0, 24) = 0
[pid 12158] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12158] setpgid(0, 0)               = 0
[pid 12158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12158] write(3, "1000", 4executing program
)         = 4
[pid 12158] close(3)                    = 0
[pid 12158] write(1, "executing program\n", 18) = 18
[pid 12158] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12158] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12158] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12158] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12158] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12158] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12158] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12159 attached
 => {parent_tid=[12159]}, 88) = 12159
[pid 12159] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12159] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12159] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12158] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12158] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12159] <... futex resumed>)        = 0
[pid 12159] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12158] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12159] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12159] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12158] <... futex resumed>)        = 0
[pid 12158] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12158] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12159] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12159] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12158] <... futex resumed>)        = 0
[pid 12158] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12158] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12159] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12159] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12158] <... futex resumed>)        = 0
[pid 12158] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12158] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12159] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12159] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12158] <... futex resumed>)        = 0
[pid 12158] exit_group(0)               = ?
[pid 12159] +++ exited with 0 +++
[pid 12158] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12158, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12160
./strace-static-x86_64: Process 12160 attached
[pid 12160] set_robust_list(0x5555874576a0, 24) = 0
[pid 12160] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12160] setpgid(0, 0)               = 0
[pid 12160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12160] write(3, "1000", 4)         = 4
[pid 12160] close(3)                    = 0
executing program
[pid 12160] write(1, "executing program\n", 18) = 18
[pid 12160] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12160] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12160] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12160] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12160] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12160] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12160] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12161 attached
 => {parent_tid=[12161]}, 88) = 12161
[pid 12160] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12160] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12160] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12161] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12161] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12161] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12161] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12160] <... futex resumed>)        = 0
[pid 12161] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12160] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12161] <... futex resumed>)        = 0
[pid 12161] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12161] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12161] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12160] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12160] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12161] <... futex resumed>)        = 0
[pid 12161] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12161] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12161] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12160] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12160] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12161] <... futex resumed>)        = 0
[pid 12160] <... futex resumed>)        = 1
[pid 12161] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12160] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12161] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12161] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12161] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12160] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12160] exit_group(0 <unfinished ...>
[pid 12161] <... futex resumed>)        = ?
[pid 12160] <... exit_group resumed>)   = ?
[pid 12161] +++ exited with 0 +++
[pid 12160] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12160, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12162
./strace-static-x86_64: Process 12162 attached
[pid 12162] set_robust_list(0x5555874576a0, 24) = 0
[pid 12162] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12162] setpgid(0, 0)               = 0
[pid 12162] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12162] write(3, "1000", 4)         = 4
[pid 12162] close(3)                    = 0
[pid 12162] write(1, "executing program\n", 18executing program
) = 18
[pid 12162] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12162] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12162] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12162] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12162] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12162] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12162] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12163 attached
 <unfinished ...>
[pid 12163] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12163] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12163] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12162] <... clone3 resumed> => {parent_tid=[12163]}, 88) = 12163
[pid 12162] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12162] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12163] <... futex resumed>)        = 0
[pid 12162] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12163] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12163] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12163] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12162] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12162] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12163] <... futex resumed>)        = 0
[pid 12163] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12163] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12162] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12163] <... futex resumed>)        = 0
[pid 12163] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12162] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12162] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12163] <... futex resumed>)        = 0
[pid 12163] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12163] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12162] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12163] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12162] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12162] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12163] <... futex resumed>)        = 0
[pid 12163] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12162] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12163] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12163] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12163] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12162] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12162] exit_group(0)               = ?
[pid 12163] <... futex resumed>)        = ?
[pid 12163] +++ exited with 0 +++
[pid 12162] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12162, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12164
./strace-static-x86_64: Process 12164 attached
[pid 12164] set_robust_list(0x5555874576a0, 24) = 0
[pid 12164] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12164] setpgid(0, 0)               = 0
[pid 12164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12164] write(3, "1000", 4)         = 4
[pid 12164] close(3executing program
)                    = 0
[pid 12164] write(1, "executing program\n", 18) = 18
[pid 12164] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12164] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12164] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12164] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12164] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12164] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12164] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12165]}, 88) = 12165
[pid 12164] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12164] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12164] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12165 attached
 <unfinished ...>
[pid 12165] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12165] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12165] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12165] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12164] <... futex resumed>)        = 0
[pid 12164] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12164] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12165] <... futex resumed>)        = 1
[pid 12165] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12165] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12164] <... futex resumed>)        = 0
[pid 12164] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12164] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12165] <... futex resumed>)        = 1
[pid 12165] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12165] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12164] <... futex resumed>)        = 0
[pid 12164] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12164] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12165] <... futex resumed>)        = 1
[pid 12165] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12165] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12164] <... futex resumed>)        = 0
[pid 12164] exit_group(0)               = ?
[pid 12165] <... futex resumed>)        = ?
[pid 12165] +++ exited with 0 +++
[pid 12164] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12164, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12166
./strace-static-x86_64: Process 12166 attached
[pid 12166] set_robust_list(0x5555874576a0, 24) = 0
[pid 12166] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12166] setpgid(0, 0)               = 0
[pid 12166] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12166] write(3, "1000", 4)         = 4
[pid 12166] close(3)                    = 0
executing program
[pid 12166] write(1, "executing program\n", 18) = 18
[pid 12166] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12166] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12166] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12166] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12166] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12166] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12166] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12167 attached
 => {parent_tid=[12167]}, 88) = 12167
[pid 12167] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12166] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12166] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12166] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12167] <... set_robust_list resumed>) = 0
[pid 12167] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12167] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12167] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12166] <... futex resumed>)        = 0
[pid 12166] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12167] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12166] <... futex resumed>)        = 0
[pid 12167] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12166] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12167] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12166] <... futex resumed>)        = 0
[pid 12166] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12166] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12167] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12167] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12166] <... futex resumed>)        = 0
[pid 12166] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12166] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12167] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12167] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12166] <... futex resumed>)        = 0
[pid 12166] exit_group(0)               = ?
[pid 12167] +++ exited with 0 +++
[pid 12166] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12166, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12168
./strace-static-x86_64: Process 12168 attached
[pid 12168] set_robust_list(0x5555874576a0, 24) = 0
[pid 12168] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12168] setpgid(0, 0)               = 0
[pid 12168] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12168] write(3, "1000", 4)         = 4
[pid 12168] close(3executing program
)                    = 0
[pid 12168] write(1, "executing program\n", 18) = 18
[pid 12168] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12168] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12168] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12168] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12168] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12168] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12168] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12169 attached
 => {parent_tid=[12169]}, 88) = 12169
[pid 12168] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12168] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12168] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12169] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12169] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12169] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12169] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12168] <... futex resumed>)        = 0
[pid 12168] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12168] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12169] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12169] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12168] <... futex resumed>)        = 0
[pid 12168] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12168] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12169] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12169] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12168] <... futex resumed>)        = 0
[pid 12168] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12168] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12169] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12169] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12169] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12168] <... futex resumed>)        = 0
[pid 12168] exit_group(0)               = ?
[pid 12169] <... futex resumed>)        = ?
[pid 12169] +++ exited with 0 +++
[pid 12168] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12168, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12170
./strace-static-x86_64: Process 12170 attached
[pid 12170] set_robust_list(0x5555874576a0, 24) = 0
[pid 12170] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12170] setpgid(0, 0)               = 0
[pid 12170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12170] write(3, "1000", 4)         = 4
[pid 12170] close(3)                    = 0
[pid 12170] write(1, "executing program\n", 18executing program
) = 18
[pid 12170] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12170] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12170] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12170] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12170] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12170] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12170] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12171 attached
 <unfinished ...>
[pid 12171] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12170] <... clone3 resumed> => {parent_tid=[12171]}, 88) = 12171
[pid 12170] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12171] <... set_robust_list resumed>) = 0
[pid 12171] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12170] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12171] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12170] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12171] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12170] <... futex resumed>)        = 0
[pid 12171] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12170] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12171] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12170] <... futex resumed>)        = 0
[pid 12171] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12170] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12171] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12170] <... futex resumed>)        = 0
[pid 12171] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12170] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12171] <... futex resumed>)        = 0
[pid 12170] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12171] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12170] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12171] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12170] <... futex resumed>)        = 0
[pid 12171] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12170] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12171] <... futex resumed>)        = 0
[pid 12170] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12171] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12170] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12171] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12170] <... futex resumed>)        = 0
[pid 12171] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12170] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12171] <... futex resumed>)        = 0
[pid 12170] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12171] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12170] exit_group(0 <unfinished ...>
[pid 12171] <... futex resumed>)        = ?
[pid 12170] <... exit_group resumed>)   = ?
[pid 12171] +++ exited with 0 +++
[pid 12170] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12170, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12172
./strace-static-x86_64: Process 12172 attached
[pid 12172] set_robust_list(0x5555874576a0, 24) = 0
[pid 12172] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12172] setpgid(0, 0)               = 0
[pid 12172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12172] write(3, "1000", 4)         = 4
[pid 12172] close(3)                    = 0
executing program
[pid 12172] write(1, "executing program\n", 18) = 18
[pid 12172] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12172] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12172] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12172] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12172] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12172] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12172] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12173 attached
 => {parent_tid=[12173]}, 88) = 12173
[pid 12173] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12173] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12173] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12172] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12172] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12173] <... futex resumed>)        = 0
[pid 12173] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12173] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12173] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12172] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12172] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12173] <... futex resumed>)        = 0
[pid 12173] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12172] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12173] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12172] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12173] <... futex resumed>)        = 0
[pid 12172] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12173] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12172] <... futex resumed>)        = 0
[pid 12173] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12172] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12173] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12172] <... futex resumed>)        = 0
[pid 12172] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12172] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12173] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12173] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12172] <... futex resumed>)        = 0
[pid 12172] exit_group(0)               = ?
[pid 12173] +++ exited with 0 +++
[pid 12172] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12172, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12174 attached
, child_tidptr=0x555587457690) = 12174
[pid 12174] set_robust_list(0x5555874576a0, 24) = 0
[pid 12174] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12174] setpgid(0, 0)               = 0
[pid 12174] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12174] write(3, "1000", 4)         = 4
[pid 12174] close(3)                    = 0
[pid 12174] write(1, "executing program\n", 18) = 18
executing program
[pid 12174] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12174] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12174] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12174] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12174] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12174] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12174] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12175 attached
 => {parent_tid=[12175]}, 88) = 12175
[pid 12175] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12175] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12175] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12174] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12174] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12175] <... futex resumed>)        = 0
[pid 12175] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12175] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12175] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12174] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12174] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12175] <... futex resumed>)        = 0
[pid 12175] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12175] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12175] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12174] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12174] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12175] <... futex resumed>)        = 0
[pid 12175] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12175] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12175] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12174] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12174] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12175] <... futex resumed>)        = 0
[pid 12175] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12175] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12175] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12174] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12174] exit_group(0)               = ?
[pid 12175] <... futex resumed>)        = ?
[pid 12175] +++ exited with 0 +++
[pid 12174] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12174, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12176 attached
, child_tidptr=0x555587457690) = 12176
[pid 12176] set_robust_list(0x5555874576a0, 24) = 0
[pid 12176] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12176] setpgid(0, 0)               = 0
[pid 12176] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12176] write(3, "1000", 4)         = 4
[pid 12176] close(3)                    = 0
[pid 12176] write(1, "executing program\n", 18executing program
) = 18
[pid 12176] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12176] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12176] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12176] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12176] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12176] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12176] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12177 attached
 => {parent_tid=[12177]}, 88) = 12177
[pid 12177] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12177] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12177] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12176] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12176] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12177] <... futex resumed>)        = 0
[pid 12177] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12177] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12176] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12177] <... futex resumed>)        = 0
[pid 12177] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12176] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12176] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12177] <... futex resumed>)        = 0
[pid 12177] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12177] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12177] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12176] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12176] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12177] <... futex resumed>)        = 0
[pid 12177] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12177] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12176] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12177] <... futex resumed>)        = 0
[pid 12177] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12176] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12177] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12176] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12177] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12177] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12177] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12176] <... futex resumed>)        = 1
[pid 12177] <... futex resumed>)        = 0
[pid 12176] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12177] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12176] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12176] exit_group(0)               = ?
[pid 12177] <... futex resumed>)        = ?
[pid 12177] +++ exited with 0 +++
[pid 12176] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12176, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12178 attached
, child_tidptr=0x555587457690) = 12178
[pid 12178] set_robust_list(0x5555874576a0, 24) = 0
[pid 12178] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12178] setpgid(0, 0)               = 0
[pid 12178] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12178] write(3, "1000", 4)         = 4
[pid 12178] close(3executing program
)                    = 0
[pid 12178] write(1, "executing program\n", 18) = 18
[pid 12178] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12178] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12178] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12178] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12178] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12178] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12178] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12179 attached
 => {parent_tid=[12179]}, 88) = 12179
[pid 12178] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12179] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12178] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12178] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12178] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12179] <... set_robust_list resumed>) = 0
[pid 12179] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12179] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12179] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12178] <... futex resumed>)        = 0
[pid 12178] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12179] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12178] <... futex resumed>)        = 0
[pid 12179] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12178] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12179] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12178] <... futex resumed>)        = 0
[pid 12178] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12178] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12179] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12179] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12178] <... futex resumed>)        = 0
[pid 12178] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12178] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12179] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12179] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12178] <... futex resumed>)        = 0
[pid 12178] exit_group(0)               = ?
[pid 12179] +++ exited with 0 +++
[pid 12178] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12178, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12180
./strace-static-x86_64: Process 12180 attached
[pid 12180] set_robust_list(0x5555874576a0, 24) = 0
[pid 12180] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12180] setpgid(0, 0)               = 0
[pid 12180] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12180] write(3, "1000", 4)         = 4
[pid 12180] close(3)                    = 0
[pid 12180] write(1, "executing program\n", 18executing program
) = 18
[pid 12180] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12180] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12180] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12180] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12180] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12180] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12180] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12181 attached
 => {parent_tid=[12181]}, 88) = 12181
[pid 12181] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12181] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12181] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12180] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12180] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12181] <... futex resumed>)        = 0
[pid 12181] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12180] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12181] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12181] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12180] <... futex resumed>)        = 0
[pid 12180] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12180] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12181] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12181] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12180] <... futex resumed>)        = 0
[pid 12180] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12180] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12181] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12181] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12180] <... futex resumed>)        = 0
[pid 12180] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12180] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12181] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12181] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12180] <... futex resumed>)        = 0
[pid 12180] exit_group(0)               = ?
[pid 12181] +++ exited with 0 +++
[pid 12180] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12180, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12182
./strace-static-x86_64: Process 12182 attached
[pid 12182] set_robust_list(0x5555874576a0, 24) = 0
[pid 12182] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12182] setpgid(0, 0)               = 0
[pid 12182] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
executing program
[pid 12182] write(3, "1000", 4)         = 4
[pid 12182] close(3)                    = 0
[pid 12182] write(1, "executing program\n", 18) = 18
[pid 12182] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12182] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12182] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12182] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12182] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12182] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12182] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12183 attached
 => {parent_tid=[12183]}, 88) = 12183
[pid 12183] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12182] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12182] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12182] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12183] <... set_robust_list resumed>) = 0
[pid 12183] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12183] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12183] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12182] <... futex resumed>)        = 0
[pid 12182] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12182] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12183] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12183] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12182] <... futex resumed>)        = 0
[pid 12182] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12183] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12182] <... futex resumed>)        = 0
[pid 12182] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12183] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12183] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12182] <... futex resumed>)        = 0
[pid 12183] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12182] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12182] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12183] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12183] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12183] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12182] <... futex resumed>)        = 0
[pid 12183] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12182] exit_group(0)               = ?
[pid 12183] <... futex resumed>)        = ?
[pid 12183] +++ exited with 0 +++
[pid 12182] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12182, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12184
./strace-static-x86_64: Process 12184 attached
[pid 12184] set_robust_list(0x5555874576a0, 24) = 0
[pid 12184] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12184] setpgid(0, 0)               = 0
[pid 12184] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12184] write(3, "1000", 4)         = 4
[pid 12184] close(3)                    = 0
[pid 12184] write(1, "executing program\n", 18executing program
) = 18
[pid 12184] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12184] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12184] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12184] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12184] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12184] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12184] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12185 attached
 => {parent_tid=[12185]}, 88) = 12185
[pid 12185] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12185] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12185] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12184] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12184] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12185] <... futex resumed>)        = 0
[pid 12185] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12185] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12185] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12184] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12184] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12185] <... futex resumed>)        = 0
[pid 12184] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12185] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12185] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12185] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12184] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12184] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12185] <... futex resumed>)        = 0
[pid 12184] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12185] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12185] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12184] <... futex resumed>)        = 0
[pid 12184] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12184] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12185] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12185] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12184] <... futex resumed>)        = 0
[pid 12184] exit_group(0 <unfinished ...>
[pid 12185] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12184] <... exit_group resumed>)   = ?
[pid 12185] <... futex resumed>)        = ?
[pid 12185] +++ exited with 0 +++
[pid 12184] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12184, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12186
./strace-static-x86_64: Process 12186 attached
[pid 12186] set_robust_list(0x5555874576a0, 24) = 0
[pid 12186] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12186] setpgid(0, 0)               = 0
[pid 12186] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12186] write(3, "1000", 4)         = 4
[pid 12186] close(3)                    = 0
[pid 12186] write(1, "executing program\n", 18executing program
) = 18
[pid 12186] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12186] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12186] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12186] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12186] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12186] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12186] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12187]}, 88) = 12187
./strace-static-x86_64: Process 12187 attached
[pid 12187] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12187] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12187] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12186] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12186] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12187] <... futex resumed>)        = 0
[pid 12187] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12187] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12187] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12186] <... futex resumed>)        = 1
[pid 12186] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12186] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12187] <... futex resumed>)        = 0
[pid 12187] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12187] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12187] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12186] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12186] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12187] <... futex resumed>)        = 0
[pid 12187] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12187] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12187] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12186] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12186] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12187] <... futex resumed>)        = 0
[pid 12187] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12186] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12187] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12187] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12187] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12186] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12186] exit_group(0)               = ?
[pid 12187] <... futex resumed>)        = ?
[pid 12187] +++ exited with 0 +++
[pid 12186] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12186, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12188 attached
, child_tidptr=0x555587457690) = 12188
[pid 12188] set_robust_list(0x5555874576a0, 24) = 0
[pid 12188] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12188] setpgid(0, 0)               = 0
[pid 12188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12188] write(3, "1000", 4)         = 4
[pid 12188] close(3)                    = 0
[pid 12188] write(1, "executing program\n", 18executing program
) = 18
[pid 12188] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12188] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12188] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12188] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12188] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12188] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12188] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12189 attached
 => {parent_tid=[12189]}, 88) = 12189
[pid 12189] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12189] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12189] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12188] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12188] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12189] <... futex resumed>)        = 0
[pid 12189] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12188] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12189] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12189] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12189] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12188] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12188] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12189] <... futex resumed>)        = 0
[pid 12189] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12189] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12189] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12188] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12188] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12189] <... futex resumed>)        = 0
[pid 12189] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12189] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12189] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12188] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12188] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12189] <... futex resumed>)        = 0
[pid 12189] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12189] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12189] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12188] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12188] exit_group(0)               = ?
[pid 12189] <... futex resumed>)        = ?
[pid 12189] +++ exited with 0 +++
[pid 12188] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12188, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12190
./strace-static-x86_64: Process 12190 attached
[pid 12190] set_robust_list(0x5555874576a0, 24) = 0
[pid 12190] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12190] setpgid(0, 0)               = 0
[pid 12190] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12190] write(3, "1000", 4)         = 4
[pid 12190] close(3)                    = 0
[pid 12190] write(1, "executing program\n", 18executing program
) = 18
[pid 12190] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12190] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12190] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12190] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12190] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12190] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12190] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12191]}, 88) = 12191
./strace-static-x86_64: Process 12191 attached
[pid 12190] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12191] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12190] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12190] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12191] <... set_robust_list resumed>) = 0
[pid 12191] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12190] <... futex resumed>)        = 0
[pid 12191] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12190] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12191] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12191] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12190] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12190] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12190] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12191] <... futex resumed>)        = 0
[pid 12191] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12191] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12190] <... futex resumed>)        = 0
[pid 12190] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12190] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12191] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12191] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12190] <... futex resumed>)        = 0
[pid 12190] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12190] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12191] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12191] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12190] <... futex resumed>)        = 0
[pid 12190] exit_group(0)               = ?
[pid 12191] +++ exited with 0 +++
[pid 12190] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12190, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12192 attached
 <unfinished ...>
[pid 12192] set_robust_list(0x5555874576a0, 24) = 0
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 12192
[pid 12192] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12192] setpgid(0, 0)               = 0
[pid 12192] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12192] write(3, "1000", 4)         = 4
[pid 12192] close(3)                    = 0
executing program
[pid 12192] write(1, "executing program\n", 18) = 18
[pid 12192] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12192] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12192] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12192] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12192] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12192] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12192] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12193 attached
 => {parent_tid=[12193]}, 88) = 12193
[pid 12193] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12193] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12193] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12192] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12192] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12193] <... futex resumed>)        = 0
[pid 12192] <... futex resumed>)        = 1
[pid 12193] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12193] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12193] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12192] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12192] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12193] <... futex resumed>)        = 0
[pid 12192] <... futex resumed>)        = 1
[pid 12193] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12193] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12193] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12192] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12192] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12193] <... futex resumed>)        = 0
[pid 12192] <... futex resumed>)        = 1
[pid 12193] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12193] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12193] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12192] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12192] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12193] <... futex resumed>)        = 0
[pid 12192] <... futex resumed>)        = 1
[pid 12193] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12193] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12193] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12192] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12192] exit_group(0 <unfinished ...>
[pid 12193] <... futex resumed>)        = ?
[pid 12192] <... exit_group resumed>)   = ?
[pid 12193] +++ exited with 0 +++
[pid 12192] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12192, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12194 attached
, child_tidptr=0x555587457690) = 12194
[pid 12194] set_robust_list(0x5555874576a0, 24) = 0
[pid 12194] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12194] setpgid(0, 0)               = 0
[pid 12194] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12194] write(3, "1000", 4)         = 4
[pid 12194] close(3)                    = 0
executing program
[pid 12194] write(1, "executing program\n", 18) = 18
[pid 12194] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12194] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12194] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12194] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12194] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12194] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12194] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12195 attached
 => {parent_tid=[12195]}, 88) = 12195
[pid 12194] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12194] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12194] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12195] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12195] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12195] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12195] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12194] <... futex resumed>)        = 0
[pid 12194] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12194] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12195] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12195] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12194] <... futex resumed>)        = 0
[pid 12194] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12194] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12195] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12195] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12194] <... futex resumed>)        = 0
[pid 12195] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12194] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12194] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12195] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12195] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12195] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12194] <... futex resumed>)        = 0
[pid 12194] exit_group(0 <unfinished ...>
[pid 12195] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12194] <... exit_group resumed>)   = ?
[pid 12195] <... futex resumed>)        = ?
[pid 12195] +++ exited with 0 +++
[pid 12194] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12194, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12196
./strace-static-x86_64: Process 12196 attached
[pid 12196] set_robust_list(0x5555874576a0, 24) = 0
[pid 12196] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12196] setpgid(0, 0)               = 0
[pid 12196] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12196] write(3, "1000", 4)         = 4
[pid 12196] close(3)                    = 0
[pid 12196] write(1, "executing program\n", 18executing program
) = 18
[pid 12196] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12196] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12196] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12196] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12196] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12196] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12196] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12197 attached
 => {parent_tid=[12197]}, 88) = 12197
[pid 12196] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12196] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12196] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12197] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12197] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12197] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12197] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12196] <... futex resumed>)        = 0
[pid 12197] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12196] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12197] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12196] <... futex resumed>)        = 0
[pid 12197] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12196] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12197] <... futex resumed>)        = 0
[pid 12196] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12197] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12196] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12197] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12196] <... futex resumed>)        = 0
[pid 12197] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12196] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12197] <... futex resumed>)        = 0
[pid 12196] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12197] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12196] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12197] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12196] <... futex resumed>)        = 0
[pid 12197] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12196] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12197] <... futex resumed>)        = 0
[pid 12196] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12197] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12196] exit_group(0 <unfinished ...>
[pid 12197] <... futex resumed>)        = ?
[pid 12196] <... exit_group resumed>)   = ?
[pid 12197] +++ exited with 0 +++
[pid 12196] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12196, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12198 attached
, child_tidptr=0x555587457690) = 12198
[pid 12198] set_robust_list(0x5555874576a0, 24) = 0
[pid 12198] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12198] setpgid(0, 0)               = 0
[pid 12198] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12198] write(3, "1000", 4)         = 4
[pid 12198] close(3)                    = 0
[pid 12198] write(1, "executing program\n", 18) = 18
[pid 12198] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000executing program
) = 0
[pid 12198] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12198] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12198] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12198] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12198] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12198] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12199 attached
 => {parent_tid=[12199]}, 88) = 12199
[pid 12199] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12198] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12199] <... set_robust_list resumed>) = 0
[pid 12198] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12199] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12198] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12199] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12198] <... futex resumed>)        = 0
[pid 12199] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12198] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12199] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12199] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12198] <... futex resumed>)        = 0
[pid 12199] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12198] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12199] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12198] <... futex resumed>)        = 0
[pid 12199] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12198] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12199] <... futex resumed>)        = 0
[pid 12198] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12199] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12198] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12198] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12199] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12199] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12198] <... futex resumed>)        = 0
[pid 12199] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12198] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12199] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12198] <... futex resumed>)        = 0
[pid 12199] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12199] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12198] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12198] exit_group(0 <unfinished ...>
[pid 12199] <... futex resumed>)        = ?
[pid 12198] <... exit_group resumed>)   = ?
[pid 12199] +++ exited with 0 +++
[pid 12198] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12198, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program
, child_tidptr=0x555587457690) = 12200
./strace-static-x86_64: Process 12200 attached
[pid 12200] set_robust_list(0x5555874576a0, 24) = 0
[pid 12200] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12200] setpgid(0, 0)               = 0
[pid 12200] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12200] write(3, "1000", 4)         = 4
[pid 12200] close(3)                    = 0
[pid 12200] write(1, "executing program\n", 18) = 18
[pid 12200] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12200] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12200] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12200] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12200] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12200] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12200] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12201 attached
 <unfinished ...>
[pid 12201] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12200] <... clone3 resumed> => {parent_tid=[12201]}, 88) = 12201
[pid 12200] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12200] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12200] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12201] <... set_robust_list resumed>) = 0
[pid 12201] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12201] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12201] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12201] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12200] <... futex resumed>)        = 0
[pid 12200] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12201] <... futex resumed>)        = 0
[pid 12201] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12200] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12201] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12200] <... futex resumed>)        = 0
[pid 12200] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12200] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12201] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12201] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12200] <... futex resumed>)        = 0
[pid 12200] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12200] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12201] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12201] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12200] <... futex resumed>)        = 0
[pid 12200] exit_group(0)               = ?
[pid 12201] +++ exited with 0 +++
[pid 12200] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12200, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12202
./strace-static-x86_64: Process 12202 attached
[pid 12202] set_robust_list(0x5555874576a0, 24) = 0
[pid 12202] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12202] setpgid(0, 0)               = 0
[pid 12202] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12202] write(3, "1000", 4)         = 4
[pid 12202] close(3)                    = 0
executing program
[pid 12202] write(1, "executing program\n", 18) = 18
[pid 12202] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12202] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12202] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12202] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12202] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12202] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12202] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12203 attached
 => {parent_tid=[12203]}, 88) = 12203
[pid 12203] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12202] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12203] <... set_robust_list resumed>) = 0
[pid 12202] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12203] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12202] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12203] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12202] <... futex resumed>)        = 0
[pid 12203] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12202] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12203] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12203] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12202] <... futex resumed>)        = 0
[pid 12202] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12202] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12203] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12203] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12202] <... futex resumed>)        = 0
[pid 12202] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12202] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12203] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12203] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12203] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12202] <... futex resumed>)        = 0
[pid 12202] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12202] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12203] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12203] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12203] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12202] <... futex resumed>)        = 0
[pid 12202] exit_group(0)               = ?
[pid 12203] +++ exited with 0 +++
[pid 12202] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12202, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12204 attached
, child_tidptr=0x555587457690) = 12204
[pid 12204] set_robust_list(0x5555874576a0, 24) = 0
[pid 12204] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12204] setpgid(0, 0)               = 0
[pid 12204] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12204] write(3, "1000", 4)         = 4
[pid 12204] close(3)                    = 0
[pid 12204] write(1, "executing program\n", 18executing program
) = 18
[pid 12204] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12204] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12204] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12204] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12204] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12204] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12204] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12205 attached
 <unfinished ...>
[pid 12205] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12205] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12205] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12204] <... clone3 resumed> => {parent_tid=[12205]}, 88) = 12205
[pid 12204] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12204] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12205] <... futex resumed>)        = 0
[pid 12204] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12205] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12205] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12204] <... futex resumed>)        = 0
[pid 12205] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12204] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12204] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12205] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12205] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12204] <... futex resumed>)        = 0
[pid 12204] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12205] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12204] <... futex resumed>)        = 0
[pid 12204] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12205] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12205] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12204] <... futex resumed>)        = 0
[pid 12204] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12204] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12205] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12205] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12204] <... futex resumed>)        = 0
[pid 12205] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12204] exit_group(0)               = ?
[pid 12205] <... futex resumed>)        = ?
[pid 12205] +++ exited with 0 +++
[pid 12204] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12204, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12206
./strace-static-x86_64: Process 12206 attached
[pid 12206] set_robust_list(0x5555874576a0, 24) = 0
[pid 12206] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12206] setpgid(0, 0)               = 0
[pid 12206] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12206] write(3, "1000", 4)         = 4
[pid 12206] close(3)                    = 0
[pid 12206] write(1, "executing program\n", 18executing program
) = 18
[pid 12206] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12206] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12206] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12206] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12206] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12206] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12206] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12207]}, 88) = 12207
[pid 12206] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12206] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12206] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12207 attached
 <unfinished ...>
[pid 12207] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12207] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12207] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12207] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12206] <... futex resumed>)        = 0
[pid 12206] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12206] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12207] <... futex resumed>)        = 1
[pid 12207] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12207] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12206] <... futex resumed>)        = 0
[pid 12206] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12206] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12207] <... futex resumed>)        = 1
[pid 12207] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12207] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12206] <... futex resumed>)        = 0
[pid 12206] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12206] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12207] <... futex resumed>)        = 1
[pid 12207] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12207] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12206] <... futex resumed>)        = 0
[pid 12206] exit_group(0)               = ?
[pid 12207] +++ exited with 0 +++
[pid 12206] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12206, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12208
./strace-static-x86_64: Process 12208 attached
[pid 12208] set_robust_list(0x5555874576a0, 24) = 0
[pid 12208] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12208] setpgid(0, 0)               = 0
[pid 12208] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12208] write(3, "1000", 4)         = 4
[pid 12208] close(3)                    = 0
[pid 12208] write(1, "executing program\n", 18executing program
) = 18
[pid 12208] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12208] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12208] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12208] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12208] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12208] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12208] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12209 attached
 <unfinished ...>
[pid 12209] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12209] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12209] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12208] <... clone3 resumed> => {parent_tid=[12209]}, 88) = 12209
[pid 12208] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12208] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12209] <... futex resumed>)        = 0
[pid 12208] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12209] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12209] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12209] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12208] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12208] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12209] <... futex resumed>)        = 0
[pid 12209] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12209] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12209] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12208] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12208] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12209] <... futex resumed>)        = 0
[pid 12208] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12209] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12209] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12208] <... futex resumed>)        = 0
[pid 12209] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12208] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12209] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12208] <... futex resumed>)        = 0
[pid 12208] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12209] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12209] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12208] <... futex resumed>)        = 0
[pid 12209] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12208] exit_group(0 <unfinished ...>
[pid 12209] <... futex resumed>)        = ?
[pid 12208] <... exit_group resumed>)   = ?
[pid 12209] +++ exited with 0 +++
[pid 12208] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12208, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12210 attached
, child_tidptr=0x555587457690) = 12210
[pid 12210] set_robust_list(0x5555874576a0, 24) = 0
[pid 12210] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12210] setpgid(0, 0)               = 0
[pid 12210] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12210] write(3, "1000", 4)         = 4
[pid 12210] close(3)                    = 0
[pid 12210] write(1, "executing program\n", 18executing program
) = 18
[pid 12210] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12210] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12210] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12210] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12210] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12210] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12210] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12211 attached
 => {parent_tid=[12211]}, 88) = 12211
[pid 12211] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12210] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12211] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12211] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12210] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12210] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12211] <... futex resumed>)        = 0
[pid 12211] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12211] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12211] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12210] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12210] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12211] <... futex resumed>)        = 0
[pid 12211] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12211] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12211] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12210] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12210] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12211] <... futex resumed>)        = 0
[pid 12211] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12211] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12211] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12210] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12210] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12211] <... futex resumed>)        = 0
[pid 12210] <... futex resumed>)        = 1
[pid 12210] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12211] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12211] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12211] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12210] <... futex resumed>)        = 0
[pid 12210] exit_group(0)               = ?
[pid 12211] <... futex resumed>)        = ?
[pid 12211] +++ exited with 0 +++
[pid 12210] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12210, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12212
./strace-static-x86_64: Process 12212 attached
[pid 12212] set_robust_list(0x5555874576a0, 24) = 0
[pid 12212] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12212] setpgid(0, 0)               = 0
[pid 12212] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12212] write(3, "1000", 4)         = 4
[pid 12212] close(3)                    = 0
executing program
[pid 12212] write(1, "executing program\n", 18) = 18
[pid 12212] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12212] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12212] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12212] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12212] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12212] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12212] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12213 attached
 => {parent_tid=[12213]}, 88) = 12213
[pid 12213] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12212] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12213] <... set_robust_list resumed>) = 0
[pid 12212] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12213] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12212] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12213] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12213] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12212] <... futex resumed>)        = 0
[pid 12212] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12213] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12213] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12212] <... futex resumed>)        = 0
[pid 12212] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12212] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12213] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12213] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12212] <... futex resumed>)        = 0
[pid 12212] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12212] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12213] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12213] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12212] <... futex resumed>)        = 0
[pid 12212] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12212] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12213] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12213] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12212] <... futex resumed>)        = 0
[pid 12212] exit_group(0)               = ?
[pid 12213] +++ exited with 0 +++
[pid 12212] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12212, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12214
./strace-static-x86_64: Process 12214 attached
[pid 12214] set_robust_list(0x5555874576a0, 24) = 0
[pid 12214] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12214] setpgid(0, 0)               = 0
[pid 12214] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12214] write(3, "1000", 4)         = 4
[pid 12214] close(3)                    = 0
[pid 12214] write(1, "executing program\n", 18) = 18
executing program
[pid 12214] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12214] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12214] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12214] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12214] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12214] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12214] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12215]}, 88) = 12215
[pid 12214] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12214] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12214] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12215 attached
 <unfinished ...>
[pid 12215] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12215] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12215] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12215] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12214] <... futex resumed>)        = 0
[pid 12214] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12214] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12215] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12215] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12214] <... futex resumed>)        = 0
[pid 12214] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12214] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12215] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12215] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12214] <... futex resumed>)        = 0
[pid 12214] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12214] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12215] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12215] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12214] <... futex resumed>)        = 0
[pid 12214] exit_group(0)               = ?
[pid 12215] +++ exited with 0 +++
[pid 12214] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12214, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12216
./strace-static-x86_64: Process 12216 attached
[pid 12216] set_robust_list(0x5555874576a0, 24) = 0
[pid 12216] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12216] setpgid(0, 0)               = 0
[pid 12216] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12216] write(3, "1000", 4)         = 4
[pid 12216] close(3)                    = 0
executing program
[pid 12216] write(1, "executing program\n", 18) = 18
[pid 12216] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12216] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12216] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12216] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12216] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12216] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12216] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12217]}, 88) = 12217
./strace-static-x86_64: Process 12217 attached
[pid 12216] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12216] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12216] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12217] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12217] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12217] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12217] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12216] <... futex resumed>)        = 0
[pid 12216] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12216] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12217] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12217] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12216] <... futex resumed>)        = 0
[pid 12216] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12216] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12217] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12217] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12216] <... futex resumed>)        = 0
[pid 12216] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12217] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12216] <... futex resumed>)        = 0
[pid 12217] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12216] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12217] <... futex resumed>)        = 0
[pid 12216] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12217] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12216] exit_group(0 <unfinished ...>
[pid 12217] <... futex resumed>)        = ?
[pid 12216] <... exit_group resumed>)   = ?
[pid 12217] +++ exited with 0 +++
[pid 12216] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12216, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12218
./strace-static-x86_64: Process 12218 attached
[pid 12218] set_robust_list(0x5555874576a0, 24) = 0
[pid 12218] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12218] setpgid(0, 0)               = 0
[pid 12218] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12218] write(3, "1000", 4)         = 4
[pid 12218] close(3)                    = 0
[pid 12218] write(1, "executing program\n", 18) = 18
[pid 12218] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
executing program
[pid 12218] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12218] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12218] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12218] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12218] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12218] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12219 attached
 => {parent_tid=[12219]}, 88) = 12219
[pid 12218] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12218] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12218] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12219] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12219] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12219] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12219] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12218] <... futex resumed>)        = 0
[pid 12219] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12218] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12218] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12219] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12219] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12219] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12218] <... futex resumed>)        = 0
[pid 12219] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12218] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12219] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12218] <... futex resumed>)        = 0
[pid 12219] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12218] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12219] <... futex resumed>)        = 0
[pid 12218] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12219] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12218] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12219] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12218] <... futex resumed>)        = 0
[pid 12219] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12218] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12219] <... futex resumed>)        = 0
[pid 12218] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12219] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12218] exit_group(0 <unfinished ...>
[pid 12219] <... futex resumed>)        = ?
[pid 12218] <... exit_group resumed>)   = ?
[pid 12219] +++ exited with 0 +++
[pid 12218] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12218, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12220
./strace-static-x86_64: Process 12220 attached
[pid 12220] set_robust_list(0x5555874576a0, 24) = 0
[pid 12220] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12220] setpgid(0, 0)               = 0
[pid 12220] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12220] write(3, "1000", 4)         = 4
[pid 12220] close(3executing program
)                    = 0
[pid 12220] write(1, "executing program\n", 18) = 18
[pid 12220] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12220] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12220] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12220] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12220] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12220] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12220] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12221 attached
 => {parent_tid=[12221]}, 88) = 12221
[pid 12221] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12220] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12221] <... set_robust_list resumed>) = 0
[pid 12220] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12221] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12220] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12221] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12220] <... futex resumed>)        = 0
[pid 12221] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12220] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12221] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12221] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12220] <... futex resumed>)        = 0
[pid 12221] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12220] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12221] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12220] <... futex resumed>)        = 0
[pid 12221] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12220] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12221] <... futex resumed>)        = 0
[pid 12220] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12221] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12220] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12221] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12220] <... futex resumed>)        = 0
[pid 12221] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12220] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12221] <... futex resumed>)        = 0
[pid 12220] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12221] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12220] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12221] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12220] <... futex resumed>)        = 0
[pid 12221] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12220] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12221] <... futex resumed>)        = 0
[pid 12220] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12221] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12220] exit_group(0 <unfinished ...>
[pid 12221] <... futex resumed>)        = ?
[pid 12220] <... exit_group resumed>)   = ?
[pid 12221] +++ exited with 0 +++
[pid 12220] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12220, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12222
./strace-static-x86_64: Process 12222 attached
[pid 12222] set_robust_list(0x5555874576a0, 24) = 0
[pid 12222] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12222] setpgid(0, 0)               = 0
[pid 12222] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12222] write(3, "1000", 4)         = 4
[pid 12222] close(3)                    = 0
executing program
[pid 12222] write(1, "executing program\n", 18) = 18
[pid 12222] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12222] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12222] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12222] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12222] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12222] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12222] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12223]}, 88) = 12223
[pid 12222] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12222] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12222] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12223 attached
 <unfinished ...>
[pid 12223] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12223] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12223] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12223] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12222] <... futex resumed>)        = 0
[pid 12222] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12222] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12223] <... futex resumed>)        = 1
[pid 12223] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12223] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12222] <... futex resumed>)        = 0
[pid 12222] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12222] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12223] <... futex resumed>)        = 1
[pid 12223] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12223] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12222] <... futex resumed>)        = 0
[pid 12222] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12222] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12223] <... futex resumed>)        = 1
[pid 12223] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12223] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12222] <... futex resumed>)        = 0
[pid 12222] exit_group(0)               = ?
[pid 12223] <... futex resumed>)        = ?
[pid 12223] +++ exited with 0 +++
[pid 12222] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12222, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12224
./strace-static-x86_64: Process 12224 attached
[pid 12224] set_robust_list(0x5555874576a0, 24) = 0
[pid 12224] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12224] setpgid(0, 0)               = 0
[pid 12224] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12224] write(3, "1000", 4)         = 4
[pid 12224] close(3)                    = 0
[pid 12224] write(1, "executing program\n", 18executing program
) = 18
[pid 12224] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12224] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12224] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12224] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12224] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12224] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12224] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12225 attached
 => {parent_tid=[12225]}, 88) = 12225
[pid 12225] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12224] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12224] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12224] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12225] <... set_robust_list resumed>) = 0
[pid 12225] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12225] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12225] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12224] <... futex resumed>)        = 0
[pid 12224] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12224] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12225] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12225] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12224] <... futex resumed>)        = 0
[pid 12224] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12224] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12225] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12225] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12224] <... futex resumed>)        = 0
[pid 12224] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12224] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12225] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12225] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12225] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12224] <... futex resumed>)        = 0
[pid 12224] exit_group(0)               = ?
[pid 12225] <... futex resumed>)        = ?
[pid 12225] +++ exited with 0 +++
[pid 12224] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12224, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12226 attached
, child_tidptr=0x555587457690) = 12226
[pid 12226] set_robust_list(0x5555874576a0, 24) = 0
[pid 12226] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12226] setpgid(0, 0)               = 0
[pid 12226] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12226] write(3, "1000", 4)         = 4
[pid 12226] close(3)                    = 0
executing program
[pid 12226] write(1, "executing program\n", 18) = 18
[pid 12226] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12226] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12226] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12226] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12226] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12226] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12226] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12227 attached
 <unfinished ...>
[pid 12227] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12226] <... clone3 resumed> => {parent_tid=[12227]}, 88) = 12227
[pid 12227] <... set_robust_list resumed>) = 0
[pid 12226] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12227] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12226] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12227] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12226] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12227] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12227] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12226] <... futex resumed>)        = 0
[pid 12226] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12226] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12227] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12227] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12226] <... futex resumed>)        = 0
[pid 12226] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12226] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12227] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12227] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12226] <... futex resumed>)        = 0
[pid 12226] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12226] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12227] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12227] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12226] <... futex resumed>)        = 0
[pid 12226] exit_group(0)               = ?
[pid 12227] +++ exited with 0 +++
[pid 12226] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12226, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12228
./strace-static-x86_64: Process 12228 attached
[pid 12228] set_robust_list(0x5555874576a0, 24) = 0
[pid 12228] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12228] setpgid(0, 0)               = 0
[pid 12228] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12228] write(3, "1000", 4)         = 4
[pid 12228] close(3executing program
)                    = 0
[pid 12228] write(1, "executing program\n", 18) = 18
[pid 12228] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12228] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12228] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12228] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12228] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12228] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12228] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12229 attached
 <unfinished ...>
[pid 12229] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12228] <... clone3 resumed> => {parent_tid=[12229]}, 88) = 12229
[pid 12229] <... set_robust_list resumed>) = 0
[pid 12228] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12229] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12228] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12229] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12228] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12229] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12228] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12229] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12229] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12228] <... futex resumed>)        = 0
[pid 12228] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12228] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12229] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12229] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12228] <... futex resumed>)        = 0
[pid 12228] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12228] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12229] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12229] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12228] <... futex resumed>)        = 0
[pid 12228] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12228] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12229] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12229] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12228] <... futex resumed>)        = 0
[pid 12228] exit_group(0)               = ?
[pid 12229] +++ exited with 0 +++
[pid 12228] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12228, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12230 attached
 <unfinished ...>
[pid 12230] set_robust_list(0x5555874576a0, 24) = 0
[pid 12230] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12230] setpgid(0, 0 <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 12230
[pid 12230] <... setpgid resumed>)      = 0
[pid 12230] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12230] write(3, "1000", 4)         = 4
[pid 12230] close(3)                    = 0
[pid 12230] write(1, "executing program\n", 18executing program
) = 18
[pid 12230] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12230] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12230] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12230] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12230] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12230] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12230] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12231 attached
 => {parent_tid=[12231]}, 88) = 12231
[pid 12230] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12230] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12230] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12231] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12231] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12231] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12231] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12230] <... futex resumed>)        = 0
[pid 12230] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12230] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12231] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12231] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12230] <... futex resumed>)        = 0
[pid 12230] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12230] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12231] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12231] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12230] <... futex resumed>)        = 0
[pid 12230] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12230] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12231] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12231] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12231] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12230] <... futex resumed>)        = 0
[pid 12230] exit_group(0)               = ?
[pid 12231] <... futex resumed>)        = ?
[pid 12231] +++ exited with 0 +++
[pid 12230] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12230, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12232
./strace-static-x86_64: Process 12232 attached
[pid 12232] set_robust_list(0x5555874576a0, 24) = 0
[pid 12232] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12232] setpgid(0, 0)               = 0
[pid 12232] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12232] write(3, "1000", 4)         = 4
[pid 12232] close(3)                    = 0
executing program
[pid 12232] write(1, "executing program\n", 18) = 18
[pid 12232] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12232] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12232] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12232] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12232] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12232] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12232] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12233 attached
 => {parent_tid=[12233]}, 88) = 12233
[pid 12232] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12233] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12232] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12232] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12232] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12233] <... set_robust_list resumed>) = 0
[pid 12233] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12233] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12233] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12233] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12232] <... futex resumed>)        = 0
[pid 12232] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12233] <... futex resumed>)        = 0
[pid 12233] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12232] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12233] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12232] <... futex resumed>)        = 0
[pid 12232] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12232] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12233] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12233] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12232] <... futex resumed>)        = 0
[pid 12232] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12232] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12233] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12233] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12232] <... futex resumed>)        = 0
[pid 12232] exit_group(0)               = ?
[pid 12233] +++ exited with 0 +++
[pid 12232] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12232, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12234
./strace-static-x86_64: Process 12234 attached
[pid 12234] set_robust_list(0x5555874576a0, 24) = 0
[pid 12234] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12234] setpgid(0, 0)               = 0
[pid 12234] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12234] write(3, "1000", 4)         = 4
[pid 12234] close(3)                    = 0
[pid 12234] write(1, "executing program\n", 18executing program
) = 18
[pid 12234] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12234] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12234] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12234] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12234] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12234] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12234] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12235 attached
 => {parent_tid=[12235]}, 88) = 12235
[pid 12235] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12235] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12235] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12234] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12234] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12235] <... futex resumed>)        = 0
[pid 12234] <... futex resumed>)        = 1
[pid 12234] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12235] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12235] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12234] <... futex resumed>)        = 0
[pid 12235] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12234] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12234] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12235] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12235] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12234] <... futex resumed>)        = 0
[pid 12234] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12235] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12234] <... futex resumed>)        = 0
[pid 12234] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12235] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12235] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12234] <... futex resumed>)        = 0
[pid 12234] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12234] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12235] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12235] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12234] <... futex resumed>)        = 0
[pid 12235] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12234] exit_group(0 <unfinished ...>
[pid 12235] <... futex resumed>)        = ?
[pid 12234] <... exit_group resumed>)   = ?
[pid 12235] +++ exited with 0 +++
[pid 12234] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12234, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12236
./strace-static-x86_64: Process 12236 attached
[pid 12236] set_robust_list(0x5555874576a0, 24) = 0
[pid 12236] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12236] setpgid(0, 0)               = 0
[pid 12236] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12236] write(3, "1000", 4)         = 4
[pid 12236] close(3)                    = 0
[pid 12236] write(1, "executing program\n", 18executing program
) = 18
[pid 12236] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12236] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12236] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12236] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12236] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12236] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12236] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12237]}, 88) = 12237
./strace-static-x86_64: Process 12237 attached
[pid 12236] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12236] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12236] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12237] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12237] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12237] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12237] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12237] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12236] <... futex resumed>)        = 0
[pid 12236] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12237] <... futex resumed>)        = 0
[pid 12237] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12236] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12237] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12237] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12236] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12236] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12237] <... futex resumed>)        = 0
[pid 12237] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12237] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12237] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12236] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12236] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12237] <... futex resumed>)        = 0
[pid 12237] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12237] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12237] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12236] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12236] exit_group(0)               = ?
[pid 12237] <... futex resumed>)        = ?
[pid 12237] +++ exited with 0 +++
[pid 12236] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12236, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12238 attached
, child_tidptr=0x555587457690) = 12238
[pid 12238] set_robust_list(0x5555874576a0, 24) = 0
[pid 12238] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12238] setpgid(0, 0)               = 0
[pid 12238] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12238] write(3, "1000", 4)         = 4
[pid 12238] close(3)                    = 0
[pid 12238] write(1, "executing program\n", 18executing program
) = 18
[pid 12238] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12238] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12238] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12238] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12238] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12238] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12238] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12239]}, 88) = 12239
./strace-static-x86_64: Process 12239 attached
[pid 12239] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12239] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12239] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12238] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12238] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12239] <... futex resumed>)        = 0
[pid 12239] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12238] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12239] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12239] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12239] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12238] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12238] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12239] <... futex resumed>)        = 0
[pid 12238] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12239] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12239] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12239] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12238] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12238] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12239] <... futex resumed>)        = 0
[pid 12238] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12239] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12239] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12239] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12238] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12238] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12239] <... futex resumed>)        = 0
[pid 12238] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12239] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12239] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12238] <... futex resumed>)        = 0
[pid 12238] exit_group(0)               = ?
[pid 12239] +++ exited with 0 +++
[pid 12238] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12238, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12240 attached
, child_tidptr=0x555587457690) = 12240
[pid 12240] set_robust_list(0x5555874576a0, 24) = 0
[pid 12240] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12240] setpgid(0, 0)               = 0
[pid 12240] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12240] write(3, "1000", 4)         = 4
[pid 12240] close(3)                    = 0
executing program
[pid 12240] write(1, "executing program\n", 18) = 18
[pid 12240] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12240] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12240] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12240] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12240] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12240] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12240] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12241]}, 88) = 12241
./strace-static-x86_64: Process 12241 attached
[pid 12240] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12240] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12240] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12241] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12241] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12241] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12241] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12240] <... futex resumed>)        = 0
[pid 12240] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12240] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12241] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12241] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12240] <... futex resumed>)        = 0
[pid 12240] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12240] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12241] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12241] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12240] <... futex resumed>)        = 0
[pid 12240] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12240] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12241] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12241] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12240] <... futex resumed>)        = 0
[pid 12240] exit_group(0)               = ?
[pid 12241] +++ exited with 0 +++
[pid 12240] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12240, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12242 attached
 <unfinished ...>
[pid 12242] set_robust_list(0x5555874576a0, 24) = 0
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 12242
[pid 12242] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12242] setpgid(0, 0)               = 0
[pid 12242] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12242] write(3, "1000", 4)         = 4
[pid 12242] close(3)                    = 0
[pid 12242] write(1, "executing program\n", 18executing program
) = 18
[pid 12242] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12242] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12242] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12242] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12242] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12242] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12242] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12243 attached
 => {parent_tid=[12243]}, 88) = 12243
[pid 12243] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12243] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12243] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12242] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12242] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12243] <... futex resumed>)        = 0
[pid 12243] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12242] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12243] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12243] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12242] <... futex resumed>)        = 0
[pid 12242] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12242] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12243] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12243] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12242] <... futex resumed>)        = 0
[pid 12242] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12242] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12243] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12243] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12242] <... futex resumed>)        = 0
[pid 12242] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12242] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12243] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12243] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12242] <... futex resumed>)        = 0
[pid 12242] exit_group(0)               = ?
[pid 12243] +++ exited with 0 +++
[pid 12242] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12242, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12244
./strace-static-x86_64: Process 12244 attached
[pid 12244] set_robust_list(0x5555874576a0, 24) = 0
[pid 12244] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12244] setpgid(0, 0)               = 0
[pid 12244] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12244] write(3, "1000", 4)         = 4
[pid 12244] close(3)                    = 0
executing program
[pid 12244] write(1, "executing program\n", 18) = 18
[pid 12244] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12244] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12244] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12244] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12244] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12244] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12244] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12245]}, 88) = 12245
./strace-static-x86_64: Process 12245 attached
[pid 12245] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12244] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12245] <... set_robust_list resumed>) = 0
[pid 12244] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12245] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12244] <... futex resumed>)        = 0
[pid 12245] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12244] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12245] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12245] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12244] <... futex resumed>)        = 0
[pid 12244] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12244] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12245] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12245] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12244] <... futex resumed>)        = 0
[pid 12244] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12244] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12245] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12245] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12244] <... futex resumed>)        = 0
[pid 12244] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12244] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12245] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12245] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12244] <... futex resumed>)        = 0
[pid 12245] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12244] exit_group(0 <unfinished ...>
[pid 12245] <... futex resumed>)        = ?
[pid 12244] <... exit_group resumed>)   = ?
[pid 12245] +++ exited with 0 +++
[pid 12244] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12244, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12246
./strace-static-x86_64: Process 12246 attached
[pid 12246] set_robust_list(0x5555874576a0, 24) = 0
[pid 12246] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12246] setpgid(0, 0)               = 0
[pid 12246] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12246] write(3, "1000", 4)         = 4
[pid 12246] close(3)                    = 0
executing program
[pid 12246] write(1, "executing program\n", 18) = 18
[pid 12246] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12246] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12246] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12246] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12246] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12246] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12246] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12247 attached
 => {parent_tid=[12247]}, 88) = 12247
[pid 12247] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12246] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12247] <... set_robust_list resumed>) = 0
[pid 12246] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12247] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12246] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12247] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12246] <... futex resumed>)        = 0
[pid 12247] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12246] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12247] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12247] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12246] <... futex resumed>)        = 0
[pid 12247] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12246] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12247] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12246] <... futex resumed>)        = 0
[pid 12247] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12246] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12247] <... futex resumed>)        = 0
[pid 12246] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12247] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12246] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12247] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12246] <... futex resumed>)        = 0
[pid 12247] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12246] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12247] <... futex resumed>)        = 0
[pid 12246] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12247] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12246] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12247] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12246] <... futex resumed>)        = 0
[pid 12247] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12246] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12247] <... futex resumed>)        = 0
[pid 12246] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12247] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12246] exit_group(0 <unfinished ...>
[pid 12247] <... futex resumed>)        = ?
[pid 12246] <... exit_group resumed>)   = ?
[pid 12247] +++ exited with 0 +++
[pid 12246] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12246, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12248
./strace-static-x86_64: Process 12248 attached
[pid 12248] set_robust_list(0x5555874576a0, 24) = 0
[pid 12248] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12248] setpgid(0, 0)               = 0
[pid 12248] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12248] write(3, "1000", 4)         = 4
[pid 12248] close(3)                    = 0
executing program
[pid 12248] write(1, "executing program\n", 18) = 18
[pid 12248] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12248] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12248] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12248] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12248] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12248] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12248] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12249 attached
 => {parent_tid=[12249]}, 88) = 12249
[pid 12248] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12248] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12248] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12249] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12249] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12249] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12249] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12248] <... futex resumed>)        = 0
[pid 12249] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12248] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12249] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12248] <... futex resumed>)        = 0
[pid 12249] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12248] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12249] <... futex resumed>)        = 0
[pid 12248] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12249] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12248] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12249] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12248] <... futex resumed>)        = 0
[pid 12249] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12248] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12249] <... futex resumed>)        = 0
[pid 12248] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12249] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12248] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12249] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12248] <... futex resumed>)        = 0
[pid 12249] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12248] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12249] <... futex resumed>)        = 0
[pid 12248] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12249] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12248] exit_group(0 <unfinished ...>
[pid 12249] <... futex resumed>)        = ?
[pid 12248] <... exit_group resumed>)   = ?
[pid 12249] +++ exited with 0 +++
[pid 12248] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12248, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12250
./strace-static-x86_64: Process 12250 attached
[pid 12250] set_robust_list(0x5555874576a0, 24) = 0
[pid 12250] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12250] setpgid(0, 0)               = 0
[pid 12250] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12250] write(3, "1000", 4)         = 4
[pid 12250] close(3)                    = 0
[pid 12250] write(1, "executing program\n", 18executing program
) = 18
[pid 12250] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12250] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12250] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12250] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12250] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12250] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12250] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12251]}, 88) = 12251
./strace-static-x86_64: Process 12251 attached
[pid 12250] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12250] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12250] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12251] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12251] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12251] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12251] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12250] <... futex resumed>)        = 0
[pid 12251] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12250] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12251] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12250] <... futex resumed>)        = 0
[pid 12251] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12250] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12251] <... futex resumed>)        = 0
[pid 12250] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12251] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12250] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12251] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12250] <... futex resumed>)        = 0
[pid 12251] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12250] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12251] <... futex resumed>)        = 0
[pid 12250] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12251] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12250] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12251] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12250] <... futex resumed>)        = 0
[pid 12251] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12250] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12251] <... futex resumed>)        = 0
[pid 12250] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12251] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12250] exit_group(0 <unfinished ...>
[pid 12251] <... futex resumed>)        = ?
[pid 12250] <... exit_group resumed>)   = ?
[pid 12251] +++ exited with 0 +++
[pid 12250] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12250, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12252 attached
, child_tidptr=0x555587457690) = 12252
[pid 12252] set_robust_list(0x5555874576a0, 24) = 0
[pid 12252] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12252] setpgid(0, 0)               = 0
[pid 12252] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12252] write(3, "1000", 4)         = 4
executing program
[pid 12252] close(3)                    = 0
[pid 12252] write(1, "executing program\n", 18) = 18
[pid 12252] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12252] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12252] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12252] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12252] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12252] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12252] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12253 attached
 => {parent_tid=[12253]}, 88) = 12253
[pid 12253] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12252] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12253] <... set_robust_list resumed>) = 0
[pid 12252] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12253] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12252] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12253] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12252] <... futex resumed>)        = 0
[pid 12253] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12252] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12253] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12253] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12252] <... futex resumed>)        = 0
[pid 12253] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12252] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12253] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12252] <... futex resumed>)        = 0
[pid 12253] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12252] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12253] <... futex resumed>)        = 0
[pid 12252] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12253] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12252] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12253] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12252] <... futex resumed>)        = 0
[pid 12253] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12252] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12253] <... futex resumed>)        = 0
[pid 12252] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12253] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12252] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12252] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12253] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12253] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12252] <... futex resumed>)        = 0
[pid 12253] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12252] exit_group(0 <unfinished ...>
[pid 12253] <... futex resumed>)        = ?
[pid 12252] <... exit_group resumed>)   = ?
[pid 12253] +++ exited with 0 +++
[pid 12252] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12252, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12254 attached
 <unfinished ...>
[pid 12254] set_robust_list(0x5555874576a0, 24) = 0
[pid 12254] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12254] setpgid(0, 0)               = 0
[pid 12254] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 12254
[pid 12254] <... openat resumed>)       = 3
[pid 12254] write(3, "1000", 4)         = 4
[pid 12254] close(3)                    = 0
executing program
[pid 12254] write(1, "executing program\n", 18) = 18
[pid 12254] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12254] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12254] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12254] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12254] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12254] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12254] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12255]}, 88) = 12255
./strace-static-x86_64: Process 12255 attached
[pid 12254] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12254] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12254] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12255] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12255] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12255] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12255] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12254] <... futex resumed>)        = 0
[pid 12255] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12254] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12255] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12254] <... futex resumed>)        = 0
[pid 12255] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12254] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12255] <... futex resumed>)        = 0
[pid 12254] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12255] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12254] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12255] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12254] <... futex resumed>)        = 0
[pid 12255] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12254] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12255] <... futex resumed>)        = 0
[pid 12254] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12255] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12254] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12254] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12255] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12255] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12254] <... futex resumed>)        = 0
[pid 12255] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12254] exit_group(0 <unfinished ...>
[pid 12255] <... futex resumed>)        = ?
[pid 12254] <... exit_group resumed>)   = ?
[pid 12255] +++ exited with 0 +++
[pid 12254] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12254, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12256
./strace-static-x86_64: Process 12256 attached
[pid 12256] set_robust_list(0x5555874576a0, 24) = 0
[pid 12256] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12256] setpgid(0, 0)               = 0
[pid 12256] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12256] write(3, "1000", 4)         = 4
[pid 12256] close(3)                    = 0
executing program
[pid 12256] write(1, "executing program\n", 18) = 18
[pid 12256] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12256] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12256] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12256] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12256] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12256] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12256] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12257 attached
 <unfinished ...>
[pid 12257] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12257] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12257] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12256] <... clone3 resumed> => {parent_tid=[12257]}, 88) = 12257
[pid 12256] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12256] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12257] <... futex resumed>)        = 0
[pid 12257] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12257] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12257] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12256] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12256] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12257] <... futex resumed>)        = 0
[pid 12257] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12257] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12257] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12256] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12256] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12257] <... futex resumed>)        = 0
[pid 12256] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12257] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12257] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12257] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12256] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12256] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12257] <... futex resumed>)        = 0
[pid 12256] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12257] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12257] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12257] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12256] <... futex resumed>)        = 0
[pid 12256] exit_group(0)               = ?
[pid 12257] <... futex resumed>)        = ?
[pid 12257] +++ exited with 0 +++
[pid 12256] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12256, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12258 attached
, child_tidptr=0x555587457690) = 12258
[pid 12258] set_robust_list(0x5555874576a0, 24) = 0
[pid 12258] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12258] setpgid(0, 0)               = 0
[pid 12258] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12258] write(3, "1000", 4)         = 4
[pid 12258] close(3)                    = 0
executing program
[pid 12258] write(1, "executing program\n", 18) = 18
[pid 12258] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12258] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12258] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12258] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12258] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12258] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12258] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12259]}, 88) = 12259
[pid 12258] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12258] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12258] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12259 attached
 <unfinished ...>
[pid 12259] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12259] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12259] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12259] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12258] <... futex resumed>)        = 0
[pid 12258] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12258] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12259] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12259] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12258] <... futex resumed>)        = 0
[pid 12258] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12258] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12259] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12259] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12258] <... futex resumed>)        = 0
[pid 12258] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12258] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12259] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12259] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12258] <... futex resumed>)        = 0
[pid 12258] exit_group(0)               = ?
[pid 12259] +++ exited with 0 +++
[pid 12258] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12258, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12260 attached
, child_tidptr=0x555587457690) = 12260
[pid 12260] set_robust_list(0x5555874576a0, 24) = 0
[pid 12260] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12260] setpgid(0, 0)               = 0
[pid 12260] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12260] write(3, "1000", 4)         = 4
[pid 12260] close(3)                    = 0
[pid 12260] write(1, "executing program\n", 18executing program
) = 18
[pid 12260] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12260] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12260] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12260] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12260] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12260] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12260] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12261 attached
 => {parent_tid=[12261]}, 88) = 12261
[pid 12260] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12260] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12260] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12261] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12261] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12261] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12261] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12261] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12260] <... futex resumed>)        = 0
[pid 12260] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12260] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12261] <... futex resumed>)        = 0
[pid 12261] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12261] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12260] <... futex resumed>)        = 0
[pid 12260] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12260] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12261] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12261] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12260] <... futex resumed>)        = 0
[pid 12260] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12260] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12261] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12261] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12260] <... futex resumed>)        = 0
[pid 12260] exit_group(0 <unfinished ...>
[pid 12261] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12260] <... exit_group resumed>)   = ?
[pid 12261] <... futex resumed>)        = ?
[pid 12261] +++ exited with 0 +++
[pid 12260] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12260, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12262
./strace-static-x86_64: Process 12262 attached
[pid 12262] set_robust_list(0x5555874576a0, 24) = 0
[pid 12262] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12262] setpgid(0, 0)               = 0
[pid 12262] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12262] write(3, "1000", 4)         = 4
[pid 12262] close(3)                    = 0
executing program
[pid 12262] write(1, "executing program\n", 18) = 18
[pid 12262] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12262] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12262] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12262] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12262] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12262] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12262] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12263]}, 88) = 12263
[pid 12262] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12262] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12262] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12263 attached
 <unfinished ...>
[pid 12263] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12263] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12263] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12263] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12262] <... futex resumed>)        = 0
[pid 12262] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12262] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12263] <... futex resumed>)        = 1
[pid 12263] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12263] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12262] <... futex resumed>)        = 0
[pid 12262] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12262] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12263] <... futex resumed>)        = 1
[pid 12263] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12263] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12262] <... futex resumed>)        = 0
[pid 12262] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12262] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12263] <... futex resumed>)        = 1
[pid 12263] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12263] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12262] <... futex resumed>)        = 0
[pid 12262] exit_group(0)               = ?
[pid 12263] <... futex resumed>)        = ?
[pid 12263] +++ exited with 0 +++
[pid 12262] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12262, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12264
./strace-static-x86_64: Process 12264 attached
[pid 12264] set_robust_list(0x5555874576a0, 24) = 0
[pid 12264] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12264] setpgid(0, 0)               = 0
[pid 12264] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12264] write(3, "1000", 4)         = 4
[pid 12264] close(3)                    = 0
executing program
[pid 12264] write(1, "executing program\n", 18) = 18
[pid 12264] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12264] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12264] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12264] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12264] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12264] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12264] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12265 attached
 => {parent_tid=[12265]}, 88) = 12265
[pid 12265] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12264] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12265] <... set_robust_list resumed>) = 0
[pid 12264] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12265] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12264] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12265] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12264] <... futex resumed>)        = 0
[pid 12265] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12264] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12265] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12265] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12264] <... futex resumed>)        = 0
[pid 12264] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12265] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12264] <... futex resumed>)        = 0
[pid 12265] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12264] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12265] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12264] <... futex resumed>)        = 0
[pid 12264] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12264] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12265] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12265] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12264] <... futex resumed>)        = 0
[pid 12264] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12264] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12265] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12265] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12264] <... futex resumed>)        = 0
[pid 12264] exit_group(0)               = ?
[pid 12265] +++ exited with 0 +++
[pid 12264] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12264, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12266
./strace-static-x86_64: Process 12266 attached
[pid 12266] set_robust_list(0x5555874576a0, 24) = 0
[pid 12266] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12266] setpgid(0, 0)               = 0
[pid 12266] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12266] write(3, "1000", 4)         = 4
[pid 12266] close(3)                    = 0
executing program
[pid 12266] write(1, "executing program\n", 18) = 18
[pid 12266] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12266] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12266] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12266] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12266] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12266] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12266] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12267]}, 88) = 12267
[pid 12266] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12266] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12266] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12267 attached
 <unfinished ...>
[pid 12267] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12267] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12267] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12267] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12266] <... futex resumed>)        = 0
[pid 12266] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12266] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12267] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12267] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12266] <... futex resumed>)        = 0
[pid 12266] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12266] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12267] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12267] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12266] <... futex resumed>)        = 0
[pid 12266] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12266] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12267] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12267] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12266] <... futex resumed>)        = 0
[pid 12266] exit_group(0)               = ?
[pid 12267] +++ exited with 0 +++
[pid 12266] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12266, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12268
./strace-static-x86_64: Process 12268 attached
[pid 12268] set_robust_list(0x5555874576a0, 24) = 0
[pid 12268] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12268] setpgid(0, 0)               = 0
[pid 12268] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
executing program
[pid 12268] write(3, "1000", 4)         = 4
[pid 12268] close(3)                    = 0
[pid 12268] write(1, "executing program\n", 18) = 18
[pid 12268] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12268] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12268] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12268] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12268] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12268] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12268] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12269]}, 88) = 12269
./strace-static-x86_64: Process 12269 attached
[pid 12268] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12268] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12268] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12269] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12269] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12269] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12269] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12268] <... futex resumed>)        = 0
[pid 12268] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12268] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12269] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12269] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12268] <... futex resumed>)        = 0
[pid 12268] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12268] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12269] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12269] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12268] <... futex resumed>)        = 0
[pid 12268] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12268] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12269] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12269] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12268] <... futex resumed>)        = 0
[pid 12268] exit_group(0)               = ?
[pid 12269] +++ exited with 0 +++
[pid 12268] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12268, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12270
./strace-static-x86_64: Process 12270 attached
[pid 12270] set_robust_list(0x5555874576a0, 24) = 0
[pid 12270] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12270] setpgid(0, 0)               = 0
[pid 12270] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12270] write(3, "1000", 4)         = 4
[pid 12270] close(3)                    = 0
[pid 12270] write(1, "executing program\n", 18executing program
) = 18
[pid 12270] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12270] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12270] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12270] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12270] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12270] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12270] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12271 attached
 <unfinished ...>
[pid 12271] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12271] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12271] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12270] <... clone3 resumed> => {parent_tid=[12271]}, 88) = 12271
[pid 12270] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12270] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12271] <... futex resumed>)        = 0
[pid 12271] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12270] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12271] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12271] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12271] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12270] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12270] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12271] <... futex resumed>)        = 0
[pid 12271] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12271] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12271] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12270] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12270] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12271] <... futex resumed>)        = 0
[pid 12271] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12271] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12271] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12270] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12270] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12271] <... futex resumed>)        = 0
[pid 12271] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12270] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12271] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12271] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12271] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12270] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12270] exit_group(0)               = ?
[pid 12271] <... futex resumed>)        = ?
[pid 12271] +++ exited with 0 +++
[pid 12270] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12270, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12272 attached
, child_tidptr=0x555587457690) = 12272
[pid 12272] set_robust_list(0x5555874576a0, 24) = 0
[pid 12272] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12272] setpgid(0, 0)               = 0
[pid 12272] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12272] write(3, "1000", 4)         = 4
[pid 12272] close(3)                    = 0
executing program
[pid 12272] write(1, "executing program\n", 18) = 18
[pid 12272] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12272] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12272] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12272] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12272] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12272] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12272] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12273 attached
 => {parent_tid=[12273]}, 88) = 12273
[pid 12272] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12272] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12272] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12273] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12273] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12273] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12273] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12272] <... futex resumed>)        = 0
[pid 12272] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12272] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12273] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12273] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12272] <... futex resumed>)        = 0
[pid 12272] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12272] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12273] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12273] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12273] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12272] <... futex resumed>)        = 0
[pid 12272] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12272] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12273] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12273] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12273] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12272] <... futex resumed>)        = 0
[pid 12272] exit_group(0)               = ?
[pid 12273] +++ exited with 0 +++
[pid 12272] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12272, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12274
./strace-static-x86_64: Process 12274 attached
[pid 12274] set_robust_list(0x5555874576a0, 24) = 0
[pid 12274] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12274] setpgid(0, 0)               = 0
[pid 12274] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12274] write(3, "1000", 4)         = 4
[pid 12274] close(3)                    = 0
[pid 12274] write(1, "executing program\n", 18executing program
) = 18
[pid 12274] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12274] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12274] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12274] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12274] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12274] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12274] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12275 attached
 => {parent_tid=[12275]}, 88) = 12275
[pid 12275] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12275] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12275] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12274] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12274] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12275] <... futex resumed>)        = 0
[pid 12275] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12274] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12275] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12275] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12274] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12274] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12275] <... futex resumed>)        = 0
[pid 12275] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12275] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12275] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12274] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12274] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12275] <... futex resumed>)        = 0
[pid 12275] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12275] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12274] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12275] <... futex resumed>)        = 0
[pid 12274] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12275] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12274] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12274] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12275] <... futex resumed>)        = 0
[pid 12275] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12275] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12274] <... futex resumed>)        = 0
[pid 12274] exit_group(0)               = ?
[pid 12275] +++ exited with 0 +++
[pid 12274] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12274, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12276
./strace-static-x86_64: Process 12276 attached
[pid 12276] set_robust_list(0x5555874576a0, 24) = 0
[pid 12276] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12276] setpgid(0, 0)               = 0
[pid 12276] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12276] write(3, "1000", 4)         = 4
[pid 12276] close(3)                    = 0
executing program
[pid 12276] write(1, "executing program\n", 18) = 18
[pid 12276] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12276] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12276] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12276] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12276] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12276] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12276] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12277 attached
 => {parent_tid=[12277]}, 88) = 12277
[pid 12276] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12276] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12276] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12277] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12277] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12277] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12277] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12276] <... futex resumed>)        = 0
[pid 12276] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12276] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12277] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12277] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12276] <... futex resumed>)        = 0
[pid 12276] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12276] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12277] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12277] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12276] <... futex resumed>)        = 0
[pid 12276] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12276] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12277] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12277] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12276] <... futex resumed>)        = 0
[pid 12276] exit_group(0)               = ?
[pid 12277] +++ exited with 0 +++
[pid 12276] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12276, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12278 attached
, child_tidptr=0x555587457690) = 12278
[pid 12278] set_robust_list(0x5555874576a0, 24) = 0
[pid 12278] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12278] setpgid(0, 0)               = 0
[pid 12278] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12278] write(3, "1000", 4)         = 4
[pid 12278] close(3)                    = 0
executing program
[pid 12278] write(1, "executing program\n", 18) = 18
[pid 12278] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12278] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12278] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12278] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12278] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12278] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12278] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12279]}, 88) = 12279
[pid 12278] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12278] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12278] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12279 attached
 <unfinished ...>
[pid 12279] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12279] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12279] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12279] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12278] <... futex resumed>)        = 0
[pid 12278] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12278] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12279] <... futex resumed>)        = 1
[pid 12279] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12279] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12278] <... futex resumed>)        = 0
[pid 12278] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12278] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12279] <... futex resumed>)        = 1
[pid 12279] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12279] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12278] <... futex resumed>)        = 0
[pid 12278] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12278] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12279] <... futex resumed>)        = 1
[pid 12279] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12279] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12278] <... futex resumed>)        = 0
[pid 12278] exit_group(0)               = ?
[pid 12279] <... futex resumed>)        = ?
[pid 12279] +++ exited with 0 +++
[pid 12278] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12278, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12280
./strace-static-x86_64: Process 12280 attached
[pid 12280] set_robust_list(0x5555874576a0, 24) = 0
[pid 12280] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12280] setpgid(0, 0)               = 0
[pid 12280] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12280] write(3, "1000", 4)         = 4
[pid 12280] close(3)                    = 0
executing program
[pid 12280] write(1, "executing program\n", 18) = 18
[pid 12280] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12280] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12280] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12280] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12280] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12280] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12280] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12281 attached
 => {parent_tid=[12281]}, 88) = 12281
[pid 12280] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12281] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12280] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12281] <... set_robust_list resumed>) = 0
[pid 12280] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12281] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12280] <... futex resumed>)        = 0
[pid 12281] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12280] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12281] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12281] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12280] <... futex resumed>)        = 0
[pid 12280] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12280] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12281] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12281] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12280] <... futex resumed>)        = 0
[pid 12280] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12280] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12281] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12281] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12280] <... futex resumed>)        = 0
[pid 12280] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12280] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12281] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12281] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12280] <... futex resumed>)        = 0
[pid 12280] exit_group(0)               = ?
[pid 12281] +++ exited with 0 +++
[pid 12280] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12280, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12282
./strace-static-x86_64: Process 12282 attached
[pid 12282] set_robust_list(0x5555874576a0, 24) = 0
[pid 12282] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12282] setpgid(0, 0)               = 0
[pid 12282] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12282] write(3, "1000", 4)         = 4
[pid 12282] close(3)                    = 0
[pid 12282] write(1, "executing program\n", 18executing program
) = 18
[pid 12282] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12282] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12282] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12282] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12282] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12282] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12282] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12283]}, 88) = 12283
./strace-static-x86_64: Process 12283 attached
[pid 12283] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12283] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12283] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12282] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12282] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12283] <... futex resumed>)        = 0
[pid 12283] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12282] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12283] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12283] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12283] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12282] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12282] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12283] <... futex resumed>)        = 0
[pid 12283] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12282] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12283] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12283] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12282] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12282] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12283] <... futex resumed>)        = 0
[pid 12283] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12283] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12283] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12282] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12282] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12283] <... futex resumed>)        = 0
[pid 12283] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12283] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12283] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12282] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12282] exit_group(0)               = ?
[pid 12283] <... futex resumed>)        = ?
[pid 12283] +++ exited with 0 +++
[pid 12282] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12282, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12284
./strace-static-x86_64: Process 12284 attached
[pid 12284] set_robust_list(0x5555874576a0, 24) = 0
[pid 12284] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12284] setpgid(0, 0)               = 0
[pid 12284] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12284] write(3, "1000", 4)         = 4
executing program
[pid 12284] close(3)                    = 0
[pid 12284] write(1, "executing program\n", 18) = 18
[pid 12284] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12284] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12284] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12284] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12284] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12284] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12284] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12285]}, 88) = 12285
./strace-static-x86_64: Process 12285 attached
[pid 12285] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12285] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12285] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12284] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12284] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12285] <... futex resumed>)        = 0
[pid 12285] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12285] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12285] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12284] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12284] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12285] <... futex resumed>)        = 0
[pid 12285] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12285] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12285] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12284] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12284] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12285] <... futex resumed>)        = 0
[pid 12285] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12285] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12285] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12284] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12284] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12285] <... futex resumed>)        = 0
[pid 12285] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12285] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12285] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12284] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12284] exit_group(0)               = ?
[pid 12285] <... futex resumed>)        = ?
[pid 12285] +++ exited with 0 +++
[pid 12284] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12284, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12286
./strace-static-x86_64: Process 12286 attached
[pid 12286] set_robust_list(0x5555874576a0, 24) = 0
[pid 12286] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12286] setpgid(0, 0)               = 0
[pid 12286] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12286] write(3, "1000", 4)         = 4
[pid 12286] close(3)                    = 0
[pid 12286] write(1, "executing program\n", 18executing program
) = 18
[pid 12286] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12286] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12286] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12286] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12286] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12286] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12286] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12287 attached
 => {parent_tid=[12287]}, 88) = 12287
[pid 12287] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12287] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12287] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12286] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12286] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12287] <... futex resumed>)        = 0
[pid 12287] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12287] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12287] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12286] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12286] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12287] <... futex resumed>)        = 0
[pid 12287] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12287] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12287] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12286] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12286] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12287] <... futex resumed>)        = 0
[pid 12287] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12287] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12287] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12286] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12286] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12287] <... futex resumed>)        = 0
[pid 12287] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12287] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12287] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12286] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12286] exit_group(0 <unfinished ...>
[pid 12287] <... futex resumed>)        = ?
[pid 12286] <... exit_group resumed>)   = ?
[pid 12287] +++ exited with 0 +++
[pid 12286] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12286, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12288
./strace-static-x86_64: Process 12288 attached
[pid 12288] set_robust_list(0x5555874576a0, 24) = 0
[pid 12288] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12288] setpgid(0, 0)               = 0
[pid 12288] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12288] write(3, "1000", 4)         = 4
[pid 12288] close(3)                    = 0
[pid 12288] write(1, "executing program\n", 18executing program
) = 18
[pid 12288] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12288] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12288] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12288] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12288] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12288] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12288] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12289 attached
 <unfinished ...>
[pid 12289] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12288] <... clone3 resumed> => {parent_tid=[12289]}, 88) = 12289
[pid 12289] <... set_robust_list resumed>) = 0
[pid 12289] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12289] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12288] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12288] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12289] <... futex resumed>)        = 0
[pid 12288] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12289] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12289] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12289] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12288] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12288] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12289] <... futex resumed>)        = 0
[pid 12289] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12289] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12289] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12288] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12288] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12289] <... futex resumed>)        = 0
[pid 12288] <... futex resumed>)        = 1
[pid 12289] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12289] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12289] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12288] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12288] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12289] <... futex resumed>)        = 0
[pid 12288] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12289] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12289] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12288] <... futex resumed>)        = 0
[pid 12289] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12288] exit_group(0 <unfinished ...>
[pid 12289] <... futex resumed>)        = ?
[pid 12288] <... exit_group resumed>)   = ?
[pid 12289] +++ exited with 0 +++
[pid 12288] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12288, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12290 attached
, child_tidptr=0x555587457690) = 12290
[pid 12290] set_robust_list(0x5555874576a0, 24) = 0
[pid 12290] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12290] setpgid(0, 0)               = 0
[pid 12290] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12290] write(3, "1000", 4)         = 4
[pid 12290] close(3)                    = 0
executing program
[pid 12290] write(1, "executing program\n", 18) = 18
[pid 12290] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12290] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12290] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12290] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12290] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12290] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12290] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12291 attached
 => {parent_tid=[12291]}, 88) = 12291
[pid 12290] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12290] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12290] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12291] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12291] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12291] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12291] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12290] <... futex resumed>)        = 0
[pid 12290] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12291] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12290] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12291] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12291] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12290] <... futex resumed>)        = 0
[pid 12291] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12290] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12291] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12290] <... futex resumed>)        = 0
[pid 12291] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12290] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12291] <... futex resumed>)        = 0
[pid 12290] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12291] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12290] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12291] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12290] <... futex resumed>)        = 0
[pid 12291] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12290] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12291] <... futex resumed>)        = 0
[pid 12290] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12291] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12290] exit_group(0 <unfinished ...>
[pid 12291] <... futex resumed>)        = ?
[pid 12290] <... exit_group resumed>)   = ?
[pid 12291] +++ exited with 0 +++
[pid 12290] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12290, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12292
./strace-static-x86_64: Process 12292 attached
[pid 12292] set_robust_list(0x5555874576a0, 24) = 0
[pid 12292] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12292] setpgid(0, 0)               = 0
[pid 12292] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12292] write(3, "1000", 4)         = 4
[pid 12292] close(3)                    = 0
[pid 12292] write(1, "executing program\n", 18executing program
) = 18
[pid 12292] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12292] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12292] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12292] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12292] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12292] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12292] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12293 attached
 <unfinished ...>
[pid 12293] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12293] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12293] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12292] <... clone3 resumed> => {parent_tid=[12293]}, 88) = 12293
[pid 12292] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12292] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12293] <... futex resumed>)        = 0
[pid 12293] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12293] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12293] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12292] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12292] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12293] <... futex resumed>)        = 0
[pid 12293] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12293] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12293] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12292] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12292] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12293] <... futex resumed>)        = 0
[pid 12293] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12293] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12293] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12292] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12292] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12293] <... futex resumed>)        = 0
[pid 12293] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12293] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12293] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12292] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12292] exit_group(0)               = ?
[pid 12293] <... futex resumed>)        = ?
[pid 12293] +++ exited with 0 +++
[pid 12292] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12292, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12294 attached
, child_tidptr=0x555587457690) = 12294
[pid 12294] set_robust_list(0x5555874576a0, 24) = 0
[pid 12294] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12294] setpgid(0, 0)               = 0
[pid 12294] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12294] write(3, "1000", 4)         = 4
[pid 12294] close(3)                    = 0
executing program
[pid 12294] write(1, "executing program\n", 18) = 18
[pid 12294] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12294] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12294] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12294] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12294] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12294] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12294] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12295]}, 88) = 12295
[pid 12294] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12294] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12294] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12295 attached
 <unfinished ...>
[pid 12295] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12295] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12295] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12295] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12294] <... futex resumed>)        = 0
[pid 12294] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12294] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12295] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12295] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12294] <... futex resumed>)        = 0
[pid 12294] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12294] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12295] <... futex resumed>)        = 1
[pid 12295] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12295] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12294] <... futex resumed>)        = 0
[pid 12294] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12295] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12294] <... futex resumed>)        = 0
[pid 12294] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12295] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12295] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12294] <... futex resumed>)        = 0
[pid 12294] exit_group(0)               = ?
[pid 12295] +++ exited with 0 +++
[pid 12294] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12294, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12296
./strace-static-x86_64: Process 12296 attached
[pid 12296] set_robust_list(0x5555874576a0, 24) = 0
[pid 12296] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12296] setpgid(0, 0)               = 0
[pid 12296] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12296] write(3, "1000", 4)         = 4
[pid 12296] close(3)                    = 0
[pid 12296] write(1, "executing program\n", 18executing program
) = 18
[pid 12296] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12296] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12296] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12296] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12296] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12296] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12296] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12297 attached
 => {parent_tid=[12297]}, 88) = 12297
[pid 12297] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12297] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12297] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12296] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12296] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12297] <... futex resumed>)        = 0
[pid 12296] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12297] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12297] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12296] <... futex resumed>)        = 0
[pid 12296] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12296] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12297] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12297] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12296] <... futex resumed>)        = 0
[pid 12296] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12296] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12297] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12297] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12296] <... futex resumed>)        = 0
[pid 12296] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12296] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12297] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12297] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12296] <... futex resumed>)        = 0
[pid 12296] exit_group(0)               = ?
[pid 12297] +++ exited with 0 +++
[pid 12296] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12296, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12298
./strace-static-x86_64: Process 12298 attached
[pid 12298] set_robust_list(0x5555874576a0, 24) = 0
[pid 12298] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12298] setpgid(0, 0)               = 0
[pid 12298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12298] write(3, "1000", 4)         = 4
executing program
[pid 12298] close(3)                    = 0
[pid 12298] write(1, "executing program\n", 18) = 18
[pid 12298] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12298] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12298] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12298] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12298] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12298] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12298] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12299]}, 88) = 12299
./strace-static-x86_64: Process 12299 attached
[pid 12298] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12299] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12298] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12298] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12298] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12299] <... set_robust_list resumed>) = 0
[pid 12299] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12299] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12299] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12299] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12298] <... futex resumed>)        = 0
[pid 12298] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12299] <... futex resumed>)        = 0
[pid 12299] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12298] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12299] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12299] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12299] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12298] <... futex resumed>)        = 0
[pid 12298] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12298] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12299] <... futex resumed>)        = 0
[pid 12299] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12299] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12298] <... futex resumed>)        = 0
[pid 12298] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12298] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12299] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12299] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12298] <... futex resumed>)        = 0
[pid 12298] exit_group(0)               = ?
[pid 12299] +++ exited with 0 +++
[pid 12298] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12298, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12300
./strace-static-x86_64: Process 12300 attached
[pid 12300] set_robust_list(0x5555874576a0, 24) = 0
[pid 12300] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12300] setpgid(0, 0)               = 0
[pid 12300] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12300] write(3, "1000", 4)         = 4
[pid 12300] close(3)                    = 0
executing program
[pid 12300] write(1, "executing program\n", 18) = 18
[pid 12300] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12300] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12300] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12300] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12300] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12300] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12300] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12301 attached
 => {parent_tid=[12301]}, 88) = 12301
[pid 12300] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12300] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12300] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12301] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12301] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12301] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12301] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12300] <... futex resumed>)        = 0
[pid 12300] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12300] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12301] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12301] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12300] <... futex resumed>)        = 0
[pid 12300] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12300] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12301] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12301] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12300] <... futex resumed>)        = 0
[pid 12300] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12300] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12301] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12301] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12300] <... futex resumed>)        = 0
[pid 12300] exit_group(0)               = ?
[pid 12301] +++ exited with 0 +++
[pid 12300] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12300, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12302
./strace-static-x86_64: Process 12302 attached
[pid 12302] set_robust_list(0x5555874576a0, 24) = 0
[pid 12302] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12302] setpgid(0, 0)               = 0
[pid 12302] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12302] write(3, "1000", 4)         = 4
[pid 12302] close(3)                    = 0
[pid 12302] write(1, "executing program\n", 18executing program
) = 18
[pid 12302] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12302] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12302] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12302] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12302] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12302] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12302] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12303 attached
 => {parent_tid=[12303]}, 88) = 12303
[pid 12303] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12303] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12303] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12302] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12302] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12303] <... futex resumed>)        = 0
[pid 12303] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12303] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12303] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12302] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12302] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12303] <... futex resumed>)        = 0
[pid 12303] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12303] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12303] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12302] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12302] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12303] <... futex resumed>)        = 0
[pid 12303] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12303] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12303] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12302] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12302] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12303] <... futex resumed>)        = 0
[pid 12303] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12302] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12303] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12303] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12303] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12302] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12302] exit_group(0)               = ?
[pid 12303] <... futex resumed>)        = ?
[pid 12303] +++ exited with 0 +++
[pid 12302] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12302, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12304
./strace-static-x86_64: Process 12304 attached
[pid 12304] set_robust_list(0x5555874576a0, 24) = 0
[pid 12304] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12304] setpgid(0, 0)               = 0
[pid 12304] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12304] write(3, "1000", 4)         = 4
[pid 12304] close(3)                    = 0
[pid 12304] write(1, "executing program\n", 18executing program
) = 18
[pid 12304] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12304] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12304] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12304] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12304] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12304] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12304] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12305 attached
 => {parent_tid=[12305]}, 88) = 12305
[pid 12304] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12304] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12304] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12305] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12305] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12305] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12305] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12304] <... futex resumed>)        = 0
[pid 12304] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12304] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12305] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12305] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12304] <... futex resumed>)        = 0
[pid 12304] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12304] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12305] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12305] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12304] <... futex resumed>)        = 0
[pid 12304] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12304] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12305] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12305] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12304] <... futex resumed>)        = 0
[pid 12304] exit_group(0)               = ?
[pid 12305] +++ exited with 0 +++
[pid 12304] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12304, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12306
./strace-static-x86_64: Process 12306 attached
[pid 12306] set_robust_list(0x5555874576a0, 24) = 0
[pid 12306] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12306] setpgid(0, 0)               = 0
[pid 12306] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12306] write(3, "1000", 4)         = 4
[pid 12306] close(3)                    = 0
[pid 12306] write(1, "executing program\n", 18executing program
) = 18
[pid 12306] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12306] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12306] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12306] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12306] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12306] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12306] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12307 attached
 => {parent_tid=[12307]}, 88) = 12307
[pid 12307] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12307] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12307] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12306] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12306] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12307] <... futex resumed>)        = 0
[pid 12307] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12307] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12307] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12306] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12306] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12307] <... futex resumed>)        = 0
[pid 12307] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12306] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12307] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12307] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12306] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12306] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12307] <... futex resumed>)        = 0
[pid 12307] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12306] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12307] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12307] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12306] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12306] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12307] <... futex resumed>)        = 0
[pid 12306] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12307] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12307] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12307] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12306] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12306] exit_group(0)               = ?
[pid 12307] <... futex resumed>)        = ?
[pid 12307] +++ exited with 0 +++
[pid 12306] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12306, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12308 attached
, child_tidptr=0x555587457690) = 12308
[pid 12308] set_robust_list(0x5555874576a0, 24) = 0
[pid 12308] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12308] setpgid(0, 0)               = 0
[pid 12308] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12308] write(3, "1000", 4executing program
)         = 4
[pid 12308] close(3)                    = 0
[pid 12308] write(1, "executing program\n", 18) = 18
[pid 12308] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12308] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12308] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12308] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12308] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12308] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12308] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12309 attached
 => {parent_tid=[12309]}, 88) = 12309
[pid 12309] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12308] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12309] <... set_robust_list resumed>) = 0
[pid 12308] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12309] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12308] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12309] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12308] <... futex resumed>)        = 0
[pid 12309] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12308] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12309] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12309] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12308] <... futex resumed>)        = 0
[pid 12308] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12308] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12309] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12309] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12308] <... futex resumed>)        = 0
[pid 12308] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12308] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12309] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12309] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12308] <... futex resumed>)        = 0
[pid 12309] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12308] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12308] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12309] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12309] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12309] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12308] <... futex resumed>)        = 0
[pid 12309] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12308] exit_group(0)               = ?
[pid 12309] <... futex resumed>)        = ?
[pid 12309] +++ exited with 0 +++
[pid 12308] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12308, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12310
./strace-static-x86_64: Process 12310 attached
[pid 12310] set_robust_list(0x5555874576a0, 24) = 0
[pid 12310] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12310] setpgid(0, 0)               = 0
[pid 12310] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12310] write(3, "1000", 4)         = 4
[pid 12310] close(3)                    = 0
[pid 12310] write(1, "executing program\n", 18executing program
) = 18
[pid 12310] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12310] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12310] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12310] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12310] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12310] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12310] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12311 attached
 <unfinished ...>
[pid 12311] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12311] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12311] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12310] <... clone3 resumed> => {parent_tid=[12311]}, 88) = 12311
[pid 12310] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12310] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12311] <... futex resumed>)        = 0
[pid 12311] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12311] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12311] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12310] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12310] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12311] <... futex resumed>)        = 0
[pid 12311] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12311] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12311] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12310] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12310] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12311] <... futex resumed>)        = 0
[pid 12311] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12311] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12311] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12310] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12310] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12311] <... futex resumed>)        = 0
[pid 12311] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12311] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12311] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12310] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12310] exit_group(0)               = ?
[pid 12311] <... futex resumed>)        = ?
[pid 12311] +++ exited with 0 +++
[pid 12310] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12310, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12312
./strace-static-x86_64: Process 12312 attached
[pid 12312] set_robust_list(0x5555874576a0, 24) = 0
[pid 12312] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12312] setpgid(0, 0)               = 0
[pid 12312] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12312] write(3, "1000", 4)         = 4
[pid 12312] close(3executing program
)                    = 0
[pid 12312] write(1, "executing program\n", 18) = 18
[pid 12312] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12312] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12312] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12312] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12312] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12312] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12312] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12313 attached
 => {parent_tid=[12313]}, 88) = 12313
[pid 12313] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12312] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12313] <... set_robust_list resumed>) = 0
[pid 12312] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12312] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12313] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12312] <... futex resumed>)        = 0
[pid 12313] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12312] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12313] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12313] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12312] <... futex resumed>)        = 0
[pid 12312] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12312] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12313] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12313] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12312] <... futex resumed>)        = 0
[pid 12312] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12312] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12313] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12313] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12312] <... futex resumed>)        = 0
[pid 12312] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12312] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12313] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12313] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12312] <... futex resumed>)        = 0
[pid 12312] exit_group(0)               = ?
[pid 12313] +++ exited with 0 +++
[pid 12312] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12312, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12314 attached
 <unfinished ...>
[pid 12314] set_robust_list(0x5555874576a0, 24) = 0
[pid 12314] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12314] setpgid(0, 0)               = 0
[pid 12314] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12314] write(3, "1000", 4)         = 4
executing program
[pid 12314] close(3)                    = 0
[pid 12314] write(1, "executing program\n", 18) = 18
[pid 12314] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12314] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12314] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12314] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12314] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12314] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12314] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12315]}, 88) = 12315
[pid 12314] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12314] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12314] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12315 attached
 <unfinished ...>
[pid 12315] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12315] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12315] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 12314
[pid 12315] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12314] <... futex resumed>)        = 0
[pid 12314] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12314] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12315] <... futex resumed>)        = 1
[pid 12315] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12315] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12314] <... futex resumed>)        = 0
[pid 12314] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12314] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12315] <... futex resumed>)        = 1
[pid 12315] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12315] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12314] <... futex resumed>)        = 0
[pid 12314] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12314] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12315] <... futex resumed>)        = 1
[pid 12315] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12315] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12314] <... futex resumed>)        = 0
[pid 12314] exit_group(0)               = ?
[pid 12315] <... futex resumed>)        = ?
[pid 12315] +++ exited with 0 +++
[pid 12314] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12314, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12316
./strace-static-x86_64: Process 12316 attached
[pid 12316] set_robust_list(0x5555874576a0, 24) = 0
[pid 12316] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12316] setpgid(0, 0)               = 0
[pid 12316] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12316] write(3, "1000", 4)         = 4
[pid 12316] close(3executing program
)                    = 0
[pid 12316] write(1, "executing program\n", 18) = 18
[pid 12316] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12316] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12316] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12316] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12316] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12316] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12316] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12317]}, 88) = 12317
[pid 12316] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12316] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12316] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12317 attached
 <unfinished ...>
[pid 12317] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12317] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12317] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12317] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12316] <... futex resumed>)        = 0
[pid 12316] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12316] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12317] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12317] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12316] <... futex resumed>)        = 0
[pid 12316] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12316] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12317] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12317] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12316] <... futex resumed>)        = 0
[pid 12316] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12316] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12317] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12317] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12316] <... futex resumed>)        = 0
[pid 12316] exit_group(0)               = ?
[pid 12317] +++ exited with 0 +++
[pid 12316] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12316, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12318
./strace-static-x86_64: Process 12318 attached
[pid 12318] set_robust_list(0x5555874576a0, 24) = 0
[pid 12318] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12318] setpgid(0, 0)               = 0
[pid 12318] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12318] write(3, "1000", 4)         = 4
[pid 12318] close(3)                    = 0
executing program
[pid 12318] write(1, "executing program\n", 18) = 18
[pid 12318] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12318] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12318] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12318] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12318] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12318] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12318] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12319 attached
 => {parent_tid=[12319]}, 88) = 12319
[pid 12318] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12319] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12318] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12318] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12318] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12319] <... set_robust_list resumed>) = 0
[pid 12319] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12319] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12319] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12318] <... futex resumed>)        = 0
[pid 12318] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12318] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12319] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12319] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12318] <... futex resumed>)        = 0
[pid 12318] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12318] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12319] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12319] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12318] <... futex resumed>)        = 0
[pid 12318] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12318] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12319] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12319] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12318] <... futex resumed>)        = 0
[pid 12318] exit_group(0)               = ?
[pid 12319] +++ exited with 0 +++
[pid 12318] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12318, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12320 attached
, child_tidptr=0x555587457690) = 12320
[pid 12320] set_robust_list(0x5555874576a0, 24) = 0
[pid 12320] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12320] setpgid(0, 0)               = 0
[pid 12320] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12320] write(3, "1000", 4)         = 4
[pid 12320] close(3)                    = 0
[pid 12320] write(1, "executing program\n", 18executing program
) = 18
[pid 12320] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12320] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12320] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12320] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12320] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12320] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12320] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12321 attached
 <unfinished ...>
[pid 12321] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12321] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12321] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12320] <... clone3 resumed> => {parent_tid=[12321]}, 88) = 12321
[pid 12320] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12320] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12321] <... futex resumed>)        = 0
[pid 12321] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12321] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12321] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12320] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12320] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12321] <... futex resumed>)        = 0
[pid 12321] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12321] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12321] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12320] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12320] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12321] <... futex resumed>)        = 0
[pid 12321] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12320] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12321] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12321] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12320] <... futex resumed>)        = 0
[pid 12320] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12320] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12321] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12321] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12320] <... futex resumed>)        = 0
[pid 12320] exit_group(0)               = ?
[pid 12321] +++ exited with 0 +++
[pid 12320] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12320, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12322 attached
, child_tidptr=0x555587457690) = 12322
[pid 12322] set_robust_list(0x5555874576a0, 24) = 0
[pid 12322] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12322] setpgid(0, 0)               = 0
[pid 12322] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12322] write(3, "1000", 4)         = 4
[pid 12322] close(3)                    = 0
[pid 12322] write(1, "executing program\n", 18) = 18
[pid 12322] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12322] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, executing program
NULL, 8) = 0
[pid 12322] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12322] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12322] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12322] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12322] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12323 attached
 => {parent_tid=[12323]}, 88) = 12323
[pid 12322] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12322] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12322] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12323] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12323] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12323] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12323] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12322] <... futex resumed>)        = 0
[pid 12322] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12322] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12323] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12323] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12322] <... futex resumed>)        = 0
[pid 12322] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12322] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12323] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12323] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12322] <... futex resumed>)        = 0
[pid 12322] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12322] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12323] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12323] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12322] <... futex resumed>)        = 0
[pid 12322] exit_group(0)               = ?
[pid 12323] +++ exited with 0 +++
[pid 12322] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12322, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12324
./strace-static-x86_64: Process 12324 attached
[pid 12324] set_robust_list(0x5555874576a0, 24) = 0
[pid 12324] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12324] setpgid(0, 0)               = 0
[pid 12324] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12324] write(3, "1000", 4)         = 4
[pid 12324] close(3)                    = 0
[pid 12324] write(1, "executing program\n", 18executing program
) = 18
[pid 12324] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12324] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12324] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12324] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12324] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12324] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12324] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12325 attached
 => {parent_tid=[12325]}, 88) = 12325
[pid 12325] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12325] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12325] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12324] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12324] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12325] <... futex resumed>)        = 0
[pid 12325] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12325] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12325] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12324] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12324] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12325] <... futex resumed>)        = 0
[pid 12325] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12325] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12325] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12324] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12324] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12325] <... futex resumed>)        = 0
[pid 12325] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12325] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12325] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12324] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12324] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12325] <... futex resumed>)        = 0
[pid 12325] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12324] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12325] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12325] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12325] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12324] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12324] exit_group(0)               = ?
[pid 12325] <... futex resumed>)        = ?
[pid 12325] +++ exited with 0 +++
[pid 12324] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12324, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12326
./strace-static-x86_64: Process 12326 attached
[pid 12326] set_robust_list(0x5555874576a0, 24) = 0
[pid 12326] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12326] setpgid(0, 0)               = 0
[pid 12326] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12326] write(3, "1000", 4)         = 4
[pid 12326] close(3)                    = 0
[pid 12326] write(1, "executing program\n", 18executing program
) = 18
[pid 12326] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12326] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12326] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12326] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12326] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12326] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12326] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12327 attached
 => {parent_tid=[12327]}, 88) = 12327
[pid 12326] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12326] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12326] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12327] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12327] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12327] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12327] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12326] <... futex resumed>)        = 0
[pid 12326] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12326] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12327] <... futex resumed>)        = 1
[pid 12327] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12327] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12326] <... futex resumed>)        = 0
[pid 12326] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12326] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12327] <... futex resumed>)        = 1
[pid 12327] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12327] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12326] <... futex resumed>)        = 0
[pid 12326] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12326] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12327] <... futex resumed>)        = 1
[pid 12327] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12327] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12326] <... futex resumed>)        = 0
[pid 12326] exit_group(0)               = ?
[pid 12327] <... futex resumed>)        = ?
[pid 12327] +++ exited with 0 +++
[pid 12326] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12326, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12328
./strace-static-x86_64: Process 12328 attached
[pid 12328] set_robust_list(0x5555874576a0, 24) = 0
[pid 12328] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12328] setpgid(0, 0)               = 0
[pid 12328] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12328] write(3, "1000", 4)         = 4
[pid 12328] close(3)                    = 0
executing program
[pid 12328] write(1, "executing program\n", 18) = 18
[pid 12328] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12328] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12328] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12328] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12328] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12328] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12328] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12329 attached
 => {parent_tid=[12329]}, 88) = 12329
[pid 12329] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12328] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12329] <... set_robust_list resumed>) = 0
[pid 12328] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12329] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12328] <... futex resumed>)        = 0
[pid 12329] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12328] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12329] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12329] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12328] <... futex resumed>)        = 0
[pid 12328] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12328] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12329] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12329] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12328] <... futex resumed>)        = 0
[pid 12328] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12328] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12329] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12329] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12328] <... futex resumed>)        = 0
[pid 12328] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12328] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12329] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12329] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12328] <... futex resumed>)        = 0
[pid 12328] exit_group(0)               = ?
[pid 12329] +++ exited with 0 +++
[pid 12328] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12328, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12330
./strace-static-x86_64: Process 12330 attached
[pid 12330] set_robust_list(0x5555874576a0, 24) = 0
[pid 12330] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12330] setpgid(0, 0)               = 0
[pid 12330] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12330] write(3, "1000", 4)         = 4
[pid 12330] close(3executing program
)                    = 0
[pid 12330] write(1, "executing program\n", 18) = 18
[pid 12330] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12330] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12330] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12330] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12330] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12330] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12330] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12331]}, 88) = 12331
./strace-static-x86_64: Process 12331 attached
[pid 12330] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12330] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12330] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12331] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12331] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12331] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12331] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12330] <... futex resumed>)        = 0
[pid 12330] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12330] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12331] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12331] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12330] <... futex resumed>)        = 0
[pid 12330] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12330] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12331] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12331] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12330] <... futex resumed>)        = 0
[pid 12330] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12330] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12331] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12331] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12330] <... futex resumed>)        = 0
[pid 12330] exit_group(0)               = ?
[pid 12331] +++ exited with 0 +++
[pid 12330] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12330, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12332
./strace-static-x86_64: Process 12332 attached
[pid 12332] set_robust_list(0x5555874576a0, 24) = 0
[pid 12332] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12332] setpgid(0, 0)               = 0
[pid 12332] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12332] write(3, "1000", 4)         = 4
[pid 12332] close(3)                    = 0
[pid 12332] write(1, "executing program\n", 18executing program
) = 18
[pid 12332] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12332] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12332] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12332] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12332] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12332] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12332] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12333 attached
 => {parent_tid=[12333]}, 88) = 12333
[pid 12333] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12333] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12333] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12332] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12332] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12333] <... futex resumed>)        = 0
[pid 12333] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12333] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12333] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12332] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12332] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12333] <... futex resumed>)        = 0
[pid 12333] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12333] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12333] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12332] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12332] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12333] <... futex resumed>)        = 0
[pid 12333] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12333] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12333] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12332] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12332] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12333] <... futex resumed>)        = 0
[pid 12333] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12333] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12332] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12333] <... futex resumed>)        = 0
[pid 12332] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12333] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12332] exit_group(0)               = ?
[pid 12333] <... futex resumed>)        = ?
[pid 12333] +++ exited with 0 +++
[pid 12332] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12332, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12334
./strace-static-x86_64: Process 12334 attached
[pid 12334] set_robust_list(0x5555874576a0, 24) = 0
[pid 12334] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12334] setpgid(0, 0)               = 0
[pid 12334] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12334] write(3, "1000", 4)         = 4
[pid 12334] close(3)                    = 0
executing program
[pid 12334] write(1, "executing program\n", 18) = 18
[pid 12334] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12334] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12334] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12334] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12334] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12334] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12334] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12335 attached
 => {parent_tid=[12335]}, 88) = 12335
[pid 12335] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12335] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12335] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12334] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12334] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12335] <... futex resumed>)        = 0
[pid 12335] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12334] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12335] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12335] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12334] <... futex resumed>)        = 0
[pid 12334] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12335] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12334] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12335] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12335] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12335] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12334] <... futex resumed>)        = 0
[pid 12334] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12335] <... futex resumed>)        = 0
[pid 12335] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12334] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12335] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12334] <... futex resumed>)        = 0
[pid 12334] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12334] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12335] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12335] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12335] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12334] <... futex resumed>)        = 0
[pid 12334] exit_group(0)               = ?
[pid 12335] <... futex resumed>)        = ?
[pid 12335] +++ exited with 0 +++
[pid 12334] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12334, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12336
./strace-static-x86_64: Process 12336 attached
[pid 12336] set_robust_list(0x5555874576a0, 24) = 0
[pid 12336] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12336] setpgid(0, 0)               = 0
[pid 12336] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12336] write(3, "1000", 4)         = 4
[pid 12336] close(3)                    = 0
executing program
[pid 12336] write(1, "executing program\n", 18) = 18
[pid 12336] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12336] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12336] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12336] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12336] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12336] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12336] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12337]}, 88) = 12337
[pid 12336] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12336] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12336] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12337 attached
 <unfinished ...>
[pid 12337] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12337] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12337] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12337] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12336] <... futex resumed>)        = 0
[pid 12336] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12336] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12337] <... futex resumed>)        = 1
[pid 12337] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12337] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12336] <... futex resumed>)        = 0
[pid 12337] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12336] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12337] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12336] <... futex resumed>)        = 0
[pid 12336] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12337] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12337] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12336] <... futex resumed>)        = 0
[pid 12336] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12336] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12337] <... futex resumed>)        = 1
[pid 12337] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12337] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12336] <... futex resumed>)        = 0
[pid 12336] exit_group(0)               = ?
[pid 12337] <... futex resumed>)        = ?
[pid 12337] +++ exited with 0 +++
[pid 12336] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12336, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12338
./strace-static-x86_64: Process 12338 attached
[pid 12338] set_robust_list(0x5555874576a0, 24) = 0
[pid 12338] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12338] setpgid(0, 0)               = 0
[pid 12338] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12338] write(3, "1000", 4executing program
)         = 4
[pid 12338] close(3)                    = 0
[pid 12338] write(1, "executing program\n", 18) = 18
[pid 12338] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12338] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12338] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12338] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12338] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12338] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12338] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12339 attached
 => {parent_tid=[12339]}, 88) = 12339
[pid 12338] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12338] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12338] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12339] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12339] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12339] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12339] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12339] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12338] <... futex resumed>)        = 0
[pid 12338] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12339] <... futex resumed>)        = 0
[pid 12338] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12339] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12339] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12338] <... futex resumed>)        = 0
[pid 12339] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12338] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12339] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12339] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12338] <... futex resumed>)        = 0
[pid 12339] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12338] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12338] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12339] <... futex resumed>)        = 0
[pid 12338] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12339] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12339] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12338] <... futex resumed>)        = 0
[pid 12339] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12338] exit_group(0 <unfinished ...>
[pid 12339] <... futex resumed>)        = ?
[pid 12338] <... exit_group resumed>)   = ?
[pid 12339] +++ exited with 0 +++
[pid 12338] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12338, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12340
./strace-static-x86_64: Process 12340 attached
[pid 12340] set_robust_list(0x5555874576a0, 24) = 0
[pid 12340] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12340] setpgid(0, 0)               = 0
[pid 12340] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12340] write(3, "1000", 4)         = 4
[pid 12340] close(3)                    = 0
executing program
[pid 12340] write(1, "executing program\n", 18) = 18
[pid 12340] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12340] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12340] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12340] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12340] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12340] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12340] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12341 attached
 => {parent_tid=[12341]}, 88) = 12341
[pid 12341] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12341] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12341] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12340] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12340] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12341] <... futex resumed>)        = 0
[pid 12341] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12341] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12341] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12340] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12340] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12341] <... futex resumed>)        = 0
[pid 12341] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12341] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12341] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12340] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12340] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12341] <... futex resumed>)        = 0
[pid 12340] <... futex resumed>)        = 1
[pid 12341] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12340] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12341] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12341] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12340] <... futex resumed>)        = 0
[pid 12340] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12340] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12341] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12341] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12340] <... futex resumed>)        = 0
[pid 12341] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12340] exit_group(0)               = ?
[pid 12341] <... futex resumed>)        = ?
[pid 12341] +++ exited with 0 +++
[pid 12340] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12340, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12342
./strace-static-x86_64: Process 12342 attached
[pid 12342] set_robust_list(0x5555874576a0, 24) = 0
[pid 12342] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12342] setpgid(0, 0)               = 0
[pid 12342] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12342] write(3, "1000", 4)         = 4
[pid 12342] close(3)                    = 0
[pid 12342] write(1, "executing program\n", 18executing program
) = 18
[pid 12342] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12342] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12342] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12342] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12342] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12342] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12342] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12343 attached
 => {parent_tid=[12343]}, 88) = 12343
[pid 12343] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12343] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12343] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12342] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12342] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12343] <... futex resumed>)        = 0
[pid 12343] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12343] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12343] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12342] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12342] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12343] <... futex resumed>)        = 0
[pid 12343] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12343] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12343] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12342] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12342] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12342] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12343] <... futex resumed>)        = 0
[pid 12343] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12343] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12342] <... futex resumed>)        = 0
[pid 12342] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12342] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12343] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12343] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12342] <... futex resumed>)        = 0
[pid 12342] exit_group(0)               = ?
[pid 12343] +++ exited with 0 +++
[pid 12342] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12342, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12344
./strace-static-x86_64: Process 12344 attached
[pid 12344] set_robust_list(0x5555874576a0, 24) = 0
[pid 12344] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12344] setpgid(0, 0)               = 0
[pid 12344] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12344] write(3, "1000", 4)         = 4
[pid 12344] close(3)                    = 0
[pid 12344] write(1, "executing program\n", 18executing program
) = 18
[pid 12344] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12344] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12344] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12344] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12344] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12344] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12344] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12345 attached
 => {parent_tid=[12345]}, 88) = 12345
[pid 12345] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12345] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12345] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12344] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12344] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12345] <... futex resumed>)        = 0
[pid 12345] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12345] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12345] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12344] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12344] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12345] <... futex resumed>)        = 0
[pid 12345] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12345] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12345] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12344] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12344] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12345] <... futex resumed>)        = 0
[pid 12345] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12344] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12345] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12345] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12344] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12344] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12345] <... futex resumed>)        = 0
[pid 12345] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12345] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12345] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12344] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12344] exit_group(0)               = ?
[pid 12345] <... futex resumed>)        = ?
[pid 12345] +++ exited with 0 +++
[pid 12344] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12344, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12346 attached
, child_tidptr=0x555587457690) = 12346
[pid 12346] set_robust_list(0x5555874576a0, 24) = 0
[pid 12346] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12346] setpgid(0, 0)               = 0
[pid 12346] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12346] write(3, "1000", 4)         = 4
executing program
[pid 12346] close(3)                    = 0
[pid 12346] write(1, "executing program\n", 18) = 18
[pid 12346] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12346] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12346] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12346] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12346] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12346] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12346] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12347 attached
 => {parent_tid=[12347]}, 88) = 12347
[pid 12346] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12347] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12346] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12346] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12346] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12347] <... set_robust_list resumed>) = 0
[pid 12347] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12347] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12347] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12346] <... futex resumed>)        = 0
[pid 12346] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12346] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12347] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12347] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12346] <... futex resumed>)        = 0
[pid 12346] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12346] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12347] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12347] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12346] <... futex resumed>)        = 0
[pid 12346] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12346] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12347] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12347] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12346] <... futex resumed>)        = 0
[pid 12346] exit_group(0)               = ?
[pid 12347] +++ exited with 0 +++
[pid 12346] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12346, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12348
./strace-static-x86_64: Process 12348 attached
[pid 12348] set_robust_list(0x5555874576a0, 24) = 0
[pid 12348] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12348] setpgid(0, 0)               = 0
[pid 12348] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12348] write(3, "1000", 4)         = 4
[pid 12348] close(3)                    = 0
[pid 12348] write(1, "executing program\n", 18executing program
) = 18
[pid 12348] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12348] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12348] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12348] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12348] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12348] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12348] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12349 attached
 <unfinished ...>
[pid 12349] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12349] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12349] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12348] <... clone3 resumed> => {parent_tid=[12349]}, 88) = 12349
[pid 12348] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12348] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12349] <... futex resumed>)        = 0
[pid 12349] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12349] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12349] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12348] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12348] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12349] <... futex resumed>)        = 0
[pid 12349] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12349] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12349] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12348] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12348] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12349] <... futex resumed>)        = 0
[pid 12349] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12349] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12349] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12348] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12348] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12349] <... futex resumed>)        = 0
[pid 12349] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12349] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12349] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12348] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12348] exit_group(0 <unfinished ...>
[pid 12349] <... futex resumed>)        = ?
[pid 12348] <... exit_group resumed>)   = ?
[pid 12349] +++ exited with 0 +++
[pid 12348] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12348, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12350
./strace-static-x86_64: Process 12350 attached
[pid 12350] set_robust_list(0x5555874576a0, 24) = 0
[pid 12350] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12350] setpgid(0, 0)               = 0
[pid 12350] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12350] write(3, "1000", 4)         = 4
[pid 12350] close(3)                    = 0
[pid 12350] write(1, "executing program\n", 18executing program
) = 18
[pid 12350] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12350] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12350] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12350] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12350] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12350] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12350] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12351 attached
 => {parent_tid=[12351]}, 88) = 12351
[pid 12351] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12351] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12351] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12350] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12350] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12351] <... futex resumed>)        = 0
[pid 12351] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12351] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12351] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12350] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12350] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12351] <... futex resumed>)        = 0
[pid 12351] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12351] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12351] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12350] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12350] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12351] <... futex resumed>)        = 0
[pid 12351] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12350] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12351] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12350] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12351] <... futex resumed>)        = 0
[pid 12350] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12351] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12350] <... futex resumed>)        = 0
[pid 12351] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12350] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12351] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12350] <... futex resumed>)        = 0
[pid 12351] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12350] exit_group(0)               = ?
[pid 12351] <... futex resumed>)        = ?
[pid 12351] +++ exited with 0 +++
[pid 12350] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12350, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12352
./strace-static-x86_64: Process 12352 attached
[pid 12352] set_robust_list(0x5555874576a0, 24) = 0
[pid 12352] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12352] setpgid(0, 0)               = 0
[pid 12352] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12352] write(3, "1000", 4)         = 4
[pid 12352] close(3)                    = 0
[pid 12352] write(1, "executing program\n", 18executing program
) = 18
[pid 12352] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12352] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12352] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12352] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12352] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12352] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12352] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12353 attached
 => {parent_tid=[12353]}, 88) = 12353
[pid 12353] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12352] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12353] <... set_robust_list resumed>) = 0
[pid 12352] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12353] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12352] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12353] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12352] <... futex resumed>)        = 0
[pid 12353] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12352] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12353] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12353] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12352] <... futex resumed>)        = 0
[pid 12352] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12352] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12353] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12353] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12353] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12352] <... futex resumed>)        = 0
[pid 12352] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12352] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12353] <... futex resumed>)        = 0
[pid 12353] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12353] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12352] <... futex resumed>)        = 0
[pid 12352] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12352] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12353] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12353] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12352] <... futex resumed>)        = 0
[pid 12352] exit_group(0)               = ?
[pid 12353] +++ exited with 0 +++
[pid 12352] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12352, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12354 attached
, child_tidptr=0x555587457690) = 12354
[pid 12354] set_robust_list(0x5555874576a0, 24) = 0
[pid 12354] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12354] setpgid(0, 0)               = 0
[pid 12354] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12354] write(3, "1000", 4)         = 4
[pid 12354] close(3)                    = 0
[pid 12354] write(1, "executing program\n", 18executing program
) = 18
[pid 12354] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12354] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12354] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12354] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12354] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12354] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12354] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12355 attached
 => {parent_tid=[12355]}, 88) = 12355
[pid 12355] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12355] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12355] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12354] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12354] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12355] <... futex resumed>)        = 0
[pid 12354] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12355] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12355] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12355] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12354] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12354] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12355] <... futex resumed>)        = 0
[pid 12355] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12355] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12355] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12354] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12354] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12355] <... futex resumed>)        = 0
[pid 12355] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12354] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12355] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12355] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12354] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12354] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12355] <... futex resumed>)        = 0
[pid 12355] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12354] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12355] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12355] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12355] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12354] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12354] exit_group(0)               = ?
[pid 12355] <... futex resumed>)        = ?
[pid 12355] +++ exited with 0 +++
[pid 12354] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12354, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12356
./strace-static-x86_64: Process 12356 attached
[pid 12356] set_robust_list(0x5555874576a0, 24) = 0
[pid 12356] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12356] setpgid(0, 0)               = 0
[pid 12356] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12356] write(3, "1000", 4)         = 4
[pid 12356] close(3)                    = 0
[pid 12356] write(1, "executing program\n", 18executing program
) = 18
[pid 12356] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12356] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12356] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12356] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12356] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12356] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12356] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12357]}, 88) = 12357
[pid 12356] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
./strace-static-x86_64: Process 12357 attached
[pid 12356] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12357] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12356] <... futex resumed>)        = 0
[pid 12357] <... set_robust_list resumed>) = 0
[pid 12356] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12357] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12357] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12357] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12356] <... futex resumed>)        = 0
[pid 12356] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12356] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12357] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12357] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12356] <... futex resumed>)        = 0
[pid 12356] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12356] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12357] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12357] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12356] <... futex resumed>)        = 0
[pid 12356] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12356] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12357] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12357] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12356] <... futex resumed>)        = 0
[pid 12356] exit_group(0)               = ?
[pid 12357] +++ exited with 0 +++
[pid 12356] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12356, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12358
./strace-static-x86_64: Process 12358 attached
[pid 12358] set_robust_list(0x5555874576a0, 24) = 0
[pid 12358] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12358] setpgid(0, 0)               = 0
[pid 12358] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12358] write(3, "1000", 4)         = 4
[pid 12358] close(3)                    = 0
[pid 12358] write(1, "executing program\n", 18executing program
) = 18
[pid 12358] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12358] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12358] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12358] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12358] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12358] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12358] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12359]}, 88) = 12359
./strace-static-x86_64: Process 12359 attached
[pid 12359] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12359] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12359] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12358] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12358] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12359] <... futex resumed>)        = 0
[pid 12359] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12359] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12359] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12358] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12358] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12359] <... futex resumed>)        = 0
[pid 12359] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12359] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12359] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12358] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12358] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12359] <... futex resumed>)        = 0
[pid 12359] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12359] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12359] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12358] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12358] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12359] <... futex resumed>)        = 0
[pid 12359] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12359] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12359] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12358] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12358] exit_group(0)               = ?
[pid 12359] <... futex resumed>)        = ?
[pid 12359] +++ exited with 0 +++
[pid 12358] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12358, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12360 attached
, child_tidptr=0x555587457690) = 12360
[pid 12360] set_robust_list(0x5555874576a0, 24) = 0
[pid 12360] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12360] setpgid(0, 0)               = 0
[pid 12360] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12360] write(3, "1000", 4)         = 4
[pid 12360] close(3)                    = 0
executing program
[pid 12360] write(1, "executing program\n", 18) = 18
[pid 12360] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12360] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12360] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12360] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12360] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12360] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12360] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12361 attached
 => {parent_tid=[12361]}, 88) = 12361
[pid 12361] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12360] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12361] <... set_robust_list resumed>) = 0
[pid 12360] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12361] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12360] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12361] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12360] <... futex resumed>)        = 0
[pid 12361] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12360] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12361] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12361] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12360] <... futex resumed>)        = 0
[pid 12361] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12360] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12361] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12360] <... futex resumed>)        = 0
[pid 12361] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12360] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12361] <... futex resumed>)        = 0
[pid 12360] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12361] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12360] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12361] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12360] <... futex resumed>)        = 0
[pid 12361] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12360] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12361] <... futex resumed>)        = 0
[pid 12360] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12361] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12360] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12361] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12360] <... futex resumed>)        = 0
[pid 12361] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12360] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12361] <... futex resumed>)        = 0
[pid 12360] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12361] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12360] exit_group(0 <unfinished ...>
[pid 12361] <... futex resumed>)        = ?
[pid 12360] <... exit_group resumed>)   = ?
[pid 12361] +++ exited with 0 +++
[pid 12360] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12360, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12362 attached
, child_tidptr=0x555587457690) = 12362
[pid 12362] set_robust_list(0x5555874576a0, 24) = 0
[pid 12362] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12362] setpgid(0, 0)               = 0
[pid 12362] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12362] write(3, "1000", 4)         = 4
[pid 12362] close(3)                    = 0
executing program
[pid 12362] write(1, "executing program\n", 18) = 18
[pid 12362] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12362] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12362] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12362] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12362] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12362] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12362] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12363 attached
 => {parent_tid=[12363]}, 88) = 12363
[pid 12362] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12363] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12362] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12363] <... set_robust_list resumed>) = 0
[pid 12363] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12363] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12362] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12363] <... futex resumed>)        = 0
[pid 12362] <... futex resumed>)        = 1
[pid 12363] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12362] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12363] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12363] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12362] <... futex resumed>)        = 0
[pid 12363] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12362] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12363] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12362] <... futex resumed>)        = 0
[pid 12363] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12362] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12363] <... futex resumed>)        = 0
[pid 12362] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12363] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12362] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12363] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12362] <... futex resumed>)        = 0
[pid 12363] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12362] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12363] <... futex resumed>)        = 0
[pid 12362] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12363] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12362] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12362] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12363] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12363] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12362] <... futex resumed>)        = 0
[pid 12363] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12362] exit_group(0 <unfinished ...>
[pid 12363] <... futex resumed>)        = ?
[pid 12362] <... exit_group resumed>)   = ?
[pid 12363] +++ exited with 0 +++
[pid 12362] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12362, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12364
./strace-static-x86_64: Process 12364 attached
[pid 12364] set_robust_list(0x5555874576a0, 24) = 0
[pid 12364] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12364] setpgid(0, 0)               = 0
[pid 12364] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12364] write(3, "1000", 4)         = 4
[pid 12364] close(3executing program
)                    = 0
[pid 12364] write(1, "executing program\n", 18) = 18
[pid 12364] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12364] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12364] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12364] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12364] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12364] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12364] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12365 attached
 <unfinished ...>
[pid 12365] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12365] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12365] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12364] <... clone3 resumed> => {parent_tid=[12365]}, 88) = 12365
[pid 12364] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12364] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12365] <... futex resumed>)        = 0
[pid 12364] <... futex resumed>)        = 1
[pid 12365] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12364] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12365] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12365] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12364] <... futex resumed>)        = 0
[pid 12365] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12364] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12365] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12364] <... futex resumed>)        = 0
[pid 12365] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12364] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12365] <... futex resumed>)        = 0
[pid 12364] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12365] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12364] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12365] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12364] <... futex resumed>)        = 0
[pid 12365] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12364] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12365] <... futex resumed>)        = 0
[pid 12364] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12365] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12364] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12365] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12364] <... futex resumed>)        = 0
[pid 12365] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12364] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12365] <... futex resumed>)        = 0
[pid 12364] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12365] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12364] exit_group(0 <unfinished ...>
[pid 12365] <... futex resumed>)        = ?
[pid 12364] <... exit_group resumed>)   = ?
[pid 12365] +++ exited with 0 +++
[pid 12364] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12364, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12366
./strace-static-x86_64: Process 12366 attached
[pid 12366] set_robust_list(0x5555874576a0, 24) = 0
[pid 12366] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12366] setpgid(0, 0)               = 0
[pid 12366] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12366] write(3, "1000", 4)         = 4
[pid 12366] close(3executing program
)                    = 0
[pid 12366] write(1, "executing program\n", 18) = 18
[pid 12366] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12366] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12366] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12366] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12366] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12366] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12366] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12367 attached
 => {parent_tid=[12367]}, 88) = 12367
[pid 12366] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12366] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12366] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12367] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12367] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12367] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12367] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12366] <... futex resumed>)        = 0
[pid 12367] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12366] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12367] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12366] <... futex resumed>)        = 0
[pid 12367] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12366] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12367] <... futex resumed>)        = 0
[pid 12366] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12367] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12366] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12367] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12366] <... futex resumed>)        = 0
[pid 12367] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12366] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12367] <... futex resumed>)        = 0
[pid 12366] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12367] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12366] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12367] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12366] <... futex resumed>)        = 0
[pid 12367] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12366] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12367] <... futex resumed>)        = 0
[pid 12366] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12367] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12366] exit_group(0 <unfinished ...>
[pid 12367] <... futex resumed>)        = ?
[pid 12366] <... exit_group resumed>)   = ?
[pid 12367] +++ exited with 0 +++
[pid 12366] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12366, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12368 attached
, child_tidptr=0x555587457690) = 12368
[pid 12368] set_robust_list(0x5555874576a0, 24) = 0
[pid 12368] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12368] setpgid(0, 0)               = 0
[pid 12368] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12368] write(3, "1000", 4)         = 4
[pid 12368] close(3)                    = 0
executing program
[pid 12368] write(1, "executing program\n", 18) = 18
[pid 12368] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12368] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12368] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12368] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12368] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12368] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12368] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12369 attached
 <unfinished ...>
[pid 12369] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12369] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12368] <... clone3 resumed> => {parent_tid=[12369]}, 88) = 12369
[pid 12369] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12368] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12368] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12368] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12369] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12369] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12369] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12368] <... futex resumed>)        = 0
[pid 12369] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12368] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12368] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12369] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12369] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12369] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12368] <... futex resumed>)        = 0
[pid 12369] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12368] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12368] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12369] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12369] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12369] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12368] <... futex resumed>)        = 0
[pid 12368] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12368] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12369] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12369] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12368] <... futex resumed>)        = 0
[pid 12369] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12368] exit_group(0 <unfinished ...>
[pid 12369] <... futex resumed>)        = ?
[pid 12368] <... exit_group resumed>)   = ?
[pid 12369] +++ exited with 0 +++
[pid 12368] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12368, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12370 attached
, child_tidptr=0x555587457690) = 12370
[pid 12370] set_robust_list(0x5555874576a0, 24) = 0
[pid 12370] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12370] setpgid(0, 0)               = 0
[pid 12370] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12370] write(3, "1000", 4)         = 4
[pid 12370] close(3)                    = 0
[pid 12370] write(1, "executing program\n", 18executing program
) = 18
[pid 12370] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12370] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12370] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12370] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12370] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12370] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12370] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12371 attached
 => {parent_tid=[12371]}, 88) = 12371
[pid 12371] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12371] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12371] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12370] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12370] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12371] <... futex resumed>)        = 0
[pid 12371] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12371] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12371] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12370] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12370] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12371] <... futex resumed>)        = 0
[pid 12371] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12371] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12370] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12371] <... futex resumed>)        = 0
[pid 12371] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12370] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12370] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12371] <... futex resumed>)        = 0
[pid 12371] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12371] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12370] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12371] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12370] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12370] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12371] <... futex resumed>)        = 0
[pid 12371] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12371] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12370] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12371] <... futex resumed>)        = 0
[pid 12370] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12371] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12370] exit_group(0)               = ?
[pid 12371] <... futex resumed>)        = ?
[pid 12371] +++ exited with 0 +++
[pid 12370] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12370, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12372 attached
, child_tidptr=0x555587457690) = 12372
[pid 12372] set_robust_list(0x5555874576a0, 24) = 0
[pid 12372] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12372] setpgid(0, 0)               = 0
[pid 12372] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12372] write(3, "1000", 4)         = 4
[pid 12372] close(3)                    = 0
[pid 12372] write(1, "executing program\n", 18executing program
) = 18
[pid 12372] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12372] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12372] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12372] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12372] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12372] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12372] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12373 attached
 <unfinished ...>
[pid 12373] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12372] <... clone3 resumed> => {parent_tid=[12373]}, 88) = 12373
[pid 12373] <... set_robust_list resumed>) = 0
[pid 12372] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12373] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12372] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12373] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12372] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12373] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12372] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12373] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12373] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12372] <... futex resumed>)        = 0
[pid 12373] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12372] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12373] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12372] <... futex resumed>)        = 0
[pid 12373] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12372] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12373] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12373] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12372] <... futex resumed>)        = 0
[pid 12373] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12372] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12373] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12372] <... futex resumed>)        = 0
[pid 12373] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12372] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12373] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12373] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12372] <... futex resumed>)        = 0
[pid 12373] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12372] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12373] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12372] <... futex resumed>)        = 0
[pid 12373] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12372] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12373] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12373] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12372] <... futex resumed>)        = 0
[pid 12372] exit_group(0)               = ?
[pid 12373] +++ exited with 0 +++
[pid 12372] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12372, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12374
./strace-static-x86_64: Process 12374 attached
[pid 12374] set_robust_list(0x5555874576a0, 24) = 0
[pid 12374] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12374] setpgid(0, 0)               = 0
[pid 12374] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12374] write(3, "1000", 4)         = 4
[pid 12374] close(3)                    = 0
executing program
[pid 12374] write(1, "executing program\n", 18) = 18
[pid 12374] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12374] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12374] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12374] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12374] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12374] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12374] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12375 attached
 => {parent_tid=[12375]}, 88) = 12375
[pid 12375] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12374] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12375] <... set_robust_list resumed>) = 0
[pid 12374] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12375] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12374] <... futex resumed>)        = 0
[pid 12375] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12374] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12375] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12375] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12374] <... futex resumed>)        = 0
[pid 12374] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12374] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12375] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12375] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12374] <... futex resumed>)        = 0
[pid 12374] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12374] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12375] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12375] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12374] <... futex resumed>)        = 0
[pid 12375] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12374] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12375] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12374] <... futex resumed>)        = 0
[pid 12375] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12374] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12375] <... futex resumed>)        = 0
[pid 12374] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12375] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12374] exit_group(0 <unfinished ...>
[pid 12375] <... futex resumed>)        = ?
[pid 12374] <... exit_group resumed>)   = ?
[pid 12375] +++ exited with 0 +++
[pid 12374] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12374, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12376
./strace-static-x86_64: Process 12376 attached
[pid 12376] set_robust_list(0x5555874576a0, 24) = 0
[pid 12376] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12376] setpgid(0, 0)               = 0
[pid 12376] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12376] write(3, "1000", 4)         = 4
executing program
[pid 12376] close(3)                    = 0
[pid 12376] write(1, "executing program\n", 18) = 18
[pid 12376] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12376] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12376] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12376] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12376] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12376] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12376] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12377]}, 88) = 12377
[pid 12376] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 12377 attached
 <unfinished ...>
[pid 12377] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12377] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12377] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12376] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12376] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12377] <... futex resumed>)        = 0
[pid 12377] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12376] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12377] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12377] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12376] <... futex resumed>)        = 0
[pid 12376] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12376] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12377] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12377] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12376] <... futex resumed>)        = 0
[pid 12377] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12376] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12377] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12377] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12376] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12377] <... futex resumed>)        = 0
[pid 12376] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12376] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12377] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12376] <... futex resumed>)        = 0
[pid 12377] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12376] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12377] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12376] <... futex resumed>)        = 0
[pid 12376] exit_group(0)               = ?
[pid 12377] +++ exited with 0 +++
[pid 12376] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12376, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12378
./strace-static-x86_64: Process 12378 attached
[pid 12378] set_robust_list(0x5555874576a0, 24) = 0
[pid 12378] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12378] setpgid(0, 0)               = 0
[pid 12378] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12378] write(3, "1000", 4)         = 4
[pid 12378] close(3)                    = 0
executing program
[pid 12378] write(1, "executing program\n", 18) = 18
[pid 12378] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12378] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12378] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12378] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12378] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12378] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12378] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12379 attached
 => {parent_tid=[12379]}, 88) = 12379
[pid 12379] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12378] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12379] <... set_robust_list resumed>) = 0
[pid 12378] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12379] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12378] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12379] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12378] <... futex resumed>)        = 0
[pid 12379] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12378] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12379] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12379] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12378] <... futex resumed>)        = 0
[pid 12378] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12379] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12378] <... futex resumed>)        = 0
[pid 12378] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12379] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12379] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12378] <... futex resumed>)        = 0
[pid 12378] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12378] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12379] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12379] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12378] <... futex resumed>)        = 0
[pid 12378] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12378] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12379] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12379] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12378] <... futex resumed>)        = 0
[pid 12378] exit_group(0)               = ?
[pid 12379] +++ exited with 0 +++
[pid 12378] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12378, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12380
./strace-static-x86_64: Process 12380 attached
[pid 12380] set_robust_list(0x5555874576a0, 24) = 0
[pid 12380] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12380] setpgid(0, 0)               = 0
[pid 12380] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12380] write(3, "1000", 4)         = 4
[pid 12380] close(3)                    = 0
executing program
[pid 12380] write(1, "executing program\n", 18) = 18
[pid 12380] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12380] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12380] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12380] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12380] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12380] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12380] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12381]}, 88) = 12381
[pid 12380] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12380] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12380] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12381 attached
 <unfinished ...>
[pid 12381] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12381] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12381] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12381] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12380] <... futex resumed>)        = 0
[pid 12380] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12380] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12381] <... futex resumed>)        = 1
[pid 12381] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12381] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12380] <... futex resumed>)        = 0
[pid 12380] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12380] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12381] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12381] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12380] <... futex resumed>)        = 0
[pid 12380] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12380] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12381] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12381] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12380] <... futex resumed>)        = 0
[pid 12380] exit_group(0)               = ?
[pid 12381] +++ exited with 0 +++
[pid 12380] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12380, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12382 attached
, child_tidptr=0x555587457690) = 12382
[pid 12382] set_robust_list(0x5555874576a0, 24) = 0
[pid 12382] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12382] setpgid(0, 0)               = 0
[pid 12382] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12382] write(3, "1000", 4)         = 4
[pid 12382] close(3)                    = 0
[pid 12382] write(1, "executing program\n", 18executing program
) = 18
[pid 12382] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12382] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12382] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12382] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12382] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12382] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12382] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12383 attached
 => {parent_tid=[12383]}, 88) = 12383
[pid 12382] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12382] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12382] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12383] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12383] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12383] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12383] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12382] <... futex resumed>)        = 0
[pid 12382] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12382] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12383] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12383] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12382] <... futex resumed>)        = 0
[pid 12382] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12382] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12383] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12383] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12382] <... futex resumed>)        = 0
[pid 12382] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12382] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12383] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12383] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12382] <... futex resumed>)        = 0
[pid 12382] exit_group(0)               = ?
[pid 12383] +++ exited with 0 +++
[pid 12382] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12382, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12384
./strace-static-x86_64: Process 12384 attached
[pid 12384] set_robust_list(0x5555874576a0, 24) = 0
[pid 12384] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12384] setpgid(0, 0)               = 0
[pid 12384] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12384] write(3, "1000", 4)         = 4
[pid 12384] close(3executing program
)                    = 0
[pid 12384] write(1, "executing program\n", 18) = 18
[pid 12384] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12384] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12384] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12384] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12384] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12384] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12384] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12385 attached
 => {parent_tid=[12385]}, 88) = 12385
[pid 12384] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12384] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12384] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12385] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12385] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12385] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12385] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12384] <... futex resumed>)        = 0
[pid 12384] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12384] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12385] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12385] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12384] <... futex resumed>)        = 0
[pid 12384] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12384] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12385] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12385] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12384] <... futex resumed>)        = 0
[pid 12384] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12384] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12385] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12385] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12385] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12384] <... futex resumed>)        = 0
[pid 12384] exit_group(0)               = ?
[pid 12385] <... futex resumed>)        = ?
[pid 12385] +++ exited with 0 +++
[pid 12384] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12384, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12386
./strace-static-x86_64: Process 12386 attached
[pid 12386] set_robust_list(0x5555874576a0, 24) = 0
[pid 12386] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12386] setpgid(0, 0)               = 0
[pid 12386] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12386] write(3, "1000", 4)         = 4
[pid 12386] close(3)                    = 0
[pid 12386] write(1, "executing program\n", 18executing program
) = 18
[pid 12386] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12386] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12386] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12386] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12386] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12386] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12386] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12387 attached
 => {parent_tid=[12387]}, 88) = 12387
[pid 12387] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12387] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12387] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12386] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12386] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12387] <... futex resumed>)        = 0
[pid 12387] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12387] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12387] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12386] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12386] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12387] <... futex resumed>)        = 0
[pid 12387] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12387] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12387] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12386] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12386] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12387] <... futex resumed>)        = 0
[pid 12387] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12386] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12387] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12386] <... futex resumed>)        = 0
[pid 12386] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12386] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12387] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12387] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12386] <... futex resumed>)        = 0
[pid 12386] exit_group(0)               = ?
[pid 12387] +++ exited with 0 +++
[pid 12386] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12386, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12388
./strace-static-x86_64: Process 12388 attached
[pid 12388] set_robust_list(0x5555874576a0, 24) = 0
[pid 12388] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12388] setpgid(0, 0)               = 0
[pid 12388] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12388] write(3, "1000", 4)         = 4
[pid 12388] close(3)                    = 0
executing program
[pid 12388] write(1, "executing program\n", 18) = 18
[pid 12388] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12388] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12388] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12388] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12388] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12388] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12388] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12389 attached
 => {parent_tid=[12389]}, 88) = 12389
[pid 12388] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12388] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12388] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12389] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12389] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12389] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12389] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12388] <... futex resumed>)        = 0
[pid 12388] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12388] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12389] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12389] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12388] <... futex resumed>)        = 0
[pid 12388] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12388] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12389] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12389] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12388] <... futex resumed>)        = 0
[pid 12388] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12388] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12389] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12389] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12388] <... futex resumed>)        = 0
[pid 12388] exit_group(0)               = ?
[pid 12389] +++ exited with 0 +++
[pid 12388] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12388, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12390
./strace-static-x86_64: Process 12390 attached
[pid 12390] set_robust_list(0x5555874576a0, 24) = 0
[pid 12390] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12390] setpgid(0, 0)               = 0
[pid 12390] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12390] write(3, "1000", 4)         = 4
[pid 12390] close(3executing program
)                    = 0
[pid 12390] write(1, "executing program\n", 18) = 18
[pid 12390] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12390] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12390] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12390] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12390] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12390] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12390] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12391 attached
 => {parent_tid=[12391]}, 88) = 12391
[pid 12390] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12390] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12390] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12391] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12391] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12391] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12391] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12390] <... futex resumed>)        = 0
[pid 12390] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12390] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12391] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12391] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12390] <... futex resumed>)        = 0
[pid 12390] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12390] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12391] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12391] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12390] <... futex resumed>)        = 0
[pid 12390] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12390] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12391] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12391] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12390] <... futex resumed>)        = 0
[pid 12390] exit_group(0 <unfinished ...>
[pid 12391] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12390] <... exit_group resumed>)   = ?
[pid 12391] <... futex resumed>)        = ?
[pid 12391] +++ exited with 0 +++
[pid 12390] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12390, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12392 attached
, child_tidptr=0x555587457690) = 12392
[pid 12392] set_robust_list(0x5555874576a0, 24) = 0
[pid 12392] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12392] setpgid(0, 0)               = 0
[pid 12392] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12392] write(3, "1000", 4)         = 4
[pid 12392] close(3executing program
)                    = 0
[pid 12392] write(1, "executing program\n", 18) = 18
[pid 12392] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12392] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12392] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12392] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12392] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12392] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12392] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12393]}, 88) = 12393
[pid 12392] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12392] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12392] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12393 attached
 <unfinished ...>
[pid 12393] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12393] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12393] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12393] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12392] <... futex resumed>)        = 0
[pid 12393] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12392] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12392] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12393] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12393] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12392] <... futex resumed>)        = 0
[pid 12393] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12392] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12393] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12392] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12393] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12392] <... futex resumed>)        = 0
[pid 12392] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12393] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12392] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12393] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12393] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12392] <... futex resumed>)        = 0
[pid 12393] <... futex resumed>)        = 1
[pid 12392] exit_group(0 <unfinished ...>
[pid 12393] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12392] <... exit_group resumed>)   = ?
[pid 12393] <... futex resumed>)        = ?
[pid 12393] +++ exited with 0 +++
[pid 12392] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12392, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12394
./strace-static-x86_64: Process 12394 attached
[pid 12394] set_robust_list(0x5555874576a0, 24) = 0
[pid 12394] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12394] setpgid(0, 0)               = 0
[pid 12394] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12394] write(3, "1000", 4)         = 4
[pid 12394] close(3)                    = 0
[pid 12394] write(1, "executing program\n", 18executing program
) = 18
[pid 12394] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12394] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12394] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12394] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12394] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12394] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12394] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12395 attached
 <unfinished ...>
[pid 12395] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12395] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12395] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12394] <... clone3 resumed> => {parent_tid=[12395]}, 88) = 12395
[pid 12394] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12394] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12395] <... futex resumed>)        = 0
[pid 12395] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12395] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12395] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12394] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12394] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12395] <... futex resumed>)        = 0
[pid 12395] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12395] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12395] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12394] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12394] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12395] <... futex resumed>)        = 0
[pid 12395] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12395] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12395] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12394] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12394] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12395] <... futex resumed>)        = 0
[pid 12395] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12394] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12395] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12395] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12395] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12394] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12394] exit_group(0)               = ?
[pid 12395] <... futex resumed>)        = ?
[pid 12395] +++ exited with 0 +++
[pid 12394] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12394, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12396 attached
, child_tidptr=0x555587457690) = 12396
[pid 12396] set_robust_list(0x5555874576a0, 24) = 0
[pid 12396] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12396] setpgid(0, 0)               = 0
[pid 12396] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12396] write(3, "1000", 4)         = 4
[pid 12396] close(3)                    = 0
[pid 12396] write(1, "executing program\n", 18executing program
) = 18
[pid 12396] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12396] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12396] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12396] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12396] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12396] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12396] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12397 attached
 => {parent_tid=[12397]}, 88) = 12397
[pid 12397] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12397] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12397] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12396] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12396] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12397] <... futex resumed>)        = 0
[pid 12397] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12397] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12397] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12396] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12396] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12397] <... futex resumed>)        = 0
[pid 12397] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12397] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12397] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12396] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12396] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12397] <... futex resumed>)        = 0
[pid 12397] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12397] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12397] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12396] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12396] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12397] <... futex resumed>)        = 0
[pid 12397] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12397] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12397] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12396] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12396] exit_group(0)               = ?
[pid 12397] <... futex resumed>)        = ?
[pid 12397] +++ exited with 0 +++
[pid 12396] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12396, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12398 attached
, child_tidptr=0x555587457690) = 12398
[pid 12398] set_robust_list(0x5555874576a0, 24) = 0
[pid 12398] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12398] setpgid(0, 0)               = 0
[pid 12398] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12398] write(3, "1000", 4)         = 4
[pid 12398] close(3executing program
)                    = 0
[pid 12398] write(1, "executing program\n", 18) = 18
[pid 12398] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12398] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12398] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12398] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12398] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12398] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12398] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12399 attached
 => {parent_tid=[12399]}, 88) = 12399
[pid 12398] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12398] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12398] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12399] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12399] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12399] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12399] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12398] <... futex resumed>)        = 0
[pid 12398] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12398] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12399] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12399] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12398] <... futex resumed>)        = 0
[pid 12398] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12398] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12399] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12399] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12398] <... futex resumed>)        = 0
[pid 12398] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12398] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12399] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12399] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12398] <... futex resumed>)        = 0
[pid 12398] exit_group(0)               = ?
[pid 12399] +++ exited with 0 +++
[pid 12398] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12398, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12400 attached
, child_tidptr=0x555587457690) = 12400
[pid 12400] set_robust_list(0x5555874576a0, 24) = 0
[pid 12400] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12400] setpgid(0, 0)               = 0
[pid 12400] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12400] write(3, "1000", 4)         = 4
[pid 12400] close(3)                    = 0
[pid 12400] write(1, "executing program\n", 18executing program
) = 18
[pid 12400] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12400] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12400] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12400] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12400] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12400] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12400] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12401 attached
 => {parent_tid=[12401]}, 88) = 12401
[pid 12401] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12401] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12401] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12400] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12400] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12401] <... futex resumed>)        = 0
[pid 12400] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12401] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12401] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12401] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12400] <... futex resumed>)        = 0
[pid 12400] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12401] <... futex resumed>)        = 0
[pid 12400] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12401] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12401] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12401] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12400] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12400] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12401] <... futex resumed>)        = 0
[pid 12401] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12400] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12401] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12401] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12400] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12400] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12400] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12401] <... futex resumed>)        = 0
[pid 12401] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12401] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12400] <... futex resumed>)        = 0
[pid 12401] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12400] exit_group(0)               = ?
[pid 12401] <... futex resumed>)        = ?
[pid 12401] +++ exited with 0 +++
[pid 12400] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12400, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12402
./strace-static-x86_64: Process 12402 attached
[pid 12402] set_robust_list(0x5555874576a0, 24) = 0
[pid 12402] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12402] setpgid(0, 0)               = 0
[pid 12402] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12402] write(3, "1000", 4)         = 4
[pid 12402] close(3)                    = 0
[pid 12402] write(1, "executing program\n", 18executing program
) = 18
[pid 12402] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12402] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12402] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12402] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12402] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12402] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12402] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12403 attached
 <unfinished ...>
[pid 12403] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12402] <... clone3 resumed> => {parent_tid=[12403]}, 88) = 12403
[pid 12402] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12402] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12402] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12403] <... set_robust_list resumed>) = 0
[pid 12403] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12403] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12403] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12402] <... futex resumed>)        = 0
[pid 12402] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12402] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12403] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12403] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12402] <... futex resumed>)        = 0
[pid 12402] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12402] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12403] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12403] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12402] <... futex resumed>)        = 0
[pid 12402] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12402] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12403] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12403] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12402] <... futex resumed>)        = 0
[pid 12402] exit_group(0)               = ?
[pid 12403] +++ exited with 0 +++
[pid 12402] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12402, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12404
./strace-static-x86_64: Process 12404 attached
[pid 12404] set_robust_list(0x5555874576a0, 24) = 0
[pid 12404] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12404] setpgid(0, 0)               = 0
[pid 12404] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12404] write(3, "1000", 4)         = 4
[pid 12404] close(3)                    = 0
[pid 12404] write(1, "executing program\n", 18executing program
) = 18
[pid 12404] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12404] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12404] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12404] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12404] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12404] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12404] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12405 attached
 => {parent_tid=[12405]}, 88) = 12405
[pid 12405] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12405] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12405] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12404] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12404] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12405] <... futex resumed>)        = 0
[pid 12405] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12404] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12405] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12405] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12405] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12404] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12404] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12405] <... futex resumed>)        = 0
[pid 12404] <... futex resumed>)        = 1
[pid 12405] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12404] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12405] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12405] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12404] <... futex resumed>)        = 0
[pid 12404] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12404] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12405] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12405] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12404] <... futex resumed>)        = 0
[pid 12404] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12404] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12405] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12405] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12404] <... futex resumed>)        = 0
[pid 12404] exit_group(0)               = ?
[pid 12405] +++ exited with 0 +++
[pid 12404] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12404, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12406
./strace-static-x86_64: Process 12406 attached
[pid 12406] set_robust_list(0x5555874576a0, 24) = 0
[pid 12406] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12406] setpgid(0, 0)               = 0
[pid 12406] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12406] write(3, "1000", 4)         = 4
[pid 12406] close(3)                    = 0
executing program
[pid 12406] write(1, "executing program\n", 18) = 18
[pid 12406] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12406] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12406] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12406] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12406] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12406] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12406] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12407]}, 88) = 12407
./strace-static-x86_64: Process 12407 attached
[pid 12407] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12407] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12407] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12406] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12406] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12407] <... futex resumed>)        = 0
[pid 12407] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12406] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12407] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12407] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12406] <... futex resumed>)        = 0
[pid 12406] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12406] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12407] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12407] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12406] <... futex resumed>)        = 0
[pid 12406] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12406] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12407] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12407] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12406] <... futex resumed>)        = 0
[pid 12406] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12406] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12407] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12407] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12407] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12406] <... futex resumed>)        = 0
[pid 12406] exit_group(0)               = ?
[pid 12407] <... futex resumed>)        = ?
[pid 12407] +++ exited with 0 +++
[pid 12406] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12406, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12408 attached
, child_tidptr=0x555587457690) = 12408
[pid 12408] set_robust_list(0x5555874576a0, 24) = 0
[pid 12408] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12408] setpgid(0, 0)               = 0
[pid 12408] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12408] write(3, "1000", 4)         = 4
[pid 12408] close(3)                    = 0
[pid 12408] write(1, "executing program\n", 18executing program
) = 18
[pid 12408] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12408] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12408] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12408] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12408] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12408] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12408] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12409 attached
 => {parent_tid=[12409]}, 88) = 12409
[pid 12408] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12408] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12408] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12409] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12409] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12409] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12409] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12408] <... futex resumed>)        = 0
[pid 12408] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12409] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12408] <... futex resumed>)        = 0
[pid 12409] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12408] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12409] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12408] <... futex resumed>)        = 0
[pid 12408] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12408] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12409] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12409] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12408] <... futex resumed>)        = 0
[pid 12408] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12408] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12409] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12409] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12408] <... futex resumed>)        = 0
[pid 12408] exit_group(0 <unfinished ...>
[pid 12409] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12408] <... exit_group resumed>)   = ?
[pid 12409] <... futex resumed>)        = ?
[pid 12409] +++ exited with 0 +++
[pid 12408] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12408, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12410 attached
 <unfinished ...>
[pid 12410] set_robust_list(0x5555874576a0, 24) = 0
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 12410
[pid 12410] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12410] setpgid(0, 0)               = 0
[pid 12410] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12410] write(3, "1000", 4)         = 4
[pid 12410] close(3executing program
)                    = 0
[pid 12410] write(1, "executing program\n", 18) = 18
[pid 12410] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12410] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12410] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12410] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12410] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12410] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12410] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12411]}, 88) = 12411
[pid 12410] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12410] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12410] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12411 attached
 <unfinished ...>
[pid 12411] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12411] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12411] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12411] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12410] <... futex resumed>)        = 0
[pid 12410] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12410] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12411] <... futex resumed>)        = 1
[pid 12411] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12411] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12410] <... futex resumed>)        = 0
[pid 12410] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12410] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12411] <... futex resumed>)        = 1
[pid 12411] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12411] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12410] <... futex resumed>)        = 0
[pid 12410] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12410] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12411] <... futex resumed>)        = 1
[pid 12411] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12411] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12410] <... futex resumed>)        = 0
[pid 12410] exit_group(0)               = ?
[pid 12411] <... futex resumed>)        = ?
[pid 12411] +++ exited with 0 +++
[pid 12410] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12410, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12412
./strace-static-x86_64: Process 12412 attached
[pid 12412] set_robust_list(0x5555874576a0, 24) = 0
[pid 12412] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12412] setpgid(0, 0)               = 0
[pid 12412] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12412] write(3, "1000", 4)         = 4
[pid 12412] close(3)                    = 0
[pid 12412] write(1, "executing program\n", 18executing program
) = 18
[pid 12412] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12412] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12412] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12412] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12412] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12412] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12412] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12413 attached
 => {parent_tid=[12413]}, 88) = 12413
[pid 12413] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12412] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12412] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12412] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12413] <... set_robust_list resumed>) = 0
[pid 12413] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12413] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12413] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12412] <... futex resumed>)        = 0
[pid 12412] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12412] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12413] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12413] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12412] <... futex resumed>)        = 0
[pid 12412] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12412] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12413] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12413] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12412] <... futex resumed>)        = 0
[pid 12412] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12412] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12413] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12413] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12412] <... futex resumed>)        = 0
[pid 12412] exit_group(0)               = ?
[pid 12413] +++ exited with 0 +++
[pid 12412] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12412, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12414 attached
, child_tidptr=0x555587457690) = 12414
[pid 12414] set_robust_list(0x5555874576a0, 24) = 0
[pid 12414] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12414] setpgid(0, 0)               = 0
[pid 12414] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12414] write(3, "1000", 4executing program
)         = 4
[pid 12414] close(3)                    = 0
[pid 12414] write(1, "executing program\n", 18) = 18
[pid 12414] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12414] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12414] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12414] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12414] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12414] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12414] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12415]}, 88) = 12415
[pid 12414] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12414] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12414] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12415 attached
 <unfinished ...>
[pid 12415] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12415] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12415] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12415] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12414] <... futex resumed>)        = 0
[pid 12414] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12414] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12415] <... futex resumed>)        = 1
[pid 12415] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12415] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12414] <... futex resumed>)        = 0
[pid 12414] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12414] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12415] <... futex resumed>)        = 1
[pid 12415] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12415] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12414] <... futex resumed>)        = 0
[pid 12414] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12414] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12415] <... futex resumed>)        = 1
[pid 12415] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12415] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12414] <... futex resumed>)        = 0
[pid 12414] exit_group(0)               = ?
[pid 12415] <... futex resumed>)        = ?
[pid 12415] +++ exited with 0 +++
[pid 12414] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12414, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12416
./strace-static-x86_64: Process 12416 attached
[pid 12416] set_robust_list(0x5555874576a0, 24) = 0
[pid 12416] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12416] setpgid(0, 0)               = 0
[pid 12416] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12416] write(3, "1000", 4)         = 4
[pid 12416] close(3)                    = 0
[pid 12416] write(1, "executing program\n", 18executing program
) = 18
[pid 12416] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12416] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12416] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12416] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12416] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12416] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12416] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12417 attached
 => {parent_tid=[12417]}, 88) = 12417
[pid 12417] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12417] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12417] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12416] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12416] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12417] <... futex resumed>)        = 0
[pid 12417] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12417] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12417] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12416] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12416] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12417] <... futex resumed>)        = 0
[pid 12417] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12417] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12417] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12416] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12416] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12417] <... futex resumed>)        = 0
[pid 12417] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12417] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12417] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12416] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12416] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12417] <... futex resumed>)        = 0
[pid 12416] <... futex resumed>)        = 1
[pid 12417] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12417] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12417] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12416] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12416] exit_group(0)               = ?
[pid 12417] <... futex resumed>)        = ?
[pid 12417] +++ exited with 0 +++
[pid 12416] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12416, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12418
./strace-static-x86_64: Process 12418 attached
[pid 12418] set_robust_list(0x5555874576a0, 24) = 0
[pid 12418] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12418] setpgid(0, 0)               = 0
[pid 12418] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12418] write(3, "1000", 4)         = 4
[pid 12418] close(3)                    = 0
[pid 12418] write(1, "executing program\n", 18executing program
) = 18
[pid 12418] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12418] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12418] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12418] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12418] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12418] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12418] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12419 attached
 => {parent_tid=[12419]}, 88) = 12419
[pid 12419] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12419] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12418] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12419] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12419] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12418] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12418] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12419] <... futex resumed>)        = 0
[pid 12419] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12418] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12419] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12419] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12419] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12418] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12418] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12419] <... futex resumed>)        = 0
[pid 12419] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12419] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12419] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12418] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12418] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12419] <... futex resumed>)        = 0
[pid 12419] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12419] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12419] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12418] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12418] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12419] <... futex resumed>)        = 0
[pid 12419] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12419] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12419] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12418] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12418] exit_group(0)               = ?
[pid 12419] <... futex resumed>)        = ?
[pid 12419] +++ exited with 0 +++
[pid 12418] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12418, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12420
./strace-static-x86_64: Process 12420 attached
[pid 12420] set_robust_list(0x5555874576a0, 24) = 0
[pid 12420] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12420] setpgid(0, 0)               = 0
[pid 12420] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12420] write(3, "1000", 4)         = 4
[pid 12420] close(3)                    = 0
[pid 12420] write(1, "executing program\n", 18executing program
) = 18
[pid 12420] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12420] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12420] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12420] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12420] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12420] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12420] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12421]}, 88) = 12421
[pid 12420] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12420] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12420] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12421 attached
 <unfinished ...>
[pid 12421] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12421] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12421] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12421] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12420] <... futex resumed>)        = 0
[pid 12420] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12420] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12421] <... futex resumed>)        = 1
[pid 12421] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12421] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12420] <... futex resumed>)        = 0
[pid 12421] <... futex resumed>)        = 1
[pid 12420] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12420] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12421] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12421] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12420] <... futex resumed>)        = 0
[pid 12421] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12420] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12420] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12421] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12421] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12421] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12420] <... futex resumed>)        = 0
[pid 12420] exit_group(0)               = ?
[pid 12421] +++ exited with 0 +++
[pid 12420] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12420, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12422
./strace-static-x86_64: Process 12422 attached
[pid 12422] set_robust_list(0x5555874576a0, 24) = 0
[pid 12422] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12422] setpgid(0, 0)               = 0
[pid 12422] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12422] write(3, "1000", 4)         = 4
[pid 12422] close(3)                    = 0
executing program
[pid 12422] write(1, "executing program\n", 18) = 18
[pid 12422] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12422] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12422] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12422] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12422] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12422] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12422] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12423]}, 88) = 12423
[pid 12422] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12422] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12422] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12423 attached
 <unfinished ...>
[pid 12423] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12423] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12423] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12423] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12422] <... futex resumed>)        = 0
[pid 12422] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12422] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12423] <... futex resumed>)        = 1
[pid 12423] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12423] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12422] <... futex resumed>)        = 0
[pid 12422] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12422] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12423] <... futex resumed>)        = 1
[pid 12423] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12423] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12422] <... futex resumed>)        = 0
[pid 12422] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12422] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12423] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12423] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12422] <... futex resumed>)        = 0
[pid 12422] exit_group(0)               = ?
[pid 12423] +++ exited with 0 +++
[pid 12422] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12422, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12424
./strace-static-x86_64: Process 12424 attached
[pid 12424] set_robust_list(0x5555874576a0, 24) = 0
[pid 12424] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12424] setpgid(0, 0)               = 0
[pid 12424] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12424] write(3, "1000", 4)         = 4
[pid 12424] close(3)                    = 0
executing program
[pid 12424] write(1, "executing program\n", 18) = 18
[pid 12424] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12424] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12424] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12424] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12424] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12424] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12424] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12425 attached
 => {parent_tid=[12425]}, 88) = 12425
[pid 12425] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12425] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12425] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12424] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12424] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12425] <... futex resumed>)        = 0
[pid 12425] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12424] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12425] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12425] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12424] <... futex resumed>)        = 0
[pid 12424] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12425] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12424] <... futex resumed>)        = 0
[pid 12425] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12424] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12425] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12424] <... futex resumed>)        = 0
[pid 12424] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12424] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12425] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12425] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12424] <... futex resumed>)        = 0
[pid 12424] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12424] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12425] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12425] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12425] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12424] <... futex resumed>)        = 0
[pid 12424] exit_group(0)               = ?
[pid 12425] <... futex resumed>)        = ?
[pid 12425] +++ exited with 0 +++
[pid 12424] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12424, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12426
./strace-static-x86_64: Process 12426 attached
[pid 12426] set_robust_list(0x5555874576a0, 24) = 0
[pid 12426] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12426] setpgid(0, 0)               = 0
[pid 12426] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12426] write(3, "1000", 4)         = 4
[pid 12426] close(3executing program
)                    = 0
[pid 12426] write(1, "executing program\n", 18) = 18
[pid 12426] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12426] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12426] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12426] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12426] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12426] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12426] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12427]}, 88) = 12427
./strace-static-x86_64: Process 12427 attached
[pid 12426] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12426] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12426] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12427] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12427] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12427] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12427] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12426] <... futex resumed>)        = 0
[pid 12426] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12426] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12427] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12427] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12426] <... futex resumed>)        = 0
[pid 12426] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12426] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12427] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12427] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12426] <... futex resumed>)        = 0
[pid 12426] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12426] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12427] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12427] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12426] <... futex resumed>)        = 0
[pid 12426] exit_group(0)               = ?
[pid 12427] +++ exited with 0 +++
[pid 12426] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12426, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12428 attached
 <unfinished ...>
[pid 12428] set_robust_list(0x5555874576a0, 24) = 0
[pid 12428] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12428] setpgid(0, 0)               = 0
[pid 12428] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 12428
[pid 12428] <... openat resumed>)       = 3
[pid 12428] write(3, "1000", 4)         = 4
[pid 12428] close(3)                    = 0
[pid 12428] write(1, "executing program\n", 18executing program
) = 18
[pid 12428] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12428] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12428] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12428] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12428] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12428] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12428] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12429]}, 88) = 12429
./strace-static-x86_64: Process 12429 attached
[pid 12428] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12428] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12428] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12429] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12429] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12429] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12429] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12428] <... futex resumed>)        = 0
[pid 12428] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12428] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12429] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12429] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12428] <... futex resumed>)        = 0
[pid 12428] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12428] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12429] <... futex resumed>)        = 1
[pid 12429] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12429] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12428] <... futex resumed>)        = 0
[pid 12428] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12428] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12429] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12429] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12428] <... futex resumed>)        = 0
[pid 12428] exit_group(0)               = ?
[pid 12429] +++ exited with 0 +++
[pid 12428] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12428, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12430
./strace-static-x86_64: Process 12430 attached
[pid 12430] set_robust_list(0x5555874576a0, 24) = 0
[pid 12430] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12430] setpgid(0, 0)               = 0
[pid 12430] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12430] write(3, "1000", 4)         = 4
[pid 12430] close(3)                    = 0
executing program
[pid 12430] write(1, "executing program\n", 18) = 18
[pid 12430] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12430] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12430] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12430] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12430] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12430] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12430] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12431 attached
 => {parent_tid=[12431]}, 88) = 12431
[pid 12431] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12430] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12430] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12430] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12431] <... set_robust_list resumed>) = 0
[pid 12431] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12431] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12431] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12430] <... futex resumed>)        = 0
[pid 12430] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12430] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12431] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12431] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12430] <... futex resumed>)        = 0
[pid 12430] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12430] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12431] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12431] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12430] <... futex resumed>)        = 0
[pid 12430] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12430] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12431] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12431] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12430] <... futex resumed>)        = 0
[pid 12430] exit_group(0)               = ?
[pid 12431] +++ exited with 0 +++
[pid 12430] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12430, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12432
./strace-static-x86_64: Process 12432 attached
[pid 12432] set_robust_list(0x5555874576a0, 24) = 0
[pid 12432] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12432] setpgid(0, 0)               = 0
[pid 12432] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12432] write(3, "1000", 4)         = 4
[pid 12432] close(3)                    = 0
[pid 12432] write(1, "executing program\n", 18executing program
) = 18
[pid 12432] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12432] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12432] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12432] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12432] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12432] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12432] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12433 attached
 => {parent_tid=[12433]}, 88) = 12433
[pid 12433] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12433] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12433] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12432] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12432] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12433] <... futex resumed>)        = 0
[pid 12433] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12433] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12433] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12432] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12432] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12433] <... futex resumed>)        = 0
[pid 12433] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12433] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12433] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12432] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12432] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12433] <... futex resumed>)        = 0
[pid 12433] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12433] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12433] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12432] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12432] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12433] <... futex resumed>)        = 0
[pid 12432] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12433] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12433] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12433] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12432] <... futex resumed>)        = 0
[pid 12432] exit_group(0)               = ?
[pid 12433] <... futex resumed>)        = ?
[pid 12433] +++ exited with 0 +++
[pid 12432] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12432, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12434
./strace-static-x86_64: Process 12434 attached
[pid 12434] set_robust_list(0x5555874576a0, 24) = 0
[pid 12434] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12434] setpgid(0, 0)               = 0
[pid 12434] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12434] write(3, "1000", 4)         = 4
[pid 12434] close(3)                    = 0
[pid 12434] write(1, "executing program\n", 18executing program
) = 18
[pid 12434] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12434] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12434] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12434] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12434] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12434] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12434] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12435 attached
 => {parent_tid=[12435]}, 88) = 12435
[pid 12434] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12434] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12434] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12435] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12435] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12435] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12435] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12435] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12434] <... futex resumed>)        = 0
[pid 12434] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12435] <... futex resumed>)        = 0
[pid 12435] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12435] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12435] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12434] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12434] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12435] <... futex resumed>)        = 0
[pid 12435] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12434] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12435] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12435] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12434] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12434] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12435] <... futex resumed>)        = 0
[pid 12435] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12434] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12435] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12435] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12435] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12434] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12434] exit_group(0)               = ?
[pid 12435] <... futex resumed>)        = ?
[pid 12435] +++ exited with 0 +++
[pid 12434] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12434, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12436
./strace-static-x86_64: Process 12436 attached
[pid 12436] set_robust_list(0x5555874576a0, 24) = 0
[pid 12436] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12436] setpgid(0, 0)               = 0
[pid 12436] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12436] write(3, "1000", 4)         = 4
[pid 12436] close(3)                    = 0
[pid 12436] write(1, "executing program\n", 18executing program
) = 18
[pid 12436] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12436] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12436] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12436] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12436] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12436] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12436] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12437]}, 88) = 12437
[pid 12436] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12436] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12436] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12437 attached
 <unfinished ...>
[pid 12437] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12437] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12437] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12437] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12436] <... futex resumed>)        = 0
[pid 12436] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12436] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12437] <... futex resumed>)        = 1
[pid 12437] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12437] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12436] <... futex resumed>)        = 0
[pid 12436] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12436] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12437] <... futex resumed>)        = 1
[pid 12437] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12437] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12436] <... futex resumed>)        = 0
[pid 12436] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12436] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12437] <... futex resumed>)        = 1
[pid 12437] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12437] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12436] <... futex resumed>)        = 0
[pid 12436] exit_group(0)               = ?
[pid 12437] <... futex resumed>)        = ?
[pid 12437] +++ exited with 0 +++
[pid 12436] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12436, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12438
./strace-static-x86_64: Process 12438 attached
[pid 12438] set_robust_list(0x5555874576a0, 24) = 0
[pid 12438] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12438] setpgid(0, 0)               = 0
[pid 12438] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12438] write(3, "1000", 4)         = 4
[pid 12438] close(3)                    = 0
[pid 12438] write(1, "executing program\n", 18executing program
) = 18
[pid 12438] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12438] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12438] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12438] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12438] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12438] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12438] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12439 attached
 => {parent_tid=[12439]}, 88) = 12439
[pid 12439] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12438] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12439] <... set_robust_list resumed>) = 0
[pid 12439] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12439] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12438] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12438] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12438] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12439] <... futex resumed>)        = 0
[pid 12439] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12439] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12439] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12438] <... futex resumed>)        = 0
[pid 12438] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12438] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12439] <... futex resumed>)        = 0
[pid 12439] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12439] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12438] <... futex resumed>)        = 0
[pid 12438] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12438] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12439] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12439] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12438] <... futex resumed>)        = 0
[pid 12438] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12438] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12439] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12439] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12438] <... futex resumed>)        = 0
[pid 12439] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12438] exit_group(0)               = ?
[pid 12439] <... futex resumed>)        = ?
[pid 12439] +++ exited with 0 +++
[pid 12438] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12438, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12440
./strace-static-x86_64: Process 12440 attached
[pid 12440] set_robust_list(0x5555874576a0, 24) = 0
[pid 12440] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12440] setpgid(0, 0)               = 0
[pid 12440] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12440] write(3, "1000", 4)         = 4
executing program
[pid 12440] close(3)                    = 0
[pid 12440] write(1, "executing program\n", 18) = 18
[pid 12440] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12440] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12440] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12440] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12440] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12440] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12440] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12441]}, 88) = 12441
[pid 12440] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12440] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12440] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12441 attached
 <unfinished ...>
[pid 12441] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12441] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12441] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12441] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12440] <... futex resumed>)        = 0
[pid 12440] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12440] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12441] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12441] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12440] <... futex resumed>)        = 0
[pid 12440] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12440] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12441] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12441] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12440] <... futex resumed>)        = 0
[pid 12440] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12440] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12441] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12441] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12440] <... futex resumed>)        = 0
[pid 12440] exit_group(0)               = ?
[pid 12441] +++ exited with 0 +++
[pid 12440] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12440, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12442 attached
 <unfinished ...>
[pid 12442] set_robust_list(0x5555874576a0, 24) = 0
[pid 12442] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12442] setpgid(0, 0)               = 0
[pid 12442] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 12442
[pid 12442] <... openat resumed>)       = 3
[pid 12442] write(3, "1000", 4)         = 4
[pid 12442] close(3executing program
)                    = 0
[pid 12442] write(1, "executing program\n", 18) = 18
[pid 12442] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12442] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12442] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12442] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12442] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12442] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12442] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12443]}, 88) = 12443
./strace-static-x86_64: Process 12443 attached
[pid 12442] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12443] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12442] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12443] <... set_robust_list resumed>) = 0
[pid 12442] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12443] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12442] <... futex resumed>)        = 0
[pid 12443] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12443] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12442] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12443] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12443] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12442] <... futex resumed>)        = 0
[pid 12442] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12443] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12442] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12443] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12443] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12442] <... futex resumed>)        = 0
[pid 12442] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12442] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12443] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12443] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12442] <... futex resumed>)        = 0
[pid 12442] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12442] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12443] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12443] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12442] <... futex resumed>)        = 0
[pid 12442] exit_group(0)               = ?
[pid 12443] +++ exited with 0 +++
[pid 12442] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12442, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12444
./strace-static-x86_64: Process 12444 attached
[pid 12444] set_robust_list(0x5555874576a0, 24) = 0
[pid 12444] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12444] setpgid(0, 0)               = 0
[pid 12444] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12444] write(3, "1000", 4)         = 4
[pid 12444] close(3)                    = 0
[pid 12444] write(1, "executing program\n", 18executing program
) = 18
[pid 12444] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12444] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12444] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12444] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12444] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12444] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12444] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12445]}, 88) = 12445
./strace-static-x86_64: Process 12445 attached
[pid 12444] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12444] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12444] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12445] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12445] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12445] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12445] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12444] <... futex resumed>)        = 0
[pid 12444] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12445] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12444] <... futex resumed>)        = 0
[pid 12445] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12444] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12445] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12444] <... futex resumed>)        = 0
[pid 12445] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12444] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12445] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12444] <... futex resumed>)        = 0
[pid 12445] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12444] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12445] <... futex resumed>)        = 0
[pid 12444] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12445] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12444] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12445] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12444] <... futex resumed>)        = 0
[pid 12445] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12444] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12445] <... futex resumed>)        = 0
[pid 12444] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12445] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12444] exit_group(0 <unfinished ...>
[pid 12445] <... futex resumed>)        = ?
[pid 12444] <... exit_group resumed>)   = ?
[pid 12445] +++ exited with 0 +++
[pid 12444] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12444, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12446
./strace-static-x86_64: Process 12446 attached
[pid 12446] set_robust_list(0x5555874576a0, 24) = 0
[pid 12446] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12446] setpgid(0, 0)               = 0
[pid 12446] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12446] write(3, "1000", 4)         = 4
[pid 12446] close(3executing program
)                    = 0
[pid 12446] write(1, "executing program\n", 18) = 18
[pid 12446] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12446] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12446] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12446] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12446] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12446] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12446] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12447 attached
 => {parent_tid=[12447]}, 88) = 12447
[pid 12446] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12446] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12446] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12447] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12447] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12447] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12447] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12446] <... futex resumed>)        = 0
[pid 12446] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12446] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12447] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12447] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12446] <... futex resumed>)        = 0
[pid 12446] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12446] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12447] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12447] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12446] <... futex resumed>)        = 0
[pid 12446] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12447] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12446] <... futex resumed>)        = 0
[pid 12446] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12447] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12447] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12446] <... futex resumed>)        = 0
[pid 12446] exit_group(0)               = ?
[pid 12447] +++ exited with 0 +++
[pid 12446] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12446, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12448
./strace-static-x86_64: Process 12448 attached
[pid 12448] set_robust_list(0x5555874576a0, 24) = 0
[pid 12448] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12448] setpgid(0, 0)               = 0
[pid 12448] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12448] write(3, "1000", 4)         = 4
[pid 12448] close(3)                    = 0
executing program
[pid 12448] write(1, "executing program\n", 18) = 18
[pid 12448] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12448] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12448] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12448] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12448] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12448] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12448] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12449 attached
 => {parent_tid=[12449]}, 88) = 12449
[pid 12449] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12448] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12449] <... set_robust_list resumed>) = 0
[pid 12448] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12449] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12448] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12449] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12448] <... futex resumed>)        = 0
[pid 12449] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12448] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12449] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12449] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12448] <... futex resumed>)        = 0
[pid 12448] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12449] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12448] <... futex resumed>)        = 0
[pid 12448] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12449] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12449] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12448] <... futex resumed>)        = 0
[pid 12448] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12448] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12449] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12449] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12448] <... futex resumed>)        = 0
[pid 12448] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12448] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12449] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12449] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12448] <... futex resumed>)        = 0
[pid 12449] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12448] exit_group(0)               = ?
[pid 12449] <... futex resumed>)        = ?
[pid 12449] +++ exited with 0 +++
[pid 12448] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12448, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12450
./strace-static-x86_64: Process 12450 attached
[pid 12450] set_robust_list(0x5555874576a0, 24) = 0
[pid 12450] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12450] setpgid(0, 0)               = 0
[pid 12450] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12450] write(3, "1000", 4)         = 4
[pid 12450] close(3executing program
)                    = 0
[pid 12450] write(1, "executing program\n", 18) = 18
[pid 12450] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12450] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12450] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12450] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12450] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12450] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12450] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12451 attached
 <unfinished ...>
[pid 12451] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12450] <... clone3 resumed> => {parent_tid=[12451]}, 88) = 12451
[pid 12451] <... set_robust_list resumed>) = 0
[pid 12450] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12451] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12450] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12451] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12450] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12451] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12450] <... futex resumed>)        = 0
[pid 12451] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12450] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12451] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12450] <... futex resumed>)        = 0
[pid 12451] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12450] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12451] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12450] <... futex resumed>)        = 0
[pid 12451] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12450] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12451] <... futex resumed>)        = 0
[pid 12450] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12451] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12450] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12451] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12450] <... futex resumed>)        = 0
[pid 12451] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12450] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12451] <... futex resumed>)        = 0
[pid 12450] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12451] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12450] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12451] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12450] <... futex resumed>)        = 0
[pid 12451] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12450] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12451] <... futex resumed>)        = 0
[pid 12450] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12451] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12450] exit_group(0 <unfinished ...>
[pid 12451] <... futex resumed>)        = ?
[pid 12450] <... exit_group resumed>)   = ?
[pid 12451] +++ exited with 0 +++
[pid 12450] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12450, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program
, child_tidptr=0x555587457690) = 12452
./strace-static-x86_64: Process 12452 attached
[pid 12452] set_robust_list(0x5555874576a0, 24) = 0
[pid 12452] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12452] setpgid(0, 0)               = 0
[pid 12452] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12452] write(3, "1000", 4)         = 4
[pid 12452] close(3)                    = 0
[pid 12452] write(1, "executing program\n", 18) = 18
[pid 12452] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12452] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12452] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12452] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12452] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12452] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12452] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12453]}, 88) = 12453
[pid 12452] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12452] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12452] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12453 attached
 <unfinished ...>
[pid 12453] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12453] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12453] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12453] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12452] <... futex resumed>)        = 0
[pid 12452] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12452] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12453] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12453] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12452] <... futex resumed>)        = 0
[pid 12452] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12452] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12453] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12453] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12452] <... futex resumed>)        = 0
[pid 12452] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12452] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12453] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12453] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12452] <... futex resumed>)        = 0
[pid 12452] exit_group(0)               = ?
[pid 12453] +++ exited with 0 +++
[pid 12452] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12452, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12454
./strace-static-x86_64: Process 12454 attached
[pid 12454] set_robust_list(0x5555874576a0, 24) = 0
[pid 12454] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12454] setpgid(0, 0)               = 0
[pid 12454] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12454] write(3, "1000", 4)         = 4
[pid 12454] close(3)                    = 0
[pid 12454] write(1, "executing program\n", 18executing program
) = 18
[pid 12454] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12454] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12454] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12454] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12454] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12454] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12454] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12455]}, 88) = 12455
[pid 12454] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12454] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12454] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12455 attached
 <unfinished ...>
[pid 12455] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12455] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12455] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12455] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12454] <... futex resumed>)        = 0
[pid 12455] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12454] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12455] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12455] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12454] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12455] <... futex resumed>)        = 0
[pid 12454] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12455] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12454] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12455] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12454] <... futex resumed>)        = 0
[pid 12455] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12454] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12455] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12455] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12454] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12455] <... futex resumed>)        = 0
[pid 12454] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12455] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12454] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12455] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12454] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12455] <... futex resumed>)        = 0
[pid 12455] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12454] exit_group(0)               = ?
[pid 12455] <... futex resumed>)        = ?
[pid 12455] +++ exited with 0 +++
[pid 12454] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12454, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12456
./strace-static-x86_64: Process 12456 attached
[pid 12456] set_robust_list(0x5555874576a0, 24) = 0
[pid 12456] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12456] setpgid(0, 0)               = 0
[pid 12456] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12456] write(3, "1000", 4)         = 4
[pid 12456] close(3)                    = 0
executing program
[pid 12456] write(1, "executing program\n", 18) = 18
[pid 12456] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12456] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12456] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12456] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12456] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12456] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12456] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12457]}, 88) = 12457
[pid 12456] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12456] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12456] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12457 attached
 <unfinished ...>
[pid 12457] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12457] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12457] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12457] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12456] <... futex resumed>)        = 0
[pid 12456] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12456] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12457] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12457] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12456] <... futex resumed>)        = 0
[pid 12456] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12456] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12457] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12457] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12456] <... futex resumed>)        = 0
[pid 12456] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12456] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12457] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12457] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12456] <... futex resumed>)        = 0
[pid 12456] exit_group(0)               = ?
[pid 12457] +++ exited with 0 +++
[pid 12456] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12456, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12458 attached
 <unfinished ...>
[pid 12458] set_robust_list(0x5555874576a0, 24) = 0
[pid 12458] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 12458
[pid 12458] <... prctl resumed>)        = 0
[pid 12458] setpgid(0, 0)               = 0
[pid 12458] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12458] write(3, "1000", 4)         = 4
[pid 12458] close(3)                    = 0
[pid 12458] write(1, "executing program\n", 18executing program
) = 18
[pid 12458] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12458] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12458] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12458] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12458] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12458] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12458] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12459 attached
 => {parent_tid=[12459]}, 88) = 12459
[pid 12458] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12458] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12458] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12459] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12459] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12459] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12459] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12458] <... futex resumed>)        = 0
[pid 12458] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12458] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12459] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12459] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12458] <... futex resumed>)        = 0
[pid 12458] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12458] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12459] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12459] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12458] <... futex resumed>)        = 0
[pid 12458] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12458] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12459] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12459] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12458] <... futex resumed>)        = 0
[pid 12458] exit_group(0)               = ?
[pid 12459] +++ exited with 0 +++
[pid 12458] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12458, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12460 attached
 <unfinished ...>
[pid 12460] set_robust_list(0x5555874576a0, 24) = 0
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 12460
[pid 12460] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12460] setpgid(0, 0)               = 0
[pid 12460] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
executing program
[pid 12460] write(3, "1000", 4)         = 4
[pid 12460] close(3)                    = 0
[pid 12460] write(1, "executing program\n", 18) = 18
[pid 12460] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12460] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12460] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12460] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12460] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12460] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12460] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12461]}, 88) = 12461
[pid 12460] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12460] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12460] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12461 attached
 <unfinished ...>
[pid 12461] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12461] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12461] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12461] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12460] <... futex resumed>)        = 0
[pid 12460] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12460] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12461] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12461] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12460] <... futex resumed>)        = 0
[pid 12461] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12460] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12461] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12460] <... futex resumed>)        = 0
[pid 12461] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12460] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12461] <... futex resumed>)        = 0
[pid 12460] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12461] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12460] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12461] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12460] <... futex resumed>)        = 0
[pid 12461] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12460] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12461] <... futex resumed>)        = 0
[pid 12460] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12461] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12460] exit_group(0 <unfinished ...>
[pid 12461] <... futex resumed>)        = ?
[pid 12460] <... exit_group resumed>)   = ?
[pid 12461] +++ exited with 0 +++
[pid 12460] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12460, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12462
./strace-static-x86_64: Process 12462 attached
[pid 12462] set_robust_list(0x5555874576a0, 24) = 0
[pid 12462] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12462] setpgid(0, 0)               = 0
[pid 12462] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12462] write(3, "1000", 4executing program
)         = 4
[pid 12462] close(3)                    = 0
[pid 12462] write(1, "executing program\n", 18) = 18
[pid 12462] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12462] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12462] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12462] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12462] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12462] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12462] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12463 attached
 => {parent_tid=[12463]}, 88) = 12463
[pid 12462] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12462] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12462] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12463] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12463] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12463] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12463] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12462] <... futex resumed>)        = 0
[pid 12463] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12462] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12463] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12462] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12463] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12462] <... futex resumed>)        = 0
[pid 12463] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12462] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12463] <... futex resumed>)        = 0
[pid 12462] <... futex resumed>)        = 1
[pid 12463] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12462] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12463] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12463] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12462] <... futex resumed>)        = 0
[pid 12463] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12462] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12463] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12462] <... futex resumed>)        = 0
[pid 12463] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12462] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12463] <... futex resumed>)        = 0
[pid 12462] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12463] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12462] exit_group(0 <unfinished ...>
[pid 12463] <... futex resumed>)        = ?
[pid 12462] <... exit_group resumed>)   = ?
[pid 12463] +++ exited with 0 +++
[pid 12462] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12462, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12464
./strace-static-x86_64: Process 12464 attached
[pid 12464] set_robust_list(0x5555874576a0, 24) = 0
[pid 12464] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12464] setpgid(0, 0)               = 0
[pid 12464] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12464] write(3, "1000", 4)         = 4
[pid 12464] close(3)                    = 0
executing program
[pid 12464] write(1, "executing program\n", 18) = 18
[pid 12464] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12464] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12464] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12464] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12464] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12464] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12464] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12465 attached
 => {parent_tid=[12465]}, 88) = 12465
[pid 12465] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12464] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12465] <... set_robust_list resumed>) = 0
[pid 12464] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12465] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12464] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12465] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12464] <... futex resumed>)        = 0
[pid 12465] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12464] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12465] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12465] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12464] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12464] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12465] <... futex resumed>)        = 0
[pid 12464] <... futex resumed>)        = 1
[pid 12465] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12465] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12465] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12464] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12464] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12465] <... futex resumed>)        = 0
[pid 12464] <... futex resumed>)        = 1
[pid 12465] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12465] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12465] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12464] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12464] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12465] <... futex resumed>)        = 0
[pid 12464] <... futex resumed>)        = 1
[pid 12465] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12465] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12465] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12464] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12464] exit_group(0 <unfinished ...>
[pid 12465] <... futex resumed>)        = ?
[pid 12464] <... exit_group resumed>)   = ?
[pid 12465] +++ exited with 0 +++
[pid 12464] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12464, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12466
./strace-static-x86_64: Process 12466 attached
[pid 12466] set_robust_list(0x5555874576a0, 24) = 0
[pid 12466] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12466] setpgid(0, 0)               = 0
[pid 12466] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12466] write(3, "1000", 4)         = 4
[pid 12466] close(3)                    = 0
[pid 12466] write(1, "executing program\n", 18executing program
) = 18
[pid 12466] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12466] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12466] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12466] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12466] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12466] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12466] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12467]}, 88) = 12467
[pid 12466] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12466] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12466] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12467 attached
 <unfinished ...>
[pid 12467] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12467] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12467] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12467] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12466] <... futex resumed>)        = 0
[pid 12466] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12466] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12467] <... futex resumed>)        = 1
[pid 12467] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12467] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12466] <... futex resumed>)        = 0
[pid 12466] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12466] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12467] <... futex resumed>)        = 1
[pid 12467] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12467] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12466] <... futex resumed>)        = 0
[pid 12466] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12466] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12467] <... futex resumed>)        = 1
[pid 12467] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12467] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12466] <... futex resumed>)        = 0
[pid 12466] exit_group(0)               = ?
[pid 12467] +++ exited with 0 +++
[pid 12466] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12466, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12468
./strace-static-x86_64: Process 12468 attached
[pid 12468] set_robust_list(0x5555874576a0, 24) = 0
[pid 12468] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12468] setpgid(0, 0)               = 0
[pid 12468] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12468] write(3, "1000", 4)         = 4
executing program
[pid 12468] close(3)                    = 0
[pid 12468] write(1, "executing program\n", 18) = 18
[pid 12468] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12468] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12468] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12468] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12468] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12468] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12468] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12469 attached
 => {parent_tid=[12469]}, 88) = 12469
[pid 12469] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12468] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12469] <... set_robust_list resumed>) = 0
[pid 12468] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12469] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12468] <... futex resumed>)        = 0
[pid 12469] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12469] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12468] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12469] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12469] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12468] <... futex resumed>)        = 0
[pid 12468] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12468] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12469] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12469] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12468] <... futex resumed>)        = 0
[pid 12468] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12468] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12469] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12469] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12468] <... futex resumed>)        = 0
[pid 12468] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12468] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12469] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12469] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12468] <... futex resumed>)        = 0
[pid 12468] exit_group(0)               = ?
[pid 12469] +++ exited with 0 +++
[pid 12468] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12468, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12470
./strace-static-x86_64: Process 12470 attached
[pid 12470] set_robust_list(0x5555874576a0, 24) = 0
[pid 12470] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12470] setpgid(0, 0)               = 0
[pid 12470] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12470] write(3, "1000", 4)         = 4
[pid 12470] close(3)                    = 0
[pid 12470] write(1, "executing program\n", 18executing program
) = 18
[pid 12470] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12470] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12470] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12470] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12470] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12470] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12470] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12471]}, 88) = 12471
./strace-static-x86_64: Process 12471 attached
[pid 12470] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12470] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12470] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12471] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12471] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12471] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12471] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12470] <... futex resumed>)        = 0
[pid 12470] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12470] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12471] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12471] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12470] <... futex resumed>)        = 0
[pid 12470] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12470] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12471] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12471] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12470] <... futex resumed>)        = 0
[pid 12470] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12470] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12471] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12471] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12470] <... futex resumed>)        = 0
[pid 12470] exit_group(0 <unfinished ...>
[pid 12471] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12470] <... exit_group resumed>)   = ?
[pid 12471] <... futex resumed>)        = ?
[pid 12471] +++ exited with 0 +++
[pid 12470] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12470, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12472
./strace-static-x86_64: Process 12472 attached
[pid 12472] set_robust_list(0x5555874576a0, 24) = 0
[pid 12472] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12472] setpgid(0, 0)               = 0
[pid 12472] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12472] write(3, "1000", 4)         = 4
[pid 12472] close(3executing program
)                    = 0
[pid 12472] write(1, "executing program\n", 18) = 18
[pid 12472] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12472] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12472] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12472] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12472] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12472] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12472] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12473 attached
 => {parent_tid=[12473]}, 88) = 12473
[pid 12473] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12472] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12472] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12472] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12473] <... set_robust_list resumed>) = 0
[pid 12473] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12473] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12473] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12472] <... futex resumed>)        = 0
[pid 12472] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12472] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12473] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12473] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12472] <... futex resumed>)        = 0
[pid 12472] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12472] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12473] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12473] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12473] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12472] <... futex resumed>)        = 0
[pid 12472] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12473] <... futex resumed>)        = 0
[pid 12472] <... futex resumed>)        = 1
[pid 12473] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12472] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12473] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12473] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12472] <... futex resumed>)        = 0
[pid 12473] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12472] exit_group(0 <unfinished ...>
[pid 12473] <... futex resumed>)        = ?
[pid 12472] <... exit_group resumed>)   = ?
[pid 12473] +++ exited with 0 +++
[pid 12472] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12472, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12474
./strace-static-x86_64: Process 12474 attached
[pid 12474] set_robust_list(0x5555874576a0, 24) = 0
[pid 12474] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12474] setpgid(0, 0)               = 0
[pid 12474] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12474] write(3, "1000", 4)         = 4
[pid 12474] close(3)                    = 0
[pid 12474] write(1, "executing program\n", 18executing program
) = 18
[pid 12474] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12474] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12474] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12474] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12474] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12474] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12474] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12475 attached
 => {parent_tid=[12475]}, 88) = 12475
[pid 12474] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12474] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12474] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12475] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12475] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12475] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12475] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12474] <... futex resumed>)        = 0
[pid 12475] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12474] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12475] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12474] <... futex resumed>)        = 0
[pid 12475] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12474] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12475] <... futex resumed>)        = 0
[pid 12474] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12475] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12474] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12475] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12474] <... futex resumed>)        = 0
[pid 12475] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12474] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12475] <... futex resumed>)        = 0
[pid 12474] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12475] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12474] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12475] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12474] <... futex resumed>)        = 0
[pid 12475] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12474] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12475] <... futex resumed>)        = 0
[pid 12474] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12475] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12474] exit_group(0 <unfinished ...>
[pid 12475] <... futex resumed>)        = ?
[pid 12474] <... exit_group resumed>)   = ?
[pid 12475] +++ exited with 0 +++
[pid 12474] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12474, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12476
./strace-static-x86_64: Process 12476 attached
[pid 12476] set_robust_list(0x5555874576a0, 24) = 0
[pid 12476] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12476] setpgid(0, 0)               = 0
[pid 12476] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12476] write(3, "1000", 4)         = 4
[pid 12476] close(3executing program
)                    = 0
[pid 12476] write(1, "executing program\n", 18) = 18
[pid 12476] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12476] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12476] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12476] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12476] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12476] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12476] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12477]}, 88) = 12477
[pid 12476] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12476] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12476] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12477 attached
 <unfinished ...>
[pid 12477] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12477] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12477] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12477] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12476] <... futex resumed>)        = 0
[pid 12476] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12476] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12477] <... futex resumed>)        = 1
[pid 12477] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12477] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12476] <... futex resumed>)        = 0
[pid 12476] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12476] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12477] <... futex resumed>)        = 1
[pid 12477] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12477] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12476] <... futex resumed>)        = 0
[pid 12476] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12476] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12477] <... futex resumed>)        = 1
[pid 12477] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12477] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12476] <... futex resumed>)        = 0
[pid 12476] exit_group(0)               = ?
[pid 12477] <... futex resumed>)        = ?
[pid 12477] +++ exited with 0 +++
[pid 12476] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12476, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12478
./strace-static-x86_64: Process 12478 attached
[pid 12478] set_robust_list(0x5555874576a0, 24) = 0
[pid 12478] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12478] setpgid(0, 0)               = 0
[pid 12478] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12478] write(3, "1000", 4)         = 4
[pid 12478] close(3)                    = 0
[pid 12478] write(1, "executing program\n", 18executing program
) = 18
[pid 12478] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12478] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12478] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12478] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12478] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12478] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12478] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12479]}, 88) = 12479
./strace-static-x86_64: Process 12479 attached
[pid 12478] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12478] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12478] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12479] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12479] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12479] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12479] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12479] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12478] <... futex resumed>)        = 0
[pid 12478] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12479] <... futex resumed>)        = 0
[pid 12479] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12478] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12479] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12479] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12478] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12478] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12479] <... futex resumed>)        = 0
[pid 12479] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12479] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12479] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12478] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12478] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12479] <... futex resumed>)        = 0
[pid 12479] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12479] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12479] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12478] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12478] exit_group(0)               = ?
[pid 12479] <... futex resumed>)        = ?
[pid 12479] +++ exited with 0 +++
[pid 12478] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12478, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12480 attached
, child_tidptr=0x555587457690) = 12480
[pid 12480] set_robust_list(0x5555874576a0, 24) = 0
[pid 12480] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12480] setpgid(0, 0)               = 0
[pid 12480] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12480] write(3, "1000", 4)         = 4
[pid 12480] close(3)                    = 0
[pid 12480] write(1, "executing program\n", 18executing program
) = 18
[pid 12480] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12480] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12480] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12480] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12480] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12480] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12480] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12481 attached
 => {parent_tid=[12481]}, 88) = 12481
[pid 12481] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12481] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12481] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12480] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12480] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12481] <... futex resumed>)        = 0
[pid 12481] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12480] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12481] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12481] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12481] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12480] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12480] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12481] <... futex resumed>)        = 0
[pid 12481] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12481] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12481] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12480] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12480] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12481] <... futex resumed>)        = 0
[pid 12480] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12481] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12481] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12480] <... futex resumed>)        = 0
[pid 12481] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12480] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12481] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12480] <... futex resumed>)        = 0
[pid 12481] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12481] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12481] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12480] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12480] exit_group(0)               = ?
[pid 12481] <... futex resumed>)        = ?
[pid 12481] +++ exited with 0 +++
[pid 12480] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12480, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12482 attached
, child_tidptr=0x555587457690) = 12482
[pid 12482] set_robust_list(0x5555874576a0, 24) = 0
[pid 12482] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12482] setpgid(0, 0)               = 0
[pid 12482] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12482] write(3, "1000", 4)         = 4
[pid 12482] close(3)                    = 0
executing program
[pid 12482] write(1, "executing program\n", 18) = 18
[pid 12482] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12482] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12482] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12482] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12482] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12482] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12482] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12483]}, 88) = 12483
[pid 12482] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12482] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12482] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12483 attached
 <unfinished ...>
[pid 12483] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12483] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12483] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12483] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12482] <... futex resumed>)        = 0
[pid 12483] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12482] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12483] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12483] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12482] <... futex resumed>)        = 0
[pid 12483] <... futex resumed>)        = 0
[pid 12482] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12483] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12482] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12482] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12482] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12483] <... futex resumed>)        = 0
[pid 12483] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12483] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12482] <... futex resumed>)        = 0
[pid 12482] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12482] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12483] <... futex resumed>)        = 1
[pid 12483] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12483] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12482] <... futex resumed>)        = 0
[pid 12482] exit_group(0)               = ?
[pid 12483] <... futex resumed>)        = ?
[pid 12483] +++ exited with 0 +++
[pid 12482] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12482, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12484
./strace-static-x86_64: Process 12484 attached
[pid 12484] set_robust_list(0x5555874576a0, 24) = 0
[pid 12484] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12484] setpgid(0, 0)               = 0
[pid 12484] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12484] write(3, "1000", 4)         = 4
[pid 12484] close(3)                    = 0
[pid 12484] write(1, "executing program\n", 18executing program
) = 18
[pid 12484] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12484] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12484] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12484] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12484] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12484] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12484] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12485]}, 88) = 12485
[pid 12484] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12484] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12484] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12485 attached
 <unfinished ...>
[pid 12485] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12485] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12485] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12485] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12484] <... futex resumed>)        = 0
[pid 12484] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12484] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12485] <... futex resumed>)        = 1
[pid 12485] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12485] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12484] <... futex resumed>)        = 0
[pid 12484] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12484] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12485] <... futex resumed>)        = 1
[pid 12485] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12485] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12484] <... futex resumed>)        = 0
[pid 12484] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12484] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12485] <... futex resumed>)        = 1
[pid 12485] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12485] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12484] <... futex resumed>)        = 0
[pid 12484] exit_group(0)               = ?
[pid 12485] <... futex resumed>)        = ?
[pid 12485] +++ exited with 0 +++
[pid 12484] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12484, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12486
./strace-static-x86_64: Process 12486 attached
[pid 12486] set_robust_list(0x5555874576a0, 24) = 0
[pid 12486] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12486] setpgid(0, 0)               = 0
[pid 12486] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12486] write(3, "1000", 4)         = 4
[pid 12486] close(3)                    = 0
[pid 12486] write(1, "executing program\n", 18executing program
) = 18
[pid 12486] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12486] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12486] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12486] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12486] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12486] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12486] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12487]}, 88) = 12487
[pid 12486] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12486] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12486] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12487 attached
 <unfinished ...>
[pid 12487] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12487] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12487] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12487] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12487] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12486] <... futex resumed>)        = 0
[pid 12486] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12486] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12487] <... futex resumed>)        = 0
[pid 12487] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12487] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12486] <... futex resumed>)        = 0
[pid 12486] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12486] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12487] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12487] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12486] <... futex resumed>)        = 0
[pid 12486] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12486] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12487] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12487] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12486] <... futex resumed>)        = 0
[pid 12486] exit_group(0)               = ?
[pid 12487] +++ exited with 0 +++
[pid 12486] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12486, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12488
./strace-static-x86_64: Process 12488 attached
[pid 12488] set_robust_list(0x5555874576a0, 24) = 0
[pid 12488] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12488] setpgid(0, 0)               = 0
[pid 12488] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12488] write(3, "1000", 4)         = 4
[pid 12488] close(3)                    = 0
[pid 12488] write(1, "executing program\n", 18executing program
) = 18
[pid 12488] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12488] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12488] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12488] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12488] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12488] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12488] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12489 attached
 => {parent_tid=[12489]}, 88) = 12489
[pid 12489] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12488] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12489] <... set_robust_list resumed>) = 0
[pid 12488] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12489] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12488] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12489] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12489] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12488] <... futex resumed>)        = 0
[pid 12488] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12489] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12489] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12488] <... futex resumed>)        = 0
[pid 12488] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12488] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12489] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12489] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12488] <... futex resumed>)        = 0
[pid 12489] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12488] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12489] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12488] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12489] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12488] <... futex resumed>)        = 0
[pid 12488] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12488] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12489] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12489] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12488] <... futex resumed>)        = 0
[pid 12488] exit_group(0)               = ?
[pid 12489] +++ exited with 0 +++
[pid 12488] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12488, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12490
./strace-static-x86_64: Process 12490 attached
[pid 12490] set_robust_list(0x5555874576a0, 24) = 0
[pid 12490] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12490] setpgid(0, 0)               = 0
[pid 12490] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12490] write(3, "1000", 4)         = 4
[pid 12490] close(3)                    = 0
executing program
[pid 12490] write(1, "executing program\n", 18) = 18
[pid 12490] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12490] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12490] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12490] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12490] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12490] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12490] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12491]}, 88) = 12491
./strace-static-x86_64: Process 12491 attached
[pid 12490] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12490] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12490] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12491] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12491] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12491] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12491] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12490] <... futex resumed>)        = 0
[pid 12490] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12490] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12491] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12491] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12490] <... futex resumed>)        = 0
[pid 12490] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12490] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12491] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12491] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12490] <... futex resumed>)        = 0
[pid 12490] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12490] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12491] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12491] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12490] <... futex resumed>)        = 0
[pid 12490] exit_group(0)               = ?
[pid 12491] +++ exited with 0 +++
[pid 12490] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12490, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12492 attached
 <unfinished ...>
[pid 12492] set_robust_list(0x5555874576a0, 24) = 0
[pid 12492] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12492] setpgid(0, 0)               = 0
[pid 12492] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 12492
[pid 12492] <... openat resumed>)       = 3
[pid 12492] write(3, "1000", 4)         = 4
[pid 12492] close(3)                    = 0
executing program
[pid 12492] write(1, "executing program\n", 18) = 18
[pid 12492] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12492] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12492] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12492] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12492] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12492] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12492] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12493 attached
 => {parent_tid=[12493]}, 88) = 12493
[pid 12492] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12492] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12492] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12493] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12493] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12493] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12493] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12492] <... futex resumed>)        = 0
[pid 12493] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12492] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12493] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12492] <... futex resumed>)        = 0
[pid 12493] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12492] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12493] <... futex resumed>)        = 0
[pid 12492] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12493] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12492] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12493] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12492] <... futex resumed>)        = 0
[pid 12493] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12492] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12493] <... futex resumed>)        = 0
[pid 12492] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12493] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12492] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12493] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12492] <... futex resumed>)        = 0
[pid 12493] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12492] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12493] <... futex resumed>)        = 0
[pid 12492] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12493] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12492] exit_group(0 <unfinished ...>
[pid 12493] <... futex resumed>)        = ?
[pid 12492] <... exit_group resumed>)   = ?
[pid 12493] +++ exited with 0 +++
[pid 12492] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12492, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12494
./strace-static-x86_64: Process 12494 attached
[pid 12494] set_robust_list(0x5555874576a0, 24) = 0
[pid 12494] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12494] setpgid(0, 0)               = 0
[pid 12494] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12494] write(3, "1000", 4)         = 4
[pid 12494] close(3executing program
)                    = 0
[pid 12494] write(1, "executing program\n", 18) = 18
[pid 12494] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12494] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12494] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12494] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12494] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12494] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12494] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12495]}, 88) = 12495
[pid 12494] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12494] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12494] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12495 attached
 <unfinished ...>
[pid 12495] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12495] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12495] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12495] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12494] <... futex resumed>)        = 0
[pid 12494] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12494] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12495] <... futex resumed>)        = 1
[pid 12495] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12495] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12494] <... futex resumed>)        = 0
[pid 12494] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12494] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12495] <... futex resumed>)        = 1
[pid 12495] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12495] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12494] <... futex resumed>)        = 0
[pid 12494] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12494] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12495] <... futex resumed>)        = 1
[pid 12495] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12495] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12494] <... futex resumed>)        = 0
[pid 12494] exit_group(0)               = ?
[pid 12495] <... futex resumed>)        = ?
[pid 12495] +++ exited with 0 +++
[pid 12494] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12494, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12496
./strace-static-x86_64: Process 12496 attached
[pid 12496] set_robust_list(0x5555874576a0, 24) = 0
[pid 12496] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12496] setpgid(0, 0)               = 0
[pid 12496] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12496] write(3, "1000", 4)         = 4
[pid 12496] close(3)                    = 0
[pid 12496] write(1, "executing program\n", 18executing program
) = 18
[pid 12496] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12496] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12496] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12496] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12496] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12496] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12496] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12497]}, 88) = 12497
./strace-static-x86_64: Process 12497 attached
[pid 12497] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12497] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12497] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12496] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12496] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12497] <... futex resumed>)        = 0
[pid 12497] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12496] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12497] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12497] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12497] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12496] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12496] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12497] <... futex resumed>)        = 0
[pid 12497] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12497] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12497] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12496] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12496] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12497] <... futex resumed>)        = 0
[pid 12497] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12496] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12497] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12496] <... futex resumed>)        = 0
[pid 12496] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12496] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12497] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12497] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12496] <... futex resumed>)        = 0
[pid 12496] exit_group(0)               = ?
[pid 12497] +++ exited with 0 +++
[pid 12496] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12496, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12498
./strace-static-x86_64: Process 12498 attached
[pid 12498] set_robust_list(0x5555874576a0, 24) = 0
[pid 12498] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12498] setpgid(0, 0)               = 0
[pid 12498] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12498] write(3, "1000", 4)         = 4
[pid 12498] close(3)                    = 0
[pid 12498] write(1, "executing program\n", 18executing program
) = 18
[pid 12498] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12498] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12498] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12498] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12498] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12498] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12498] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12499 attached
 => {parent_tid=[12499]}, 88) = 12499
[pid 12498] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12498] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12498] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12499] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12499] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12499] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12499] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12499] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12498] <... futex resumed>)        = 0
[pid 12498] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12499] <... futex resumed>)        = 0
[pid 12499] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12499] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12499] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12498] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12498] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12499] <... futex resumed>)        = 0
[pid 12499] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12499] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12499] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12498] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12498] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12499] <... futex resumed>)        = 0
[pid 12499] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12499] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12499] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12498] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12498] exit_group(0)               = ?
[pid 12499] <... futex resumed>)        = ?
[pid 12499] +++ exited with 0 +++
[pid 12498] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12498, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12500
./strace-static-x86_64: Process 12500 attached
[pid 12500] set_robust_list(0x5555874576a0, 24) = 0
[pid 12500] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12500] setpgid(0, 0)               = 0
[pid 12500] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12500] write(3, "1000", 4)         = 4
[pid 12500] close(3)                    = 0
[pid 12500] write(1, "executing program\n", 18executing program
) = 18
[pid 12500] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12500] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12500] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12500] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12500] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12500] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12500] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12501 attached
 => {parent_tid=[12501]}, 88) = 12501
[pid 12500] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12500] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12500] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12501] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12501] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12501] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12501] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12500] <... futex resumed>)        = 0
[pid 12501] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12500] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12501] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12500] <... futex resumed>)        = 0
[pid 12501] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12500] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12501] <... futex resumed>)        = 0
[pid 12500] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12501] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12500] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12501] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12500] <... futex resumed>)        = 0
[pid 12501] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12500] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12501] <... futex resumed>)        = 0
[pid 12500] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12501] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12500] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12501] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12500] <... futex resumed>)        = 0
[pid 12501] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12500] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12501] <... futex resumed>)        = 0
[pid 12500] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12501] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12500] exit_group(0 <unfinished ...>
[pid 12501] <... futex resumed>)        = ?
[pid 12500] <... exit_group resumed>)   = ?
[pid 12501] +++ exited with 0 +++
[pid 12500] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12500, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12502
./strace-static-x86_64: Process 12502 attached
[pid 12502] set_robust_list(0x5555874576a0, 24) = 0
[pid 12502] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12502] setpgid(0, 0)               = 0
[pid 12502] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12502] write(3, "1000", 4)         = 4
[pid 12502] close(3executing program
)                    = 0
[pid 12502] write(1, "executing program\n", 18) = 18
[pid 12502] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12502] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12502] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12502] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12502] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12502] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12502] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12503 attached
 => {parent_tid=[12503]}, 88) = 12503
[pid 12503] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12502] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12503] <... set_robust_list resumed>) = 0
[pid 12502] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12503] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12502] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12503] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12502] <... futex resumed>)        = 0
[pid 12503] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12502] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12503] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12503] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12502] <... futex resumed>)        = 0
[pid 12503] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12502] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12503] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12502] <... futex resumed>)        = 0
[pid 12503] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12502] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12503] <... futex resumed>)        = 0
[pid 12502] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12503] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12502] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12503] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12502] <... futex resumed>)        = 0
[pid 12503] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12502] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12503] <... futex resumed>)        = 0
[pid 12502] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12503] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12502] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12503] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12502] <... futex resumed>)        = 0
[pid 12503] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12502] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12503] <... futex resumed>)        = 0
[pid 12502] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12503] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12502] exit_group(0 <unfinished ...>
[pid 12503] <... futex resumed>)        = ?
[pid 12502] <... exit_group resumed>)   = ?
[pid 12503] +++ exited with 0 +++
[pid 12502] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12502, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12504 attached
 <unfinished ...>
[pid 12504] set_robust_list(0x5555874576a0, 24) = 0
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 12504
[pid 12504] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12504] setpgid(0, 0)               = 0
[pid 12504] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12504] write(3, "1000", 4)         = 4
[pid 12504] close(3executing program
)                    = 0
[pid 12504] write(1, "executing program\n", 18) = 18
[pid 12504] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12504] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12504] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12504] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12504] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12504] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12504] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12505 attached
 <unfinished ...>
[pid 12505] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12504] <... clone3 resumed> => {parent_tid=[12505]}, 88) = 12505
[pid 12504] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12505] <... set_robust_list resumed>) = 0
[pid 12504] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12505] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12504] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12505] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12504] <... futex resumed>)        = 0
[pid 12505] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12504] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12505] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12505] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12504] <... futex resumed>)        = 0
[pid 12504] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12504] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12505] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12505] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12504] <... futex resumed>)        = 0
[pid 12504] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12504] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12505] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12505] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12504] <... futex resumed>)        = 0
[pid 12504] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12504] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12505] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12505] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12504] <... futex resumed>)        = 0
[pid 12504] exit_group(0)               = ?
[pid 12505] +++ exited with 0 +++
[pid 12504] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12504, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12506
./strace-static-x86_64: Process 12506 attached
[pid 12506] set_robust_list(0x5555874576a0, 24) = 0
[pid 12506] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12506] setpgid(0, 0)               = 0
[pid 12506] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12506] write(3, "1000", 4)         = 4
[pid 12506] close(3)                    = 0
executing program
[pid 12506] write(1, "executing program\n", 18) = 18
[pid 12506] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12506] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12506] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12506] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12506] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12506] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12506] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12507 attached
 => {parent_tid=[12507]}, 88) = 12507
[pid 12507] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12507] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12507] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12506] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12506] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12507] <... futex resumed>)        = 0
[pid 12507] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12506] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12507] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12507] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12507] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12506] <... futex resumed>)        = 0
[pid 12506] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12507] <... futex resumed>)        = 0
[pid 12507] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12506] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12507] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12506] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12507] <... futex resumed>)        = 0
[pid 12506] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12507] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12506] <... futex resumed>)        = 0
[pid 12506] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12507] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12507] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12506] <... futex resumed>)        = 0
[pid 12506] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12506] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12507] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12507] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12506] <... futex resumed>)        = 0
[pid 12506] exit_group(0)               = ?
[pid 12507] +++ exited with 0 +++
[pid 12506] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12506, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12508
./strace-static-x86_64: Process 12508 attached
[pid 12508] set_robust_list(0x5555874576a0, 24) = 0
[pid 12508] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12508] setpgid(0, 0)               = 0
[pid 12508] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12508] write(3, "1000", 4)         = 4
[pid 12508] close(3)                    = 0
executing program
[pid 12508] write(1, "executing program\n", 18) = 18
[pid 12508] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12508] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12508] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12508] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12508] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12508] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12508] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12509 attached
 => {parent_tid=[12509]}, 88) = 12509
[pid 12508] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12508] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12508] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12509] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12509] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12509] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12509] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12508] <... futex resumed>)        = 0
[pid 12508] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12508] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12509] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12509] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12508] <... futex resumed>)        = 0
[pid 12508] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12508] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12509] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12509] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12508] <... futex resumed>)        = 0
[pid 12508] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12508] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12509] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12509] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12508] <... futex resumed>)        = 0
[pid 12509] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12508] exit_group(0 <unfinished ...>
[pid 12509] <... futex resumed>)        = ?
[pid 12508] <... exit_group resumed>)   = ?
[pid 12509] +++ exited with 0 +++
[pid 12508] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12508, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12510 attached
, child_tidptr=0x555587457690) = 12510
[pid 12510] set_robust_list(0x5555874576a0, 24) = 0
[pid 12510] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12510] setpgid(0, 0)               = 0
[pid 12510] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12510] write(3, "1000", 4)         = 4
[pid 12510] close(3)                    = 0
[pid 12510] write(1, "executing program\n", 18executing program
) = 18
[pid 12510] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12510] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12510] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12510] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12510] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12510] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12510] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12511 attached
 => {parent_tid=[12511]}, 88) = 12511
[pid 12510] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12510] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12510] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12511] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12511] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12511] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12511] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12510] <... futex resumed>)        = 0
[pid 12510] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12510] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12511] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12511] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12510] <... futex resumed>)        = 0
[pid 12510] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12510] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12511] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12511] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12510] <... futex resumed>)        = 0
[pid 12510] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12510] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12511] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12511] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12510] <... futex resumed>)        = 0
[pid 12511] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12510] exit_group(0)               = ?
[pid 12511] <... futex resumed>)        = ?
[pid 12511] +++ exited with 0 +++
[pid 12510] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12510, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12512
./strace-static-x86_64: Process 12512 attached
[pid 12512] set_robust_list(0x5555874576a0, 24) = 0
[pid 12512] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12512] setpgid(0, 0)               = 0
[pid 12512] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12512] write(3, "1000", 4)         = 4
[pid 12512] close(3)                    = 0
[pid 12512] write(1, "executing program\n", 18executing program
) = 18
[pid 12512] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12512] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12512] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12512] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12512] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12512] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12512] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12513]}, 88) = 12513
./strace-static-x86_64: Process 12513 attached
[pid 12513] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12513] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12513] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12512] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12512] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12513] <... futex resumed>)        = 0
[pid 12512] <... futex resumed>)        = 1
[pid 12513] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12512] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12513] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12513] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12513] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12512] <... futex resumed>)        = 0
[pid 12512] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12513] <... futex resumed>)        = 0
[pid 12512] <... futex resumed>)        = 1
[pid 12513] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12512] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12513] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12513] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12512] <... futex resumed>)        = 0
[pid 12513] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12512] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12513] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12512] <... futex resumed>)        = 0
[pid 12513] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12512] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12513] <... futex resumed>)        = 0
[pid 12512] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12513] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12512] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12513] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12512] <... futex resumed>)        = 0
[pid 12513] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12513] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12512] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12512] exit_group(0 <unfinished ...>
[pid 12513] <... futex resumed>)        = ?
[pid 12512] <... exit_group resumed>)   = ?
[pid 12513] +++ exited with 0 +++
[pid 12512] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12512, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12514
./strace-static-x86_64: Process 12514 attached
[pid 12514] set_robust_list(0x5555874576a0, 24) = 0
[pid 12514] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12514] setpgid(0, 0)               = 0
[pid 12514] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12514] write(3, "1000", 4)         = 4
[pid 12514] close(3)                    = 0
executing program
[pid 12514] write(1, "executing program\n", 18) = 18
[pid 12514] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12514] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12514] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12514] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12514] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12514] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12514] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12515 attached
 => {parent_tid=[12515]}, 88) = 12515
[pid 12514] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12514] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12514] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12515] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12515] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12515] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12515] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12514] <... futex resumed>)        = 0
[pid 12515] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12514] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12515] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12514] <... futex resumed>)        = 0
[pid 12515] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12514] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12515] <... futex resumed>)        = 0
[pid 12514] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12515] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12514] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12515] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12514] <... futex resumed>)        = 0
[pid 12515] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12514] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12515] <... futex resumed>)        = 0
[pid 12514] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12515] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12514] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12515] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12514] <... futex resumed>)        = 0
[pid 12515] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12514] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12515] <... futex resumed>)        = 0
[pid 12514] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12515] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12514] exit_group(0 <unfinished ...>
[pid 12515] <... futex resumed>)        = ?
[pid 12514] <... exit_group resumed>)   = ?
[pid 12515] +++ exited with 0 +++
[pid 12514] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12514, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12516 attached
, child_tidptr=0x555587457690) = 12516
[pid 12516] set_robust_list(0x5555874576a0, 24) = 0
[pid 12516] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12516] setpgid(0, 0)               = 0
[pid 12516] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12516] write(3, "1000", 4)         = 4
[pid 12516] close(3)                    = 0
[pid 12516] write(1, "executing program\n", 18executing program
) = 18
[pid 12516] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12516] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12516] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12516] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12516] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12516] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12516] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12517 attached
 => {parent_tid=[12517]}, 88) = 12517
[pid 12517] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12516] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12516] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12516] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12517] <... set_robust_list resumed>) = 0
[pid 12517] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12517] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12517] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12516] <... futex resumed>)        = 0
[pid 12517] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12516] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12517] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12516] <... futex resumed>)        = 0
[pid 12517] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12516] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12516] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12516] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12517] <... futex resumed>)        = 1
[pid 12516] <... futex resumed>)        = 0
[pid 12517] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12516] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=49000000} <unfinished ...>
[pid 12517] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12517] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12516] <... futex resumed>)        = 0
[pid 12516] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12517] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12516] <... futex resumed>)        = 0
[pid 12517] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12516] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12517] <... futex resumed>)        = 0
[pid 12516] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12517] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12516] exit_group(0 <unfinished ...>
[pid 12517] <... futex resumed>)        = ?
[pid 12516] <... exit_group resumed>)   = ?
[pid 12517] +++ exited with 0 +++
[pid 12516] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12516, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12518
./strace-static-x86_64: Process 12518 attached
[pid 12518] set_robust_list(0x5555874576a0, 24) = 0
[pid 12518] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12518] setpgid(0, 0)               = 0
[pid 12518] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12518] write(3, "1000", 4)         = 4
[pid 12518] close(3executing program
)                    = 0
[pid 12518] write(1, "executing program\n", 18) = 18
[pid 12518] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12518] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12518] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12518] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12518] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12518] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12518] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12519 attached
 => {parent_tid=[12519]}, 88) = 12519
[pid 12519] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12518] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12519] <... set_robust_list resumed>) = 0
[pid 12518] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12519] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12518] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12519] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12518] <... futex resumed>)        = 0
[pid 12519] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12518] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12519] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12519] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12518] <... futex resumed>)        = 0
[pid 12519] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12518] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12519] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12518] <... futex resumed>)        = 0
[pid 12519] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12518] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12519] <... futex resumed>)        = 0
[pid 12518] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12519] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12518] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12519] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12518] <... futex resumed>)        = 0
[pid 12519] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12518] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12519] <... futex resumed>)        = 0
[pid 12518] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12519] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12518] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12519] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12518] <... futex resumed>)        = 0
[pid 12519] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12518] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12519] <... futex resumed>)        = 0
[pid 12518] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12519] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12518] exit_group(0 <unfinished ...>
[pid 12519] <... futex resumed>)        = ?
[pid 12518] <... exit_group resumed>)   = ?
[pid 12519] +++ exited with 0 +++
[pid 12518] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12518, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12520 attached
, child_tidptr=0x555587457690) = 12520
[pid 12520] set_robust_list(0x5555874576a0, 24) = 0
[pid 12520] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12520] setpgid(0, 0)               = 0
[pid 12520] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12520] write(3, "1000", 4)         = 4
[pid 12520] close(3)                    = 0
executing program
[pid 12520] write(1, "executing program\n", 18) = 18
[pid 12520] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12520] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12520] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12520] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12520] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12520] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12520] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12521]}, 88) = 12521
[pid 12520] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12520] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12520] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12521 attached
 <unfinished ...>
[pid 12521] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12521] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12521] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12521] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12520] <... futex resumed>)        = 0
[pid 12521] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12520] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12521] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12520] <... futex resumed>)        = 0
[pid 12521] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12520] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12521] <... futex resumed>)        = 0
[pid 12520] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12521] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12520] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12521] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12520] <... futex resumed>)        = 0
[pid 12521] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12520] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12521] <... futex resumed>)        = 0
[pid 12520] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12521] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12520] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12521] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12520] <... futex resumed>)        = 0
[pid 12521] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12520] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12520] exit_group(0 <unfinished ...>
[pid 12521] <... futex resumed>)        = 0
[pid 12520] <... exit_group resumed>)   = ?
[pid 12521] +++ exited with 0 +++
[pid 12520] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12520, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12522
./strace-static-x86_64: Process 12522 attached
[pid 12522] set_robust_list(0x5555874576a0, 24) = 0
[pid 12522] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12522] setpgid(0, 0)               = 0
[pid 12522] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12522] write(3, "1000", 4)         = 4
[pid 12522] close(3)                    = 0
executing program
[pid 12522] write(1, "executing program\n", 18) = 18
[pid 12522] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12522] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12522] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12522] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12522] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12522] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12522] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12523]}, 88) = 12523
[pid 12522] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12522] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12522] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12523 attached
 <unfinished ...>
[pid 12523] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12523] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12523] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12523] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12522] <... futex resumed>)        = 0
[pid 12522] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12522] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12523] <... futex resumed>)        = 1
[pid 12523] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12523] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12522] <... futex resumed>)        = 0
[pid 12522] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12522] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12523] <... futex resumed>)        = 1
[pid 12523] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12523] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12522] <... futex resumed>)        = 0
[pid 12522] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12522] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12523] <... futex resumed>)        = 1
[pid 12523] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12523] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12522] <... futex resumed>)        = 0
[pid 12522] exit_group(0)               = ?
[pid 12523] <... futex resumed>)        = ?
[pid 12523] +++ exited with 0 +++
[pid 12522] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12522, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12524
./strace-static-x86_64: Process 12524 attached
[pid 12524] set_robust_list(0x5555874576a0, 24) = 0
[pid 12524] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12524] setpgid(0, 0)               = 0
[pid 12524] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12524] write(3, "1000", 4)         = 4
[pid 12524] close(3)                    = 0
[pid 12524] write(1, "executing program\n", 18executing program
) = 18
[pid 12524] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12524] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12524] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12524] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12524] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12524] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12524] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12525]}, 88) = 12525
[pid 12524] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12524] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12524] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12525 attached
 <unfinished ...>
[pid 12525] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12525] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12525] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12525] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12524] <... futex resumed>)        = 0
[pid 12524] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12524] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12525] <... futex resumed>)        = 1
[pid 12525] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12525] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12524] <... futex resumed>)        = 0
[pid 12524] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12524] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12525] <... futex resumed>)        = 1
[pid 12525] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12525] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12524] <... futex resumed>)        = 0
[pid 12524] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12524] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12525] <... futex resumed>)        = 1
[pid 12525] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12525] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12524] <... futex resumed>)        = 0
[pid 12524] exit_group(0)               = ?
[pid 12525] <... futex resumed>)        = ?
[pid 12525] +++ exited with 0 +++
[pid 12524] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12524, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12526
./strace-static-x86_64: Process 12526 attached
[pid 12526] set_robust_list(0x5555874576a0, 24) = 0
[pid 12526] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12526] setpgid(0, 0)               = 0
[pid 12526] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12526] write(3, "1000", 4)         = 4
[pid 12526] close(3)                    = 0
executing program
[pid 12526] write(1, "executing program\n", 18) = 18
[pid 12526] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12526] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12526] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12526] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12526] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12526] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12526] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12527]}, 88) = 12527
./strace-static-x86_64: Process 12527 attached
[pid 12527] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12527] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12527] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12526] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12526] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12527] <... futex resumed>)        = 0
[pid 12527] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12526] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12527] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12527] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12526] <... futex resumed>)        = 0
[pid 12526] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12527] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12526] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12527] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12527] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12527] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12526] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12526] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12527] <... futex resumed>)        = 0
[pid 12527] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12527] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12527] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12526] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12526] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12527] <... futex resumed>)        = 0
[pid 12527] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12527] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12526] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12527] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12526] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12526] exit_group(0)               = ?
[pid 12527] <... futex resumed>)        = ?
[pid 12527] +++ exited with 0 +++
[pid 12526] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12526, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12528 attached
 <unfinished ...>
[pid 12528] set_robust_list(0x5555874576a0, 24) = 0
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 12528
[pid 12528] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12528] setpgid(0, 0)               = 0
[pid 12528] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12528] write(3, "1000", 4)         = 4
[pid 12528] close(3)                    = 0
[pid 12528] write(1, "executing program\n", 18) = 18
executing program
[pid 12528] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12528] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12528] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12528] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12528] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12528] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12528] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12529]}, 88) = 12529
[pid 12528] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12528] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12528] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12529 attached
 <unfinished ...>
[pid 12529] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12529] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12529] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12529] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12528] <... futex resumed>)        = 0
[pid 12528] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12528] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12529] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12529] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12528] <... futex resumed>)        = 0
[pid 12528] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12528] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12529] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12529] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12528] <... futex resumed>)        = 0
[pid 12528] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12528] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12529] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12529] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12528] <... futex resumed>)        = 0
[pid 12528] exit_group(0)               = ?
[pid 12529] +++ exited with 0 +++
[pid 12528] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12528, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12530
./strace-static-x86_64: Process 12530 attached
[pid 12530] set_robust_list(0x5555874576a0, 24) = 0
[pid 12530] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12530] setpgid(0, 0)               = 0
[pid 12530] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12530] write(3, "1000", 4)         = 4
[pid 12530] close(3)                    = 0
executing program
[pid 12530] write(1, "executing program\n", 18) = 18
[pid 12530] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12530] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12530] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12530] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12530] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12530] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12530] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12531 attached
 => {parent_tid=[12531]}, 88) = 12531
[pid 12531] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12531] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12531] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12530] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12530] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12531] <... futex resumed>)        = 0
[pid 12531] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12531] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12531] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12530] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12530] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12531] <... futex resumed>)        = 0
[pid 12531] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12531] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12531] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12530] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12530] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12531] <... futex resumed>)        = 0
[pid 12531] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12531] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12531] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12530] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12530] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12531] <... futex resumed>)        = 0
[pid 12531] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12530] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12531] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12531] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12530] <... futex resumed>)        = 0
[pid 12531] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12530] exit_group(0 <unfinished ...>
[pid 12531] <... futex resumed>)        = ?
[pid 12530] <... exit_group resumed>)   = ?
[pid 12531] +++ exited with 0 +++
[pid 12530] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12530, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12532
./strace-static-x86_64: Process 12532 attached
[pid 12532] set_robust_list(0x5555874576a0, 24) = 0
[pid 12532] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12532] setpgid(0, 0)               = 0
[pid 12532] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12532] write(3, "1000", 4)         = 4
[pid 12532] close(3)                    = 0
executing program
[pid 12532] write(1, "executing program\n", 18) = 18
[pid 12532] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12532] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12532] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12532] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12532] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12532] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12532] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12533 attached
 => {parent_tid=[12533]}, 88) = 12533
[pid 12532] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12532] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12532] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12533] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12533] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12533] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12533] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12532] <... futex resumed>)        = 0
[pid 12532] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12532] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12533] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12533] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12532] <... futex resumed>)        = 0
[pid 12532] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12532] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12533] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12533] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12532] <... futex resumed>)        = 0
[pid 12532] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12532] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12533] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12533] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12532] <... futex resumed>)        = 0
[pid 12532] exit_group(0)               = ?
[pid 12533] +++ exited with 0 +++
[pid 12532] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12532, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12534
./strace-static-x86_64: Process 12534 attached
[pid 12534] set_robust_list(0x5555874576a0, 24) = 0
[pid 12534] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12534] setpgid(0, 0)               = 0
[pid 12534] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12534] write(3, "1000", 4)         = 4
[pid 12534] close(3)                    = 0
[pid 12534] write(1, "executing program\n", 18executing program
) = 18
[pid 12534] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12534] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12534] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12534] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12534] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12534] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12534] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12535 attached
 <unfinished ...>
[pid 12535] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12534] <... clone3 resumed> => {parent_tid=[12535]}, 88) = 12535
[pid 12534] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12534] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12534] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12535] <... set_robust_list resumed>) = 0
[pid 12535] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12535] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12535] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12535] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12534] <... futex resumed>)        = 0
[pid 12534] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12535] <... futex resumed>)        = 0
[pid 12535] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12535] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12535] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12534] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12534] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12535] <... futex resumed>)        = 0
[pid 12535] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12535] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12535] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12534] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12534] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12535] <... futex resumed>)        = 0
[pid 12535] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12535] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12535] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12534] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12534] exit_group(0 <unfinished ...>
[pid 12535] <... futex resumed>)        = ?
[pid 12534] <... exit_group resumed>)   = ?
[pid 12535] +++ exited with 0 +++
[pid 12534] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12534, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12536 attached
, child_tidptr=0x555587457690) = 12536
[pid 12536] set_robust_list(0x5555874576a0, 24) = 0
[pid 12536] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12536] setpgid(0, 0)               = 0
[pid 12536] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12536] write(3, "1000", 4)         = 4
[pid 12536] close(3executing program
)                    = 0
[pid 12536] write(1, "executing program\n", 18) = 18
[pid 12536] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12536] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12536] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12536] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12536] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12536] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12536] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12537 attached
 => {parent_tid=[12537]}, 88) = 12537
[pid 12536] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12537] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12536] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12537] <... set_robust_list resumed>) = 0
[pid 12536] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12537] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12536] <... futex resumed>)        = 0
[pid 12537] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12536] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12537] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12537] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12536] <... futex resumed>)        = 0
[pid 12537] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12536] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12537] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12536] <... futex resumed>)        = 0
[pid 12537] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12536] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12537] <... futex resumed>)        = 0
[pid 12536] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12537] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12536] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12537] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12536] <... futex resumed>)        = 0
[pid 12537] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12536] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12537] <... futex resumed>)        = 0
[pid 12536] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12537] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12536] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12537] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12536] <... futex resumed>)        = 0
[pid 12537] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12536] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12537] <... futex resumed>)        = 0
[pid 12536] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12536] exit_group(0 <unfinished ...>
[pid 12537] ????( <unfinished ...>
[pid 12536] <... exit_group resumed>)   = ?
[pid 12537] <... ???? resumed>)         = ?
[pid 12537] +++ exited with 0 +++
[pid 12536] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12536, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12538
./strace-static-x86_64: Process 12538 attached
[pid 12538] set_robust_list(0x5555874576a0, 24) = 0
[pid 12538] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12538] setpgid(0, 0)               = 0
[pid 12538] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12538] write(3, "1000", 4)         = 4
[pid 12538] close(3)                    = 0
[pid 12538] write(1, "executing program\n", 18executing program
) = 18
[pid 12538] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12538] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12538] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12538] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12538] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12538] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12538] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12539]}, 88) = 12539
./strace-static-x86_64: Process 12539 attached
[pid 12539] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12539] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12539] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12538] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12538] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12539] <... futex resumed>)        = 0
[pid 12539] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12539] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12539] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12538] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12538] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12539] <... futex resumed>)        = 0
[pid 12539] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12539] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12539] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12538] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12538] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12539] <... futex resumed>)        = 0
[pid 12539] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12539] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12539] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12538] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12538] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12539] <... futex resumed>)        = 0
[pid 12539] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12539] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12539] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12538] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12538] exit_group(0)               = ?
[pid 12539] <... futex resumed>)        = ?
[pid 12539] +++ exited with 0 +++
[pid 12538] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12538, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12540 attached
, child_tidptr=0x555587457690) = 12540
[pid 12540] set_robust_list(0x5555874576a0, 24) = 0
[pid 12540] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12540] setpgid(0, 0)               = 0
[pid 12540] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12540] write(3, "1000", 4)         = 4
[pid 12540] close(3executing program
)                    = 0
[pid 12540] write(1, "executing program\n", 18) = 18
[pid 12540] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12540] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12540] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12540] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12540] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12540] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12540] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12541]}, 88) = 12541
./strace-static-x86_64: Process 12541 attached
[pid 12541] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12541] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12540] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12541] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12541] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12540] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12540] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12541] <... futex resumed>)        = 0
[pid 12541] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12540] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12541] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12541] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12540] <... futex resumed>)        = 0
[pid 12540] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12540] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12541] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12541] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12540] <... futex resumed>)        = 0
[pid 12540] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12540] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12541] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12541] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12540] <... futex resumed>)        = 0
[pid 12540] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12540] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12541] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12541] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12540] <... futex resumed>)        = 0
[pid 12540] exit_group(0)               = ?
[pid 12541] +++ exited with 0 +++
[pid 12540] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12540, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12542 attached
, child_tidptr=0x555587457690) = 12542
[pid 12542] set_robust_list(0x5555874576a0, 24) = 0
[pid 12542] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12542] setpgid(0, 0)               = 0
[pid 12542] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12542] write(3, "1000", 4)         = 4
[pid 12542] close(3)                    = 0
executing program
[pid 12542] write(1, "executing program\n", 18) = 18
[pid 12542] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12542] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12542] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12542] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12542] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12542] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12542] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12543]}, 88) = 12543
[pid 12542] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12542] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12542] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12543 attached
 <unfinished ...>
[pid 12543] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12543] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12543] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12543] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12542] <... futex resumed>)        = 0
[pid 12542] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12542] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12543] <... futex resumed>)        = 1
[pid 12543] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12543] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12542] <... futex resumed>)        = 0
[pid 12542] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12542] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12543] <... futex resumed>)        = 1
[pid 12543] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12543] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12542] <... futex resumed>)        = 0
[pid 12542] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12542] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12543] <... futex resumed>)        = 1
[pid 12543] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12543] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12542] <... futex resumed>)        = 0
[pid 12542] exit_group(0)               = ?
[pid 12543] <... futex resumed>)        = ?
[pid 12543] +++ exited with 0 +++
[pid 12542] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12542, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12544
./strace-static-x86_64: Process 12544 attached
[pid 12544] set_robust_list(0x5555874576a0, 24) = 0
[pid 12544] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12544] setpgid(0, 0)               = 0
[pid 12544] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12544] write(3, "1000", 4)         = 4
[pid 12544] close(3)                    = 0
[pid 12544] write(1, "executing program\n", 18executing program
) = 18
[pid 12544] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12544] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12544] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12544] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12544] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12544] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12544] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12545 attached
 => {parent_tid=[12545]}, 88) = 12545
[pid 12544] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12544] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12544] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12545] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12545] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12545] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12545] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12545] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12544] <... futex resumed>)        = 0
[pid 12544] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12545] <... futex resumed>)        = 0
[pid 12545] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12545] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12545] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12544] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12544] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12545] <... futex resumed>)        = 0
[pid 12545] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12545] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12545] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12544] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12544] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12545] <... futex resumed>)        = 0
[pid 12545] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12545] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12545] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12544] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12544] exit_group(0)               = ?
[pid 12545] <... futex resumed>)        = ?
[pid 12545] +++ exited with 0 +++
[pid 12544] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12544, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12546
./strace-static-x86_64: Process 12546 attached
[pid 12546] set_robust_list(0x5555874576a0, 24) = 0
[pid 12546] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12546] setpgid(0, 0)               = 0
[pid 12546] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12546] write(3, "1000", 4)         = 4
[pid 12546] close(3)                    = 0
executing program
[pid 12546] write(1, "executing program\n", 18) = 18
[pid 12546] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12546] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12546] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12546] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12546] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12546] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12546] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12547]}, 88) = 12547
./strace-static-x86_64: Process 12547 attached
[pid 12546] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12546] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12546] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12547] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12547] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12547] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12547] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12546] <... futex resumed>)        = 0
[pid 12546] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12546] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12547] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12547] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12546] <... futex resumed>)        = 0
[pid 12546] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12546] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12547] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12547] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12546] <... futex resumed>)        = 0
[pid 12546] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12546] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12547] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12547] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12546] <... futex resumed>)        = 0
[pid 12546] exit_group(0)               = ?
[pid 12547] +++ exited with 0 +++
[pid 12546] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12546, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12548
./strace-static-x86_64: Process 12548 attached
[pid 12548] set_robust_list(0x5555874576a0, 24) = 0
[pid 12548] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12548] setpgid(0, 0)               = 0
[pid 12548] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12548] write(3, "1000", 4)         = 4
[pid 12548] close(3)                    = 0
executing program
[pid 12548] write(1, "executing program\n", 18) = 18
[pid 12548] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12548] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12548] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12548] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12548] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12548] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12548] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12549 attached
 => {parent_tid=[12549]}, 88) = 12549
[pid 12548] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12548] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12548] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12549] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12549] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12549] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12549] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12548] <... futex resumed>)        = 0
[pid 12548] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12548] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12549] <... futex resumed>)        = 1
[pid 12549] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12549] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12548] <... futex resumed>)        = 0
[pid 12548] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12548] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12549] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12549] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12548] <... futex resumed>)        = 0
[pid 12548] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12548] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12549] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12549] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12548] <... futex resumed>)        = 0
[pid 12548] exit_group(0)               = ?
[pid 12549] +++ exited with 0 +++
[pid 12548] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12548, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12550
./strace-static-x86_64: Process 12550 attached
[pid 12550] set_robust_list(0x5555874576a0, 24) = 0
[pid 12550] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12550] setpgid(0, 0)               = 0
[pid 12550] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12550] write(3, "1000", 4)         = 4
[pid 12550] close(3)                    = 0
[pid 12550] write(1, "executing program\n", 18executing program
) = 18
[pid 12550] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12550] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12550] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12550] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12550] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12550] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12550] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12551 attached
 <unfinished ...>
[pid 12551] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12551] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12551] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12550] <... clone3 resumed> => {parent_tid=[12551]}, 88) = 12551
[pid 12550] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12550] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12551] <... futex resumed>)        = 0
[pid 12551] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12551] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12551] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12550] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12550] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12551] <... futex resumed>)        = 0
[pid 12551] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12551] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12551] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12550] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12550] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12551] <... futex resumed>)        = 0
[pid 12551] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12551] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12551] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12550] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12550] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12551] <... futex resumed>)        = 0
[pid 12551] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12551] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12551] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12550] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12550] exit_group(0)               = ?
[pid 12551] <... futex resumed>)        = ?
[pid 12551] +++ exited with 0 +++
[pid 12550] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12550, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12552
./strace-static-x86_64: Process 12552 attached
[pid 12552] set_robust_list(0x5555874576a0, 24) = 0
[pid 12552] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12552] setpgid(0, 0)               = 0
[pid 12552] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12552] write(3, "1000", 4)         = 4
[pid 12552] close(3)                    = 0
[pid 12552] write(1, "executing program\n", 18executing program
) = 18
[pid 12552] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12552] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12552] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12552] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12552] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12552] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12552] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12553 attached
 => {parent_tid=[12553]}, 88) = 12553
[pid 12553] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12553] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12553] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12552] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12552] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12553] <... futex resumed>)        = 0
[pid 12553] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12553] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12553] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12552] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12552] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12553] <... futex resumed>)        = 0
[pid 12553] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12552] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12553] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12553] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12553] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12552] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12552] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12553] <... futex resumed>)        = 0
[pid 12553] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12553] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12553] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12552] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12552] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12553] <... futex resumed>)        = 0
[pid 12553] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12553] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12553] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12552] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12552] exit_group(0)               = ?
[pid 12553] <... futex resumed>)        = ?
[pid 12553] +++ exited with 0 +++
[pid 12552] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12552, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12554
./strace-static-x86_64: Process 12554 attached
[pid 12554] set_robust_list(0x5555874576a0, 24) = 0
[pid 12554] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12554] setpgid(0, 0)               = 0
[pid 12554] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12554] write(3, "1000", 4)         = 4
[pid 12554] close(3)                    = 0
[pid 12554] write(1, "executing program\n", 18executing program
) = 18
[pid 12554] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12554] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12554] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12554] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12554] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12554] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12554] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12555]}, 88) = 12555
./strace-static-x86_64: Process 12555 attached
[pid 12555] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12555] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12554] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12555] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12555] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12554] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12554] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12555] <... futex resumed>)        = 0
[pid 12555] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12554] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12555] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12555] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12555] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12554] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12554] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12555] <... futex resumed>)        = 0
[pid 12555] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12554] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12555] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12554] <... futex resumed>)        = 0
[pid 12554] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12554] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12555] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12555] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12554] <... futex resumed>)        = 0
[pid 12554] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12554] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12555] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12555] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12554] <... futex resumed>)        = 0
[pid 12554] exit_group(0)               = ?
[pid 12555] +++ exited with 0 +++
[pid 12554] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12554, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12556
./strace-static-x86_64: Process 12556 attached
[pid 12556] set_robust_list(0x5555874576a0, 24) = 0
[pid 12556] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12556] setpgid(0, 0)               = 0
[pid 12556] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12556] write(3, "1000", 4)         = 4
[pid 12556] close(3)                    = 0
executing program
[pid 12556] write(1, "executing program\n", 18) = 18
[pid 12556] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12556] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12556] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12556] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12556] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12556] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12556] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12557]}, 88) = 12557
[pid 12556] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12556] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12556] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12557 attached
 <unfinished ...>
[pid 12557] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12557] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12557] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12557] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12556] <... futex resumed>)        = 0
[pid 12556] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12556] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12557] <... futex resumed>)        = 1
[pid 12557] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12557] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12556] <... futex resumed>)        = 0
[pid 12557] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12556] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12556] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12557] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12557] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12556] <... futex resumed>)        = 0
[pid 12556] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12556] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12557] <... futex resumed>)        = 1
[pid 12557] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12557] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12556] <... futex resumed>)        = 0
[pid 12556] exit_group(0)               = ?
[pid 12557] <... futex resumed>)        = ?
[pid 12557] +++ exited with 0 +++
[pid 12556] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12556, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12558
./strace-static-x86_64: Process 12558 attached
[pid 12558] set_robust_list(0x5555874576a0, 24) = 0
[pid 12558] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12558] setpgid(0, 0)               = 0
[pid 12558] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12558] write(3, "1000", 4)         = 4
[pid 12558] close(3)                    = 0
[pid 12558] write(1, "executing program\n", 18executing program
) = 18
[pid 12558] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12558] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12558] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12558] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12558] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12558] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12558] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12559 attached
 => {parent_tid=[12559]}, 88) = 12559
[pid 12558] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12558] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12558] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12559] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12559] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12559] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12559] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12558] <... futex resumed>)        = 0
[pid 12558] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12558] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12559] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12559] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12558] <... futex resumed>)        = 0
[pid 12558] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12558] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12559] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12559] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12558] <... futex resumed>)        = 0
[pid 12558] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12558] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12559] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12559] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12558] <... futex resumed>)        = 0
[pid 12558] exit_group(0)               = ?
[pid 12559] +++ exited with 0 +++
[pid 12558] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12558, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12560
./strace-static-x86_64: Process 12560 attached
[pid 12560] set_robust_list(0x5555874576a0, 24) = 0
[pid 12560] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12560] setpgid(0, 0)               = 0
[pid 12560] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12560] write(3, "1000", 4)         = 4
[pid 12560] close(3)                    = 0
[pid 12560] write(1, "executing program\n", 18executing program
) = 18
[pid 12560] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12560] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12560] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12560] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12560] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12560] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12560] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12561 attached
 => {parent_tid=[12561]}, 88) = 12561
[pid 12561] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12561] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12561] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12560] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12560] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12561] <... futex resumed>)        = 0
[pid 12561] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12561] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12561] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12560] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12560] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12561] <... futex resumed>)        = 0
[pid 12561] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12561] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12561] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12560] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12560] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12561] <... futex resumed>)        = 0
[pid 12561] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12561] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12561] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12560] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12560] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12561] <... futex resumed>)        = 0
[pid 12561] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12561] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12561] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12560] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12560] exit_group(0)               = ?
[pid 12561] <... futex resumed>)        = ?
[pid 12561] +++ exited with 0 +++
[pid 12560] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12560, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12562
./strace-static-x86_64: Process 12562 attached
[pid 12562] set_robust_list(0x5555874576a0, 24) = 0
[pid 12562] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12562] setpgid(0, 0)               = 0
[pid 12562] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12562] write(3, "1000", 4)         = 4
[pid 12562] close(3)                    = 0
executing program
[pid 12562] write(1, "executing program\n", 18) = 18
[pid 12562] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12562] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12562] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12562] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12562] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12562] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12562] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12563 attached
 => {parent_tid=[12563]}, 88) = 12563
[pid 12563] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12563] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12563] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12562] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12562] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12562] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12563] <... futex resumed>)        = 0
[pid 12563] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12563] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12562] <... futex resumed>)        = 0
[pid 12562] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12562] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12563] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12563] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12562] <... futex resumed>)        = 0
[pid 12562] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12562] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12563] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12563] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12562] <... futex resumed>)        = 0
[pid 12562] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12562] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12563] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12563] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12562] <... futex resumed>)        = 0
[pid 12562] exit_group(0)               = ?
[pid 12563] +++ exited with 0 +++
[pid 12562] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12562, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12564
./strace-static-x86_64: Process 12564 attached
[pid 12564] set_robust_list(0x5555874576a0, 24) = 0
[pid 12564] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12564] setpgid(0, 0)               = 0
[pid 12564] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12564] write(3, "1000", 4)         = 4
[pid 12564] close(3)                    = 0
executing program
[pid 12564] write(1, "executing program\n", 18) = 18
[pid 12564] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12564] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12564] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12564] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12564] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12564] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12564] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12565 attached
 <unfinished ...>
[pid 12565] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12564] <... clone3 resumed> => {parent_tid=[12565]}, 88) = 12565
[pid 12565] <... set_robust_list resumed>) = 0
[pid 12565] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12565] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12564] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12564] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12565] <... futex resumed>)        = 0
[pid 12565] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12564] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12565] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12565] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12564] <... futex resumed>)        = 0
[pid 12564] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12564] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12565] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12565] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12564] <... futex resumed>)        = 0
[pid 12565] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12564] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12565] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12565] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12564] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12565] <... futex resumed>)        = 0
[pid 12564] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12564] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12565] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12564] <... futex resumed>)        = 0
[pid 12565] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12564] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12565] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12564] <... futex resumed>)        = 0
[pid 12564] exit_group(0)               = ?
[pid 12565] +++ exited with 0 +++
[pid 12564] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12564, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12566
./strace-static-x86_64: Process 12566 attached
[pid 12566] set_robust_list(0x5555874576a0, 24) = 0
[pid 12566] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12566] setpgid(0, 0)               = 0
[pid 12566] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12566] write(3, "1000", 4)         = 4
[pid 12566] close(3)                    = 0
[pid 12566] write(1, "executing program\n", 18executing program
) = 18
[pid 12566] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12566] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12566] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12566] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12566] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12566] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12566] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12567 attached
 => {parent_tid=[12567]}, 88) = 12567
[pid 12567] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12567] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12567] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12566] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12566] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12567] <... futex resumed>)        = 0
[pid 12567] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12567] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12567] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12566] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12566] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12567] <... futex resumed>)        = 0
[pid 12567] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12567] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12567] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12566] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12566] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12567] <... futex resumed>)        = 0
[pid 12567] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12567] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12567] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12566] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12566] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12567] <... futex resumed>)        = 0
[pid 12567] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12567] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12567] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12566] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12566] exit_group(0)               = ?
[pid 12567] <... futex resumed>)        = ?
[pid 12567] +++ exited with 0 +++
[pid 12566] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12566, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12568
./strace-static-x86_64: Process 12568 attached
[pid 12568] set_robust_list(0x5555874576a0, 24) = 0
[pid 12568] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12568] setpgid(0, 0)               = 0
[pid 12568] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12568] write(3, "1000", 4)         = 4
[pid 12568] close(3)                    = 0
executing program
[pid 12568] write(1, "executing program\n", 18) = 18
[pid 12568] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12568] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12568] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12568] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12568] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12568] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12568] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12569 attached
 => {parent_tid=[12569]}, 88) = 12569
[pid 12568] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12568] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12568] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12569] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12569] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12569] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12569] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12568] <... futex resumed>)        = 0
[pid 12568] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12568] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12569] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12569] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12568] <... futex resumed>)        = 0
[pid 12568] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12568] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12569] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12569] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12568] <... futex resumed>)        = 0
[pid 12568] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12568] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12569] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12569] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12568] <... futex resumed>)        = 0
[pid 12568] exit_group(0)               = ?
[pid 12569] +++ exited with 0 +++
[pid 12568] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12568, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12570
./strace-static-x86_64: Process 12570 attached
[pid 12570] set_robust_list(0x5555874576a0, 24) = 0
[pid 12570] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12570] setpgid(0, 0)               = 0
[pid 12570] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12570] write(3, "1000", 4)         = 4
[pid 12570] close(3)                    = 0
[pid 12570] write(1, "executing program\n", 18executing program
) = 18
[pid 12570] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12570] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12570] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12570] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12570] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12570] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12570] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12571 attached
 <unfinished ...>
[pid 12571] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12571] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12571] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12570] <... clone3 resumed> => {parent_tid=[12571]}, 88) = 12571
[pid 12570] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12570] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12571] <... futex resumed>)        = 0
[pid 12571] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12571] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12571] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12570] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12570] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12571] <... futex resumed>)        = 0
[pid 12571] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12571] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12571] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12570] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12570] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12571] <... futex resumed>)        = 0
[pid 12571] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12571] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12571] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12570] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12570] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12571] <... futex resumed>)        = 0
[pid 12571] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12570] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12571] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12571] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12571] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12570] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12570] exit_group(0)               = ?
[pid 12571] <... futex resumed>)        = ?
[pid 12571] +++ exited with 0 +++
[pid 12570] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12570, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12572
./strace-static-x86_64: Process 12572 attached
[pid 12572] set_robust_list(0x5555874576a0, 24) = 0
[pid 12572] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12572] setpgid(0, 0)               = 0
[pid 12572] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12572] write(3, "1000", 4)         = 4
[pid 12572] close(3executing program
)                    = 0
[pid 12572] write(1, "executing program\n", 18) = 18
[pid 12572] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12572] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12572] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12572] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12572] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12572] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12572] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12573]}, 88) = 12573
./strace-static-x86_64: Process 12573 attached
[pid 12572] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12573] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12573] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12573] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12572] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12572] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12573] <... futex resumed>)        = 0
[pid 12573] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12573] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12573] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12572] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12572] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12573] <... futex resumed>)        = 0
[pid 12573] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12573] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12573] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12572] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12572] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12573] <... futex resumed>)        = 0
[pid 12573] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12573] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12573] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12572] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12572] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12573] <... futex resumed>)        = 0
[pid 12573] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12573] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12573] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12572] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12572] exit_group(0)               = ?
[pid 12573] <... futex resumed>)        = ?
[pid 12573] +++ exited with 0 +++
[pid 12572] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12572, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12574 attached
, child_tidptr=0x555587457690) = 12574
[pid 12574] set_robust_list(0x5555874576a0, 24) = 0
[pid 12574] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12574] setpgid(0, 0)               = 0
[pid 12574] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12574] write(3, "1000", 4)         = 4
[pid 12574] close(3)                    = 0
[pid 12574] write(1, "executing program\n", 18executing program
) = 18
[pid 12574] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12574] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12574] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12574] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12574] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12574] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12574] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12575 attached
 => {parent_tid=[12575]}, 88) = 12575
[pid 12575] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12574] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12574] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12574] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12575] <... set_robust_list resumed>) = 0
[pid 12575] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12575] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12575] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12574] <... futex resumed>)        = 0
[pid 12574] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12574] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12575] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12575] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12574] <... futex resumed>)        = 0
[pid 12574] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12574] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12575] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12575] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12574] <... futex resumed>)        = 0
[pid 12574] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12574] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12575] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12575] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12574] <... futex resumed>)        = 0
[pid 12574] exit_group(0)               = ?
[pid 12575] +++ exited with 0 +++
[pid 12574] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12574, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12576 attached
, child_tidptr=0x555587457690) = 12576
[pid 12576] set_robust_list(0x5555874576a0, 24) = 0
[pid 12576] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12576] setpgid(0, 0)               = 0
[pid 12576] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12576] write(3, "1000", 4)         = 4
[pid 12576] close(3)                    = 0
[pid 12576] write(1, "executing program\n", 18executing program
) = 18
[pid 12576] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12576] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12576] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12576] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12576] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12576] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12576] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12577 attached
 => {parent_tid=[12577]}, 88) = 12577
[pid 12577] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12577] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12577] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12576] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12576] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12577] <... futex resumed>)        = 0
[pid 12577] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12577] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12577] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12576] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12576] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12577] <... futex resumed>)        = 0
[pid 12576] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12577] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12577] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12576] <... futex resumed>)        = 0
[pid 12576] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12576] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12577] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12577] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12576] <... futex resumed>)        = 0
[pid 12577] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12576] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12576] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12577] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12577] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12577] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12576] <... futex resumed>)        = 0
[pid 12577] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12576] exit_group(0)               = ?
[pid 12577] <... futex resumed>)        = ?
[pid 12577] +++ exited with 0 +++
[pid 12576] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12576, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12578
./strace-static-x86_64: Process 12578 attached
[pid 12578] set_robust_list(0x5555874576a0, 24) = 0
[pid 12578] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12578] setpgid(0, 0)               = 0
[pid 12578] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12578] write(3, "1000", 4)         = 4
[pid 12578] close(3)                    = 0
[pid 12578] write(1, "executing program\n", 18executing program
) = 18
[pid 12578] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12578] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12578] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12578] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12578] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12578] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12578] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12579]}, 88) = 12579
./strace-static-x86_64: Process 12579 attached
[pid 12578] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12579] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12578] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12579] <... set_robust_list resumed>) = 0
[pid 12579] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12578] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12579] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12578] <... futex resumed>)        = 0
[pid 12579] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12578] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12579] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12579] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12578] <... futex resumed>)        = 0
[pid 12578] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12578] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12579] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12579] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12578] <... futex resumed>)        = 0
[pid 12578] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12578] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12579] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12579] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12578] <... futex resumed>)        = 0
[pid 12578] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12578] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12579] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12579] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12578] <... futex resumed>)        = 0
[pid 12578] exit_group(0)               = ?
[pid 12579] +++ exited with 0 +++
[pid 12578] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12578, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12580 attached
 <unfinished ...>
[pid 12580] set_robust_list(0x5555874576a0, 24) = 0
[pid 12580] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12580] setpgid(0, 0)               = 0
[pid 12580] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 12580
[pid 12580] <... openat resumed>)       = 3
[pid 12580] write(3, "1000", 4)         = 4
[pid 12580] close(3executing program
)                    = 0
[pid 12580] write(1, "executing program\n", 18) = 18
[pid 12580] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12580] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12580] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12580] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12580] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12580] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12580] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12581 attached
 => {parent_tid=[12581]}, 88) = 12581
[pid 12581] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12581] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12581] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12580] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12580] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12581] <... futex resumed>)        = 0
[pid 12581] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12580] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12581] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12581] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12580] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12580] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12581] <... futex resumed>)        = 0
[pid 12581] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12580] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12581] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12580] <... futex resumed>)        = 0
[pid 12580] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12581] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12580] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12581] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12581] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12580] <... futex resumed>)        = 0
[pid 12580] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12580] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12581] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12581] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12580] <... futex resumed>)        = 0
[pid 12581] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12580] exit_group(0)               = ?
[pid 12581] <... futex resumed>)        = ?
[pid 12581] +++ exited with 0 +++
[pid 12580] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12580, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12582
./strace-static-x86_64: Process 12582 attached
[pid 12582] set_robust_list(0x5555874576a0, 24) = 0
[pid 12582] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12582] setpgid(0, 0)               = 0
[pid 12582] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12582] write(3, "1000", 4)         = 4
[pid 12582] close(3executing program
)                    = 0
[pid 12582] write(1, "executing program\n", 18) = 18
[pid 12582] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12582] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12582] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12582] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12582] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12582] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12582] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12583 attached
 <unfinished ...>
[pid 12583] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12582] <... clone3 resumed> => {parent_tid=[12583]}, 88) = 12583
[pid 12582] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12582] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12582] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12583] <... set_robust_list resumed>) = 0
[pid 12583] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12583] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12583] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12582] <... futex resumed>)        = 0
[pid 12583] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12582] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12583] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12582] <... futex resumed>)        = 0
[pid 12583] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12582] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12583] <... futex resumed>)        = 0
[pid 12582] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12583] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12582] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12583] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12582] <... futex resumed>)        = 0
[pid 12583] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12582] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12583] <... futex resumed>)        = 0
[pid 12582] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12583] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12582] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12582] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12583] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12583] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12582] <... futex resumed>)        = 0
[pid 12583] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12582] exit_group(0 <unfinished ...>
[pid 12583] <... futex resumed>)        = ?
[pid 12582] <... exit_group resumed>)   = ?
[pid 12583] +++ exited with 0 +++
[pid 12582] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12582, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12584 attached
, child_tidptr=0x555587457690) = 12584
[pid 12584] set_robust_list(0x5555874576a0, 24) = 0
[pid 12584] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12584] setpgid(0, 0)               = 0
[pid 12584] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12584] write(3, "1000", 4)         = 4
[pid 12584] close(3)                    = 0
executing program
[pid 12584] write(1, "executing program\n", 18) = 18
[pid 12584] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12584] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12584] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12584] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12584] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12584] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12584] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12585]}, 88) = 12585
[pid 12584] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12584] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12584] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12585 attached
 <unfinished ...>
[pid 12585] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12585] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12585] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12585] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12584] <... futex resumed>)        = 0
[pid 12584] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12585] <... futex resumed>)        = 1
[pid 12584] <... futex resumed>)        = 0
[pid 12584] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12585] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12585] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12584] <... futex resumed>)        = 0
[pid 12584] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12584] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12585] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12585] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12584] <... futex resumed>)        = 0
[pid 12584] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12584] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12585] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12585] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12584] <... futex resumed>)        = 0
[pid 12585] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12584] exit_group(0)               = ?
[pid 12585] <... futex resumed>)        = ?
[pid 12585] +++ exited with 0 +++
[pid 12584] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12584, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12586
./strace-static-x86_64: Process 12586 attached
[pid 12586] set_robust_list(0x5555874576a0, 24) = 0
[pid 12586] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12586] setpgid(0, 0)               = 0
[pid 12586] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12586] write(3, "1000", 4)         = 4
[pid 12586] close(3)                    = 0
[pid 12586] write(1, "executing program\n", 18executing program
) = 18
[pid 12586] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12586] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12586] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12586] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12586] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12586] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12586] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12587 attached
 <unfinished ...>
[pid 12587] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12587] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12587] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12586] <... clone3 resumed> => {parent_tid=[12587]}, 88) = 12587
[pid 12586] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12586] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12587] <... futex resumed>)        = 0
[pid 12587] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12587] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12587] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12586] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12586] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12587] <... futex resumed>)        = 0
[pid 12587] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12587] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12587] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12586] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12586] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12587] <... futex resumed>)        = 0
[pid 12587] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12587] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12587] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12586] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12586] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12587] <... futex resumed>)        = 0
[pid 12587] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12587] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12587] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12586] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12586] exit_group(0)               = ?
[pid 12587] <... futex resumed>)        = ?
[pid 12587] +++ exited with 0 +++
[pid 12586] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12586, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12588
./strace-static-x86_64: Process 12588 attached
[pid 12588] set_robust_list(0x5555874576a0, 24) = 0
[pid 12588] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12588] setpgid(0, 0)               = 0
[pid 12588] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12588] write(3, "1000", 4)         = 4
[pid 12588] close(3)                    = 0
[pid 12588] write(1, "executing program\n", 18executing program
) = 18
[pid 12588] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12588] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12588] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12588] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12588] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12588] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12588] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12589 attached
 => {parent_tid=[12589]}, 88) = 12589
[pid 12588] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12588] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12588] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12589] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12589] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12589] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12589] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12588] <... futex resumed>)        = 0
[pid 12588] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12588] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12589] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12589] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12588] <... futex resumed>)        = 0
[pid 12588] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12588] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12589] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12589] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12588] <... futex resumed>)        = 0
[pid 12588] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12588] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12589] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12589] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12588] <... futex resumed>)        = 0
[pid 12588] exit_group(0)               = ?
[pid 12589] +++ exited with 0 +++
[pid 12588] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12588, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12590 attached
 <unfinished ...>
[pid 12590] set_robust_list(0x5555874576a0, 24) = 0
[pid 12590] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12590] setpgid(0, 0)               = 0
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 12590
[pid 12590] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12590] write(3, "1000", 4)         = 4
[pid 12590] close(3)                    = 0
executing program
[pid 12590] write(1, "executing program\n", 18) = 18
[pid 12590] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12590] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12590] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12590] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12590] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12590] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12590] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12591 attached
 => {parent_tid=[12591]}, 88) = 12591
[pid 12591] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12591] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12591] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12590] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12590] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12591] <... futex resumed>)        = 0
[pid 12591] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12591] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12591] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12590] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12590] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12591] <... futex resumed>)        = 0
[pid 12591] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12590] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12591] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12590] <... futex resumed>)        = 0
[pid 12590] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12591] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12590] <... futex resumed>)        = 0
[pid 12591] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12590] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12591] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12591] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12590] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12590] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12591] <... futex resumed>)        = 0
[pid 12591] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12591] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12590] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12591] <... futex resumed>)        = 0
[pid 12591] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12590] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12590] exit_group(0)               = ?
[pid 12591] <... futex resumed>)        = ?
[pid 12591] +++ exited with 0 +++
[pid 12590] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12590, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12592
./strace-static-x86_64: Process 12592 attached
[pid 12592] set_robust_list(0x5555874576a0, 24) = 0
[pid 12592] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12592] setpgid(0, 0)               = 0
[pid 12592] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12592] write(3, "1000", 4)         = 4
[pid 12592] close(3)                    = 0
[pid 12592] write(1, "executing program\n", 18executing program
) = 18
[pid 12592] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12592] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12592] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12592] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12592] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12592] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12592] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12593]}, 88) = 12593
./strace-static-x86_64: Process 12593 attached
[pid 12592] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12592] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12592] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12593] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12593] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12593] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12593] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12592] <... futex resumed>)        = 0
[pid 12593] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12592] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12593] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12592] <... futex resumed>)        = 0
[pid 12593] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12592] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12593] <... futex resumed>)        = 0
[pid 12592] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12593] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12592] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12593] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12592] <... futex resumed>)        = 0
[pid 12593] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12592] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12593] <... futex resumed>)        = 0
[pid 12592] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12593] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12592] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12593] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12592] <... futex resumed>)        = 0
[pid 12593] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12592] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12593] <... futex resumed>)        = 0
[pid 12592] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12593] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12592] exit_group(0 <unfinished ...>
[pid 12593] <... futex resumed>)        = ?
[pid 12592] <... exit_group resumed>)   = ?
[pid 12593] +++ exited with 0 +++
[pid 12592] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12592, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12594
./strace-static-x86_64: Process 12594 attached
[pid 12594] set_robust_list(0x5555874576a0, 24) = 0
[pid 12594] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12594] setpgid(0, 0)               = 0
[pid 12594] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12594] write(3, "1000", 4)         = 4
[pid 12594] close(3)                    = 0
[pid 12594] write(1, "executing program\n", 18executing program
) = 18
[pid 12594] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12594] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12594] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12594] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12594] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12594] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12594] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12595]}, 88) = 12595
[pid 12594] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12594] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12594] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12595 attached
 <unfinished ...>
[pid 12595] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12595] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12595] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12595] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12594] <... futex resumed>)        = 0
[pid 12595] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12594] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12595] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12594] <... futex resumed>)        = 0
[pid 12594] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12595] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12594] <... futex resumed>)        = 0
[pid 12595] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12594] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12594] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12595] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12595] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12594] <... futex resumed>)        = 0
[pid 12594] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12594] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12595] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12595] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12594] <... futex resumed>)        = 0
[pid 12594] exit_group(0)               = ?
[pid 12595] +++ exited with 0 +++
[pid 12594] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12594, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12596
./strace-static-x86_64: Process 12596 attached
[pid 12596] set_robust_list(0x5555874576a0, 24) = 0
[pid 12596] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12596] setpgid(0, 0)               = 0
[pid 12596] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12596] write(3, "1000", 4)         = 4
[pid 12596] close(3)                    = 0
[pid 12596] write(1, "executing program\n", 18executing program
) = 18
[pid 12596] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12596] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12596] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12596] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12596] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12596] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12596] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12597 attached
 <unfinished ...>
[pid 12597] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12597] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12597] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12596] <... clone3 resumed> => {parent_tid=[12597]}, 88) = 12597
[pid 12596] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12596] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12597] <... futex resumed>)        = 0
[pid 12596] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12597] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12597] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12596] <... futex resumed>)        = 0
[pid 12596] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12596] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12597] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12597] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12596] <... futex resumed>)        = 0
[pid 12596] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12596] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12597] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12597] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12596] <... futex resumed>)        = 0
[pid 12596] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12596] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12597] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12597] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12596] <... futex resumed>)        = 0
[pid 12596] exit_group(0)               = ?
[pid 12597] +++ exited with 0 +++
[pid 12596] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12596, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12598
./strace-static-x86_64: Process 12598 attached
[pid 12598] set_robust_list(0x5555874576a0, 24) = 0
[pid 12598] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12598] setpgid(0, 0)               = 0
[pid 12598] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12598] write(3, "1000", 4)         = 4
[pid 12598] close(3)                    = 0
[pid 12598] write(1, "executing program\n", 18executing program
) = 18
[pid 12598] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12598] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12598] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12598] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12598] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12598] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12598] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12599 attached
 => {parent_tid=[12599]}, 88) = 12599
[pid 12599] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12599] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12599] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12598] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12598] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12599] <... futex resumed>)        = 0
[pid 12599] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12599] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12599] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12598] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12598] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12599] <... futex resumed>)        = 0
[pid 12599] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12599] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12599] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12598] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12598] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12599] <... futex resumed>)        = 0
[pid 12599] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12599] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12599] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12598] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12598] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12599] <... futex resumed>)        = 0
[pid 12599] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12599] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12599] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12598] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12598] exit_group(0)               = ?
[pid 12599] <... futex resumed>)        = ?
[pid 12599] +++ exited with 0 +++
[pid 12598] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12598, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12600
./strace-static-x86_64: Process 12600 attached
[pid 12600] set_robust_list(0x5555874576a0, 24) = 0
[pid 12600] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12600] setpgid(0, 0)               = 0
[pid 12600] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12600] write(3, "1000", 4)         = 4
[pid 12600] close(3executing program
)                    = 0
[pid 12600] write(1, "executing program\n", 18) = 18
[pid 12600] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12600] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12600] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12600] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12600] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12600] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12600] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12601 attached
 => {parent_tid=[12601]}, 88) = 12601
[pid 12601] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12600] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12601] <... set_robust_list resumed>) = 0
[pid 12600] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12601] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12600] <... futex resumed>)        = 0
[pid 12601] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12600] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12601] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12601] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12600] <... futex resumed>)        = 0
[pid 12600] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12600] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12601] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12601] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12600] <... futex resumed>)        = 0
[pid 12600] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12600] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12601] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12601] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12600] <... futex resumed>)        = 0
[pid 12600] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12600] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12601] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12601] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12600] <... futex resumed>)        = 0
[pid 12600] exit_group(0)               = ?
[pid 12601] +++ exited with 0 +++
[pid 12600] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12600, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12602
./strace-static-x86_64: Process 12602 attached
[pid 12602] set_robust_list(0x5555874576a0, 24) = 0
[pid 12602] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12602] setpgid(0, 0)               = 0
[pid 12602] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12602] write(3, "1000", 4)         = 4
[pid 12602] close(3executing program
)                    = 0
[pid 12602] write(1, "executing program\n", 18) = 18
[pid 12602] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12602] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12602] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12602] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12602] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12602] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12602] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12603]}, 88) = 12603
./strace-static-x86_64: Process 12603 attached
[pid 12602] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12602] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12602] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12603] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12603] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12603] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12603] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12602] <... futex resumed>)        = 0
[pid 12602] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12602] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12603] <... futex resumed>)        = 1
[pid 12603] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12603] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12602] <... futex resumed>)        = 0
[pid 12602] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12602] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12603] <... futex resumed>)        = 1
[pid 12603] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12603] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12602] <... futex resumed>)        = 0
[pid 12602] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12602] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12603] <... futex resumed>)        = 1
[pid 12603] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12603] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12602] <... futex resumed>)        = 0
[pid 12602] exit_group(0)               = ?
[pid 12603] <... futex resumed>)        = ?
[pid 12603] +++ exited with 0 +++
[pid 12602] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12602, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12604
./strace-static-x86_64: Process 12604 attached
[pid 12604] set_robust_list(0x5555874576a0, 24) = 0
[pid 12604] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12604] setpgid(0, 0)               = 0
[pid 12604] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12604] write(3, "1000", 4)         = 4
[pid 12604] close(3)                    = 0
executing program
[pid 12604] write(1, "executing program\n", 18) = 18
[pid 12604] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12604] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12604] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12604] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12604] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12604] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12604] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12605 attached
 <unfinished ...>
[pid 12605] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12604] <... clone3 resumed> => {parent_tid=[12605]}, 88) = 12605
[pid 12604] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12604] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12604] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12605] <... set_robust_list resumed>) = 0
[pid 12605] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12605] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12605] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12604] <... futex resumed>)        = 0
[pid 12604] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12604] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12605] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12605] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12604] <... futex resumed>)        = 0
[pid 12604] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12604] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12605] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12605] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12604] <... futex resumed>)        = 0
[pid 12604] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12604] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12605] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12605] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12604] <... futex resumed>)        = 0
[pid 12604] exit_group(0)               = ?
[pid 12605] +++ exited with 0 +++
[pid 12604] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12604, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12606 attached
, child_tidptr=0x555587457690) = 12606
[pid 12606] set_robust_list(0x5555874576a0, 24) = 0
[pid 12606] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12606] setpgid(0, 0)               = 0
[pid 12606] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12606] write(3, "1000", 4)         = 4
[pid 12606] close(3)                    = 0
[pid 12606] write(1, "executing program\n", 18executing program
) = 18
[pid 12606] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12606] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12606] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12606] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12606] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12606] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12606] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12607 attached
 => {parent_tid=[12607]}, 88) = 12607
[pid 12606] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12606] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12606] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12607] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12607] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12607] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12607] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12606] <... futex resumed>)        = 0
[pid 12606] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12606] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12607] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12607] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12606] <... futex resumed>)        = 0
[pid 12606] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12606] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12607] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12607] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12606] <... futex resumed>)        = 0
[pid 12606] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12606] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12607] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12607] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12607] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12606] <... futex resumed>)        = 0
[pid 12606] exit_group(0)               = ?
[pid 12607] <... futex resumed>)        = ?
[pid 12607] +++ exited with 0 +++
[pid 12606] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12606, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12608 attached
, child_tidptr=0x555587457690) = 12608
[pid 12608] set_robust_list(0x5555874576a0, 24) = 0
[pid 12608] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12608] setpgid(0, 0)               = 0
[pid 12608] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12608] write(3, "1000", 4)         = 4
[pid 12608] close(3executing program
)                    = 0
[pid 12608] write(1, "executing program\n", 18) = 18
[pid 12608] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12608] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12608] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12608] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12608] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12608] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12608] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12609]}, 88) = 12609
[pid 12608] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12608] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12608] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12609 attached
 <unfinished ...>
[pid 12609] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12609] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12609] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12609] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12608] <... futex resumed>)        = 0
[pid 12608] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12608] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12609] <... futex resumed>)        = 1
[pid 12609] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12609] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12608] <... futex resumed>)        = 0
[pid 12608] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12608] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12609] <... futex resumed>)        = 1
[pid 12609] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12609] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12608] <... futex resumed>)        = 0
[pid 12608] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12608] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12609] <... futex resumed>)        = 1
[pid 12609] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12609] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12608] <... futex resumed>)        = 0
[pid 12608] exit_group(0)               = ?
[pid 12609] <... futex resumed>)        = ?
[pid 12609] +++ exited with 0 +++
[pid 12608] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12608, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12610
./strace-static-x86_64: Process 12610 attached
[pid 12610] set_robust_list(0x5555874576a0, 24) = 0
[pid 12610] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12610] setpgid(0, 0)               = 0
[pid 12610] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12610] write(3, "1000", 4)         = 4
executing program
[pid 12610] close(3)                    = 0
[pid 12610] write(1, "executing program\n", 18) = 18
[pid 12610] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12610] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12610] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12610] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12610] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12610] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12610] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12611 attached
 => {parent_tid=[12611]}, 88) = 12611
[pid 12610] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12610] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12610] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12611] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12611] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12611] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12611] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12610] <... futex resumed>)        = 0
[pid 12610] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12610] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12611] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12611] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12610] <... futex resumed>)        = 0
[pid 12610] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12610] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12611] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12611] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12610] <... futex resumed>)        = 0
[pid 12610] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12610] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12611] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12611] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12610] <... futex resumed>)        = 0
[pid 12610] exit_group(0)               = ?
[pid 12611] +++ exited with 0 +++
[pid 12610] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12610, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12612
./strace-static-x86_64: Process 12612 attached
[pid 12612] set_robust_list(0x5555874576a0, 24) = 0
[pid 12612] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12612] setpgid(0, 0)               = 0
[pid 12612] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12612] write(3, "1000", 4)         = 4
[pid 12612] close(3executing program
)                    = 0
[pid 12612] write(1, "executing program\n", 18) = 18
[pid 12612] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12612] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12612] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12612] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12612] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12612] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12612] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12613]}, 88) = 12613
./strace-static-x86_64: Process 12613 attached
[pid 12612] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12613] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12613] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12613] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12612] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12612] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12613] <... futex resumed>)        = 0
[pid 12613] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12613] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12613] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12612] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12612] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12613] <... futex resumed>)        = 0
[pid 12613] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12612] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12613] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12613] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12613] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12612] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12612] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12613] <... futex resumed>)        = 0
[pid 12613] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12612] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12613] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12613] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12613] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12612] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12612] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12613] <... futex resumed>)        = 0
[pid 12612] <... futex resumed>)        = 1
[pid 12612] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12613] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12613] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12612] <... futex resumed>)        = 0
[pid 12613] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12612] exit_group(0)               = ?
[pid 12613] <... futex resumed>)        = ?
[pid 12613] +++ exited with 0 +++
[pid 12612] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12612, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12614
./strace-static-x86_64: Process 12614 attached
[pid 12614] set_robust_list(0x5555874576a0, 24) = 0
[pid 12614] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12614] setpgid(0, 0)               = 0
[pid 12614] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12614] write(3, "1000", 4)         = 4
executing program
[pid 12614] close(3)                    = 0
[pid 12614] write(1, "executing program\n", 18) = 18
[pid 12614] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12614] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12614] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12614] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12614] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12614] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12614] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12615 attached
 => {parent_tid=[12615]}, 88) = 12615
[pid 12615] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12615] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12615] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12614] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12614] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12615] <... futex resumed>)        = 0
[pid 12615] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12614] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12615] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12615] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12615] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12614] <... futex resumed>)        = 0
[pid 12615] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12614] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12615] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12614] <... futex resumed>)        = 0
[pid 12614] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12615] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12615] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12615] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12614] <... futex resumed>)        = 0
[pid 12614] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12615] <... futex resumed>)        = 0
[pid 12615] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12615] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12615] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12614] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12614] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12615] <... futex resumed>)        = 0
[pid 12615] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12615] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12615] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12614] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12614] exit_group(0)               = ?
[pid 12615] <... futex resumed>)        = ?
[pid 12615] +++ exited with 0 +++
[pid 12614] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12614, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12616
./strace-static-x86_64: Process 12616 attached
[pid 12616] set_robust_list(0x5555874576a0, 24) = 0
[pid 12616] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12616] setpgid(0, 0)               = 0
[pid 12616] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12616] write(3, "1000", 4)         = 4
[pid 12616] close(3)                    = 0
[pid 12616] write(1, "executing program\n", 18executing program
) = 18
[pid 12616] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12616] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12616] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12616] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12616] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12616] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12616] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12617 attached
 => {parent_tid=[12617]}, 88) = 12617
[pid 12617] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12617] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12617] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12616] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12616] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12617] <... futex resumed>)        = 0
[pid 12617] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12617] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12617] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12616] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12616] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12617] <... futex resumed>)        = 0
[pid 12617] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12617] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12617] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12616] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12616] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12617] <... futex resumed>)        = 0
[pid 12617] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12617] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12617] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12616] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12616] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12617] <... futex resumed>)        = 0
[pid 12617] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12616] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12617] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12617] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12617] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12616] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12616] exit_group(0)               = ?
[pid 12617] <... futex resumed>)        = ?
[pid 12617] +++ exited with 0 +++
[pid 12616] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12616, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12618
./strace-static-x86_64: Process 12618 attached
[pid 12618] set_robust_list(0x5555874576a0, 24) = 0
[pid 12618] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12618] setpgid(0, 0)               = 0
[pid 12618] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12618] write(3, "1000", 4)         = 4
[pid 12618] close(3)                    = 0
executing program
[pid 12618] write(1, "executing program\n", 18) = 18
[pid 12618] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12618] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12618] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12618] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12618] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12618] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12618] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12619 attached
 => {parent_tid=[12619]}, 88) = 12619
[pid 12618] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12619] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12618] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12619] <... set_robust_list resumed>) = 0
[pid 12618] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12619] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12618] <... futex resumed>)        = 0
[pid 12619] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12619] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12618] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12619] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12619] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12618] <... futex resumed>)        = 0
[pid 12618] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12618] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12619] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12619] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12618] <... futex resumed>)        = 0
[pid 12618] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12618] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12619] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12619] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12618] <... futex resumed>)        = 0
[pid 12618] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12618] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12619] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12619] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12618] <... futex resumed>)        = 0
[pid 12618] exit_group(0)               = ?
[pid 12619] +++ exited with 0 +++
[pid 12618] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12618, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12620
./strace-static-x86_64: Process 12620 attached
[pid 12620] set_robust_list(0x5555874576a0, 24) = 0
[pid 12620] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12620] setpgid(0, 0)               = 0
[pid 12620] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12620] write(3, "1000", 4)         = 4
[pid 12620] close(3)                    = 0
[pid 12620] write(1, "executing program\n", 18executing program
) = 18
[pid 12620] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12620] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12620] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12620] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12620] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12620] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12620] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12621]}, 88) = 12621
[pid 12620] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 12621 attached
 <unfinished ...>
[pid 12621] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12621] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12621] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12620] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12620] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12621] <... futex resumed>)        = 0
[pid 12621] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12620] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12621] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12621] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12620] <... futex resumed>)        = 0
[pid 12620] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12620] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12621] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12621] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12620] <... futex resumed>)        = 0
[pid 12620] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12620] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12621] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12621] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12620] <... futex resumed>)        = 0
[pid 12620] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12620] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12621] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12621] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12620] <... futex resumed>)        = 0
[pid 12620] exit_group(0)               = ?
[pid 12621] +++ exited with 0 +++
[pid 12620] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12620, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12622
./strace-static-x86_64: Process 12622 attached
[pid 12622] set_robust_list(0x5555874576a0, 24) = 0
[pid 12622] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12622] setpgid(0, 0)               = 0
[pid 12622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12622] write(3, "1000", 4)         = 4
[pid 12622] close(3)                    = 0
executing program
[pid 12622] write(1, "executing program\n", 18) = 18
[pid 12622] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12622] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12622] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12622] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12622] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12622] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12623]}, 88) = 12623
[pid 12622] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12622] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12622] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12623 attached
 <unfinished ...>
[pid 12623] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12623] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12623] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12623] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12622] <... futex resumed>)        = 0
[pid 12622] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12622] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12623] <... futex resumed>)        = 1
[pid 12623] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12623] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12622] <... futex resumed>)        = 0
[pid 12622] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12622] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12623] <... futex resumed>)        = 1
[pid 12623] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12623] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12622] <... futex resumed>)        = 0
[pid 12622] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12622] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12623] <... futex resumed>)        = 1
[pid 12623] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12623] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12622] <... futex resumed>)        = 0
[pid 12622] exit_group(0)               = ?
[pid 12623] <... futex resumed>)        = ?
[pid 12623] +++ exited with 0 +++
[pid 12622] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12622, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12624
./strace-static-x86_64: Process 12624 attached
[pid 12624] set_robust_list(0x5555874576a0, 24) = 0
[pid 12624] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12624] setpgid(0, 0)               = 0
[pid 12624] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12624] write(3, "1000", 4)         = 4
[pid 12624] close(3)                    = 0
[pid 12624] write(1, "executing program\n", 18executing program
) = 18
[pid 12624] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12624] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12624] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12624] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12624] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12624] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12624] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12625 attached
 => {parent_tid=[12625]}, 88) = 12625
[pid 12624] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12624] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12624] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12625] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12625] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12625] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12625] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12624] <... futex resumed>)        = 0
[pid 12624] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12624] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12625] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12625] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12624] <... futex resumed>)        = 0
[pid 12624] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12624] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12625] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12625] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12624] <... futex resumed>)        = 0
[pid 12624] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12624] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12625] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12625] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12624] <... futex resumed>)        = 0
[pid 12624] exit_group(0)               = ?
[pid 12625] +++ exited with 0 +++
[pid 12624] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12624, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12626
./strace-static-x86_64: Process 12626 attached
[pid 12626] set_robust_list(0x5555874576a0, 24) = 0
[pid 12626] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12626] setpgid(0, 0)               = 0
[pid 12626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12626] write(3, "1000", 4)         = 4
[pid 12626] close(3)                    = 0
[pid 12626] write(1, "executing program\n", 18executing program
) = 18
[pid 12626] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12626] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12626] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12626] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12626] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12626] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12626] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12627 attached
 <unfinished ...>
[pid 12627] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12627] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12627] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12626] <... clone3 resumed> => {parent_tid=[12627]}, 88) = 12627
[pid 12626] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12626] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12627] <... futex resumed>)        = 0
[pid 12627] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12627] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12627] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12626] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12626] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12627] <... futex resumed>)        = 0
[pid 12627] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12627] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12627] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12626] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12626] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12627] <... futex resumed>)        = 0
[pid 12627] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12626] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12627] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12627] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12627] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12626] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12626] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12627] <... futex resumed>)        = 0
[pid 12627] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12626] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12627] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12627] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12627] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12626] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12626] exit_group(0)               = ?
[pid 12627] <... futex resumed>)        = ?
[pid 12627] +++ exited with 0 +++
[pid 12626] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12626, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12628
./strace-static-x86_64: Process 12628 attached
[pid 12628] set_robust_list(0x5555874576a0, 24) = 0
[pid 12628] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12628] setpgid(0, 0)               = 0
[pid 12628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12628] write(3, "1000", 4)         = 4
[pid 12628] close(3)                    = 0
[pid 12628] write(1, "executing program\n", 18executing program
) = 18
[pid 12628] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12628] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12628] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12628] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12628] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12628] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12628] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12629 attached
 => {parent_tid=[12629]}, 88) = 12629
[pid 12628] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12628] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12628] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12629] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12629] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12629] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12629] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12629] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12628] <... futex resumed>)        = 0
[pid 12628] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12629] <... futex resumed>)        = 0
[pid 12628] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12629] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12629] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12628] <... futex resumed>)        = 0
[pid 12628] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12628] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12629] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12629] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12628] <... futex resumed>)        = 0
[pid 12628] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12628] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12629] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12629] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12628] <... futex resumed>)        = 0
[pid 12628] exit_group(0)               = ?
[pid 12629] +++ exited with 0 +++
[pid 12628] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12628, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12630
./strace-static-x86_64: Process 12630 attached
[pid 12630] set_robust_list(0x5555874576a0, 24) = 0
[pid 12630] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12630] setpgid(0, 0)               = 0
[pid 12630] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12630] write(3, "1000", 4)         = 4
[pid 12630] close(3)                    = 0
[pid 12630] write(1, "executing program\n", 18executing program
) = 18
[pid 12630] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12630] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12630] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12630] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12630] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12630] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12630] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12631 attached
 => {parent_tid=[12631]}, 88) = 12631
[pid 12631] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12630] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12631] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12631] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12630] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12630] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12631] <... futex resumed>)        = 0
[pid 12630] <... futex resumed>)        = 1
[pid 12631] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12630] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12631] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12631] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12631] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12630] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12630] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12631] <... futex resumed>)        = 0
[pid 12630] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12631] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12631] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12630] <... futex resumed>)        = 0
[pid 12631] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12630] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12631] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12630] <... futex resumed>)        = 0
[pid 12631] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12630] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12631] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12631] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12630] <... futex resumed>)        = 0
[pid 12631] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12630] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12631] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12630] <... futex resumed>)        = 0
[pid 12631] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12630] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12631] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12631] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12630] <... futex resumed>)        = 0
[pid 12630] exit_group(0)               = ?
[pid 12631] +++ exited with 0 +++
[pid 12630] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12630, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12632 attached
, child_tidptr=0x555587457690) = 12632
[pid 12632] set_robust_list(0x5555874576a0, 24) = 0
[pid 12632] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12632] setpgid(0, 0)               = 0
[pid 12632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12632] write(3, "1000", 4)         = 4
[pid 12632] close(3)                    = 0
[pid 12632] write(1, "executing program\n", 18executing program
) = 18
[pid 12632] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12632] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12632] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12632] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12632] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12632] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12632] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12633 attached
 => {parent_tid=[12633]}, 88) = 12633
[pid 12633] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12633] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12633] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12632] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12632] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12633] <... futex resumed>)        = 0
[pid 12633] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12632] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12633] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12633] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12633] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12632] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12632] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12633] <... futex resumed>)        = 0
[pid 12633] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12632] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12633] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12633] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12632] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12632] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12633] <... futex resumed>)        = 0
[pid 12633] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12633] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12633] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12632] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12632] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12633] <... futex resumed>)        = 0
[pid 12633] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12632] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12633] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12633] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12633] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12632] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12632] exit_group(0)               = ?
[pid 12633] <... futex resumed>)        = ?
[pid 12633] +++ exited with 0 +++
[pid 12632] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12632, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12634
./strace-static-x86_64: Process 12634 attached
[pid 12634] set_robust_list(0x5555874576a0, 24) = 0
[pid 12634] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12634] setpgid(0, 0)               = 0
[pid 12634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12634] write(3, "1000", 4)         = 4
executing program
[pid 12634] close(3)                    = 0
[pid 12634] write(1, "executing program\n", 18) = 18
[pid 12634] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12634] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12634] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12634] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12634] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12634] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12634] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12635]}, 88) = 12635
[pid 12634] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12634] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12634] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12635 attached
 <unfinished ...>
[pid 12635] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12635] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12635] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12635] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12634] <... futex resumed>)        = 0
[pid 12634] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12634] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12635] <... futex resumed>)        = 1
[pid 12635] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12635] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12634] <... futex resumed>)        = 0
[pid 12634] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12634] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12635] <... futex resumed>)        = 1
[pid 12635] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12635] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12634] <... futex resumed>)        = 0
[pid 12634] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12634] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12635] <... futex resumed>)        = 1
[pid 12635] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12635] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12634] <... futex resumed>)        = 0
[pid 12634] exit_group(0)               = ?
[pid 12635] <... futex resumed>)        = ?
[pid 12635] +++ exited with 0 +++
[pid 12634] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12634, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12636
./strace-static-x86_64: Process 12636 attached
[pid 12636] set_robust_list(0x5555874576a0, 24) = 0
[pid 12636] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12636] setpgid(0, 0)               = 0
[pid 12636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12636] write(3, "1000", 4)         = 4
[pid 12636] close(3)                    = 0
[pid 12636] write(1, "executing program\n", 18executing program
) = 18
[pid 12636] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12636] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12636] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12636] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12636] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12636] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12636] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12637]}, 88) = 12637
[pid 12636] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12636] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12636] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12637 attached
 <unfinished ...>
[pid 12637] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12637] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12637] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12637] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12636] <... futex resumed>)        = 0
[pid 12636] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12636] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12637] <... futex resumed>)        = 1
[pid 12637] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12637] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12636] <... futex resumed>)        = 0
[pid 12636] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12636] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12637] <... futex resumed>)        = 1
[pid 12637] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12637] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12636] <... futex resumed>)        = 0
[pid 12636] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12636] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12637] <... futex resumed>)        = 1
[pid 12637] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12637] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12636] <... futex resumed>)        = 0
[pid 12636] exit_group(0)               = ?
[pid 12637] <... futex resumed>)        = ?
[pid 12637] +++ exited with 0 +++
[pid 12636] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12636, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12638
./strace-static-x86_64: Process 12638 attached
[pid 12638] set_robust_list(0x5555874576a0, 24) = 0
[pid 12638] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12638] setpgid(0, 0)               = 0
[pid 12638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12638] write(3, "1000", 4)         = 4
[pid 12638] close(3)                    = 0
executing program
[pid 12638] write(1, "executing program\n", 18) = 18
[pid 12638] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12638] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12638] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12638] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12638] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12638] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12638] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12639 attached
 => {parent_tid=[12639]}, 88) = 12639
[pid 12638] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12638] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12638] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12639] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12639] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12639] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12639] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12638] <... futex resumed>)        = 0
[pid 12638] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12638] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12639] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12639] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12638] <... futex resumed>)        = 0
[pid 12638] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12638] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12639] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12639] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12638] <... futex resumed>)        = 0
[pid 12638] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12638] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12639] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12639] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12638] <... futex resumed>)        = 0
[pid 12638] exit_group(0)               = ?
[pid 12639] +++ exited with 0 +++
[pid 12638] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12638, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12640 attached
, child_tidptr=0x555587457690) = 12640
[pid 12640] set_robust_list(0x5555874576a0, 24) = 0
[pid 12640] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12640] setpgid(0, 0)               = 0
[pid 12640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12640] write(3, "1000", 4)         = 4
[pid 12640] close(3)                    = 0
[pid 12640] write(1, "executing program\n", 18executing program
) = 18
[pid 12640] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12640] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12640] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12640] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12640] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12640] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12640] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12641 attached
 => {parent_tid=[12641]}, 88) = 12641
[pid 12640] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12641] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12641] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12641] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12640] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12640] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12641] <... futex resumed>)        = 0
[pid 12641] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12640] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12641] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12641] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12640] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12640] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12641] <... futex resumed>)        = 0
[pid 12641] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12640] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12641] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12641] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12640] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12640] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12641] <... futex resumed>)        = 0
[pid 12641] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12640] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12641] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12641] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12640] <... futex resumed>)        = 0
[pid 12640] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12640] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12641] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12641] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12640] <... futex resumed>)        = 0
[pid 12640] exit_group(0)               = ?
[pid 12641] +++ exited with 0 +++
[pid 12640] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12640, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12642
./strace-static-x86_64: Process 12642 attached
[pid 12642] set_robust_list(0x5555874576a0, 24) = 0
[pid 12642] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12642] setpgid(0, 0)               = 0
[pid 12642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12642] write(3, "1000", 4)         = 4
[pid 12642] close(3executing program
)                    = 0
[pid 12642] write(1, "executing program\n", 18) = 18
[pid 12642] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12642] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12642] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12642] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12642] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12642] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12642] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12643 attached
 => {parent_tid=[12643]}, 88) = 12643
[pid 12642] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12642] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12643] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12642] <... futex resumed>)        = 0
[pid 12643] <... set_robust_list resumed>) = 0
[pid 12642] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12643] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12643] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12643] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12642] <... futex resumed>)        = 0
[pid 12642] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12642] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12643] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12643] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12642] <... futex resumed>)        = 0
[pid 12642] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12642] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12643] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12643] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12643] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12642] <... futex resumed>)        = 0
[pid 12642] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12642] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12643] <... futex resumed>)        = 0
[pid 12643] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12643] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12642] <... futex resumed>)        = 0
[pid 12642] exit_group(0)               = ?
[pid 12643] +++ exited with 0 +++
[pid 12642] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12642, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12644
./strace-static-x86_64: Process 12644 attached
[pid 12644] set_robust_list(0x5555874576a0, 24) = 0
[pid 12644] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12644] setpgid(0, 0)               = 0
[pid 12644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12644] write(3, "1000", 4)         = 4
[pid 12644] close(3)                    = 0
executing program
[pid 12644] write(1, "executing program\n", 18) = 18
[pid 12644] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12644] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12644] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12644] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12644] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12644] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12644] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12645]}, 88) = 12645
./strace-static-x86_64: Process 12645 attached
[pid 12644] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12644] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12644] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12645] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12645] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12645] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12645] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12644] <... futex resumed>)        = 0
[pid 12644] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12644] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12645] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12645] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12644] <... futex resumed>)        = 0
[pid 12644] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12644] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12645] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12645] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12644] <... futex resumed>)        = 0
[pid 12644] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12644] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12645] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12645] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12644] <... futex resumed>)        = 0
[pid 12644] exit_group(0)               = ?
[pid 12645] +++ exited with 0 +++
[pid 12644] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12644, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12646
./strace-static-x86_64: Process 12646 attached
[pid 12646] set_robust_list(0x5555874576a0, 24) = 0
[pid 12646] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12646] setpgid(0, 0)               = 0
[pid 12646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12646] write(3, "1000", 4)         = 4
[pid 12646] close(3)                    = 0
[pid 12646] write(1, "executing program\n", 18executing program
) = 18
[pid 12646] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12646] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12646] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12646] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12646] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12646] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12646] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12647]}, 88) = 12647
[pid 12646] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12646] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12646] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12647 attached
 <unfinished ...>
[pid 12647] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12647] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12647] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12647] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12646] <... futex resumed>)        = 0
[pid 12646] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12646] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12647] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12647] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12646] <... futex resumed>)        = 0
[pid 12646] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12646] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12647] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12647] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12646] <... futex resumed>)        = 0
[pid 12646] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12646] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12647] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12647] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12646] <... futex resumed>)        = 0
[pid 12646] exit_group(0)               = ?
[pid 12647] +++ exited with 0 +++
[pid 12646] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12646, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12648
./strace-static-x86_64: Process 12648 attached
[pid 12648] set_robust_list(0x5555874576a0, 24) = 0
[pid 12648] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12648] setpgid(0, 0)               = 0
[pid 12648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12648] write(3, "1000", 4)         = 4
[pid 12648] close(3)                    = 0
executing program
[pid 12648] write(1, "executing program\n", 18) = 18
[pid 12648] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12648] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12648] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12648] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12648] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12648] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12648] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12649]}, 88) = 12649
[pid 12648] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12648] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12648] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12649 attached
 <unfinished ...>
[pid 12649] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12649] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12649] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12649] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12648] <... futex resumed>)        = 0
[pid 12648] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12648] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12649] <... futex resumed>)        = 1
[pid 12649] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12649] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12648] <... futex resumed>)        = 0
[pid 12648] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12648] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12649] <... futex resumed>)        = 1
[pid 12649] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12649] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12648] <... futex resumed>)        = 0
[pid 12648] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12648] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12649] <... futex resumed>)        = 1
[pid 12649] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12649] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12648] <... futex resumed>)        = 0
[pid 12648] exit_group(0)               = ?
[pid 12649] <... futex resumed>)        = ?
[pid 12649] +++ exited with 0 +++
[pid 12648] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12648, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12650
./strace-static-x86_64: Process 12650 attached
[pid 12650] set_robust_list(0x5555874576a0, 24) = 0
[pid 12650] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12650] setpgid(0, 0)               = 0
[pid 12650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12650] write(3, "1000", 4)         = 4
[pid 12650] close(3)                    = 0
executing program
[pid 12650] write(1, "executing program\n", 18) = 18
[pid 12650] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12650] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12650] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12650] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12650] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12650] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12650] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12651]}, 88) = 12651
./strace-static-x86_64: Process 12651 attached
[pid 12650] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12650] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12650] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12651] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12651] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12651] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12651] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12650] <... futex resumed>)        = 0
[pid 12650] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12650] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12651] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12651] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12650] <... futex resumed>)        = 0
[pid 12650] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12650] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12651] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12651] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12650] <... futex resumed>)        = 0
[pid 12650] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12650] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12651] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12651] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12650] <... futex resumed>)        = 0
[pid 12650] exit_group(0)               = ?
[pid 12651] +++ exited with 0 +++
[pid 12650] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12650, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12652
./strace-static-x86_64: Process 12652 attached
[pid 12652] set_robust_list(0x5555874576a0, 24) = 0
[pid 12652] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12652] setpgid(0, 0)               = 0
[pid 12652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12652] write(3, "1000", 4executing program
)         = 4
[pid 12652] close(3)                    = 0
[pid 12652] write(1, "executing program\n", 18) = 18
[pid 12652] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12652] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12652] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12652] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12652] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12652] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12652] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12653]}, 88) = 12653
./strace-static-x86_64: Process 12653 attached
[pid 12652] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12652] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12652] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12653] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12653] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12653] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12653] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12652] <... futex resumed>)        = 0
[pid 12652] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12652] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12653] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12653] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12652] <... futex resumed>)        = 0
[pid 12652] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12652] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12653] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12653] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12652] <... futex resumed>)        = 0
[pid 12652] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12652] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12653] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12653] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12652] <... futex resumed>)        = 0
[pid 12652] exit_group(0)               = ?
[pid 12653] +++ exited with 0 +++
[pid 12652] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12652, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12654
./strace-static-x86_64: Process 12654 attached
[pid 12654] set_robust_list(0x5555874576a0, 24) = 0
[pid 12654] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12654] setpgid(0, 0)               = 0
[pid 12654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12654] write(3, "1000", 4)         = 4
[pid 12654] close(3executing program
)                    = 0
[pid 12654] write(1, "executing program\n", 18) = 18
[pid 12654] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12654] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12654] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12654] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12654] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12654] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12654] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12655 attached
 => {parent_tid=[12655]}, 88) = 12655
[pid 12654] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12654] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12654] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12655] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12655] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12655] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12655] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12654] <... futex resumed>)        = 0
[pid 12654] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12654] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12655] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12655] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12654] <... futex resumed>)        = 0
[pid 12655] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12654] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12655] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12654] <... futex resumed>)        = 0
[pid 12655] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12654] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12655] <... futex resumed>)        = 0
[pid 12654] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12655] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12654] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12655] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12654] <... futex resumed>)        = 0
[pid 12655] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12654] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12655] <... futex resumed>)        = 0
[pid 12654] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12655] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12654] exit_group(0 <unfinished ...>
[pid 12655] <... futex resumed>)        = ?
[pid 12654] <... exit_group resumed>)   = ?
[pid 12655] +++ exited with 0 +++
[pid 12654] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12654, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12656
./strace-static-x86_64: Process 12656 attached
[pid 12656] set_robust_list(0x5555874576a0, 24) = 0
[pid 12656] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12656] setpgid(0, 0)               = 0
[pid 12656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12656] write(3, "1000", 4)         = 4
[pid 12656] close(3)                    = 0
[pid 12656] write(1, "executing program\n", 18executing program
) = 18
[pid 12656] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12656] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12656] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12656] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12656] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12656] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12656] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12657]}, 88) = 12657
[pid 12656] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12656] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12656] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12657 attached
 <unfinished ...>
[pid 12657] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12657] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12657] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12657] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12656] <... futex resumed>)        = 0
[pid 12656] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12656] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12657] <... futex resumed>)        = 1
[pid 12657] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12657] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12656] <... futex resumed>)        = 0
[pid 12656] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12656] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12657] <... futex resumed>)        = 1
[pid 12657] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12657] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12656] <... futex resumed>)        = 0
[pid 12656] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12656] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12657] <... futex resumed>)        = 1
[pid 12657] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12657] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12656] <... futex resumed>)        = 0
[pid 12656] exit_group(0)               = ?
[pid 12657] <... futex resumed>)        = ?
[pid 12657] +++ exited with 0 +++
[pid 12656] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12656, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12658
./strace-static-x86_64: Process 12658 attached
[pid 12658] set_robust_list(0x5555874576a0, 24) = 0
[pid 12658] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12658] setpgid(0, 0)               = 0
[pid 12658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12658] write(3, "1000", 4)         = 4
[pid 12658] close(3)                    = 0
[pid 12658] write(1, "executing program\n", 18executing program
) = 18
[pid 12658] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12658] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12658] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12658] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12658] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12658] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12658] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12659]}, 88) = 12659
[pid 12658] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12658] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12658] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12659 attached
 <unfinished ...>
[pid 12659] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12659] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12659] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12659] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12658] <... futex resumed>)        = 0
[pid 12658] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12658] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12659] <... futex resumed>)        = 1
[pid 12659] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12659] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12658] <... futex resumed>)        = 0
[pid 12658] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12658] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12659] <... futex resumed>)        = 1
[pid 12659] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12659] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12658] <... futex resumed>)        = 0
[pid 12658] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12658] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12659] <... futex resumed>)        = 1
[pid 12659] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12659] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12658] <... futex resumed>)        = 0
[pid 12658] exit_group(0)               = ?
[pid 12659] <... futex resumed>)        = ?
[pid 12659] +++ exited with 0 +++
[pid 12658] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12658, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12660
./strace-static-x86_64: Process 12660 attached
[pid 12660] set_robust_list(0x5555874576a0, 24) = 0
[pid 12660] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12660] setpgid(0, 0)               = 0
[pid 12660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12660] write(3, "1000", 4)         = 4
[pid 12660] close(3)                    = 0
[pid 12660] write(1, "executing program\n", 18executing program
) = 18
[pid 12660] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12660] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12660] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12660] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12660] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12660] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12660] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12661 attached
 => {parent_tid=[12661]}, 88) = 12661
[pid 12661] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12661] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12661] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12660] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12660] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12661] <... futex resumed>)        = 0
[pid 12661] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12661] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12661] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12660] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12660] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12661] <... futex resumed>)        = 0
[pid 12661] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12660] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12661] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12661] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12660] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12660] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12661] <... futex resumed>)        = 0
[pid 12661] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12660] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12661] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12660] <... futex resumed>)        = 0
[pid 12660] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12660] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12661] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12661] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12660] <... futex resumed>)        = 0
[pid 12660] exit_group(0)               = ?
[pid 12661] +++ exited with 0 +++
[pid 12660] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12660, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12662
./strace-static-x86_64: Process 12662 attached
[pid 12662] set_robust_list(0x5555874576a0, 24) = 0
[pid 12662] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12662] setpgid(0, 0)               = 0
[pid 12662] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12662] write(3, "1000", 4)         = 4
[pid 12662] close(3)                    = 0
[pid 12662] write(1, "executing program\n", 18executing program
) = 18
[pid 12662] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12662] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12662] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12662] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12662] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12662] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12662] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12663 attached
 => {parent_tid=[12663]}, 88) = 12663
[pid 12663] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12662] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12662] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12662] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12663] <... set_robust_list resumed>) = 0
[pid 12663] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12663] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12663] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12662] <... futex resumed>)        = 0
[pid 12662] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12662] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12663] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12663] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12662] <... futex resumed>)        = 0
[pid 12662] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12662] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12663] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12663] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12662] <... futex resumed>)        = 0
[pid 12662] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12662] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12663] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12663] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12662] <... futex resumed>)        = 0
[pid 12662] exit_group(0)               = ?
[pid 12663] +++ exited with 0 +++
[pid 12662] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12662, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12664
./strace-static-x86_64: Process 12664 attached
[pid 12664] set_robust_list(0x5555874576a0, 24) = 0
[pid 12664] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12664] setpgid(0, 0)               = 0
[pid 12664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12664] write(3, "1000", 4)         = 4
[pid 12664] close(3)                    = 0
executing program
[pid 12664] write(1, "executing program\n", 18) = 18
[pid 12664] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12664] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12664] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12664] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12664] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12664] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12664] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12665]}, 88) = 12665
./strace-static-x86_64: Process 12665 attached
[pid 12665] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12665] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12665] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12664] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12664] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12665] <... futex resumed>)        = 0
[pid 12665] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12665] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12665] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12664] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12664] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12665] <... futex resumed>)        = 0
[pid 12665] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12665] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12665] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12664] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12664] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12665] <... futex resumed>)        = 0
[pid 12664] <... futex resumed>)        = 1
[pid 12665] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12665] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12665] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12664] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12664] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12665] <... futex resumed>)        = 0
[pid 12664] <... futex resumed>)        = 1
[pid 12665] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12665] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12665] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12664] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12664] exit_group(0 <unfinished ...>
[pid 12665] <... futex resumed>)        = ?
[pid 12664] <... exit_group resumed>)   = ?
[pid 12665] +++ exited with 0 +++
[pid 12664] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12664, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12666
./strace-static-x86_64: Process 12666 attached
[pid 12666] set_robust_list(0x5555874576a0, 24) = 0
[pid 12666] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12666] setpgid(0, 0)               = 0
[pid 12666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12666] write(3, "1000", 4executing program
)         = 4
[pid 12666] close(3)                    = 0
[pid 12666] write(1, "executing program\n", 18) = 18
[pid 12666] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12666] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12666] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12666] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12666] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12666] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12666] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12667 attached
 => {parent_tid=[12667]}, 88) = 12667
[pid 12667] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12666] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12667] <... set_robust_list resumed>) = 0
[pid 12666] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12667] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12666] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12667] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12666] <... futex resumed>)        = 0
[pid 12667] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12666] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12667] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12667] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12666] <... futex resumed>)        = 0
[pid 12667] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12666] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12667] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12666] <... futex resumed>)        = 0
[pid 12667] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12666] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12667] <... futex resumed>)        = 0
[pid 12666] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12667] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12666] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12667] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12666] <... futex resumed>)        = 0
[pid 12667] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12666] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12667] <... futex resumed>)        = 0
[pid 12666] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12667] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12666] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12667] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12666] <... futex resumed>)        = 0
[pid 12667] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12666] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12667] <... futex resumed>)        = 0
[pid 12666] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12667] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12666] exit_group(0 <unfinished ...>
[pid 12667] <... futex resumed>)        = ?
[pid 12666] <... exit_group resumed>)   = ?
[pid 12667] +++ exited with 0 +++
[pid 12666] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12666, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12668
./strace-static-x86_64: Process 12668 attached
[pid 12668] set_robust_list(0x5555874576a0, 24) = 0
[pid 12668] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12668] setpgid(0, 0)               = 0
[pid 12668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12668] write(3, "1000", 4executing program
)         = 4
[pid 12668] close(3)                    = 0
[pid 12668] write(1, "executing program\n", 18) = 18
[pid 12668] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12668] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12668] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12668] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12668] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12668] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12668] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12669 attached
 => {parent_tid=[12669]}, 88) = 12669
[pid 12669] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12668] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12668] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12668] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12669] <... set_robust_list resumed>) = 0
[pid 12669] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12669] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12669] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12668] <... futex resumed>)        = 0
[pid 12668] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12669] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12668] <... futex resumed>)        = 0
[pid 12668] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12669] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12669] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12668] <... futex resumed>)        = 0
[pid 12668] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12668] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12669] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12669] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12668] <... futex resumed>)        = 0
[pid 12668] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12668] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12669] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12669] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12668] <... futex resumed>)        = 0
[pid 12668] exit_group(0)               = ?
[pid 12669] +++ exited with 0 +++
[pid 12668] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12668, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12670
./strace-static-x86_64: Process 12670 attached
[pid 12670] set_robust_list(0x5555874576a0, 24) = 0
[pid 12670] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12670] setpgid(0, 0)               = 0
[pid 12670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12670] write(3, "1000", 4)         = 4
[pid 12670] close(3executing program
)                    = 0
[pid 12670] write(1, "executing program\n", 18) = 18
[pid 12670] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12670] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12670] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12670] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12670] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12670] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12670] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12671]}, 88) = 12671
[pid 12670] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12670] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12670] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12671 attached
 <unfinished ...>
[pid 12671] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12671] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12671] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12671] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12670] <... futex resumed>)        = 0
[pid 12671] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12670] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12671] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12670] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12671] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12670] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12671] <... futex resumed>)        = 0
[pid 12670] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12671] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12670] <... futex resumed>)        = 0
[pid 12671] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12670] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12671] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12670] <... futex resumed>)        = 0
[pid 12670] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12670] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12671] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12671] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12670] <... futex resumed>)        = 0
[pid 12670] exit_group(0)               = ?
[pid 12671] +++ exited with 0 +++
[pid 12670] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12670, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12672
./strace-static-x86_64: Process 12672 attached
[pid 12672] set_robust_list(0x5555874576a0, 24) = 0
[pid 12672] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12672] setpgid(0, 0)               = 0
[pid 12672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12672] write(3, "1000", 4executing program
)         = 4
[pid 12672] close(3)                    = 0
[pid 12672] write(1, "executing program\n", 18) = 18
[pid 12672] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12672] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12672] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12672] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12672] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12672] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12672] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12673 attached
 => {parent_tid=[12673]}, 88) = 12673
[pid 12672] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12672] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12673] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12672] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12673] <... set_robust_list resumed>) = 0
[pid 12673] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12673] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12673] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12672] <... futex resumed>)        = 0
[pid 12672] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12672] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12673] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12673] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12672] <... futex resumed>)        = 0
[pid 12672] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12672] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12673] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12673] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12672] <... futex resumed>)        = 0
[pid 12672] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12672] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12673] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12673] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12672] <... futex resumed>)        = 0
[pid 12672] exit_group(0)               = ?
[pid 12673] +++ exited with 0 +++
[pid 12672] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12672, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12674
./strace-static-x86_64: Process 12674 attached
[pid 12674] set_robust_list(0x5555874576a0, 24) = 0
[pid 12674] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12674] setpgid(0, 0)               = 0
[pid 12674] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12674] write(3, "1000", 4)         = 4
[pid 12674] close(3)                    = 0
[pid 12674] write(1, "executing program\n", 18executing program
) = 18
[pid 12674] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12674] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12674] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12674] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12674] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12674] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12674] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12675 attached
 => {parent_tid=[12675]}, 88) = 12675
[pid 12675] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12674] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12675] <... set_robust_list resumed>) = 0
[pid 12674] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12674] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12674] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12675] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12675] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12675] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12674] <... futex resumed>)        = 0
[pid 12674] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12674] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12675] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12675] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12674] <... futex resumed>)        = 0
[pid 12674] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12674] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12675] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12675] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12674] <... futex resumed>)        = 0
[pid 12674] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12674] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12675] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12675] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12674] <... futex resumed>)        = 0
[pid 12674] exit_group(0)               = ?
[pid 12675] +++ exited with 0 +++
[pid 12674] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12674, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12676
./strace-static-x86_64: Process 12676 attached
[pid 12676] set_robust_list(0x5555874576a0, 24) = 0
[pid 12676] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12676] setpgid(0, 0)               = 0
[pid 12676] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12676] write(3, "1000", 4)         = 4
[pid 12676] close(3)                    = 0
executing program
[pid 12676] write(1, "executing program\n", 18) = 18
[pid 12676] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12676] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12676] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12676] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12676] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12676] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12676] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12677]}, 88) = 12677
./strace-static-x86_64: Process 12677 attached
[pid 12676] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12676] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12676] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12677] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12677] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12677] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12677] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12676] <... futex resumed>)        = 0
[pid 12676] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12676] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12677] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12677] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12676] <... futex resumed>)        = 0
[pid 12676] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12676] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12677] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12677] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12676] <... futex resumed>)        = 0
[pid 12676] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12676] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12677] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12677] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12676] <... futex resumed>)        = 0
[pid 12676] exit_group(0)               = ?
[pid 12677] +++ exited with 0 +++
[pid 12676] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12676, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12678
./strace-static-x86_64: Process 12678 attached
[pid 12678] set_robust_list(0x5555874576a0, 24) = 0
[pid 12678] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12678] setpgid(0, 0)               = 0
[pid 12678] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12678] write(3, "1000", 4)         = 4
executing program
[pid 12678] close(3)                    = 0
[pid 12678] write(1, "executing program\n", 18) = 18
[pid 12678] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12678] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12678] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12678] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12678] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12678] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12678] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12679 attached
 => {parent_tid=[12679]}, 88) = 12679
[pid 12678] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12678] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12678] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12679] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12679] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12679] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12679] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12678] <... futex resumed>)        = 0
[pid 12679] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12678] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12679] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12678] <... futex resumed>)        = 0
[pid 12679] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12678] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12679] <... futex resumed>)        = 0
[pid 12678] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12679] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12678] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12679] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12678] <... futex resumed>)        = 0
[pid 12679] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12678] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12679] <... futex resumed>)        = 0
[pid 12678] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12678] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12679] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12678] <... futex resumed>)        = 0
[pid 12679] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12678] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12679] <... futex resumed>)        = 0
[pid 12678] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12679] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12678] exit_group(0 <unfinished ...>
[pid 12679] <... futex resumed>)        = ?
[pid 12678] <... exit_group resumed>)   = ?
[pid 12679] +++ exited with 0 +++
[pid 12678] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12678, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12680
./strace-static-x86_64: Process 12680 attached
[pid 12680] set_robust_list(0x5555874576a0, 24) = 0
[pid 12680] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12680] setpgid(0, 0)               = 0
[pid 12680] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12680] write(3, "1000", 4)         = 4
[pid 12680] close(3)                    = 0
executing program
[pid 12680] write(1, "executing program\n", 18) = 18
[pid 12680] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12680] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12680] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12680] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12680] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12680] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12680] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12681]}, 88) = 12681
[pid 12680] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12680] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
./strace-static-x86_64: Process 12681 attached
[pid 12680] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12681] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12681] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12681] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12681] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12680] <... futex resumed>)        = 0
[pid 12681] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12680] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12681] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12680] <... futex resumed>)        = 0
[pid 12681] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12680] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12681] <... futex resumed>)        = 0
[pid 12680] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12681] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12680] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12681] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12680] <... futex resumed>)        = 0
[pid 12681] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12680] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12681] <... futex resumed>)        = 0
[pid 12680] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12681] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12680] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12681] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12680] <... futex resumed>)        = 0
[pid 12681] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12680] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12681] <... futex resumed>)        = 0
[pid 12680] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12681] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12680] exit_group(0 <unfinished ...>
[pid 12681] <... futex resumed>)        = ?
[pid 12680] <... exit_group resumed>)   = ?
[pid 12681] +++ exited with 0 +++
[pid 12680] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12680, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12682
./strace-static-x86_64: Process 12682 attached
[pid 12682] set_robust_list(0x5555874576a0, 24) = 0
[pid 12682] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12682] setpgid(0, 0)               = 0
[pid 12682] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12682] write(3, "1000", 4)         = 4
[pid 12682] close(3)                    = 0
[pid 12682] write(1, "executing program\n", 18executing program
) = 18
[pid 12682] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12682] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12682] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12682] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12682] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12682] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12682] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12683 attached
 => {parent_tid=[12683]}, 88) = 12683
[pid 12683] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12683] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12683] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12682] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12682] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12683] <... futex resumed>)        = 0
[pid 12682] <... futex resumed>)        = 1
[pid 12683] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12683] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12683] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12682] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12682] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12683] <... futex resumed>)        = 0
[pid 12682] <... futex resumed>)        = 1
[pid 12683] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12682] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12683] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12683] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12682] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12682] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12683] <... futex resumed>)        = 0
[pid 12682] <... futex resumed>)        = 1
[pid 12683] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12683] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12683] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12682] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12682] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12683] <... futex resumed>)        = 0
[pid 12682] <... futex resumed>)        = 1
[pid 12683] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12683] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12683] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12682] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12682] exit_group(0 <unfinished ...>
[pid 12683] <... futex resumed>)        = ?
[pid 12682] <... exit_group resumed>)   = ?
[pid 12683] +++ exited with 0 +++
[pid 12682] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12682, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12684
./strace-static-x86_64: Process 12684 attached
[pid 12684] set_robust_list(0x5555874576a0, 24) = 0
[pid 12684] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12684] setpgid(0, 0)               = 0
[pid 12684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12684] write(3, "1000", 4)         = 4
[pid 12684] close(3)                    = 0
[pid 12684] write(1, "executing program\n", 18executing program
) = 18
[pid 12684] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12684] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12684] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12684] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12684] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12684] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12684] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12685 attached
 => {parent_tid=[12685]}, 88) = 12685
[pid 12685] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12685] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12685] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12684] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12684] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12685] <... futex resumed>)        = 0
[pid 12685] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12685] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12685] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12684] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12684] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12685] <... futex resumed>)        = 0
[pid 12685] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12684] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12685] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12684] <... futex resumed>)        = 0
[pid 12684] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12684] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12685] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12685] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12684] <... futex resumed>)        = 0
[pid 12684] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12684] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12685] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12685] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12684] <... futex resumed>)        = 0
[pid 12684] exit_group(0)               = ?
[pid 12685] +++ exited with 0 +++
[pid 12684] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12684, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12686
./strace-static-x86_64: Process 12686 attached
[pid 12686] set_robust_list(0x5555874576a0, 24) = 0
[pid 12686] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12686] setpgid(0, 0)               = 0
[pid 12686] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12686] write(3, "1000", 4)         = 4
[pid 12686] close(3)                    = 0
[pid 12686] write(1, "executing program\n", 18executing program
) = 18
[pid 12686] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12686] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12686] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12686] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12686] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12686] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12686] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12687 attached
 <unfinished ...>
[pid 12687] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12687] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12687] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12686] <... clone3 resumed> => {parent_tid=[12687]}, 88) = 12687
[pid 12686] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12686] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12687] <... futex resumed>)        = 0
[pid 12687] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12686] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12687] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12687] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12686] <... futex resumed>)        = 0
[pid 12686] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12686] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12687] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12687] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12686] <... futex resumed>)        = 0
[pid 12686] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12686] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12687] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12687] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12686] <... futex resumed>)        = 0
[pid 12686] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12686] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12687] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12687] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12686] <... futex resumed>)        = 0
[pid 12687] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12686] exit_group(0)               = ?
[pid 12687] <... futex resumed>)        = ?
[pid 12687] +++ exited with 0 +++
[pid 12686] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12686, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12688
./strace-static-x86_64: Process 12688 attached
[pid 12688] set_robust_list(0x5555874576a0, 24) = 0
[pid 12688] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12688] setpgid(0, 0)               = 0
[pid 12688] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12688] write(3, "1000", 4)         = 4
[pid 12688] close(3)                    = 0
executing program
[pid 12688] write(1, "executing program\n", 18) = 18
[pid 12688] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12688] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12688] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12688] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12688] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12688] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12688] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12689 attached
 => {parent_tid=[12689]}, 88) = 12689
[pid 12689] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12688] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12688] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12688] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12689] <... set_robust_list resumed>) = 0
[pid 12689] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12689] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12689] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12688] <... futex resumed>)        = 0
[pid 12688] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12688] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12689] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12689] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12688] <... futex resumed>)        = 0
[pid 12688] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12688] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12689] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12689] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12688] <... futex resumed>)        = 0
[pid 12688] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12688] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12689] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12689] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12688] <... futex resumed>)        = 0
[pid 12688] exit_group(0)               = ?
[pid 12689] +++ exited with 0 +++
[pid 12688] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12688, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12690
./strace-static-x86_64: Process 12690 attached
[pid 12690] set_robust_list(0x5555874576a0, 24) = 0
[pid 12690] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12690] setpgid(0, 0)               = 0
[pid 12690] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12690] write(3, "1000", 4)         = 4
[pid 12690] close(3)                    = 0
executing program
[pid 12690] write(1, "executing program\n", 18) = 18
[pid 12690] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12690] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12690] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12690] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12690] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12690] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12690] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12691]}, 88) = 12691
[pid 12690] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12690] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12690] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12691 attached
 <unfinished ...>
[pid 12691] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12691] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12691] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12691] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12690] <... futex resumed>)        = 0
[pid 12690] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12690] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12691] <... futex resumed>)        = 1
[pid 12691] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12691] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12690] <... futex resumed>)        = 0
[pid 12690] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12690] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12691] <... futex resumed>)        = 1
[pid 12691] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12691] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12690] <... futex resumed>)        = 0
[pid 12690] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12690] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12691] <... futex resumed>)        = 1
[pid 12691] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12691] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12690] <... futex resumed>)        = 0
[pid 12690] exit_group(0)               = ?
[pid 12691] <... futex resumed>)        = ?
[pid 12691] +++ exited with 0 +++
[pid 12690] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12690, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12692
./strace-static-x86_64: Process 12692 attached
[pid 12692] set_robust_list(0x5555874576a0, 24) = 0
[pid 12692] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12692] setpgid(0, 0)               = 0
[pid 12692] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12692] write(3, "1000", 4)         = 4
[pid 12692] close(3)                    = 0
executing program
[pid 12692] write(1, "executing program\n", 18) = 18
[pid 12692] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12692] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12692] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12692] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12692] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12692] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12692] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12693]}, 88) = 12693
[pid 12692] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12692] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12692] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12693 attached
 <unfinished ...>
[pid 12693] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12693] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12693] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12693] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12692] <... futex resumed>)        = 0
[pid 12692] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12692] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12693] <... futex resumed>)        = 1
[pid 12693] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12693] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12692] <... futex resumed>)        = 0
[pid 12692] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12692] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12693] <... futex resumed>)        = 1
[pid 12693] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12693] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12692] <... futex resumed>)        = 0
[pid 12692] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12692] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12693] <... futex resumed>)        = 1
[pid 12693] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12693] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12692] <... futex resumed>)        = 0
[pid 12692] exit_group(0)               = ?
[pid 12693] <... futex resumed>)        = ?
[pid 12693] +++ exited with 0 +++
[pid 12692] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12692, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12694
./strace-static-x86_64: Process 12694 attached
[pid 12694] set_robust_list(0x5555874576a0, 24) = 0
[pid 12694] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12694] setpgid(0, 0)               = 0
[pid 12694] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12694] write(3, "1000", 4)         = 4
executing program
[pid 12694] close(3)                    = 0
[pid 12694] write(1, "executing program\n", 18) = 18
[pid 12694] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12694] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12694] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12694] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12694] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12694] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12694] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12695]}, 88) = 12695
[pid 12694] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12694] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12694] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12695 attached
 <unfinished ...>
[pid 12695] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12695] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12695] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12695] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12694] <... futex resumed>)        = 0
[pid 12694] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12694] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12695] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12695] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12694] <... futex resumed>)        = 0
[pid 12694] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12694] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12695] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12695] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12694] <... futex resumed>)        = 0
[pid 12694] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12694] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12695] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12695] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12694] <... futex resumed>)        = 0
[pid 12694] exit_group(0)               = ?
[pid 12695] +++ exited with 0 +++
[pid 12694] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12694, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12696
./strace-static-x86_64: Process 12696 attached
[pid 12696] set_robust_list(0x5555874576a0, 24) = 0
[pid 12696] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12696] setpgid(0, 0)               = 0
[pid 12696] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12696] write(3, "1000", 4)         = 4
[pid 12696] close(3)                    = 0
executing program
[pid 12696] write(1, "executing program\n", 18) = 18
[pid 12696] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12696] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12696] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12696] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12696] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12696] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12696] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12697]}, 88) = 12697
./strace-static-x86_64: Process 12697 attached
[pid 12696] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12696] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12696] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12697] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12697] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12697] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12697] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12696] <... futex resumed>)        = 0
[pid 12696] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12696] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12697] <... futex resumed>)        = 1
[pid 12697] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12697] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12696] <... futex resumed>)        = 0
[pid 12696] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12696] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12697] <... futex resumed>)        = 1
[pid 12697] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12697] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12696] <... futex resumed>)        = 0
[pid 12696] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12696] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12697] <... futex resumed>)        = 1
[pid 12697] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12697] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12696] <... futex resumed>)        = 0
[pid 12697] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12696] exit_group(0 <unfinished ...>
[pid 12697] <... futex resumed>)        = ?
[pid 12696] <... exit_group resumed>)   = ?
[pid 12697] +++ exited with 0 +++
[pid 12696] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12696, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12698
./strace-static-x86_64: Process 12698 attached
[pid 12698] set_robust_list(0x5555874576a0, 24) = 0
[pid 12698] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12698] setpgid(0, 0)               = 0
[pid 12698] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12698] write(3, "1000", 4)         = 4
[pid 12698] close(3)                    = 0
[pid 12698] write(1, "executing program\n", 18executing program
) = 18
[pid 12698] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12698] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12698] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12698] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12698] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12698] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12698] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12699 attached
 => {parent_tid=[12699]}, 88) = 12699
[pid 12698] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12699] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12698] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12698] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12699] <... set_robust_list resumed>) = 0
[pid 12699] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12699] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12698] <... futex resumed>)        = 0
[pid 12699] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12699] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12699] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12698] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12698] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12698] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12699] <... futex resumed>)        = 0
[pid 12699] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12699] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12698] <... futex resumed>)        = 0
[pid 12698] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12698] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12699] <... futex resumed>)        = 1
[pid 12699] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12699] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12698] <... futex resumed>)        = 0
[pid 12698] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12698] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12699] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12699] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12698] <... futex resumed>)        = 0
[pid 12698] exit_group(0)               = ?
[pid 12699] <... futex resumed>)        = ?
[pid 12699] +++ exited with 0 +++
[pid 12698] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12698, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12700
./strace-static-x86_64: Process 12700 attached
[pid 12700] set_robust_list(0x5555874576a0, 24) = 0
[pid 12700] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12700] setpgid(0, 0)               = 0
[pid 12700] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12700] write(3, "1000", 4)         = 4
[pid 12700] close(3executing program
)                    = 0
[pid 12700] write(1, "executing program\n", 18) = 18
[pid 12700] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12700] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12700] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12700] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12700] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12700] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12700] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12701 attached
 => {parent_tid=[12701]}, 88) = 12701
[pid 12700] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12700] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12700] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12701] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12701] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12701] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12701] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12700] <... futex resumed>)        = 0
[pid 12700] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12700] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12701] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12701] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12700] <... futex resumed>)        = 0
[pid 12700] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12700] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12701] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12701] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12700] <... futex resumed>)        = 0
[pid 12700] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12700] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12701] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12701] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12700] <... futex resumed>)        = 0
[pid 12700] exit_group(0)               = ?
[pid 12701] +++ exited with 0 +++
[pid 12700] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12700, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12702 attached
, child_tidptr=0x555587457690) = 12702
[pid 12702] set_robust_list(0x5555874576a0, 24) = 0
[pid 12702] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12702] setpgid(0, 0)               = 0
[pid 12702] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12702] write(3, "1000", 4)         = 4
[pid 12702] close(3)                    = 0
[pid 12702] write(1, "executing program\n", 18executing program
) = 18
[pid 12702] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12702] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12702] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12702] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12702] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12702] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12702] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12703]}, 88) = 12703
./strace-static-x86_64: Process 12703 attached
[pid 12703] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12702] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12703] <... set_robust_list resumed>) = 0
[pid 12702] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12703] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12702] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12703] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12702] <... futex resumed>)        = 0
[pid 12703] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12702] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12703] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12703] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12702] <... futex resumed>)        = 0
[pid 12703] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12702] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12703] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12702] <... futex resumed>)        = 0
[pid 12703] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12702] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12703] <... futex resumed>)        = 0
[pid 12702] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12703] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12702] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12703] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12702] <... futex resumed>)        = 0
[pid 12703] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12702] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12703] <... futex resumed>)        = 0
[pid 12702] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12703] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12702] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12703] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12702] <... futex resumed>)        = 0
[pid 12703] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12702] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12703] <... futex resumed>)        = 0
[pid 12702] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12703] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12702] exit_group(0 <unfinished ...>
[pid 12703] <... futex resumed>)        = ?
[pid 12702] <... exit_group resumed>)   = ?
[pid 12703] +++ exited with 0 +++
[pid 12702] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12702, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12704
./strace-static-x86_64: Process 12704 attached
[pid 12704] set_robust_list(0x5555874576a0, 24) = 0
[pid 12704] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12704] setpgid(0, 0)               = 0
[pid 12704] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12704] write(3, "1000", 4)         = 4
[pid 12704] close(3)                    = 0
executing program
[pid 12704] write(1, "executing program\n", 18) = 18
[pid 12704] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12704] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12704] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12704] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12704] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12704] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12704] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12705]}, 88) = 12705
./strace-static-x86_64: Process 12705 attached
[pid 12705] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12705] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12705] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12704] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12704] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12705] <... futex resumed>)        = 0
[pid 12704] <... futex resumed>)        = 1
[pid 12705] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12705] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12705] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12704] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12704] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12705] <... futex resumed>)        = 0
[pid 12704] <... futex resumed>)        = 1
[pid 12705] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12705] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12704] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12705] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12704] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12704] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12705] <... futex resumed>)        = 0
[pid 12704] <... futex resumed>)        = 1
[pid 12705] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12705] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12705] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12704] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12704] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12705] <... futex resumed>)        = 0
[pid 12704] <... futex resumed>)        = 1
[pid 12705] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12704] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12705] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12705] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12705] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12704] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12704] exit_group(0 <unfinished ...>
[pid 12705] <... futex resumed>)        = ?
[pid 12704] <... exit_group resumed>)   = ?
[pid 12705] +++ exited with 0 +++
[pid 12704] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12704, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12706 attached
, child_tidptr=0x555587457690) = 12706
[pid 12706] set_robust_list(0x5555874576a0, 24) = 0
[pid 12706] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12706] setpgid(0, 0)               = 0
[pid 12706] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12706] write(3, "1000", 4)         = 4
[pid 12706] close(3)                    = 0
[pid 12706] write(1, "executing program\n", 18executing program
) = 18
[pid 12706] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12706] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12706] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12706] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12706] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12706] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12706] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12707 attached
 => {parent_tid=[12707]}, 88) = 12707
[pid 12706] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12707] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12706] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12706] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12707] <... set_robust_list resumed>) = 0
[pid 12707] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12707] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12707] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12706] <... futex resumed>)        = 0
[pid 12706] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12706] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12707] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12707] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12706] <... futex resumed>)        = 0
[pid 12706] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12706] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12707] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12707] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12706] <... futex resumed>)        = 0
[pid 12706] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12706] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12707] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12707] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12706] <... futex resumed>)        = 0
[pid 12707] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12706] exit_group(0)               = ?
[pid 12707] <... futex resumed>)        = ?
[pid 12707] +++ exited with 0 +++
[pid 12706] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12706, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12708
./strace-static-x86_64: Process 12708 attached
[pid 12708] set_robust_list(0x5555874576a0, 24) = 0
[pid 12708] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12708] setpgid(0, 0)               = 0
[pid 12708] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12708] write(3, "1000", 4)         = 4
executing program
[pid 12708] close(3)                    = 0
[pid 12708] write(1, "executing program\n", 18) = 18
[pid 12708] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12708] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12708] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12708] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12708] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12708] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12708] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12709 attached
 => {parent_tid=[12709]}, 88) = 12709
[pid 12709] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12708] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12709] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12708] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12708] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12708] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12709] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12709] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12709] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12708] <... futex resumed>)        = 0
[pid 12709] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12708] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12709] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12708] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12709] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12708] <... futex resumed>)        = 0
[pid 12709] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12708] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12709] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12708] <... futex resumed>)        = 0
[pid 12709] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12708] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12709] <... futex resumed>)        = 0
[pid 12708] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12709] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12708] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12709] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12709] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12708] <... futex resumed>)        = 0
[pid 12708] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12708] exit_group(0 <unfinished ...>
[pid 12709] <... futex resumed>)        = ?
[pid 12708] <... exit_group resumed>)   = ?
[pid 12709] +++ exited with 0 +++
[pid 12708] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12708, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12710
./strace-static-x86_64: Process 12710 attached
[pid 12710] set_robust_list(0x5555874576a0, 24) = 0
[pid 12710] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12710] setpgid(0, 0)               = 0
[pid 12710] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12710] write(3, "1000", 4)         = 4
[pid 12710] close(3)                    = 0
[pid 12710] write(1, "executing program\n", 18executing program
) = 18
[pid 12710] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12710] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12710] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12710] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12710] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12710] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12710] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12711 attached
 => {parent_tid=[12711]}, 88) = 12711
[pid 12711] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12711] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12711] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12710] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12710] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12711] <... futex resumed>)        = 0
[pid 12711] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12711] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12711] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12710] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12710] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12711] <... futex resumed>)        = 0
[pid 12711] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12711] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12711] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12710] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12710] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12711] <... futex resumed>)        = 0
[pid 12711] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12711] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12711] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12710] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12710] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12711] <... futex resumed>)        = 0
[pid 12711] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12711] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12711] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12710] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12710] exit_group(0)               = ?
[pid 12711] <... futex resumed>)        = ?
[pid 12711] +++ exited with 0 +++
[pid 12710] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12710, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12712
./strace-static-x86_64: Process 12712 attached
[pid 12712] set_robust_list(0x5555874576a0, 24) = 0
[pid 12712] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12712] setpgid(0, 0)               = 0
[pid 12712] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12712] write(3, "1000", 4)         = 4
[pid 12712] close(3)                    = 0
executing program
[pid 12712] write(1, "executing program\n", 18) = 18
[pid 12712] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12712] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12712] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12712] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12712] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12712] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12712] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12713]}, 88) = 12713
./strace-static-x86_64: Process 12713 attached
[pid 12713] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12713] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12713] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12712] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12712] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12713] <... futex resumed>)        = 0
[pid 12713] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12712] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12713] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12713] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12712] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12713] <... futex resumed>)        = 0
[pid 12712] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12713] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12712] <... futex resumed>)        = 0
[pid 12713] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12712] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12713] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12712] <... futex resumed>)        = 0
[pid 12712] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12712] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12713] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12713] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12712] <... futex resumed>)        = 0
[pid 12712] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12712] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12713] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12713] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12712] <... futex resumed>)        = 0
[pid 12712] exit_group(0)               = ?
[pid 12713] +++ exited with 0 +++
[pid 12712] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12712, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12714
./strace-static-x86_64: Process 12714 attached
[pid 12714] set_robust_list(0x5555874576a0, 24) = 0
[pid 12714] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12714] setpgid(0, 0)               = 0
[pid 12714] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12714] write(3, "1000", 4)         = 4
[pid 12714] close(3)                    = 0
executing program
[pid 12714] write(1, "executing program\n", 18) = 18
[pid 12714] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12714] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12714] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12714] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12714] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12714] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12714] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12715 attached
 <unfinished ...>
[pid 12715] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12715] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12715] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12714] <... clone3 resumed> => {parent_tid=[12715]}, 88) = 12715
[pid 12714] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12714] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12715] <... futex resumed>)        = 0
[pid 12715] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12715] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12715] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12714] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12714] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12715] <... futex resumed>)        = 0
[pid 12715] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12715] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12715] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12714] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12714] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12715] <... futex resumed>)        = 0
[pid 12715] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12715] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12715] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12714] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12714] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12715] <... futex resumed>)        = 0
[pid 12715] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12714] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12715] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12715] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12715] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12714] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12714] exit_group(0)               = ?
[pid 12715] <... futex resumed>)        = ?
[pid 12715] +++ exited with 0 +++
[pid 12714] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12714, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12716
./strace-static-x86_64: Process 12716 attached
[pid 12716] set_robust_list(0x5555874576a0, 24) = 0
[pid 12716] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12716] setpgid(0, 0)               = 0
[pid 12716] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12716] write(3, "1000", 4)         = 4
[pid 12716] close(3)                    = 0
executing program
[pid 12716] write(1, "executing program\n", 18) = 18
[pid 12716] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12716] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12716] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12716] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12716] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12716] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12716] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12717 attached
 => {parent_tid=[12717]}, 88) = 12717
[pid 12717] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12716] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12717] <... set_robust_list resumed>) = 0
[pid 12716] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12717] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12716] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12717] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12716] <... futex resumed>)        = 0
[pid 12717] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12716] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12717] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12717] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12716] <... futex resumed>)        = 0
[pid 12716] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12716] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12717] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12717] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12716] <... futex resumed>)        = 0
[pid 12716] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12716] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12717] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12717] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12716] <... futex resumed>)        = 0
[pid 12716] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12716] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12717] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12717] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12717] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12716] <... futex resumed>)        = 0
[pid 12716] exit_group(0)               = ?
[pid 12717] <... futex resumed>)        = ?
[pid 12717] +++ exited with 0 +++
[pid 12716] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12716, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12718
./strace-static-x86_64: Process 12718 attached
[pid 12718] set_robust_list(0x5555874576a0, 24) = 0
[pid 12718] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12718] setpgid(0, 0)               = 0
[pid 12718] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12718] write(3, "1000", 4)         = 4
[pid 12718] close(3)                    = 0
[pid 12718] write(1, "executing program\n", 18executing program
) = 18
[pid 12718] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12718] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12718] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12718] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12718] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12718] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12718] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12719]}, 88) = 12719
./strace-static-x86_64: Process 12719 attached
[pid 12718] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12719] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12718] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12719] <... set_robust_list resumed>) = 0
[pid 12718] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12719] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12718] <... futex resumed>)        = 0
[pid 12719] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12718] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12719] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12719] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12718] <... futex resumed>)        = 0
[pid 12718] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12718] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12719] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12719] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12718] <... futex resumed>)        = 0
[pid 12718] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12718] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12719] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12719] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12718] <... futex resumed>)        = 0
[pid 12718] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12718] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12719] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12719] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12718] <... futex resumed>)        = 0
[pid 12719] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12718] exit_group(0)               = ?
[pid 12719] <... futex resumed>)        = ?
[pid 12719] +++ exited with 0 +++
[pid 12718] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12718, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12720
./strace-static-x86_64: Process 12720 attached
[pid 12720] set_robust_list(0x5555874576a0, 24) = 0
[pid 12720] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12720] setpgid(0, 0)               = 0
[pid 12720] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12720] write(3, "1000", 4)         = 4
[pid 12720] close(3)                    = 0
executing program
[pid 12720] write(1, "executing program\n", 18) = 18
[pid 12720] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12720] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12720] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12720] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12720] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12720] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12720] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12721]}, 88) = 12721
[pid 12720] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12720] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12720] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12721 attached
 <unfinished ...>
[pid 12721] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12721] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12721] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12721] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12720] <... futex resumed>)        = 0
[pid 12721] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12720] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12721] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12720] <... futex resumed>)        = 0
[pid 12721] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12720] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12721] <... futex resumed>)        = 0
[pid 12720] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12721] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12720] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12721] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12720] <... futex resumed>)        = 0
[pid 12721] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12720] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12721] <... futex resumed>)        = 0
[pid 12720] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12721] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12720] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12721] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12720] <... futex resumed>)        = 0
[pid 12721] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12720] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12721] <... futex resumed>)        = 0
[pid 12720] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12721] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12720] exit_group(0 <unfinished ...>
[pid 12721] <... futex resumed>)        = ?
[pid 12720] <... exit_group resumed>)   = ?
[pid 12721] +++ exited with 0 +++
[pid 12720] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12720, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12722
./strace-static-x86_64: Process 12722 attached
[pid 12722] set_robust_list(0x5555874576a0, 24) = 0
[pid 12722] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12722] setpgid(0, 0)               = 0
[pid 12722] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12722] write(3, "1000", 4)         = 4
[pid 12722] close(3)                    = 0
executing program
[pid 12722] write(1, "executing program\n", 18) = 18
[pid 12722] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12722] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12722] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12722] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12722] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12722] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12722] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12723 attached
 => {parent_tid=[12723]}, 88) = 12723
[pid 12722] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12722] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12722] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12723] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12723] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12723] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12723] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12722] <... futex resumed>)        = 0
[pid 12722] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12722] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12723] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12723] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12722] <... futex resumed>)        = 0
[pid 12722] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12722] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12723] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12723] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12722] <... futex resumed>)        = 0
[pid 12722] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12722] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12723] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12723] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12722] <... futex resumed>)        = 0
[pid 12722] exit_group(0)               = ?
[pid 12723] +++ exited with 0 +++
[pid 12722] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12722, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12724 attached
, child_tidptr=0x555587457690) = 12724
[pid 12724] set_robust_list(0x5555874576a0, 24) = 0
[pid 12724] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12724] setpgid(0, 0)               = 0
[pid 12724] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12724] write(3, "1000", 4)         = 4
[pid 12724] close(3)                    = 0
[pid 12724] write(1, "executing program\n", 18executing program
) = 18
[pid 12724] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12724] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12724] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12724] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12724] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12724] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12724] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12725 attached
 <unfinished ...>
[pid 12725] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12724] <... clone3 resumed> => {parent_tid=[12725]}, 88) = 12725
[pid 12724] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12724] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12724] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12725] <... set_robust_list resumed>) = 0
[pid 12725] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12725] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12725] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12724] <... futex resumed>)        = 0
[pid 12724] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12724] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12725] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12725] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12724] <... futex resumed>)        = 0
[pid 12724] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12724] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12725] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12725] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12724] <... futex resumed>)        = 0
[pid 12724] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12724] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12725] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12725] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12724] <... futex resumed>)        = 0
[pid 12725] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12724] exit_group(0 <unfinished ...>
[pid 12725] <... futex resumed>)        = ?
[pid 12724] <... exit_group resumed>)   = ?
[pid 12725] +++ exited with 0 +++
[pid 12724] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12724, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12726
./strace-static-x86_64: Process 12726 attached
[pid 12726] set_robust_list(0x5555874576a0, 24) = 0
[pid 12726] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12726] setpgid(0, 0)               = 0
[pid 12726] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12726] write(3, "1000", 4)         = 4
[pid 12726] close(3)                    = 0
executing program
[pid 12726] write(1, "executing program\n", 18) = 18
[pid 12726] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12726] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12726] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12726] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12726] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12726] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12726] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12727 attached
 => {parent_tid=[12727]}, 88) = 12727
[pid 12726] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12726] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12726] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12727] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12727] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12727] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12727] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12726] <... futex resumed>)        = 0
[pid 12726] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12726] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12727] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12727] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12726] <... futex resumed>)        = 0
[pid 12726] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12726] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12727] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12727] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12726] <... futex resumed>)        = 0
[pid 12726] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12726] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12727] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12727] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12726] <... futex resumed>)        = 0
[pid 12726] exit_group(0)               = ?
[pid 12727] +++ exited with 0 +++
[pid 12726] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12726, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12728
./strace-static-x86_64: Process 12728 attached
[pid 12728] set_robust_list(0x5555874576a0, 24) = 0
[pid 12728] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12728] setpgid(0, 0)               = 0
[pid 12728] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12728] write(3, "1000", 4)         = 4
[pid 12728] close(3)                    = 0
executing program
[pid 12728] write(1, "executing program\n", 18) = 18
[pid 12728] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12728] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12728] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12728] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12728] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12728] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12728] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12729 attached
 => {parent_tid=[12729]}, 88) = 12729
[pid 12728] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12728] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12728] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12729] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12729] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12729] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12729] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12728] <... futex resumed>)        = 0
[pid 12728] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12728] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12729] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12729] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12728] <... futex resumed>)        = 0
[pid 12728] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12728] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12729] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12729] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12728] <... futex resumed>)        = 0
[pid 12728] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12728] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12729] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12729] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12728] <... futex resumed>)        = 0
[pid 12728] exit_group(0)               = ?
[pid 12729] +++ exited with 0 +++
[pid 12728] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12728, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12730 attached
, child_tidptr=0x555587457690) = 12730
[pid 12730] set_robust_list(0x5555874576a0, 24) = 0
[pid 12730] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12730] setpgid(0, 0)               = 0
[pid 12730] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12730] write(3, "1000", 4)         = 4
[pid 12730] close(3)                    = 0
[pid 12730] write(1, "executing program\n", 18executing program
) = 18
[pid 12730] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12730] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12730] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12730] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12730] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12730] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12730] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12731 attached
 => {parent_tid=[12731]}, 88) = 12731
[pid 12731] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12731] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12731] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12730] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12730] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12731] <... futex resumed>)        = 0
[pid 12731] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12731] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12731] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12730] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12730] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12731] <... futex resumed>)        = 0
[pid 12731] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12731] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12731] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12730] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12730] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12731] <... futex resumed>)        = 0
[pid 12730] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12731] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12731] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12730] <... futex resumed>)        = 0
[pid 12730] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12730] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12731] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12731] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12730] <... futex resumed>)        = 0
[pid 12731] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12730] exit_group(0)               = ?
[pid 12731] <... futex resumed>)        = ?
[pid 12731] +++ exited with 0 +++
[pid 12730] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12730, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12732 attached
, child_tidptr=0x555587457690) = 12732
[pid 12732] set_robust_list(0x5555874576a0, 24) = 0
[pid 12732] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12732] setpgid(0, 0)               = 0
[pid 12732] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12732] write(3, "1000", 4)         = 4
[pid 12732] close(3)                    = 0
[pid 12732] write(1, "executing program\n", 18executing program
) = 18
[pid 12732] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12732] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12732] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12732] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12732] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12732] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12732] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12733 attached
 => {parent_tid=[12733]}, 88) = 12733
[pid 12733] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12732] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12733] <... set_robust_list resumed>) = 0
[pid 12733] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12733] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12732] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12732] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12733] <... futex resumed>)        = 0
[pid 12733] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12733] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12733] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12732] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12732] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12732] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12733] <... futex resumed>)        = 0
[pid 12733] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12733] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12732] <... futex resumed>)        = 0
[pid 12732] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12732] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12733] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12733] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12732] <... futex resumed>)        = 0
[pid 12732] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12732] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12733] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12733] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12732] <... futex resumed>)        = 0
[pid 12732] exit_group(0)               = ?
[pid 12733] +++ exited with 0 +++
[pid 12732] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12732, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12734
./strace-static-x86_64: Process 12734 attached
[pid 12734] set_robust_list(0x5555874576a0, 24) = 0
[pid 12734] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12734] setpgid(0, 0)               = 0
[pid 12734] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12734] write(3, "1000", 4)         = 4
[pid 12734] close(3)                    = 0
[pid 12734] write(1, "executing program\n", 18executing program
) = 18
[pid 12734] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12734] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12734] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12734] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12734] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12734] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12734] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12735 attached
 <unfinished ...>
[pid 12735] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12734] <... clone3 resumed> => {parent_tid=[12735]}, 88) = 12735
[pid 12735] <... set_robust_list resumed>) = 0
[pid 12735] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12735] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12734] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12734] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12735] <... futex resumed>)        = 0
[pid 12734] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12735] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12735] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12734] <... futex resumed>)        = 0
[pid 12734] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12734] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12735] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12735] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12734] <... futex resumed>)        = 0
[pid 12734] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12734] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12735] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12735] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12734] <... futex resumed>)        = 0
[pid 12734] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12734] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12735] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12735] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12734] <... futex resumed>)        = 0
[pid 12734] exit_group(0)               = ?
[pid 12735] +++ exited with 0 +++
[pid 12734] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12734, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12736
./strace-static-x86_64: Process 12736 attached
[pid 12736] set_robust_list(0x5555874576a0, 24) = 0
[pid 12736] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12736] setpgid(0, 0)               = 0
[pid 12736] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12736] write(3, "1000", 4)         = 4
[pid 12736] close(3)                    = 0
executing program
[pid 12736] write(1, "executing program\n", 18) = 18
[pid 12736] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12736] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12736] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12736] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12736] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12736] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12736] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12737 attached
 => {parent_tid=[12737]}, 88) = 12737
[pid 12736] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12736] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12736] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12737] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12737] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12737] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12737] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12737] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12736] <... futex resumed>)        = 0
[pid 12736] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12737] <... futex resumed>)        = 0
[pid 12737] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12736] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12737] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12737] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12736] <... futex resumed>)        = 0
[pid 12736] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12736] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12737] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12737] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12736] <... futex resumed>)        = 0
[pid 12736] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12736] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12737] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12737] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12736] <... futex resumed>)        = 0
[pid 12736] exit_group(0)               = ?
[pid 12737] +++ exited with 0 +++
[pid 12736] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12736, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12738
./strace-static-x86_64: Process 12738 attached
[pid 12738] set_robust_list(0x5555874576a0, 24) = 0
[pid 12738] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12738] setpgid(0, 0)               = 0
[pid 12738] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12738] write(3, "1000", 4)         = 4
[pid 12738] close(3executing program
)                    = 0
[pid 12738] write(1, "executing program\n", 18) = 18
[pid 12738] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12738] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12738] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12738] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12738] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12738] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12738] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12739 attached
 => {parent_tid=[12739]}, 88) = 12739
[pid 12739] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12738] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12738] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12738] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12739] <... set_robust_list resumed>) = 0
[pid 12739] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12739] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12739] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12738] <... futex resumed>)        = 0
[pid 12738] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12738] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12739] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12739] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12738] <... futex resumed>)        = 0
[pid 12738] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12738] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12739] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12739] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12738] <... futex resumed>)        = 0
[pid 12738] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12738] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12739] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12739] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12738] <... futex resumed>)        = 0
[pid 12738] exit_group(0)               = ?
[pid 12739] +++ exited with 0 +++
[pid 12738] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12738, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12740
./strace-static-x86_64: Process 12740 attached
[pid 12740] set_robust_list(0x5555874576a0, 24) = 0
[pid 12740] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12740] setpgid(0, 0)               = 0
[pid 12740] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12740] write(3, "1000", 4)         = 4
[pid 12740] close(3)                    = 0
executing program
[pid 12740] write(1, "executing program\n", 18) = 18
[pid 12740] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12740] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12740] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12740] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12740] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12740] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12740] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12741]}, 88) = 12741
[pid 12740] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12740] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12740] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12741 attached
 <unfinished ...>
[pid 12741] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12741] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12741] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12741] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12740] <... futex resumed>)        = 0
[pid 12740] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12740] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12741] <... futex resumed>)        = 1
[pid 12741] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12741] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12740] <... futex resumed>)        = 0
[pid 12740] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12740] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12741] <... futex resumed>)        = 1
[pid 12741] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12741] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12740] <... futex resumed>)        = 0
[pid 12740] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12740] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12741] <... futex resumed>)        = 1
[pid 12741] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12741] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12740] <... futex resumed>)        = 0
[pid 12740] exit_group(0)               = ?
[pid 12741] <... futex resumed>)        = ?
[pid 12741] +++ exited with 0 +++
[pid 12740] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12740, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12742 attached
, child_tidptr=0x555587457690) = 12742
[pid 12742] set_robust_list(0x5555874576a0, 24) = 0
[pid 12742] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12742] setpgid(0, 0)               = 0
[pid 12742] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12742] write(3, "1000", 4)         = 4
[pid 12742] close(3)                    = 0
[pid 12742] write(1, "executing program\n", 18executing program
) = 18
[pid 12742] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12742] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12742] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12742] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12742] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12742] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12742] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12743]}, 88) = 12743
[pid 12742] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12742] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12742] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12743 attached
 <unfinished ...>
[pid 12743] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12743] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12743] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12743] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12742] <... futex resumed>)        = 0
[pid 12742] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12742] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12743] <... futex resumed>)        = 1
[pid 12743] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12743] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12742] <... futex resumed>)        = 0
[pid 12742] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12742] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12743] <... futex resumed>)        = 1
[pid 12743] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12743] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12742] <... futex resumed>)        = 0
[pid 12742] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12742] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12743] <... futex resumed>)        = 1
[pid 12743] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12743] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12742] <... futex resumed>)        = 0
[pid 12742] exit_group(0)               = ?
[pid 12743] <... futex resumed>)        = ?
[pid 12743] +++ exited with 0 +++
[pid 12742] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12742, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12744
./strace-static-x86_64: Process 12744 attached
[pid 12744] set_robust_list(0x5555874576a0, 24) = 0
[pid 12744] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12744] setpgid(0, 0)               = 0
[pid 12744] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12744] write(3, "1000", 4)         = 4
[pid 12744] close(3)                    = 0
[pid 12744] write(1, "executing program\n", 18executing program
) = 18
[pid 12744] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12744] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12744] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12744] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12744] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12744] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12744] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12745 attached
 => {parent_tid=[12745]}, 88) = 12745
[pid 12744] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12744] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12744] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12745] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12745] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12745] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12745] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12744] <... futex resumed>)        = 0
[pid 12744] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12744] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12745] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12745] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12744] <... futex resumed>)        = 0
[pid 12744] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12744] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12745] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12745] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12744] <... futex resumed>)        = 0
[pid 12744] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12744] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12745] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12745] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12744] <... futex resumed>)        = 0
[pid 12744] exit_group(0)               = ?
[pid 12745] +++ exited with 0 +++
[pid 12744] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12744, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12746
./strace-static-x86_64: Process 12746 attached
[pid 12746] set_robust_list(0x5555874576a0, 24) = 0
[pid 12746] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12746] setpgid(0, 0)               = 0
[pid 12746] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12746] write(3, "1000", 4)         = 4
[pid 12746] close(3)                    = 0
[pid 12746] write(1, "executing program\n", 18executing program
) = 18
[pid 12746] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12746] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12746] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12746] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12746] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12746] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12746] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12747 attached
 <unfinished ...>
[pid 12747] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12747] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12747] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12746] <... clone3 resumed> => {parent_tid=[12747]}, 88) = 12747
[pid 12746] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12746] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12747] <... futex resumed>)        = 0
[pid 12747] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12747] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12747] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12746] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12746] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12747] <... futex resumed>)        = 0
[pid 12747] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12747] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12747] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12746] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12746] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12747] <... futex resumed>)        = 0
[pid 12747] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12747] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12747] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12746] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12746] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12747] <... futex resumed>)        = 0
[pid 12747] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12747] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12747] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12746] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12746] exit_group(0)               = ?
[pid 12747] <... futex resumed>)        = ?
[pid 12747] +++ exited with 0 +++
[pid 12746] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12746, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12748
./strace-static-x86_64: Process 12748 attached
[pid 12748] set_robust_list(0x5555874576a0, 24) = 0
[pid 12748] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12748] setpgid(0, 0)               = 0
[pid 12748] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12748] write(3, "1000", 4)         = 4
[pid 12748] close(3)                    = 0
[pid 12748] write(1, "executing program\n", 18executing program
) = 18
[pid 12748] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12748] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12748] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12748] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12748] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12748] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12748] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12749 attached
 => {parent_tid=[12749]}, 88) = 12749
[pid 12749] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12749] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12749] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12748] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12748] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12749] <... futex resumed>)        = 0
[pid 12749] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12748] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12749] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12749] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12749] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12748] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12748] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12749] <... futex resumed>)        = 0
[pid 12748] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12749] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12749] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12749] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12748] <... futex resumed>)        = 0
[pid 12748] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12749] <... futex resumed>)        = 0
[pid 12748] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12749] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12749] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12749] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12748] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12748] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12749] <... futex resumed>)        = 0
[pid 12748] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12749] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12749] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12749] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12748] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12748] exit_group(0)               = ?
[pid 12749] <... futex resumed>)        = ?
[pid 12749] +++ exited with 0 +++
[pid 12748] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12748, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12750 attached
, child_tidptr=0x555587457690) = 12750
[pid 12750] set_robust_list(0x5555874576a0, 24) = 0
[pid 12750] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12750] setpgid(0, 0)               = 0
[pid 12750] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12750] write(3, "1000", 4)         = 4
executing program
[pid 12750] close(3)                    = 0
[pid 12750] write(1, "executing program\n", 18) = 18
[pid 12750] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12750] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12750] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12750] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12750] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12750] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12750] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12751 attached
 => {parent_tid=[12751]}, 88) = 12751
[pid 12750] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12750] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12750] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12751] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12751] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12751] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12751] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12750] <... futex resumed>)        = 0
[pid 12750] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12750] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12751] <... futex resumed>)        = 1
[pid 12751] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12751] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12750] <... futex resumed>)        = 0
[pid 12750] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12750] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12751] <... futex resumed>)        = 1
[pid 12751] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12751] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12750] <... futex resumed>)        = 0
[pid 12750] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12750] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12751] <... futex resumed>)        = 1
[pid 12751] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12751] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12750] <... futex resumed>)        = 0
[pid 12750] exit_group(0)               = ?
[pid 12751] <... futex resumed>)        = ?
[pid 12751] +++ exited with 0 +++
[pid 12750] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12750, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12752
./strace-static-x86_64: Process 12752 attached
[pid 12752] set_robust_list(0x5555874576a0, 24) = 0
[pid 12752] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12752] setpgid(0, 0)               = 0
[pid 12752] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12752] write(3, "1000", 4)         = 4
[pid 12752] close(3)                    = 0
executing program
[pid 12752] write(1, "executing program\n", 18) = 18
[pid 12752] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12752] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12752] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12752] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12752] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12752] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12752] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12753]}, 88) = 12753
./strace-static-x86_64: Process 12753 attached
[pid 12752] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12753] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12753] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12753] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12752] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12752] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12752] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12753] <... futex resumed>)        = 0
[pid 12753] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12753] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12753] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12752] <... futex resumed>)        = 0
[pid 12752] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12752] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12753] <... futex resumed>)        = 0
[pid 12753] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12753] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12752] <... futex resumed>)        = 0
[pid 12752] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12752] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12753] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12753] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12752] <... futex resumed>)        = 0
[pid 12752] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12752] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12753] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12753] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12752] <... futex resumed>)        = 0
[pid 12752] exit_group(0)               = ?
[pid 12753] +++ exited with 0 +++
[pid 12752] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12752, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12754
./strace-static-x86_64: Process 12754 attached
[pid 12754] set_robust_list(0x5555874576a0, 24) = 0
[pid 12754] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12754] setpgid(0, 0)               = 0
[pid 12754] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12754] write(3, "1000", 4)         = 4
[pid 12754] close(3)                    = 0
[pid 12754] write(1, "executing program\n", 18executing program
) = 18
[pid 12754] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12754] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12754] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12754] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12754] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12754] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12754] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12755 attached
 => {parent_tid=[12755]}, 88) = 12755
[pid 12755] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12755] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12755] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12754] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12754] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12755] <... futex resumed>)        = 0
[pid 12755] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12755] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12755] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12754] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12754] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12755] <... futex resumed>)        = 0
[pid 12755] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12755] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12755] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12754] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12754] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12755] <... futex resumed>)        = 0
[pid 12755] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12755] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12755] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12754] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12754] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12755] <... futex resumed>)        = 0
[pid 12755] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12754] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12755] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12755] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12754] <... futex resumed>)        = 0
[pid 12754] exit_group(0)               = ?
[pid 12755] +++ exited with 0 +++
[pid 12754] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12754, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12756
./strace-static-x86_64: Process 12756 attached
[pid 12756] set_robust_list(0x5555874576a0, 24) = 0
[pid 12756] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12756] setpgid(0, 0)               = 0
[pid 12756] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12756] write(3, "1000", 4)         = 4
[pid 12756] close(3)                    = 0
executing program
[pid 12756] write(1, "executing program\n", 18) = 18
[pid 12756] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12756] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12756] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12756] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12756] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12756] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12756] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12757]}, 88) = 12757
./strace-static-x86_64: Process 12757 attached
[pid 12756] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12757] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12756] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12757] <... set_robust_list resumed>) = 0
[pid 12756] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12757] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12756] <... futex resumed>)        = 0
[pid 12757] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12756] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12757] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12757] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12756] <... futex resumed>)        = 0
[pid 12756] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12756] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12757] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12757] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12756] <... futex resumed>)        = 0
[pid 12756] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12756] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12757] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12757] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12756] <... futex resumed>)        = 0
[pid 12756] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12756] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12757] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12757] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12756] <... futex resumed>)        = 0
[pid 12756] exit_group(0)               = ?
[pid 12757] +++ exited with 0 +++
[pid 12756] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12756, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12758 attached
, child_tidptr=0x555587457690) = 12758
[pid 12758] set_robust_list(0x5555874576a0, 24) = 0
[pid 12758] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12758] setpgid(0, 0)               = 0
[pid 12758] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12758] write(3, "1000", 4)         = 4
[pid 12758] close(3)                    = 0
[pid 12758] write(1, "executing program\n", 18executing program
) = 18
[pid 12758] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12758] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12758] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12758] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12758] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12758] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12758] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12759 attached
 => {parent_tid=[12759]}, 88) = 12759
[pid 12759] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12759] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12759] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12758] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12758] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12759] <... futex resumed>)        = 0
[pid 12759] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12759] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12759] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12758] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12758] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12759] <... futex resumed>)        = 0
[pid 12759] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12759] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12759] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12758] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12758] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12759] <... futex resumed>)        = 0
[pid 12759] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12759] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12759] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12758] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12758] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12759] <... futex resumed>)        = 0
[pid 12759] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12759] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12759] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12758] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12758] exit_group(0)               = ?
[pid 12759] <... futex resumed>)        = ?
[pid 12759] +++ exited with 0 +++
[pid 12758] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12758, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12760
./strace-static-x86_64: Process 12760 attached
[pid 12760] set_robust_list(0x5555874576a0, 24) = 0
[pid 12760] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12760] setpgid(0, 0)               = 0
[pid 12760] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12760] write(3, "1000", 4)         = 4
[pid 12760] close(3)                    = 0
[pid 12760] write(1, "executing program\n", 18executing program
) = 18
[pid 12760] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12760] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12760] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12760] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12760] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12760] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12760] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12761 attached
 => {parent_tid=[12761]}, 88) = 12761
[pid 12761] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12760] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12761] <... set_robust_list resumed>) = 0
[pid 12760] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12761] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12760] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12761] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12760] <... futex resumed>)        = 0
[pid 12761] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12760] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12761] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12761] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12760] <... futex resumed>)        = 0
[pid 12760] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12760] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12761] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12761] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12760] <... futex resumed>)        = 0
[pid 12760] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12760] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12761] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12761] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12760] <... futex resumed>)        = 0
[pid 12760] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12760] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12761] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12761] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12761] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12760] <... futex resumed>)        = 0
[pid 12760] exit_group(0)               = ?
[pid 12761] <... futex resumed>)        = ?
[pid 12761] +++ exited with 0 +++
[pid 12760] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12760, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12762
./strace-static-x86_64: Process 12762 attached
[pid 12762] set_robust_list(0x5555874576a0, 24) = 0
[pid 12762] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12762] setpgid(0, 0)               = 0
[pid 12762] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12762] write(3, "1000", 4)         = 4
[pid 12762] close(3)                    = 0
[pid 12762] write(1, "executing program\n", 18executing program
) = 18
[pid 12762] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12762] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12762] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12762] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12762] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12762] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12762] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12763 attached
 => {parent_tid=[12763]}, 88) = 12763
[pid 12763] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12762] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12762] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12762] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12763] <... set_robust_list resumed>) = 0
[pid 12763] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12763] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12763] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12762] <... futex resumed>)        = 0
[pid 12762] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12762] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12763] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12763] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12762] <... futex resumed>)        = 0
[pid 12762] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12762] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12763] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12763] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12762] <... futex resumed>)        = 0
[pid 12762] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12762] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12763] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12763] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12762] <... futex resumed>)        = 0
[pid 12762] exit_group(0)               = ?
[pid 12763] +++ exited with 0 +++
[pid 12762] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12762, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12764 attached
, child_tidptr=0x555587457690) = 12764
[pid 12764] set_robust_list(0x5555874576a0, 24) = 0
[pid 12764] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12764] setpgid(0, 0)               = 0
[pid 12764] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12764] write(3, "1000", 4)         = 4
[pid 12764] close(3)                    = 0
[pid 12764] write(1, "executing program\n", 18executing program
) = 18
[pid 12764] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12764] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12764] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12764] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12764] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12764] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12764] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12765 attached
 => {parent_tid=[12765]}, 88) = 12765
[pid 12765] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12765] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12765] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12764] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12764] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12765] <... futex resumed>)        = 0
[pid 12765] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12765] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12765] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12764] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12764] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12765] <... futex resumed>)        = 0
[pid 12765] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12765] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12765] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12764] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12764] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12765] <... futex resumed>)        = 0
[pid 12765] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12765] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12765] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12764] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12764] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12765] <... futex resumed>)        = 0
[pid 12765] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12765] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12765] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12764] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12764] exit_group(0)               = ?
[pid 12765] <... futex resumed>)        = ?
[pid 12765] +++ exited with 0 +++
[pid 12764] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12764, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12766
./strace-static-x86_64: Process 12766 attached
[pid 12766] set_robust_list(0x5555874576a0, 24) = 0
[pid 12766] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12766] setpgid(0, 0)               = 0
[pid 12766] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12766] write(3, "1000", 4)         = 4
[pid 12766] close(3)                    = 0
[pid 12766] write(1, "executing program\n", 18executing program
) = 18
[pid 12766] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12766] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12766] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12766] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12766] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12766] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12766] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12767 attached
 => {parent_tid=[12767]}, 88) = 12767
[pid 12767] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12766] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12766] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12766] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12767] <... set_robust_list resumed>) = 0
[pid 12767] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12767] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12767] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12766] <... futex resumed>)        = 0
[pid 12766] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12766] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12767] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12767] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12766] <... futex resumed>)        = 0
[pid 12766] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12766] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12767] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12767] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12766] <... futex resumed>)        = 0
[pid 12766] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12766] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12767] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12767] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12766] <... futex resumed>)        = 0
[pid 12766] exit_group(0)               = ?
[pid 12767] +++ exited with 0 +++
[pid 12766] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12766, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12768
./strace-static-x86_64: Process 12768 attached
[pid 12768] set_robust_list(0x5555874576a0, 24) = 0
[pid 12768] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12768] setpgid(0, 0)               = 0
[pid 12768] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12768] write(3, "1000", 4)         = 4
[pid 12768] close(3executing program
)                    = 0
[pid 12768] write(1, "executing program\n", 18) = 18
[pid 12768] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12768] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12768] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12768] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12768] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12768] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12768] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12769 attached
 => {parent_tid=[12769]}, 88) = 12769
[pid 12769] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12769] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12769] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12768] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12768] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12769] <... futex resumed>)        = 0
[pid 12769] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12768] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12769] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12769] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12769] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12768] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12768] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12769] <... futex resumed>)        = 0
[pid 12769] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12769] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12769] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12768] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12768] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12769] <... futex resumed>)        = 0
[pid 12769] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12769] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12769] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12768] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12768] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12769] <... futex resumed>)        = 0
[pid 12768] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12769] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12769] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12769] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12768] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12768] exit_group(0 <unfinished ...>
[pid 12769] <... futex resumed>)        = ?
[pid 12768] <... exit_group resumed>)   = ?
[pid 12769] +++ exited with 0 +++
[pid 12768] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12768, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12770
./strace-static-x86_64: Process 12770 attached
[pid 12770] set_robust_list(0x5555874576a0, 24) = 0
[pid 12770] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12770] setpgid(0, 0)               = 0
[pid 12770] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12770] write(3, "1000", 4)         = 4
[pid 12770] close(3)                    = 0
[pid 12770] write(1, "executing program\n", 18executing program
) = 18
[pid 12770] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12770] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12770] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12770] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12770] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12770] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12770] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12771 attached
 => {parent_tid=[12771]}, 88) = 12771
[pid 12771] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12771] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12771] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12770] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12770] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12771] <... futex resumed>)        = 0
[pid 12771] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12771] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12771] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12770] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12770] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12771] <... futex resumed>)        = 0
[pid 12771] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12770] <... futex resumed>)        = 1
[pid 12771] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12771] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12771] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12770] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12770] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12771] <... futex resumed>)        = 0
[pid 12771] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12771] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12771] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12770] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12770] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12771] <... futex resumed>)        = 0
[pid 12771] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12771] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12771] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12770] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12770] exit_group(0)               = ?
[pid 12771] <... futex resumed>)        = ?
[pid 12771] +++ exited with 0 +++
[pid 12770] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12770, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12772
./strace-static-x86_64: Process 12772 attached
[pid 12772] set_robust_list(0x5555874576a0, 24) = 0
[pid 12772] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12772] setpgid(0, 0)               = 0
[pid 12772] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12772] write(3, "1000", 4executing program
)         = 4
[pid 12772] close(3)                    = 0
[pid 12772] write(1, "executing program\n", 18) = 18
[pid 12772] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12772] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12772] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12772] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12772] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12772] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12772] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12773 attached
 => {parent_tid=[12773]}, 88) = 12773
[pid 12772] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12772] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12772] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12773] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12773] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12773] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12773] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12772] <... futex resumed>)        = 0
[pid 12772] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12772] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12773] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12773] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12772] <... futex resumed>)        = 0
[pid 12773] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12772] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12773] <... futex resumed>)        = 0
[pid 12773] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12772] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12773] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12773] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12772] <... futex resumed>)        = 0
[pid 12772] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12772] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12773] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12773] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12772] <... futex resumed>)        = 0
[pid 12772] exit_group(0)               = ?
[pid 12773] +++ exited with 0 +++
[pid 12772] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12772, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12774
./strace-static-x86_64: Process 12774 attached
[pid 12774] set_robust_list(0x5555874576a0, 24) = 0
[pid 12774] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12774] setpgid(0, 0)               = 0
[pid 12774] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12774] write(3, "1000", 4)         = 4
[pid 12774] close(3)                    = 0
executing program
[pid 12774] write(1, "executing program\n", 18) = 18
[pid 12774] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12774] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12774] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12774] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12774] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12774] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12774] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12775 attached
 => {parent_tid=[12775]}, 88) = 12775
[pid 12775] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12774] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12775] <... set_robust_list resumed>) = 0
[pid 12774] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12775] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12774] <... futex resumed>)        = 0
[pid 12775] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12775] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12774] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12775] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12775] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12774] <... futex resumed>)        = 0
[pid 12774] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12774] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12775] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12775] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12774] <... futex resumed>)        = 0
[pid 12774] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12774] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12775] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12775] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12774] <... futex resumed>)        = 0
[pid 12774] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12774] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12775] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12775] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12774] <... futex resumed>)        = 0
[pid 12774] exit_group(0)               = ?
[pid 12775] +++ exited with 0 +++
[pid 12774] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12774, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12776
./strace-static-x86_64: Process 12776 attached
[pid 12776] set_robust_list(0x5555874576a0, 24) = 0
[pid 12776] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12776] setpgid(0, 0)               = 0
[pid 12776] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12776] write(3, "1000", 4)         = 4
[pid 12776] close(3)                    = 0
[pid 12776] write(1, "executing program\n", 18executing program
) = 18
[pid 12776] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12776] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12776] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12776] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12776] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12776] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12776] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12777]}, 88) = 12777
./strace-static-x86_64: Process 12777 attached
[pid 12776] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12777] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12776] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12776] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12776] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12777] <... set_robust_list resumed>) = 0
[pid 12777] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12777] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12777] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12776] <... futex resumed>)        = 0
[pid 12777] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12776] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12777] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12776] <... futex resumed>)        = 0
[pid 12777] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12776] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12777] <... futex resumed>)        = 0
[pid 12776] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12777] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12776] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12777] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12776] <... futex resumed>)        = 0
[pid 12777] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12776] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12777] <... futex resumed>)        = 0
[pid 12776] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12777] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12776] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12777] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12776] <... futex resumed>)        = 0
[pid 12777] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12776] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12777] <... futex resumed>)        = 0
[pid 12776] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12777] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12776] exit_group(0 <unfinished ...>
[pid 12777] <... futex resumed>)        = ?
[pid 12776] <... exit_group resumed>)   = ?
[pid 12777] +++ exited with 0 +++
[pid 12776] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12776, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12778
./strace-static-x86_64: Process 12778 attached
[pid 12778] set_robust_list(0x5555874576a0, 24) = 0
[pid 12778] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12778] setpgid(0, 0)               = 0
[pid 12778] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12778] write(3, "1000", 4)         = 4
[pid 12778] close(3)                    = 0
executing program
[pid 12778] write(1, "executing program\n", 18) = 18
[pid 12778] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12778] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12778] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12778] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12778] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12778] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12778] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12779]}, 88) = 12779
./strace-static-x86_64: Process 12779 attached
[pid 12778] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12778] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12778] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12779] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12779] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12779] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12779] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12778] <... futex resumed>)        = 0
[pid 12779] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12778] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12779] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12778] <... futex resumed>)        = 0
[pid 12779] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12778] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12779] <... futex resumed>)        = 0
[pid 12778] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12779] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12778] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12779] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12778] <... futex resumed>)        = 0
[pid 12779] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12778] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12779] <... futex resumed>)        = 0
[pid 12778] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12779] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12778] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12779] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12778] <... futex resumed>)        = 0
[pid 12779] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12778] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12779] <... futex resumed>)        = 0
[pid 12778] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12779] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12778] exit_group(0 <unfinished ...>
[pid 12779] <... futex resumed>)        = ?
[pid 12778] <... exit_group resumed>)   = ?
[pid 12779] +++ exited with 0 +++
[pid 12778] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12778, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12780 attached
 <unfinished ...>
[pid 12780] set_robust_list(0x5555874576a0, 24) = 0
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 12780
[pid 12780] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12780] setpgid(0, 0)               = 0
[pid 12780] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12780] write(3, "1000", 4)         = 4
[pid 12780] close(3)                    = 0
[pid 12780] write(1, "executing program\n", 18executing program
) = 18
[pid 12780] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12780] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12780] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12780] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12780] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12780] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12780] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12781 attached
 => {parent_tid=[12781]}, 88) = 12781
[pid 12781] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12780] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12781] <... set_robust_list resumed>) = 0
[pid 12780] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12781] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12780] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12781] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12780] <... futex resumed>)        = 0
[pid 12781] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12780] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12781] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12781] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12780] <... futex resumed>)        = 0
[pid 12781] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12780] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12781] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12780] <... futex resumed>)        = 0
[pid 12781] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12780] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12781] <... futex resumed>)        = 0
[pid 12780] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12781] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12780] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12781] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12780] <... futex resumed>)        = 0
[pid 12781] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12780] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12781] <... futex resumed>)        = 0
[pid 12780] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12781] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12780] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12781] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12780] <... futex resumed>)        = 0
[pid 12781] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12780] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12781] <... futex resumed>)        = 0
[pid 12780] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12781] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12780] exit_group(0 <unfinished ...>
[pid 12781] <... futex resumed>)        = ?
[pid 12780] <... exit_group resumed>)   = ?
[pid 12781] +++ exited with 0 +++
[pid 12780] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12780, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12782
./strace-static-x86_64: Process 12782 attached
[pid 12782] set_robust_list(0x5555874576a0, 24) = 0
[pid 12782] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12782] setpgid(0, 0)               = 0
[pid 12782] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12782] write(3, "1000", 4)         = 4
[pid 12782] close(3)                    = 0
executing program
[pid 12782] write(1, "executing program\n", 18) = 18
[pid 12782] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12782] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12782] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12782] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12782] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12782] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12782] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12783 attached
 => {parent_tid=[12783]}, 88) = 12783
[pid 12782] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12782] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12782] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12783] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12783] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12783] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12783] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12782] <... futex resumed>)        = 0
[pid 12783] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12782] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12783] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12782] <... futex resumed>)        = 0
[pid 12783] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12782] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12783] <... futex resumed>)        = 0
[pid 12782] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12783] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12782] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12783] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12782] <... futex resumed>)        = 0
[pid 12783] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12782] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12783] <... futex resumed>)        = 0
[pid 12782] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12783] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12782] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12783] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12782] <... futex resumed>)        = 0
[pid 12783] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12782] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12783] <... futex resumed>)        = 0
[pid 12782] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12783] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12782] exit_group(0 <unfinished ...>
[pid 12783] <... futex resumed>)        = ?
[pid 12782] <... exit_group resumed>)   = ?
[pid 12783] +++ exited with 0 +++
[pid 12782] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12782, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12784 attached
, child_tidptr=0x555587457690) = 12784
[pid 12784] set_robust_list(0x5555874576a0, 24) = 0
[pid 12784] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12784] setpgid(0, 0)               = 0
[pid 12784] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12784] write(3, "1000", 4)         = 4
[pid 12784] close(3)                    = 0
[pid 12784] write(1, "executing program\n", 18executing program
) = 18
[pid 12784] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12784] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12784] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12784] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12784] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12784] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12784] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12785]}, 88) = 12785
[pid 12784] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12784] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12784] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12785 attached
 <unfinished ...>
[pid 12785] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12785] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12785] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12785] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12784] <... futex resumed>)        = 0
[pid 12785] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12784] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12785] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12784] <... futex resumed>)        = 0
[pid 12785] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12784] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12785] <... futex resumed>)        = 0
[pid 12784] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12785] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12784] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12785] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12784] <... futex resumed>)        = 0
[pid 12785] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12784] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12785] <... futex resumed>)        = 0
[pid 12784] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12785] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12784] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12785] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12784] <... futex resumed>)        = 0
[pid 12785] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12784] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12785] <... futex resumed>)        = 0
[pid 12784] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12785] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12784] exit_group(0 <unfinished ...>
[pid 12785] <... futex resumed>)        = ?
[pid 12784] <... exit_group resumed>)   = ?
[pid 12785] +++ exited with 0 +++
[pid 12784] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12784, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12786
./strace-static-x86_64: Process 12786 attached
[pid 12786] set_robust_list(0x5555874576a0, 24) = 0
[pid 12786] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12786] setpgid(0, 0)               = 0
[pid 12786] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12786] write(3, "1000", 4)         = 4
[pid 12786] close(3executing program
)                    = 0
[pid 12786] write(1, "executing program\n", 18) = 18
[pid 12786] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12786] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12786] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12786] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12786] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12786] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12786] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12787]}, 88) = 12787
./strace-static-x86_64: Process 12787 attached
[pid 12787] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12786] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12787] <... set_robust_list resumed>) = 0
[pid 12786] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12787] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12786] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12787] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12786] <... futex resumed>)        = 0
[pid 12787] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12786] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12787] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12787] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12786] <... futex resumed>)        = 0
[pid 12787] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12786] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12787] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12786] <... futex resumed>)        = 0
[pid 12787] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12786] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12787] <... futex resumed>)        = 0
[pid 12786] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12787] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12786] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12787] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12786] <... futex resumed>)        = 0
[pid 12787] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12786] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12787] <... futex resumed>)        = 0
[pid 12786] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12786] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12787] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12786] <... futex resumed>)        = 0
[pid 12787] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12786] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12787] <... futex resumed>)        = 0
[pid 12786] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12787] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12786] exit_group(0 <unfinished ...>
[pid 12787] <... futex resumed>)        = ?
[pid 12786] <... exit_group resumed>)   = ?
[pid 12787] +++ exited with 0 +++
[pid 12786] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12786, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12788 attached
, child_tidptr=0x555587457690) = 12788
[pid 12788] set_robust_list(0x5555874576a0, 24) = 0
[pid 12788] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12788] setpgid(0, 0)               = 0
[pid 12788] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12788] write(3, "1000", 4)         = 4
[pid 12788] close(3)                    = 0
[pid 12788] write(1, "executing program\n", 18executing program
) = 18
[pid 12788] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12788] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12788] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12788] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12788] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12788] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12788] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12789 attached
 <unfinished ...>
[pid 12789] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12788] <... clone3 resumed> => {parent_tid=[12789]}, 88) = 12789
[pid 12789] <... set_robust_list resumed>) = 0
[pid 12788] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12789] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12788] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12789] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12788] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12789] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12788] <... futex resumed>)        = 0
[pid 12789] <... bpf resumed>, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12788] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12789] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12788] <... futex resumed>)        = 0
[pid 12789] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12788] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12789] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12788] <... futex resumed>)        = 0
[pid 12789] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12788] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12789] <... futex resumed>)        = 0
[pid 12788] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12789] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12788] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12789] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12788] <... futex resumed>)        = 0
[pid 12789] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12788] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12789] <... futex resumed>)        = 0
[pid 12788] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12789] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12788] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12789] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12788] <... futex resumed>)        = 0
[pid 12789] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12788] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12789] <... futex resumed>)        = 0
[pid 12788] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12789] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12788] exit_group(0 <unfinished ...>
[pid 12789] <... futex resumed>)        = ?
[pid 12788] <... exit_group resumed>)   = ?
[pid 12789] +++ exited with 0 +++
[pid 12788] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12788, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12790 attached
 <unfinished ...>
[pid 12790] set_robust_list(0x5555874576a0, 24 <unfinished ...>
[pid   289] <... clone resumed>, child_tidptr=0x555587457690) = 12790
[pid 12790] <... set_robust_list resumed>) = 0
[pid 12790] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12790] setpgid(0, 0)               = 0
[pid 12790] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12790] write(3, "1000", 4)         = 4
[pid 12790] close(3)                    = 0
[pid 12790] write(1, "executing program\n", 18executing program
) = 18
[pid 12790] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12790] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12790] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12790] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12790] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12790] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12790] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12791 attached
 => {parent_tid=[12791]}, 88) = 12791
[pid 12790] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12790] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12790] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12791] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12791] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12791] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12791] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12790] <... futex resumed>)        = 0
[pid 12791] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12790] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12791] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12790] <... futex resumed>)        = 0
[pid 12791] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12790] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12791] <... futex resumed>)        = 0
[pid 12790] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12791] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12790] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12791] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12790] <... futex resumed>)        = 0
[pid 12791] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12790] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12791] <... futex resumed>)        = 0
[pid 12790] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12791] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12790] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12791] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12790] <... futex resumed>)        = 0
[pid 12791] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12790] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12791] <... futex resumed>)        = 0
[pid 12790] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12791] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12790] exit_group(0 <unfinished ...>
[pid 12791] <... futex resumed>)        = ?
[pid 12790] <... exit_group resumed>)   = ?
[pid 12791] +++ exited with 0 +++
[pid 12790] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12790, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12792
./strace-static-x86_64: Process 12792 attached
[pid 12792] set_robust_list(0x5555874576a0, 24) = 0
[pid 12792] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12792] setpgid(0, 0)               = 0
[pid 12792] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12792] write(3, "1000", 4)         = 4
[pid 12792] close(3executing program
)                    = 0
[pid 12792] write(1, "executing program\n", 18) = 18
[pid 12792] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12792] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12792] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12792] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12792] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12792] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12792] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12793 attached
 => {parent_tid=[12793]}, 88) = 12793
[pid 12793] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12792] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12793] <... set_robust_list resumed>) = 0
[pid 12793] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12792] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12792] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12793] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12793] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12793] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12792] <... futex resumed>)        = 0
[pid 12792] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12792] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12793] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12793] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12792] <... futex resumed>)        = 0
[pid 12792] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12792] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12793] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12793] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12792] <... futex resumed>)        = 0
[pid 12792] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12792] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12793] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12793] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12792] <... futex resumed>)        = 0
[pid 12792] exit_group(0)               = ?
[pid 12793] +++ exited with 0 +++
[pid 12792] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12792, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12794
./strace-static-x86_64: Process 12794 attached
[pid 12794] set_robust_list(0x5555874576a0, 24) = 0
[pid 12794] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12794] setpgid(0, 0)               = 0
[pid 12794] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
executing program
[pid 12794] write(3, "1000", 4)         = 4
[pid 12794] close(3)                    = 0
[pid 12794] write(1, "executing program\n", 18) = 18
[pid 12794] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12794] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12794] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12794] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12794] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12794] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12794] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12795 attached
 => {parent_tid=[12795]}, 88) = 12795
[pid 12795] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12795] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12795] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12794] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12794] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12795] <... futex resumed>)        = 0
[pid 12795] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12795] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12795] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12794] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12794] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12795] <... futex resumed>)        = 0
[pid 12795] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12794] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12795] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12794] <... futex resumed>)        = 0
[pid 12794] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12795] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12794] <... futex resumed>)        = 0
[pid 12795] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12794] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12795] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12794] <... futex resumed>)        = 0
[pid 12794] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12794] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12795] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12795] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12794] <... futex resumed>)        = 0
[pid 12794] exit_group(0)               = ?
[pid 12795] +++ exited with 0 +++
[pid 12794] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12794, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12796
./strace-static-x86_64: Process 12796 attached
[pid 12796] set_robust_list(0x5555874576a0, 24) = 0
[pid 12796] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12796] setpgid(0, 0)               = 0
[pid 12796] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12796] write(3, "1000", 4)         = 4
[pid 12796] close(3)                    = 0
[pid 12796] write(1, "executing program\n", 18executing program
) = 18
[pid 12796] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12796] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12796] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12796] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12796] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12796] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12796] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12797 attached
 => {parent_tid=[12797]}, 88) = 12797
[pid 12796] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12796] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12796] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12797] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12797] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12797] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12797] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12796] <... futex resumed>)        = 0
[pid 12796] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12796] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12797] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12797] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12796] <... futex resumed>)        = 0
[pid 12796] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12796] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12797] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12797] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12796] <... futex resumed>)        = 0
[pid 12796] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12796] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12797] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12797] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12796] <... futex resumed>)        = 0
[pid 12796] exit_group(0)               = ?
[pid 12797] +++ exited with 0 +++
[pid 12796] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12796, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12798
./strace-static-x86_64: Process 12798 attached
[pid 12798] set_robust_list(0x5555874576a0, 24) = 0
[pid 12798] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12798] setpgid(0, 0)               = 0
[pid 12798] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12798] write(3, "1000", 4)         = 4
[pid 12798] close(3)                    = 0
executing program
[pid 12798] write(1, "executing program\n", 18) = 18
[pid 12798] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12798] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12798] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12798] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12798] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12798] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12798] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12799 attached
 <unfinished ...>
[pid 12799] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12798] <... clone3 resumed> => {parent_tid=[12799]}, 88) = 12799
[pid 12798] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12798] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12798] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12799] <... set_robust_list resumed>) = 0
[pid 12799] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12799] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12799] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12799] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12798] <... futex resumed>)        = 0
[pid 12798] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12799] <... futex resumed>)        = 0
[pid 12798] <... futex resumed>)        = 1
[pid 12799] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12799] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12799] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12798] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12798] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12799] <... futex resumed>)        = 0
[pid 12798] <... futex resumed>)        = 1
[pid 12799] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12798] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12799] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12799] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12799] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12798] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12798] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12799] <... futex resumed>)        = 0
[pid 12798] <... futex resumed>)        = 1
[pid 12799] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12799] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12799] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12798] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12798] exit_group(0 <unfinished ...>
[pid 12799] <... futex resumed>)        = ?
[pid 12798] <... exit_group resumed>)   = ?
[pid 12799] +++ exited with 0 +++
[pid 12798] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12798, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12800
./strace-static-x86_64: Process 12800 attached
[pid 12800] set_robust_list(0x5555874576a0, 24) = 0
[pid 12800] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12800] setpgid(0, 0)               = 0
[pid 12800] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12800] write(3, "1000", 4)         = 4
[pid 12800] close(3)                    = 0
[pid 12800] write(1, "executing program\n", 18executing program
) = 18
[pid 12800] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12800] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12800] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12800] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12800] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12800] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12800] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12801 attached
 <unfinished ...>
[pid 12801] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12801] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12801] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12800] <... clone3 resumed> => {parent_tid=[12801]}, 88) = 12801
[pid 12800] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12800] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12801] <... futex resumed>)        = 0
[pid 12801] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12801] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12801] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12800] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12800] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12801] <... futex resumed>)        = 0
[pid 12801] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12801] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12801] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12800] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12800] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12801] <... futex resumed>)        = 0
[pid 12801] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12801] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12801] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12800] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12800] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12801] <... futex resumed>)        = 0
[pid 12800] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12801] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12801] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12801] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12800] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12800] exit_group(0)               = ?
[pid 12801] <... futex resumed>)        = ?
[pid 12801] +++ exited with 0 +++
[pid 12800] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12800, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12802
./strace-static-x86_64: Process 12802 attached
[pid 12802] set_robust_list(0x5555874576a0, 24) = 0
[pid 12802] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12802] setpgid(0, 0)               = 0
[pid 12802] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12802] write(3, "1000", 4)         = 4
[pid 12802] close(3)                    = 0
[pid 12802] write(1, "executing program\n", 18executing program
) = 18
[pid 12802] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12802] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12802] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12802] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12802] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12802] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12802] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12803 attached
 => {parent_tid=[12803]}, 88) = 12803
[pid 12803] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12802] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12803] <... set_robust_list resumed>) = 0
[pid 12802] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12803] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12802] <... futex resumed>)        = 0
[pid 12803] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12802] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12803] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12803] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12803] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12802] <... futex resumed>)        = 0
[pid 12802] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12803] <... futex resumed>)        = 0
[pid 12803] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12802] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12803] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12803] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12802] <... futex resumed>)        = 0
[pid 12802] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12802] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12803] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12803] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12802] <... futex resumed>)        = 0
[pid 12802] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12802] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12803] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12803] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12802] <... futex resumed>)        = 0
[pid 12802] exit_group(0)               = ?
[pid 12803] +++ exited with 0 +++
[pid 12802] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12802, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12804
./strace-static-x86_64: Process 12804 attached
[pid 12804] set_robust_list(0x5555874576a0, 24) = 0
[pid 12804] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12804] setpgid(0, 0)               = 0
[pid 12804] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12804] write(3, "1000", 4)         = 4
[pid 12804] close(3)                    = 0
executing program
[pid 12804] write(1, "executing program\n", 18) = 18
[pid 12804] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12804] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12804] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12804] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12804] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12804] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12804] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12805 attached
 => {parent_tid=[12805]}, 88) = 12805
[pid 12804] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12804] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12804] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12805] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12805] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12805] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12805] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12804] <... futex resumed>)        = 0
[pid 12804] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12804] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12805] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12805] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12804] <... futex resumed>)        = 0
[pid 12804] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12804] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12805] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12805] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12804] <... futex resumed>)        = 0
[pid 12804] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12804] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12805] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12805] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12804] <... futex resumed>)        = 0
[pid 12804] exit_group(0)               = ?
[pid 12805] +++ exited with 0 +++
[pid 12804] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12804, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12806
./strace-static-x86_64: Process 12806 attached
[pid 12806] set_robust_list(0x5555874576a0, 24) = 0
[pid 12806] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12806] setpgid(0, 0)               = 0
[pid 12806] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12806] write(3, "1000", 4)         = 4
[pid 12806] close(3)                    = 0
[pid 12806] write(1, "executing program\n", 18executing program
) = 18
[pid 12806] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12806] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12806] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12806] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12806] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12806] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12806] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12807 attached
 <unfinished ...>
[pid 12807] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12807] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12807] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12806] <... clone3 resumed> => {parent_tid=[12807]}, 88) = 12807
[pid 12806] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12806] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12807] <... futex resumed>)        = 0
[pid 12807] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12807] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12807] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12806] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12806] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12807] <... futex resumed>)        = 0
[pid 12807] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12807] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12807] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12806] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12806] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12807] <... futex resumed>)        = 0
[pid 12806] <... futex resumed>)        = 1
[pid 12807] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12806] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12807] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12807] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12806] <... futex resumed>)        = 0
[pid 12806] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12807] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12806] <... futex resumed>)        = 0
[pid 12807] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12806] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12807] <... futex resumed>)        = 0
[pid 12806] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12807] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12806] exit_group(0)               = ?
[pid 12807] <... futex resumed>)        = ?
[pid 12807] +++ exited with 0 +++
[pid 12806] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12806, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12808
./strace-static-x86_64: Process 12808 attached
[pid 12808] set_robust_list(0x5555874576a0, 24) = 0
[pid 12808] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12808] setpgid(0, 0)               = 0
[pid 12808] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12808] write(3, "1000", 4)         = 4
[pid 12808] close(3)                    = 0
[pid 12808] write(1, "executing program\n", 18executing program
) = 18
[pid 12808] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12808] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12808] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12808] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12808] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12808] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12808] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12809 attached
 <unfinished ...>
[pid 12809] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12809] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12809] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12808] <... clone3 resumed> => {parent_tid=[12809]}, 88) = 12809
[pid 12808] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12808] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12809] <... futex resumed>)        = 0
[pid 12809] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12808] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12809] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12809] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12808] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12808] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12808] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12809] <... futex resumed>)        = 0
[pid 12809] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12809] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12808] <... futex resumed>)        = 0
[pid 12808] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12808] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12809] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12809] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12808] <... futex resumed>)        = 0
[pid 12808] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12808] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12809] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12809] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12808] <... futex resumed>)        = 0
[pid 12808] exit_group(0)               = ?
[pid 12809] +++ exited with 0 +++
[pid 12808] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12808, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12810
./strace-static-x86_64: Process 12810 attached
[pid 12810] set_robust_list(0x5555874576a0, 24) = 0
[pid 12810] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12810] setpgid(0, 0)               = 0
[pid 12810] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12810] write(3, "1000", 4)         = 4
[pid 12810] close(3executing program
)                    = 0
[pid 12810] write(1, "executing program\n", 18) = 18
[pid 12810] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12810] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12810] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12810] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12810] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12810] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12810] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12811 attached
 => {parent_tid=[12811]}, 88) = 12811
[pid 12810] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12810] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12810] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12811] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12811] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12811] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12811] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12811] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12810] <... futex resumed>)        = 0
[pid 12810] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12811] <... futex resumed>)        = 0
[pid 12811] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12811] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12811] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12810] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12810] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12811] <... futex resumed>)        = 0
[pid 12811] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12811] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12811] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12810] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12810] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12811] <... futex resumed>)        = 0
[pid 12811] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12811] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12811] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12810] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12810] exit_group(0)               = ?
[pid 12811] <... futex resumed>)        = ?
[pid 12811] +++ exited with 0 +++
[pid 12810] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12810, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12812 attached
, child_tidptr=0x555587457690) = 12812
[pid 12812] set_robust_list(0x5555874576a0, 24) = 0
[pid 12812] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12812] setpgid(0, 0)               = 0
[pid 12812] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12812] write(3, "1000", 4)         = 4
[pid 12812] close(3executing program
)                    = 0
[pid 12812] write(1, "executing program\n", 18) = 18
[pid 12812] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12812] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12812] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12812] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12812] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12812] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12812] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12813 attached
 => {parent_tid=[12813]}, 88) = 12813
[pid 12812] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12812] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12812] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12813] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12813] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12813] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12813] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12812] <... futex resumed>)        = 0
[pid 12812] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12812] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12813] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12813] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12812] <... futex resumed>)        = 0
[pid 12812] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12812] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12813] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12813] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12812] <... futex resumed>)        = 0
[pid 12812] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12812] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12813] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12813] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12812] <... futex resumed>)        = 0
[pid 12812] exit_group(0)               = ?
[pid 12813] +++ exited with 0 +++
[pid 12812] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12812, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12814
./strace-static-x86_64: Process 12814 attached
[pid 12814] set_robust_list(0x5555874576a0, 24) = 0
[pid 12814] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12814] setpgid(0, 0)               = 0
[pid 12814] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12814] write(3, "1000", 4)         = 4
[pid 12814] close(3)                    = 0
executing program
[pid 12814] write(1, "executing program\n", 18) = 18
[pid 12814] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12814] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12814] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12814] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12814] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12814] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12814] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12815 attached
 <unfinished ...>
[pid 12815] set_robust_list(0x7f3e7f5839a0, 24 <unfinished ...>
[pid 12814] <... clone3 resumed> => {parent_tid=[12815]}, 88) = 12815
[pid 12814] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12814] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12814] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12815] <... set_robust_list resumed>) = 0
[pid 12815] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12815] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12815] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12814] <... futex resumed>)        = 0
[pid 12814] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12814] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12815] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12815] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12814] <... futex resumed>)        = 0
[pid 12814] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12814] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12815] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12815] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12814] <... futex resumed>)        = 0
[pid 12814] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12814] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12815] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12815] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12814] <... futex resumed>)        = 0
[pid 12815] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12814] exit_group(0 <unfinished ...>
[pid 12815] <... futex resumed>)        = ?
[pid 12814] <... exit_group resumed>)   = ?
[pid 12815] +++ exited with 0 +++
[pid 12814] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12814, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587457690) = 12816
./strace-static-x86_64: Process 12816 attached
[pid 12816] set_robust_list(0x5555874576a0, 24) = 0
[pid 12816] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12816] setpgid(0, 0)               = 0
[pid 12816] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12816] write(3, "1000", 4)         = 4
[pid 12816] close(3)                    = 0
[pid 12816] write(1, "executing program\n", 18executing program
) = 18
[pid 12816] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12816] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12816] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12816] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12816] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12816] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12816] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0}./strace-static-x86_64: Process 12817 attached
 => {parent_tid=[12817]}, 88) = 12817
[pid 12817] set_robust_list(0x7f3e7f5839a0, 24) = 0
[pid 12817] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12817] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12816] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12816] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12817] <... futex resumed>)        = 0
[pid 12817] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12817] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12817] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12816] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12816] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12817] <... futex resumed>)        = 0
[pid 12817] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12817] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12817] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12816] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12816] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12817] <... futex resumed>)        = 0
[pid 12817] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12816] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12817] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12817] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12816] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12816] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12817] <... futex resumed>)        = 0
[pid 12817] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12817] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12817] futex(0x7f3e7f64c3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12816] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12816] exit_group(0)               = ?
[pid 12817] <... futex resumed>)        = ?
[pid 12817] +++ exited with 0 +++
[pid 12816] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12816, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12818 attached
, child_tidptr=0x555587457690) = 12818
[pid 12818] set_robust_list(0x5555874576a0, 24) = 0
[pid 12818] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12818] setpgid(0, 0)               = 0
[pid 12818] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12818] write(3, "1000", 4)         = 4
[pid 12818] close(3executing program
)                    = 0
[pid 12818] write(1, "executing program\n", 18) = 18
[pid 12818] futex(0x7f3e7f64c3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12818] rt_sigaction(SIGRT_1, {sa_handler=0x7f3e7f5e85a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3e7f5d9c20}, NULL, 8) = 0
[pid 12818] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12818] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3e7f563000
[pid 12818] mprotect(0x7f3e7f564000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12818] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12818] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3e7f583990, parent_tid=0x7f3e7f583990, exit_signal=0, stack=0x7f3e7f563000, stack_size=0x20300, tls=0x7f3e7f5836c0} => {parent_tid=[12819]}, 88) = 12819
[pid 12818] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12818] futex(0x7f3e7f64c3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12818] futex(0x7f3e7f64c3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12819 attached