./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor331784719

<...>
50] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11450] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11450] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11451 attached
 => {parent_tid=[11451]}, 88) = 11451
[pid 11451] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11450] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11451] <... set_robust_list resumed>) = 0
[pid 11450] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11451] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11450] <... futex resumed>)        = 0
[pid 11451] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11451] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11450] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11451] <... 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 11451] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11450] <... futex resumed>)        = 0
[pid 11450] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11450] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11451] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11451] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11450] <... futex resumed>)        = 0
[pid 11450] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11450] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11450] <... futex resumed>)        = 0
[pid 11450] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11450] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11451] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11451] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11450] <... futex resumed>)        = 0
[pid 11450] exit_group(0)               = ?
[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, child_tidptr=0x55558842d690) = 11452
./strace-static-x86_64: Process 11452 attached
[pid 11452] set_robust_list(0x55558842d6a0, 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(3executing program
)                    = 0
[pid 11452] write(1, "executing program\n", 18) = 18
[pid 11452] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11452] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11452] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11453 attached
 => {parent_tid=[11453]}, 88) = 11453
[pid 11453] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11452] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11453] <... set_robust_list resumed>) = 0
[pid 11452] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11453] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11452] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11453] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11452] <... 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(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11452] <... futex resumed>)        = 0
[pid 11452] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11452] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11453] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11453] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11452] <... futex resumed>)        = 0
[pid 11452] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11452] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11452] <... futex resumed>)        = 0
[pid 11452] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11452] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11453] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11453] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11452] <... futex resumed>)        = 0
[pid 11452] exit_group(0)               = ?
[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=0x55558842d690) = 11454
./strace-static-x86_64: Process 11454 attached
[pid 11454] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11454] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11454] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11455 attached
 => {parent_tid=[11455]}, 88) = 11455
[pid 11455] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11454] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11455] <... set_robust_list resumed>) = 0
[pid 11454] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11455] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11454] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11455] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11454] <... futex resumed>)        = 0
[pid 11455] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11454] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11455] <... 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 11455] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11454] <... futex resumed>)        = 0
[pid 11454] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11454] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11455] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11455] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11454] <... futex resumed>)        = 0
[pid 11454] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11454] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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 11455] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11454] <... futex resumed>)        = 0
[pid 11454] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11454] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11455] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11455] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11454] <... futex resumed>)        = 0
[pid 11455] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11454] exit_group(0)               = ?
[pid 11455] <... futex resumed>)        = ?
[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./strace-static-x86_64: Process 11456 attached
, child_tidptr=0x55558842d690) = 11456
[pid 11456] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11456] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11456] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11457 attached
 => {parent_tid=[11457]}, 88) = 11457
[pid 11457] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11457] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11457] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11456] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11456] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11457] <... futex resumed>)        = 0
[pid 11456] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11457] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11456] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11456] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11457] <... futex resumed>)        = 0
[pid 11457] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11457] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11457] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11456] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11456] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11457] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11457] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11456] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11456] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11457] <... futex resumed>)        = 0
[pid 11456] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11457] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11456] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11456] exit_group(0)               = ?
[pid 11457] <... futex resumed>)        = ?
[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, child_tidptr=0x55558842d690) = 11458
./strace-static-x86_64: Process 11458 attached
[pid 11458] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11458] prctl(PR_SET_PDEATHSIG, SIGKILL) = 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
executing program
[pid 11458] write(1, "executing program\n", 18) = 18
[pid 11458] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11458] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11458] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11459 attached
 => {parent_tid=[11459]}, 88) = 11459
[pid 11458] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11458] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11458] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11459] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11459] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11459] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11458] <... futex resumed>)        = 0
[pid 11458] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11458] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11459] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11459] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11458] <... futex resumed>)        = 0
[pid 11458] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11458] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11458] <... futex resumed>)        = 0
[pid 11458] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11458] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11458] <... futex resumed>)        = 0
[pid 11458] exit_group(0)               = ?
[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=0x55558842d690) = 11460
./strace-static-x86_64: Process 11460 attached
[pid 11460] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11460] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11460] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11461 attached
 => {parent_tid=[11461]}, 88) = 11461
[pid 11461] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11461] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11461] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11460] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11460] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11461] <... futex resumed>)        = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11461] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11460] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11460] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11461] <... futex resumed>)        = 0
[pid 11461] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11461] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11461] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11460] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11460] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11461] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11461] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11460] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11460] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11461] <... futex resumed>)        = 0
[pid 11461] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11461] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11461] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11460] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11460] exit_group(0)               = ?
[pid 11461] <... futex resumed>)        = ?
[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, child_tidptr=0x55558842d690) = 11462
./strace-static-x86_64: Process 11462 attached
[pid 11462] set_robust_list(0x55558842d6a0, 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(3executing program
)                    = 0
[pid 11462] write(1, "executing program\n", 18) = 18
[pid 11462] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11462] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11462] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11463 attached
 => {parent_tid=[11463]}, 88) = 11463
[pid 11462] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11462] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11462] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11463] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11462] <... futex resumed>)        = 0
[pid 11462] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11462] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11462] <... futex resumed>)        = 0
[pid 11462] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11462] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11462] <... futex resumed>)        = 0
[pid 11462] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11462] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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=0x55558842d690) = 11464
./strace-static-x86_64: Process 11464 attached
[pid 11464] set_robust_list(0x55558842d6a0, 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
[pid 11464] write(1, "executing program\n", 18executing program
) = 18
[pid 11464] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11464] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11464] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11465 attached
 => {parent_tid=[11465]}, 88) = 11465
[pid 11465] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11465] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11465] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11464] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11464] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11465] <... futex resumed>)        = 0
[pid 11465] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11464] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11465] <... 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 11465] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11464] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11465] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11464] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11465] <... futex resumed>)        = 0
[pid 11465] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11464] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11465] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11465] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11465] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11464] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11464] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11465] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11465] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11464] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11464] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11465] <... futex resumed>)        = 0
[pid 11465] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11464] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11465] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11465] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11465] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11464] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11464] exit_group(0)               = ?
[pid 11465] <... futex resumed>)        = ?
[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, child_tidptr=0x55558842d690) = 11466
./strace-static-x86_64: Process 11466 attached
[pid 11466] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11466] prctl(PR_SET_PDEATHSIG, SIGKILL) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11466] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11466] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11467 attached
 => {parent_tid=[11467]}, 88) = 11467
[pid 11466] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11466] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11466] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11467] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11467] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11467] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11466] <... futex resumed>)        = 0
[pid 11466] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11466] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11467] <... futex resumed>)        = 1
[pid 11467] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11467] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11466] <... futex resumed>)        = 0
[pid 11466] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11466] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11466] <... futex resumed>)        = 0
[pid 11466] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11466] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11466] <... futex resumed>)        = 0
[pid 11467] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11466] exit_group(0)               = ?
[pid 11467] <... futex resumed>)        = ?
[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=0x55558842d690) = 11468
./strace-static-x86_64: Process 11468 attached
[pid 11468] set_robust_list(0x55558842d6a0, 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
executing program
[pid 11468] close(3)                    = 0
[pid 11468] write(1, "executing program\n", 18) = 18
[pid 11468] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11468] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11468] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11469 attached
 => {parent_tid=[11469]}, 88) = 11469
[pid 11469] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11469] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11469] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11468] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11468] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11469] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11468] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11468] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11469] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11468] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11468] futex(0x7fee38f303e8, 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 11468] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11469] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11468] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11469] <... futex resumed>)        = 0
[pid 11468] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11469] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11468] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11469] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11469] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11468] <... futex resumed>)        = 0
[pid 11468] exit_group(0)               = ?
[pid 11469] +++ exited with 0 +++
[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=0x55558842d690) = 11470
./strace-static-x86_64: Process 11470 attached
[pid 11470] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11470] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11470] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11471 attached
 => {parent_tid=[11471]}, 88) = 11471
[pid 11471] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11471] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11471] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11470] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11470] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11471] <... futex resumed>)        = 0
[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 11470] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11471] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11471] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11470] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11470] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11471] <... futex resumed>)        = 0
[pid 11470] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11470] <... futex resumed>)        = 0
[pid 11471] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11470] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11470] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11471] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11471] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11470] <... futex resumed>)        = 0
[pid 11470] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11470] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11470] <... futex resumed>)        = 0
[pid 11471] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[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, child_tidptr=0x55558842d690) = 11472
./strace-static-x86_64: Process 11472 attached
[pid 11472] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11472] prctl(PR_SET_PDEATHSIG, SIGKILL) = 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
[pid 11472] write(1, "executing program\n", 18executing program
) = 18
[pid 11472] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11472] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11472] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11473 attached
 => {parent_tid=[11473]}, 88) = 11473
[pid 11473] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11473] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11473] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11472] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11472] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11473] <... futex resumed>)        = 0
[pid 11473] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11472] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11473] <... 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 11473] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11473] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11472] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11472] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11473] <... futex resumed>)        = 0
[pid 11473] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11473] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11473] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11472] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11472] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11473] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11473] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11472] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11472] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11473] <... futex resumed>)        = 0
[pid 11472] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11473] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11473] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11473] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11472] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11474
./strace-static-x86_64: Process 11474 attached
[pid 11474] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11474] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11474] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11475 attached
 <unfinished ...>
[pid 11475] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11475] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11475] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11474] <... clone3 resumed> => {parent_tid=[11475]}, 88) = 11475
[pid 11474] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11474] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11475] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11474] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11474] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11475] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11474] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11474] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11475] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11474] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11474] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11475] <... futex resumed>)        = 0
[pid 11475] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11475] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11475] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11474] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -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./strace-static-x86_64: Process 11476 attached
, child_tidptr=0x55558842d690) = 11476
[pid 11476] set_robust_list(0x55558842d6a0, 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", 4executing program
)         = 4
[pid 11476] close(3)                    = 0
[pid 11476] write(1, "executing program\n", 18) = 18
[pid 11476] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11476] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11476] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11477 attached
 <unfinished ...>
[pid 11477] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11477] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11477] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11476] <... clone3 resumed> => {parent_tid=[11477]}, 88) = 11477
[pid 11476] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11476] futex(0x7fee38f303e8, 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(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11477] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11476] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11476] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11477] <... futex resumed>)        = 0
[pid 11477] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11477] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11477] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11476] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11476] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11477] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11476] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11477] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11476] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11476] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11476] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11477] <... futex resumed>)        = 0
[pid 11477] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11477] futex(0x7fee38f303ec, 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=0x55558842d690) = 11478
./strace-static-x86_64: Process 11478 attached
[pid 11478] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11478] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11478] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11479 attached
 => {parent_tid=[11479]}, 88) = 11479
[pid 11478] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11478] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11478] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11479] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11479] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11479] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11478] <... futex resumed>)        = 0
[pid 11478] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11478] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11479] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11479] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11478] <... futex resumed>)        = 0
[pid 11478] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11478] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11479] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11479] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11478] <... futex resumed>)        = 0
[pid 11478] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11478] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11479] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11479] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11478] <... futex resumed>)        = 0
[pid 11478] exit_group(0)               = ?
[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=0x55558842d690) = 11480
./strace-static-x86_64: Process 11480 attached
[pid 11480] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11480] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11480] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11481 attached
 => {parent_tid=[11481]}, 88) = 11481
[pid 11481] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11481] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11481] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11480] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11480] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11481] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11480] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11480] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11481] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11480] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11480] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11481] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11480] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11480] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11481] <... futex resumed>)        = 0
[pid 11481] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11481] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11481] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11480] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -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=0x55558842d690) = 11482
./strace-static-x86_64: Process 11482 attached
[pid 11482] set_robust_list(0x55558842d6a0, 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
executing program
[pid 11482] write(1, "executing program\n", 18) = 18
[pid 11482] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11482] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11482] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11483]}, 88) = 11483
./strace-static-x86_64: Process 11483 attached
[pid 11483] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11483] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11483] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11482] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11482] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11483] <... futex resumed>)        = 0
[pid 11483] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11482] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11483] <... 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 11483] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11483] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11482] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11482] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11483] <... futex resumed>)        = 0
[pid 11483] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11483] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11483] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11482] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11482] futex(0x7fee38f303e8, 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 <unfinished ...>
[pid 11482] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11483] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11483] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11483] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11482] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11482] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11483] <... futex resumed>)        = 0
[pid 11482] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11483] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11483] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11483] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11482] <... futex resumed>)        = -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=0x55558842d690) = 11484
./strace-static-x86_64: Process 11484 attached
[pid 11484] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11484] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11484] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11485 attached
 <unfinished ...>
[pid 11485] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11485] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11485] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11484] <... clone3 resumed> => {parent_tid=[11485]}, 88) = 11485
[pid 11484] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11484] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11485] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11484] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11484] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11485] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11484] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11484] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11485] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11484] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11484] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11485] <... futex resumed>)        = 0
[pid 11485] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11485] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11485] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11484] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -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=0x55558842d690) = 11486
./strace-static-x86_64: Process 11486 attached
[pid 11486] set_robust_list(0x55558842d6a0, 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
[pid 11486] write(1, "executing program\n", 18executing program
) = 18
[pid 11486] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11486] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11486] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11487 attached
 <unfinished ...>
[pid 11487] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11487] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11487] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11486] <... clone3 resumed> => {parent_tid=[11487]}, 88) = 11487
[pid 11486] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11486] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11487] <... futex resumed>)        = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11487] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11486] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11486] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11487] <... futex resumed>)        = 0
[pid 11487] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11487] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11487] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11486] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11486] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11487] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11487] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11486] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11486] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11487] <... futex resumed>)        = 0
[pid 11487] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11487] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11487] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11486] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11486] exit_group(0)               = ?
[pid 11487] <... futex resumed>)        = ?
[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=0x55558842d690) = 11488
./strace-static-x86_64: Process 11488 attached
[pid 11488] set_robust_list(0x55558842d6a0, 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", 4executing program
)         = 4
[pid 11488] close(3)                    = 0
[pid 11488] write(1, "executing program\n", 18) = 18
[pid 11488] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11488] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11488] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11489 attached
 => {parent_tid=[11489]}, 88) = 11489
[pid 11488] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11489] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11488] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11489] <... set_robust_list resumed>) = 0
[pid 11488] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11489] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11488] <... futex resumed>)        = 0
[pid 11489] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11488] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11488] <... futex resumed>)        = 0
[pid 11488] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11488] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11488] <... futex resumed>)        = 0
[pid 11488] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11488] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11488] <... futex resumed>)        = 0
[pid 11488] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11488] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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, child_tidptr=0x55558842d690) = 11490
./strace-static-x86_64: Process 11490 attached
[pid 11490] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11490] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11490] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11491 attached
 <unfinished ...>
[pid 11491] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11490] <... clone3 resumed> => {parent_tid=[11491]}, 88) = 11491
[pid 11490] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11490] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11490] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11491] <... set_robust_list resumed>) = 0
[pid 11491] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11490] <... futex resumed>)        = 0
[pid 11490] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11490] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11491] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11491] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11490] <... futex resumed>)        = 0
[pid 11490] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11490] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11490] <... futex resumed>)        = 0
[pid 11490] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11490] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11491] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11491] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11490] <... futex resumed>)        = 0
[pid 11490] exit_group(0)               = ?
[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, child_tidptr=0x55558842d690) = 11493
./strace-static-x86_64: Process 11493 attached
[pid 11493] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11493] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11493] setpgid(0, 0)               = 0
[pid 11493] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11493] write(3, "1000", 4)         = 4
executing program
[pid 11493] close(3)                    = 0
[pid 11493] write(1, "executing program\n", 18) = 18
[pid 11493] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11493] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11493] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11493] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11493] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11493] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11493] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11494 attached
 => {parent_tid=[11494]}, 88) = 11494
[pid 11494] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11494] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11494] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11493] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11493] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11494] <... futex resumed>)        = 0
[pid 11493] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11494] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11494] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11493] <... futex resumed>)        = 0
[pid 11493] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11493] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11494] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11494] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11493] <... futex resumed>)        = 0
[pid 11493] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11493] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11494] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11494] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11493] <... futex resumed>)        = 0
[pid 11493] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11493] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11494] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11494] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11493] <... futex resumed>)        = 0
[pid 11493] exit_group(0 <unfinished ...>
[pid 11494] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11493] <... exit_group resumed>)   = ?
[pid 11494] <... futex resumed>)        = ?
[pid 11494] +++ exited with 0 +++
[pid 11493] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11493, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11495
./strace-static-x86_64: Process 11495 attached
[pid 11495] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11495] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11495] setpgid(0, 0)               = 0
[pid 11495] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11495] write(3, "1000", 4)         = 4
[pid 11495] close(3)                    = 0
[pid 11495] write(1, "executing program\n", 18executing program
) = 18
[pid 11495] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11495] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11495] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11495] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11495] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11495] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11495] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11496 attached
 => {parent_tid=[11496]}, 88) = 11496
[pid 11495] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11495] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11495] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11496] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11496] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11496] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11496] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11495] <... futex resumed>)        = 0
[pid 11495] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11495] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11496] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11496] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11495] <... futex resumed>)        = 0
[pid 11495] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11495] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11496] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11496] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11495] <... futex resumed>)        = 0
[pid 11496] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11495] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11495] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11496] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11496] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11496] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11495] <... futex resumed>)        = 0
[pid 11496] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11495] exit_group(0)               = ?
[pid 11496] <... futex resumed>)        = ?
[pid 11496] +++ exited with 0 +++
[pid 11495] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11495, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11497
./strace-static-x86_64: Process 11497 attached
[pid 11497] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11497] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11497] setpgid(0, 0)               = 0
[pid 11497] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11497] write(3, "1000", 4)         = 4
[pid 11497] close(3)                    = 0
[pid 11497] write(1, "executing program\n", 18executing program
) = 18
[pid 11497] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11497] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11497] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11497] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11497] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11497] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11497] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11498]}, 88) = 11498
[pid 11497] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11497] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11497] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11498 attached
 <unfinished ...>
[pid 11498] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11498] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11498] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11498] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11497] <... futex resumed>)        = 0
[pid 11497] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11497] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11498] <... futex resumed>)        = 1
[pid 11498] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11498] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11497] <... futex resumed>)        = 0
[pid 11497] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11497] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11498] <... futex resumed>)        = 1
[pid 11498] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11498] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11497] <... futex resumed>)        = 0
[pid 11497] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11497] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11498] <... futex resumed>)        = 1
[pid 11498] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11498] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11497] <... futex resumed>)        = 0
[pid 11497] exit_group(0)               = ?
[pid 11498] <... futex resumed>)        = ?
[pid 11498] +++ exited with 0 +++
[pid 11497] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11497, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11499
./strace-static-x86_64: Process 11499 attached
[pid 11499] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11499] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11499] setpgid(0, 0)               = 0
[pid 11499] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11499] write(3, "1000", 4)         = 4
[pid 11499] close(3)                    = 0
[pid 11499] write(1, "executing program\n", 18executing program
) = 18
[pid 11499] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11499] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11499] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11499] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11499] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11499] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11499] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11500 attached
 => {parent_tid=[11500]}, 88) = 11500
[pid 11500] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11500] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11500] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11499] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11499] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11499] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11500] <... futex resumed>)        = 0
[pid 11500] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11500] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11499] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11500] <... futex resumed>)        = 0
[pid 11500] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11499] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11500] <... futex resumed>)        = 0
[pid 11500] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11499] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11500] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11500] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11500] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11499] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11499] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11500] <... futex resumed>)        = 0
[pid 11500] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11499] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11500] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11500] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11499] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11500] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11499] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11500] <... futex resumed>)        = 0
[pid 11500] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11499] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11500] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11500] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11500] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11499] <... futex resumed>)        = 0
[pid 11499] exit_group(0)               = ?
[pid 11500] <... futex resumed>)        = ?
[pid 11500] +++ exited with 0 +++
[pid 11499] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11499, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11501
./strace-static-x86_64: Process 11501 attached
[pid 11501] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11501] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11501] setpgid(0, 0)               = 0
[pid 11501] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11501] write(3, "1000", 4)         = 4
[pid 11501] close(3executing program
)                    = 0
[pid 11501] write(1, "executing program\n", 18) = 18
[pid 11501] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11501] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11501] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11501] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11501] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11501] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11501] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11502 attached
 => {parent_tid=[11502]}, 88) = 11502
[pid 11501] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11501] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11501] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11502] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11502] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11502] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11502] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11501] <... futex resumed>)        = 0
[pid 11501] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11501] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11502] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11502] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11501] <... futex resumed>)        = 0
[pid 11501] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11501] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11502] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11502] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11501] <... futex resumed>)        = 0
[pid 11501] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11501] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11502] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11502] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11501] <... futex resumed>)        = 0
[pid 11501] exit_group(0)               = ?
[pid 11502] +++ exited with 0 +++
[pid 11501] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11501, si_uid=0, si_status=0, 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 11503 attached
, child_tidptr=0x55558842d690) = 11503
[pid 11503] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11503] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11503] setpgid(0, 0)               = 0
[pid 11503] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11503] write(3, "1000", 4)         = 4
[pid 11503] close(3)                    = 0
executing program
[pid 11503] write(1, "executing program\n", 18) = 18
[pid 11503] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11503] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11503] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11503] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11503] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11503] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11503] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11504]}, 88) = 11504
[pid 11503] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11503] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11503] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11504 attached
 <unfinished ...>
[pid 11504] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11504] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11504] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11504] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11503] <... futex resumed>)        = 0
[pid 11503] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11503] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11504] <... futex resumed>)        = 1
[pid 11504] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11504] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11503] <... futex resumed>)        = 0
[pid 11503] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11503] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11504] <... futex resumed>)        = 1
[pid 11504] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11504] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11503] <... futex resumed>)        = 0
[pid 11503] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11503] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11504] <... futex resumed>)        = 1
[pid 11504] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11504] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11503] <... futex resumed>)        = 0
[pid 11504] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11503] exit_group(0)               = ?
[pid 11504] <... futex resumed>)        = ?
[pid 11504] +++ exited with 0 +++
[pid 11503] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11503, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11505
./strace-static-x86_64: Process 11505 attached
[pid 11505] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11505] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11505] setpgid(0, 0)               = 0
[pid 11505] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11505] write(3, "1000", 4)         = 4
[pid 11505] close(3)                    = 0
[pid 11505] write(1, "executing program\n", 18executing program
) = 18
[pid 11505] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11505] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11505] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11505] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11505] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11505] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11505] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11506 attached
 => {parent_tid=[11506]}, 88) = 11506
[pid 11506] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11506] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11506] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11505] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11505] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11506] <... futex resumed>)        = 0
[pid 11506] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11506] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11506] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11505] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11505] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11506] <... futex resumed>)        = 0
[pid 11506] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11506] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11506] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11505] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11505] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11506] <... futex resumed>)        = 0
[pid 11506] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11506] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11506] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11505] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11505] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11506] <... futex resumed>)        = 0
[pid 11506] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11506] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11506] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11505] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11505] exit_group(0)               = ?
[pid 11506] <... futex resumed>)        = ?
[pid 11506] +++ exited with 0 +++
[pid 11505] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11505, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11507
./strace-static-x86_64: Process 11507 attached
[pid 11507] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11507] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11507] setpgid(0, 0)               = 0
[pid 11507] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11507] write(3, "1000", 4)         = 4
[pid 11507] close(3)                    = 0
[pid 11507] write(1, "executing program\n", 18executing program
) = 18
[pid 11507] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11507] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11507] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11507] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11507] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11507] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11507] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11508 attached
 => {parent_tid=[11508]}, 88) = 11508
[pid 11507] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11507] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11507] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11508] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11508] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11508] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11508] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11507] <... futex resumed>)        = 0
[pid 11507] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11507] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11508] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11508] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11507] <... futex resumed>)        = 0
[pid 11507] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11507] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11508] 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11507] <... futex resumed>)        = 0
[pid 11507] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11507] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11508] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11508] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11507] <... futex resumed>)        = 0
[pid 11507] exit_group(0)               = ?
[pid 11508] +++ exited with 0 +++
[pid 11507] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11507, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11509
./strace-static-x86_64: Process 11509 attached
[pid 11509] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11509] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11509] setpgid(0, 0)               = 0
[pid 11509] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11509] write(3, "1000", 4)         = 4
[pid 11509] close(3executing program
)                    = 0
[pid 11509] write(1, "executing program\n", 18) = 18
[pid 11509] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11509] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11509] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11509] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11509] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11509] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11509] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11510 attached
 => {parent_tid=[11510]}, 88) = 11510
[pid 11509] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11509] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11509] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11510] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11510] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11510] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11510] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11509] <... futex resumed>)        = 0
[pid 11509] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11509] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11510] <... futex resumed>)        = 1
[pid 11510] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11510] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11509] <... futex resumed>)        = 0
[pid 11509] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11509] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11510] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11510] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11509] <... futex resumed>)        = 0
[pid 11509] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11509] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11510] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11510] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11509] <... futex resumed>)        = 0
[pid 11509] exit_group(0)               = ?
[pid 11510] +++ exited with 0 +++
[pid 11509] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11509, si_uid=0, si_status=0, 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 11511 attached
, child_tidptr=0x55558842d690) = 11511
[pid 11511] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11511] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11511] setpgid(0, 0)               = 0
[pid 11511] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11511] write(3, "1000", 4)         = 4
[pid 11511] close(3)                    = 0
[pid 11511] write(1, "executing program\n", 18executing program
) = 18
[pid 11511] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11511] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11511] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11511] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11511] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11511] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11511] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11512 attached
 => {parent_tid=[11512]}, 88) = 11512
[pid 11511] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11511] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11511] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11512] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11512] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11512] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11512] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11511] <... futex resumed>)        = 0
[pid 11511] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11511] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11512] <... futex resumed>)        = 1
[pid 11512] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11512] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11511] <... futex resumed>)        = 0
[pid 11511] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11511] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11512] <... futex resumed>)        = 1
[pid 11512] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11512] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11511] <... futex resumed>)        = 0
[pid 11511] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11511] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11512] <... futex resumed>)        = 1
[pid 11512] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11512] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11511] <... futex resumed>)        = 0
[pid 11511] exit_group(0)               = ?
[pid 11512] +++ exited with 0 +++
[pid 11511] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11511, si_uid=0, si_status=0, 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 11513 attached
, child_tidptr=0x55558842d690) = 11513
[pid 11513] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11513] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11513] setpgid(0, 0)               = 0
[pid 11513] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11513] write(3, "1000", 4)         = 4
[pid 11513] close(3)                    = 0
[pid 11513] write(1, "executing program\n", 18executing program
) = 18
[pid 11513] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11513] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11513] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11513] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11513] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11513] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11513] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11514]}, 88) = 11514
[pid 11513] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11513] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11513] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11514 attached
 <unfinished ...>
[pid 11514] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11514] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11514] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11514] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11513] <... futex resumed>)        = 0
[pid 11513] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11513] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11514] <... futex resumed>)        = 1
[pid 11514] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11514] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11513] <... futex resumed>)        = 0
[pid 11513] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11513] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11514] <... futex resumed>)        = 1
[pid 11514] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11514] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11513] <... futex resumed>)        = 0
[pid 11513] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11513] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11514] <... futex resumed>)        = 1
[pid 11514] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11514] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11513] <... futex resumed>)        = 0
[pid 11513] exit_group(0)               = ?
[pid 11514] <... futex resumed>)        = ?
[pid 11514] +++ exited with 0 +++
[pid 11513] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11513, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11515
./strace-static-x86_64: Process 11515 attached
[pid 11515] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11515] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11515] setpgid(0, 0)               = 0
[pid 11515] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11515] write(3, "1000", 4)         = 4
[pid 11515] close(3)                    = 0
executing program
[pid 11515] write(1, "executing program\n", 18) = 18
[pid 11515] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11515] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11515] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11515] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11515] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11515] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11515] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11516 attached
 => {parent_tid=[11516]}, 88) = 11516
[pid 11516] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11516] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11516] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11515] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11515] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11516] <... futex resumed>)        = 0
[pid 11516] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11516] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11516] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11515] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11515] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11516] <... futex resumed>)        = 0
[pid 11515] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11516] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11516] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11515] <... futex resumed>)        = 0
[pid 11516] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11515] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11516] <... futex resumed>)        = 0
[pid 11515] <... futex resumed>)        = 1
[pid 11516] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11515] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11516] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11516] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11515] <... futex resumed>)        = 0
[pid 11515] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11515] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11516] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11516] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11516] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11515] <... futex resumed>)        = 0
[pid 11515] exit_group(0)               = ?
[pid 11516] <... futex resumed>)        = ?
[pid 11516] +++ exited with 0 +++
[pid 11515] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11515, si_uid=0, si_status=0, 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 11517 attached
, child_tidptr=0x55558842d690) = 11517
[pid 11517] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11517] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11517] setpgid(0, 0)               = 0
[pid 11517] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11517] write(3, "1000", 4)         = 4
[pid 11517] close(3)                    = 0
[pid 11517] write(1, "executing program\n", 18executing program
) = 18
[pid 11517] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11517] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11517] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11517] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11517] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11517] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11517] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11518 attached
 <unfinished ...>
[pid 11518] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11518] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11518] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11517] <... clone3 resumed> => {parent_tid=[11518]}, 88) = 11518
[pid 11517] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11517] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11518] <... futex resumed>)        = 0
[pid 11518] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11518] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11518] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11517] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11517] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11518] <... futex resumed>)        = 0
[pid 11518] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11517] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11518] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11518] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11518] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11517] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11517] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11518] <... futex resumed>)        = 0
[pid 11518] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11518] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11518] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11517] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11517] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11518] <... futex resumed>)        = 0
[pid 11517] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11518] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11518] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11518] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11517] <... futex resumed>)        = 0
[pid 11517] exit_group(0)               = ?
[pid 11518] <... futex resumed>)        = ?
[pid 11518] +++ exited with 0 +++
[pid 11517] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11517, 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=0x55558842d690) = 11519
./strace-static-x86_64: Process 11519 attached
[pid 11519] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11519] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11519] setpgid(0, 0)               = 0
[pid 11519] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11519] write(3, "1000", 4)         = 4
[pid 11519] close(3)                    = 0
[pid 11519] write(1, "executing program\n", 18executing program
) = 18
[pid 11519] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11519] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11519] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11519] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11519] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11519] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11519] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11520 attached
 => {parent_tid=[11520]}, 88) = 11520
[pid 11520] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11520] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11520] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11519] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11519] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11520] <... futex resumed>)        = 0
[pid 11520] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11520] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11520] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11519] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11519] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11520] <... futex resumed>)        = 0
[pid 11520] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11520] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11520] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11519] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11519] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11520] <... futex resumed>)        = 0
[pid 11520] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11520] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11520] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11519] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11519] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11520] <... futex resumed>)        = 0
[pid 11519] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11520] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11520] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11520] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11519] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11519] exit_group(0)               = ?
[pid 11520] <... futex resumed>)        = ?
[pid 11520] +++ exited with 0 +++
[pid 11519] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11519, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11521
./strace-static-x86_64: Process 11521 attached
[pid 11521] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11521] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11521] setpgid(0, 0)               = 0
[pid 11521] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11521] write(3, "1000", 4)         = 4
[pid 11521] close(3)                    = 0
[pid 11521] write(1, "executing program\n", 18executing program
) = 18
[pid 11521] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11521] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11521] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11521] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11521] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11521] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11521] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11522 attached
 => {parent_tid=[11522]}, 88) = 11522
[pid 11522] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11522] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11522] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11521] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11521] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11522] <... futex resumed>)        = 0
[pid 11522] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11522] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11522] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11521] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11521] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11522] <... futex resumed>)        = 0
[pid 11522] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11522] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11522] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11521] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11521] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11522] <... futex resumed>)        = 0
[pid 11522] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11522] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11522] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11521] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11521] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11521] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11522] <... futex resumed>)        = 0
[pid 11522] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11522] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11521] <... futex resumed>)        = 0
[pid 11521] exit_group(0 <unfinished ...>
[pid 11522] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11521] <... exit_group resumed>)   = ?
[pid 11522] <... futex resumed>)        = ?
[pid 11522] +++ exited with 0 +++
[pid 11521] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11521, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11523
./strace-static-x86_64: Process 11523 attached
[pid 11523] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11523] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11523] setpgid(0, 0)               = 0
[pid 11523] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11523] write(3, "1000", 4)         = 4
[pid 11523] close(3)                    = 0
executing program
[pid 11523] write(1, "executing program\n", 18) = 18
[pid 11523] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11523] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11523] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11523] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11523] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11523] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11523] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11524 attached
 => {parent_tid=[11524]}, 88) = 11524
[pid 11524] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11523] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11524] <... set_robust_list resumed>) = 0
[pid 11523] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11524] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11523] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11524] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11523] <... futex resumed>)        = 0
[pid 11524] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11524] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11524] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11523] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11523] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11524] <... futex resumed>)        = 0
[pid 11524] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11524] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11524] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11523] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11523] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11524] <... futex resumed>)        = 0
[pid 11524] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11524] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11524] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11523] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11523] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11524] <... futex resumed>)        = 0
[pid 11524] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11524] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11524] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11523] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11523] exit_group(0)               = ?
[pid 11524] <... futex resumed>)        = ?
[pid 11524] +++ exited with 0 +++
[pid 11523] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11523, si_uid=0, si_status=0, 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 11525 attached
, child_tidptr=0x55558842d690) = 11525
[pid 11525] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11525] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11525] setpgid(0, 0)               = 0
[pid 11525] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11525] write(3, "1000", 4)         = 4
[pid 11525] close(3)                    = 0
[pid 11525] write(1, "executing program\n", 18executing program
) = 18
[pid 11525] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11525] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11525] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11525] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11525] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11525] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11525] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11526 attached
 => {parent_tid=[11526]}, 88) = 11526
[pid 11526] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11525] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11526] <... set_robust_list resumed>) = 0
[pid 11525] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11526] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11525] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11526] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11525] <... futex resumed>)        = 0
[pid 11525] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11526] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11526] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11525] <... futex resumed>)        = 0
[pid 11526] <... futex resumed>)        = 1
[pid 11525] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11526] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11525] <... futex resumed>)        = 0
[pid 11525] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11526] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11526] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11525] <... futex resumed>)        = 0
[pid 11526] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11525] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11526] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11525] <... futex resumed>)        = 0
[pid 11526] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11525] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11526] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11526] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11525] <... futex resumed>)        = 0
[pid 11526] <... futex resumed>)        = 1
[pid 11525] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11525] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11526] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11526] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11525] <... futex resumed>)        = 0
[pid 11526] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11525] exit_group(0)               = ?
[pid 11526] <... futex resumed>)        = ?
[pid 11526] +++ exited with 0 +++
[pid 11525] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11525, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11527
./strace-static-x86_64: Process 11527 attached
[pid 11527] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11527] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11527] setpgid(0, 0)               = 0
[pid 11527] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11527] write(3, "1000", 4)         = 4
[pid 11527] close(3)                    = 0
[pid 11527] write(1, "executing program\n", 18executing program
) = 18
[pid 11527] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11527] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11527] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11527] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11527] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11527] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11527] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11528 attached
 => {parent_tid=[11528]}, 88) = 11528
[pid 11528] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11527] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11528] <... set_robust_list resumed>) = 0
[pid 11527] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11528] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11527] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11528] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11527] <... futex resumed>)        = 0
[pid 11528] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11527] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11528] <... 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 11528] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11527] <... futex resumed>)        = 0
[pid 11527] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11527] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11528] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11528] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11527] <... futex resumed>)        = 0
[pid 11527] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11527] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11528] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11528] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11527] <... futex resumed>)        = 0
[pid 11527] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11527] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11528] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11528] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11527] <... futex resumed>)        = 0
[pid 11527] exit_group(0)               = ?
[pid 11528] +++ exited with 0 +++
[pid 11527] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11527, si_uid=0, si_status=0, 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 11529 attached
 <unfinished ...>
[pid 11529] set_robust_list(0x55558842d6a0, 24) = 0
[pid   555] <... clone resumed>, child_tidptr=0x55558842d690) = 11529
[pid 11529] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11529] setpgid(0, 0)               = 0
[pid 11529] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11529] write(3, "1000", 4)         = 4
[pid 11529] close(3)                    = 0
[pid 11529] write(1, "executing program\n", 18executing program
) = 18
[pid 11529] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11529] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11529] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11529] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11529] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11529] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11529] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11530 attached
 <unfinished ...>
[pid 11530] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11530] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11530] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11529] <... clone3 resumed> => {parent_tid=[11530]}, 88) = 11530
[pid 11529] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11529] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11530] <... futex resumed>)        = 0
[pid 11530] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11530] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11530] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11529] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11529] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11530] <... futex resumed>)        = 0
[pid 11530] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11530] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11530] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11529] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11529] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11530] <... futex resumed>)        = 0
[pid 11530] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11530] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11530] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11529] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11529] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11530] <... futex resumed>)        = 0
[pid 11529] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11530] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11530] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11530] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11529] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11529] exit_group(0)               = ?
[pid 11530] <... futex resumed>)        = ?
[pid 11530] +++ exited with 0 +++
[pid 11529] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11529, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11531
./strace-static-x86_64: Process 11531 attached
[pid 11531] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11531] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11531] setpgid(0, 0)               = 0
[pid 11531] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11531] write(3, "1000", 4)         = 4
[pid 11531] close(3)                    = 0
[pid 11531] write(1, "executing program\n", 18executing program
) = 18
[pid 11531] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11531] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11531] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11531] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11531] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11531] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11531] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11532 attached
 => {parent_tid=[11532]}, 88) = 11532
[pid 11532] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11532] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11532] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11531] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11531] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11532] <... futex resumed>)        = 0
[pid 11532] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11531] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11532] <... 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 11532] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11531] <... futex resumed>)        = 0
[pid 11531] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11532] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11531] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11532] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11532] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11531] <... futex resumed>)        = 0
[pid 11531] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11531] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11532] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11532] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11531] <... futex resumed>)        = 0
[pid 11531] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11532] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11531] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11532] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11532] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11531] <... futex resumed>)        = 0
[pid 11531] exit_group(0)               = ?
[pid 11532] +++ exited with 0 +++
[pid 11531] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11531, si_uid=0, si_status=0, 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 11533 attached
, child_tidptr=0x55558842d690) = 11533
[pid 11533] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11533] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11533] setpgid(0, 0)               = 0
[pid 11533] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11533] write(3, "1000", 4)         = 4
[pid 11533] close(3)                    = 0
[pid 11533] write(1, "executing program\n", 18executing program
) = 18
[pid 11533] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11533] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11533] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11533] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11533] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11533] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11533] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11534]}, 88) = 11534
[pid 11533] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11533] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11533] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11534 attached
 <unfinished ...>
[pid 11534] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11534] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11534] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11534] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11533] <... futex resumed>)        = 0
[pid 11533] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11533] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11534] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11534] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11533] <... futex resumed>)        = 0
[pid 11533] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11533] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11534] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11534] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11533] <... futex resumed>)        = 0
[pid 11533] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11533] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11534] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11534] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11533] <... futex resumed>)        = 0
[pid 11533] exit_group(0)               = ?
[pid 11534] +++ exited with 0 +++
[pid 11533] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11533, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11535
./strace-static-x86_64: Process 11535 attached
[pid 11535] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11535] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11535] setpgid(0, 0)               = 0
[pid 11535] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11535] write(3, "1000", 4)         = 4
[pid 11535] close(3)                    = 0
[pid 11535] write(1, "executing program\n", 18executing program
) = 18
[pid 11535] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11535] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11535] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11535] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11535] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11535] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11535] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11536 attached
 => {parent_tid=[11536]}, 88) = 11536
[pid 11536] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11536] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11536] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11535] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11535] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11536] <... futex resumed>)        = 0
[pid 11536] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11536] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11536] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11535] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11535] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11536] <... futex resumed>)        = 0
[pid 11536] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11536] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11536] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11535] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11535] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11536] <... futex resumed>)        = 0
[pid 11536] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11536] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11536] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11535] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11535] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11536] <... futex resumed>)        = 0
[pid 11536] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11536] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11536] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11535] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11535] exit_group(0)               = ?
[pid 11536] <... futex resumed>)        = ?
[pid 11536] +++ exited with 0 +++
[pid 11535] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11535, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11537
./strace-static-x86_64: Process 11537 attached
[pid 11537] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11537] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11537] setpgid(0, 0)               = 0
[pid 11537] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11537] write(3, "1000", 4)         = 4
[pid 11537] close(3)                    = 0
executing program
[pid 11537] write(1, "executing program\n", 18) = 18
[pid 11537] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11537] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11537] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11537] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11537] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11537] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11537] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11538 attached
 => {parent_tid=[11538]}, 88) = 11538
[pid 11538] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11538] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11538] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11537] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11537] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11538] <... futex resumed>)        = 0
[pid 11538] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11538] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11538] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11537] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11537] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11538] <... futex resumed>)        = 0
[pid 11538] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11538] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11538] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11537] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11537] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11538] <... futex resumed>)        = 0
[pid 11538] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11538] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11538] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11537] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11537] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11538] <... futex resumed>)        = 0
[pid 11538] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11538] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11538] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11537] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11537] exit_group(0)               = ?
[pid 11538] <... futex resumed>)        = ?
[pid 11538] +++ exited with 0 +++
[pid 11537] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11537, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11539
./strace-static-x86_64: Process 11539 attached
[pid 11539] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11539] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11539] setpgid(0, 0)               = 0
[pid 11539] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11539] write(3, "1000", 4)         = 4
[pid 11539] close(3)                    = 0
[pid 11539] write(1, "executing program\n", 18executing program
) = 18
[pid 11539] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11539] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11539] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11539] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11539] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11539] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11539] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11540 attached
 <unfinished ...>
[pid 11540] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11540] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11540] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11539] <... clone3 resumed> => {parent_tid=[11540]}, 88) = 11540
[pid 11539] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11539] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11540] <... futex resumed>)        = 0
[pid 11540] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11540] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11540] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11539] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11539] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11540] <... futex resumed>)        = 0
[pid 11540] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11540] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11540] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11539] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11539] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11540] <... futex resumed>)        = 0
[pid 11540] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11540] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11540] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11539] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11539] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11540] <... futex resumed>)        = 0
[pid 11540] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11540] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11540] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11539] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11539] exit_group(0)               = ?
[pid 11540] <... futex resumed>)        = ?
[pid 11540] +++ exited with 0 +++
[pid 11539] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11539, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11541
./strace-static-x86_64: Process 11541 attached
[pid 11541] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11541] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11541] setpgid(0, 0)               = 0
[pid 11541] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11541] write(3, "1000", 4)         = 4
[pid 11541] close(3)                    = 0
executing program
[pid 11541] write(1, "executing program\n", 18) = 18
[pid 11541] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11541] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11541] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11541] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11541] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11541] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11541] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11542 attached
 => {parent_tid=[11542]}, 88) = 11542
[pid 11541] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11541] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11541] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11542] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11542] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11542] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11542] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11542] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11541] <... futex resumed>)        = 0
[pid 11541] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11542] <... futex resumed>)        = 0
[pid 11542] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11542] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11542] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11541] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11541] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11542] <... futex resumed>)        = 0
[pid 11542] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11542] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11542] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11541] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11541] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11542] <... futex resumed>)        = 0
[pid 11542] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11542] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11542] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11541] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11541] exit_group(0)               = ?
[pid 11542] <... futex resumed>)        = ?
[pid 11542] +++ exited with 0 +++
[pid 11541] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11541, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11543
./strace-static-x86_64: Process 11543 attached
[pid 11543] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11543] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11543] setpgid(0, 0)               = 0
[pid 11543] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11543] write(3, "1000", 4)         = 4
[pid 11543] close(3)                    = 0
[pid 11543] write(1, "executing program\n", 18) = 18
executing program
[pid 11543] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11543] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11543] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11543] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11543] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11543] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11543] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11544]}, 88) = 11544
[pid 11543] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11543] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11543] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11544 attached
 <unfinished ...>
[pid 11544] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11544] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11544] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11544] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11543] <... futex resumed>)        = 0
[pid 11543] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11543] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11544] <... futex resumed>)        = 1
[pid 11544] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11544] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11543] <... futex resumed>)        = 0
[pid 11543] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11543] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11544] <... futex resumed>)        = 1
[pid 11544] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11544] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11543] <... futex resumed>)        = 0
[pid 11543] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11543] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11544] <... futex resumed>)        = 1
[pid 11544] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11544] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11543] <... futex resumed>)        = 0
[pid 11543] exit_group(0)               = ?
[pid 11544] <... futex resumed>)        = ?
[pid 11544] +++ exited with 0 +++
[pid 11543] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11543, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11545
./strace-static-x86_64: Process 11545 attached
[pid 11545] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11545] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11545] setpgid(0, 0)               = 0
[pid 11545] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11545] write(3, "1000", 4)         = 4
executing program
[pid 11545] close(3)                    = 0
[pid 11545] write(1, "executing program\n", 18) = 18
[pid 11545] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11545] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11545] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11545] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11545] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11545] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11545] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11546]}, 88) = 11546
[pid 11545] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11545] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11545] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11546 attached
 <unfinished ...>
[pid 11546] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11546] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11546] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11546] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11545] <... futex resumed>)        = 0
[pid 11545] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11545] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11546] <... futex resumed>)        = 1
[pid 11546] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11546] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11545] <... futex resumed>)        = 0
[pid 11545] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11545] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11546] <... futex resumed>)        = 1
[pid 11546] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11546] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11545] <... futex resumed>)        = 0
[pid 11545] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11545] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11546] <... futex resumed>)        = 1
[pid 11546] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11546] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11545] <... futex resumed>)        = 0
[pid 11545] exit_group(0)               = ?
[pid 11546] <... futex resumed>)        = ?
[pid 11546] +++ exited with 0 +++
[pid 11545] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11545, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11547
./strace-static-x86_64: Process 11547 attached
[pid 11547] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11547] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11547] setpgid(0, 0)               = 0
[pid 11547] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11547] write(3, "1000", 4)         = 4
[pid 11547] close(3)                    = 0
[pid 11547] write(1, "executing program\n", 18executing program
) = 18
[pid 11547] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11547] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11547] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11547] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11547] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11547] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11547] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11548]}, 88) = 11548
./strace-static-x86_64: Process 11548 attached
[pid 11548] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11548] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11548] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11547] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11547] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11548] <... futex resumed>)        = 0
[pid 11548] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11547] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11548] <... 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 11548] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11548] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11547] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11547] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11548] <... futex resumed>)        = 0
[pid 11548] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11548] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11548] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11547] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11547] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11548] <... futex resumed>)        = 0
[pid 11548] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11548] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11548] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11547] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11547] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11548] <... futex resumed>)        = 0
[pid 11548] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11548] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11548] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11547] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11547] exit_group(0)               = ?
[pid 11548] <... futex resumed>)        = ?
[pid 11548] +++ exited with 0 +++
[pid 11547] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11547, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11549
./strace-static-x86_64: Process 11549 attached
[pid 11549] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11549] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11549] setpgid(0, 0)               = 0
[pid 11549] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11549] write(3, "1000", 4)         = 4
executing program
[pid 11549] close(3)                    = 0
[pid 11549] write(1, "executing program\n", 18) = 18
[pid 11549] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11549] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11549] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11549] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11549] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11549] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11549] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11550]}, 88) = 11550
[pid 11549] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11549] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11549] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11550 attached
 <unfinished ...>
[pid 11550] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11550] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11550] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11550] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11549] <... futex resumed>)        = 0
[pid 11549] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11549] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11550] <... futex resumed>)        = 1
[pid 11550] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11550] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11549] <... futex resumed>)        = 0
[pid 11549] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11549] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11550] <... futex resumed>)        = 1
[pid 11550] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11550] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11549] <... futex resumed>)        = 0
[pid 11549] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11549] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11550] <... futex resumed>)        = 1
[pid 11550] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11550] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11549] <... futex resumed>)        = 0
[pid 11549] exit_group(0)               = ?
[pid 11550] <... futex resumed>)        = ?
[pid 11550] +++ exited with 0 +++
[pid 11549] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11549, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11551
./strace-static-x86_64: Process 11551 attached
[pid 11551] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11551] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11551] setpgid(0, 0)               = 0
[pid 11551] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11551] write(3, "1000", 4)         = 4
[pid 11551] close(3)                    = 0
[pid 11551] write(1, "executing program\n", 18executing program
) = 18
[pid 11551] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11551] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11551] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11551] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11551] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11551] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11551] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11552 attached
 => {parent_tid=[11552]}, 88) = 11552
[pid 11552] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11552] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11552] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11551] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11551] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11552] <... futex resumed>)        = 0
[pid 11551] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11552] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11552] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11551] <... futex resumed>)        = 0
[pid 11551] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11551] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11552] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11552] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11551] <... futex resumed>)        = 0
[pid 11551] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11551] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11552] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11552] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11551] <... futex resumed>)        = 0
[pid 11551] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11551] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11552] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11552] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11552] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11551] <... futex resumed>)        = 0
[pid 11551] exit_group(0)               = ?
[pid 11552] <... futex resumed>)        = ?
[pid 11552] +++ exited with 0 +++
[pid 11551] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11551, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11553
./strace-static-x86_64: Process 11553 attached
[pid 11553] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11553] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11553] setpgid(0, 0)               = 0
[pid 11553] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11553] write(3, "1000", 4)         = 4
[pid 11553] close(3)                    = 0
[pid 11553] write(1, "executing program\n", 18executing program
) = 18
[pid 11553] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11553] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11553] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11553] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11553] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11553] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11553] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11554 attached
 <unfinished ...>
[pid 11554] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11554] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11554] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11553] <... clone3 resumed> => {parent_tid=[11554]}, 88) = 11554
[pid 11553] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11553] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11554] <... futex resumed>)        = 0
[pid 11554] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11554] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11554] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11553] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11553] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11554] <... futex resumed>)        = 0
[pid 11554] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11554] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11554] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11553] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11553] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11554] <... futex resumed>)        = 0
[pid 11554] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11554] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11554] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11553] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11553] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11554] <... futex resumed>)        = 0
[pid 11554] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11554] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11554] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11553] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11553] exit_group(0)               = ?
[pid 11554] <... futex resumed>)        = ?
[pid 11554] +++ exited with 0 +++
[pid 11553] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11553, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11555
./strace-static-x86_64: Process 11555 attached
[pid 11555] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11555] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11555] setpgid(0, 0)               = 0
[pid 11555] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11555] write(3, "1000", 4)         = 4
[pid 11555] close(3)                    = 0
[pid 11555] write(1, "executing program\n", 18executing program
) = 18
[pid 11555] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11555] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11555] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11555] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11555] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11555] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11555] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11556 attached
 => {parent_tid=[11556]}, 88) = 11556
[pid 11555] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11555] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11555] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11556] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11556] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11556] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11556] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11555] <... futex resumed>)        = 0
[pid 11555] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11555] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11556] <... futex resumed>)        = 1
[pid 11556] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11556] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11555] <... futex resumed>)        = 0
[pid 11555] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11555] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11556] <... futex resumed>)        = 1
[pid 11556] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11556] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11555] <... futex resumed>)        = 0
[pid 11555] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11555] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11556] <... futex resumed>)        = 1
[pid 11556] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11556] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11555] <... futex resumed>)        = 0
[pid 11555] exit_group(0)               = ?
[pid 11556] <... futex resumed>)        = ?
[pid 11556] +++ exited with 0 +++
[pid 11555] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11555, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11557
./strace-static-x86_64: Process 11557 attached
[pid 11557] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11557] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11557] setpgid(0, 0)               = 0
[pid 11557] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11557] write(3, "1000", 4)         = 4
[pid 11557] close(3)                    = 0
[pid 11557] write(1, "executing program\n", 18executing program
) = 18
[pid 11557] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11557] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11557] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11557] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11557] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11557] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11557] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11558 attached
 => {parent_tid=[11558]}, 88) = 11558
[pid 11558] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11558] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11558] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11557] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11557] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11558] <... futex resumed>)        = 0
[pid 11558] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11558] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11558] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11557] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11557] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11558] <... futex resumed>)        = 0
[pid 11558] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11558] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11558] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11557] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11557] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11558] <... futex resumed>)        = 0
[pid 11558] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11558] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11558] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11557] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11557] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11558] <... futex resumed>)        = 0
[pid 11558] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11558] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11558] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11557] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11557] exit_group(0)               = ?
[pid 11558] <... futex resumed>)        = ?
[pid 11558] +++ exited with 0 +++
[pid 11557] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11557, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11559
./strace-static-x86_64: Process 11559 attached
[pid 11559] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11559] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11559] setpgid(0, 0)               = 0
[pid 11559] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11559] write(3, "1000", 4)         = 4
executing program
[pid 11559] close(3)                    = 0
[pid 11559] write(1, "executing program\n", 18) = 18
[pid 11559] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11559] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11559] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11559] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11559] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11559] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11559] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11560 attached
 <unfinished ...>
[pid 11560] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11559] <... clone3 resumed> => {parent_tid=[11560]}, 88) = 11560
[pid 11560] <... set_robust_list resumed>) = 0
[pid 11559] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11560] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11559] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11560] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11559] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11560] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11559] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11560] <... 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11559] <... futex resumed>)        = 0
[pid 11560] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11559] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11560] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11559] <... futex resumed>)        = 0
[pid 11560] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11559] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11560] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11560] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11559] <... futex resumed>)        = 0
[pid 11559] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11559] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11560] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11560] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11559] <... futex resumed>)        = 0
[pid 11559] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11559] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11560] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11560] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11559] <... futex resumed>)        = 0
[pid 11559] exit_group(0)               = ?
[pid 11560] +++ exited with 0 +++
[pid 11559] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11559, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11561
./strace-static-x86_64: Process 11561 attached
[pid 11561] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11561] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11561] setpgid(0, 0)               = 0
[pid 11561] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11561] write(3, "1000", 4)         = 4
[pid 11561] close(3)                    = 0
[pid 11561] write(1, "executing program\n", 18executing program
) = 18
[pid 11561] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11561] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11561] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11561] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11561] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11561] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11561] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11562 attached
 => {parent_tid=[11562]}, 88) = 11562
[pid 11562] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11562] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11562] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11561] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11561] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11562] <... futex resumed>)        = 0
[pid 11562] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11562] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11562] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11561] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11561] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11562] <... futex resumed>)        = 0
[pid 11562] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11562] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11562] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11561] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11561] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11562] <... futex resumed>)        = 0
[pid 11562] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11562] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11562] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11561] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11561] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11562] <... futex resumed>)        = 0
[pid 11562] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11562] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11562] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11561] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11561] exit_group(0)               = ?
[pid 11562] <... futex resumed>)        = ?
[pid 11562] +++ exited with 0 +++
[pid 11561] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11561, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11563
./strace-static-x86_64: Process 11563 attached
[pid 11563] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11563] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11563] setpgid(0, 0)               = 0
[pid 11563] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11563] write(3, "1000", 4)         = 4
[pid 11563] close(3)                    = 0
[pid 11563] write(1, "executing program\n", 18executing program
) = 18
[pid 11563] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11563] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11563] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11563] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11563] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11563] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11563] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11564 attached
 => {parent_tid=[11564]}, 88) = 11564
[pid 11564] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11564] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11564] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11563] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11563] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11564] <... futex resumed>)        = 0
[pid 11564] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11564] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11564] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11563] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11563] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11564] <... futex resumed>)        = 0
[pid 11564] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11563] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11564] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11564] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11563] <... futex resumed>)        = 0
[pid 11563] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11563] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11564] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11564] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11563] <... futex resumed>)        = 0
[pid 11563] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11563] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11564] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11564] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11563] <... futex resumed>)        = 0
[pid 11563] exit_group(0)               = ?
[pid 11564] +++ exited with 0 +++
[pid 11563] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11563, si_uid=0, si_status=0, 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 11565 attached
, child_tidptr=0x55558842d690) = 11565
[pid 11565] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11565] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11565] setpgid(0, 0)               = 0
[pid 11565] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11565] write(3, "1000", 4)         = 4
[pid 11565] close(3)                    = 0
[pid 11565] write(1, "executing program\n", 18executing program
) = 18
[pid 11565] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11565] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11565] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11565] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11565] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11565] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11565] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11566]}, 88) = 11566
[pid 11565] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11565] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11565] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11566 attached
 <unfinished ...>
[pid 11566] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11566] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11566] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11566] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11565] <... futex resumed>)        = 0
[pid 11565] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11565] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11566] <... futex resumed>)        = 1
[pid 11566] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11566] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11565] <... futex resumed>)        = 0
[pid 11565] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11565] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11566] <... futex resumed>)        = 1
[pid 11566] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11566] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11565] <... futex resumed>)        = 0
[pid 11565] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11565] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11566] <... futex resumed>)        = 1
[pid 11566] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11566] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11565] <... futex resumed>)        = 0
[pid 11565] exit_group(0)               = ?
[pid 11566] <... futex resumed>)        = ?
[pid 11566] +++ exited with 0 +++
[pid 11565] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11565, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11567
./strace-static-x86_64: Process 11567 attached
[pid 11567] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11567] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11567] setpgid(0, 0)               = 0
[pid 11567] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11567] write(3, "1000", 4)         = 4
[pid 11567] close(3)                    = 0
[pid 11567] write(1, "executing program\n", 18executing program
) = 18
[pid 11567] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11567] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11567] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11567] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11567] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11567] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11567] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11568 attached
 => {parent_tid=[11568]}, 88) = 11568
[pid 11568] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11567] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11568] <... set_robust_list resumed>) = 0
[pid 11567] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11568] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11567] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11567] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11568] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11568] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11568] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11567] <... futex resumed>)        = 0
[pid 11567] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11567] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11568] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11568] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11567] <... futex resumed>)        = 0
[pid 11567] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11567] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11568] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11568] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11567] <... futex resumed>)        = 0
[pid 11567] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11567] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11568] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11568] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11567] <... futex resumed>)        = 0
[pid 11567] exit_group(0)               = ?
[pid 11568] +++ exited with 0 +++
[pid 11567] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11567, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11569
./strace-static-x86_64: Process 11569 attached
[pid 11569] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11569] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11569] setpgid(0, 0)               = 0
[pid 11569] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11569] write(3, "1000", 4)         = 4
[pid 11569] close(3)                    = 0
[pid 11569] write(1, "executing program\n", 18executing program
) = 18
[pid 11569] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11569] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11569] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11569] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11569] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11569] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11569] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11570 attached
 => {parent_tid=[11570]}, 88) = 11570
[pid 11570] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11570] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11570] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11569] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11569] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11570] <... futex resumed>)        = 0
[pid 11569] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11570] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11570] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11570] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11569] <... futex resumed>)        = 0
[pid 11569] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11570] <... futex resumed>)        = 0
[pid 11570] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11569] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11570] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11570] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11570] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11569] <... futex resumed>)        = 0
[pid 11569] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11570] <... futex resumed>)        = 0
[pid 11570] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11570] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11570] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11569] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11569] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11570] <... futex resumed>)        = 0
[pid 11570] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11570] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11570] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11569] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11569] exit_group(0)               = ?
[pid 11570] <... futex resumed>)        = ?
[pid 11570] +++ exited with 0 +++
[pid 11569] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11569, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11571
./strace-static-x86_64: Process 11571 attached
[pid 11571] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11571] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11571] setpgid(0, 0)               = 0
[pid 11571] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11571] write(3, "1000", 4)         = 4
[pid 11571] close(3)                    = 0
[pid 11571] write(1, "executing program\n", 18executing program
) = 18
[pid 11571] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11571] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11571] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11571] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11571] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11571] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11571] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11572 attached
 => {parent_tid=[11572]}, 88) = 11572
[pid 11572] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11572] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11572] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11571] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11571] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11572] <... futex resumed>)        = 0
[pid 11571] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11572] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11572] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11572] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11571] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11571] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11572] <... futex resumed>)        = 0
[pid 11572] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11572] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11572] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11571] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11571] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11572] <... futex resumed>)        = 0
[pid 11572] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11572] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11572] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11571] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11571] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11572] <... futex resumed>)        = 0
[pid 11571] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11572] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11572] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11572] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11571] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11571] exit_group(0)               = ?
[pid 11572] <... futex resumed>)        = ?
[pid 11572] +++ exited with 0 +++
[pid 11571] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11571, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11573
./strace-static-x86_64: Process 11573 attached
[pid 11573] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11573] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11573] setpgid(0, 0)               = 0
[pid 11573] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11573] write(3, "1000", 4)         = 4
[pid 11573] close(3)                    = 0
[pid 11573] write(1, "executing program\n", 18executing program
) = 18
[pid 11573] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11573] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11573] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11573] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11573] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11573] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11573] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11574 attached
 => {parent_tid=[11574]}, 88) = 11574
[pid 11574] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11574] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11574] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11573] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11573] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11574] <... futex resumed>)        = 0
[pid 11573] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11574] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11574] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11574] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11573] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11573] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11574] <... futex resumed>)        = 0
[pid 11574] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11574] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11574] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11573] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11573] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11574] <... futex resumed>)        = 0
[pid 11574] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11573] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11574] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11574] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11574] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11573] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11573] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11574] <... futex resumed>)        = 0
[pid 11574] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11573] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11574] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11574] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11573] <... futex resumed>)        = 0
[pid 11573] exit_group(0)               = ?
[pid 11574] +++ exited with 0 +++
[pid 11573] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11573, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11575
./strace-static-x86_64: Process 11575 attached
[pid 11575] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11575] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11575] setpgid(0, 0)               = 0
[pid 11575] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11575] write(3, "1000", 4)         = 4
[pid 11575] close(3)                    = 0
[pid 11575] write(1, "executing program\n", 18executing program
) = 18
[pid 11575] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11575] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11575] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11575] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11575] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11575] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11575] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11576 attached
 => {parent_tid=[11576]}, 88) = 11576
[pid 11576] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11575] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11576] <... set_robust_list resumed>) = 0
[pid 11575] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11576] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11575] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11576] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11575] <... futex resumed>)        = 0
[pid 11575] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11576] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11575] <... futex resumed>)        = 0
[pid 11576] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11575] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11576] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11575] <... futex resumed>)        = 0
[pid 11576] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11575] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11576] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11576] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11575] <... futex resumed>)        = 0
[pid 11576] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11575] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11576] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11575] <... futex resumed>)        = 0
[pid 11576] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11575] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11576] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11576] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11575] <... futex resumed>)        = 0
[pid 11575] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11575] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11576] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11576] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11575] <... futex resumed>)        = 0
[pid 11576] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11575] exit_group(0)               = ?
[pid 11576] <... futex resumed>)        = ?
[pid 11576] +++ exited with 0 +++
[pid 11575] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11575, si_uid=0, si_status=0, 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 11577 attached
, child_tidptr=0x55558842d690) = 11577
[pid 11577] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11577] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11577] setpgid(0, 0)               = 0
[pid 11577] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11577] write(3, "1000", 4)         = 4
[pid 11577] close(3)                    = 0
executing program
[pid 11577] write(1, "executing program\n", 18) = 18
[pid 11577] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11577] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11577] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11577] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11577] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11577] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11577] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11578 attached
 => {parent_tid=[11578]}, 88) = 11578
[pid 11578] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11577] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11578] <... set_robust_list resumed>) = 0
[pid 11577] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11578] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11577] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11578] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11578] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11577] <... futex resumed>)        = 0
[pid 11577] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11578] <... 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 11578] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11577] <... futex resumed>)        = 0
[pid 11577] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11577] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11578] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11578] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11577] <... futex resumed>)        = 0
[pid 11577] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11577] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11578] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11578] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11577] <... futex resumed>)        = 0
[pid 11577] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11577] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11578] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11578] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11577] <... futex resumed>)        = 0
[pid 11577] exit_group(0)               = ?
[pid 11578] +++ exited with 0 +++
[pid 11577] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11577, si_uid=0, si_status=0, 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 11579 attached
, child_tidptr=0x55558842d690) = 11579
[pid 11579] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11579] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11579] setpgid(0, 0)               = 0
[pid 11579] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11579] write(3, "1000", 4)         = 4
[pid 11579] close(3executing program
)                    = 0
[pid 11579] write(1, "executing program\n", 18) = 18
[pid 11579] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11579] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11579] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11579] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11579] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11579] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11579] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11580 attached
 => {parent_tid=[11580]}, 88) = 11580
[pid 11580] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11580] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11580] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11579] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11579] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11580] <... futex resumed>)        = 0
[pid 11579] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11580] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11580] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11580] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11579] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11579] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11580] <... futex resumed>)        = 0
[pid 11580] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11580] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11580] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11579] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11579] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11580] <... futex resumed>)        = 0
[pid 11580] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11579] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11580] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11580] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11580] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11579] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11579] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11580] <... futex resumed>)        = 0
[pid 11580] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11579] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11580] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11580] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11580] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11579] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11579] exit_group(0)               = ?
[pid 11580] <... futex resumed>)        = ?
[pid 11580] +++ exited with 0 +++
[pid 11579] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11579, si_uid=0, si_status=0, 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 11581 attached
, child_tidptr=0x55558842d690) = 11581
[pid 11581] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11581] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11581] setpgid(0, 0)               = 0
[pid 11581] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11581] write(3, "1000", 4)         = 4
[pid 11581] close(3)                    = 0
[pid 11581] write(1, "executing program\n", 18executing program
) = 18
[pid 11581] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11581] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11581] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11581] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11581] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11581] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11581] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11582 attached
 => {parent_tid=[11582]}, 88) = 11582
[pid 11582] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11581] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11582] <... set_robust_list resumed>) = 0
[pid 11581] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11582] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11581] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11582] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11581] <... futex resumed>)        = 0
[pid 11581] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11582] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11582] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11581] <... futex resumed>)        = 0
[pid 11582] <... futex resumed>)        = 1
[pid 11581] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11582] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11581] <... futex resumed>)        = 0
[pid 11581] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11582] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11582] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11581] <... futex resumed>)        = 0
[pid 11582] <... futex resumed>)        = 1
[pid 11581] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11582] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11581] <... futex resumed>)        = 0
[pid 11582] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11581] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11582] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11581] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11582] <... futex resumed>)        = 0
[pid 11581] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11581] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11582] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11582] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11581] <... futex resumed>)        = 0
[pid 11582] <... futex resumed>)        = 1
[pid 11581] exit_group(0 <unfinished ...>
[pid 11582] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11581] <... exit_group resumed>)   = ?
[pid 11582] <... futex resumed>)        = ?
[pid 11582] +++ exited with 0 +++
[pid 11581] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11581, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11583
./strace-static-x86_64: Process 11583 attached
[pid 11583] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11583] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11583] setpgid(0, 0)               = 0
[pid 11583] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11583] write(3, "1000", 4)         = 4
[pid 11583] close(3)                    = 0
[pid 11583] write(1, "executing program\n", 18executing program
) = 18
[pid 11583] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11583] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11583] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11583] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11583] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11583] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11583] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11584 attached
 => {parent_tid=[11584]}, 88) = 11584
[pid 11583] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11583] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11583] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11584] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11584] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11584] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11584] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11583] <... futex resumed>)        = 0
[pid 11583] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11583] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11584] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11584] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11583] <... futex resumed>)        = 0
[pid 11583] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11583] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11584] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11584] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11583] <... futex resumed>)        = 0
[pid 11583] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11583] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11584] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11584] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11583] <... futex resumed>)        = 0
[pid 11583] exit_group(0)               = ?
[pid 11584] +++ exited with 0 +++
[pid 11583] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11583, si_uid=0, si_status=0, 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 11585 attached
, child_tidptr=0x55558842d690) = 11585
[pid 11585] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11585] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11585] setpgid(0, 0)               = 0
[pid 11585] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11585] write(3, "1000", 4)         = 4
[pid 11585] close(3)                    = 0
[pid 11585] write(1, "executing program\n", 18executing program
) = 18
[pid 11585] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11585] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11585] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11585] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11585] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11585] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11585] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11586 attached
 => {parent_tid=[11586]}, 88) = 11586
[pid 11586] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11586] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11586] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11585] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11585] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11586] <... futex resumed>)        = 0
[pid 11585] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11586] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11586] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11586] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11585] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11585] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11586] <... futex resumed>)        = 0
[pid 11586] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11585] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11586] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11586] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11586] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11585] <... futex resumed>)        = 0
[pid 11585] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11586] <... futex resumed>)        = 0
[pid 11585] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11586] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11586] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11585] <... futex resumed>)        = 0
[pid 11585] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11585] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11586] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11586] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11585] <... futex resumed>)        = 0
[pid 11586] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11585] exit_group(0)               = ?
[pid 11586] <... futex resumed>)        = ?
[pid 11586] +++ exited with 0 +++
[pid 11585] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11585, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11587
./strace-static-x86_64: Process 11587 attached
[pid 11587] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11587] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11587] setpgid(0, 0)               = 0
[pid 11587] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11587] write(3, "1000", 4)         = 4
[pid 11587] close(3)                    = 0
[pid 11587] write(1, "executing program\n", 18executing program
) = 18
[pid 11587] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11587] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11587] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11587] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11587] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11587] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11587] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11588 attached
 => {parent_tid=[11588]}, 88) = 11588
[pid 11588] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11588] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11588] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11587] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11587] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11588] <... futex resumed>)        = 0
[pid 11587] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11588] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11588] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11588] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11587] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11587] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11588] <... futex resumed>)        = 0
[pid 11588] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11588] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11588] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11587] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11587] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11588] <... futex resumed>)        = 0
[pid 11588] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11588] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11588] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11587] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11587] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11588] <... futex resumed>)        = 0
[pid 11588] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11587] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11588] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11588] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11587] <... futex resumed>)        = 0
[pid 11588] <... futex resumed>)        = 1
[pid 11587] exit_group(0 <unfinished ...>
[pid 11588] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11587] <... exit_group resumed>)   = ?
[pid 11588] <... futex resumed>)        = -1 (errno 18446744073709551414)
[pid 11588] +++ exited with 0 +++
[pid 11587] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11587, 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=0x55558842d690) = 11589
./strace-static-x86_64: Process 11589 attached
[pid 11589] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11589] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11589] setpgid(0, 0)               = 0
[pid 11589] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11589] write(3, "1000", 4)         = 4
[pid 11589] close(3executing program
)                    = 0
[pid 11589] write(1, "executing program\n", 18) = 18
[pid 11589] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11589] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11589] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11589] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11589] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11589] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11589] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11590 attached
 <unfinished ...>
[pid 11590] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11589] <... clone3 resumed> => {parent_tid=[11590]}, 88) = 11590
[pid 11589] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11590] <... set_robust_list resumed>) = 0
[pid 11589] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11590] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11589] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11590] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11589] <... futex resumed>)        = 0
[pid 11590] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11589] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11590] <... 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 11590] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11589] <... futex resumed>)        = 0
[pid 11589] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11589] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11590] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11590] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11589] <... futex resumed>)        = 0
[pid 11589] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11589] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11590] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11590] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11589] <... futex resumed>)        = 0
[pid 11589] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11589] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11590] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11590] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11589] <... futex resumed>)        = 0
[pid 11589] exit_group(0)               = ?
[pid 11590] +++ exited with 0 +++
[pid 11589] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11589, si_uid=0, si_status=0, 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 11591 attached
 <unfinished ...>
[pid 11591] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11591] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11591] setpgid(0, 0 <unfinished ...>
[pid   555] <... clone resumed>, child_tidptr=0x55558842d690) = 11591
[pid 11591] <... setpgid resumed>)      = 0
[pid 11591] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11591] write(3, "1000", 4)         = 4
[pid 11591] close(3)                    = 0
[pid 11591] write(1, "executing program\n", 18executing program
) = 18
[pid 11591] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11591] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11591] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11591] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11591] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11591] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11591] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11592 attached
 => {parent_tid=[11592]}, 88) = 11592
[pid 11592] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11592] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11592] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11591] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11591] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11592] <... futex resumed>)        = 0
[pid 11592] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11592] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11592] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11591] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11591] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11592] <... futex resumed>)        = 0
[pid 11592] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11592] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11592] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11591] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11591] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11592] <... futex resumed>)        = 0
[pid 11592] 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11592] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11591] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11591] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11592] <... futex resumed>)        = 0
[pid 11592] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11592] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11592] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11591] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11591] exit_group(0)               = ?
[pid 11592] <... futex resumed>)        = ?
[pid 11592] +++ exited with 0 +++
[pid 11591] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11591, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11593
./strace-static-x86_64: Process 11593 attached
[pid 11593] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11593] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11593] setpgid(0, 0)               = 0
[pid 11593] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11593] write(3, "1000", 4)         = 4
[pid 11593] close(3)                    = 0
executing program
[pid 11593] write(1, "executing program\n", 18) = 18
[pid 11593] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11593] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11593] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11593] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11593] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11593] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11593] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11594]}, 88) = 11594
[pid 11593] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11593] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11593] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11594 attached
 <unfinished ...>
[pid 11594] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11594] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11594] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11594] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11593] <... futex resumed>)        = 0
[pid 11593] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11593] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11594] <... futex resumed>)        = 1
[pid 11594] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11594] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11593] <... futex resumed>)        = 0
[pid 11593] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11593] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11594] <... futex resumed>)        = 1
[pid 11594] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11594] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11593] <... futex resumed>)        = 0
[pid 11593] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11593] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11594] <... futex resumed>)        = 1
[pid 11594] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11594] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11593] <... futex resumed>)        = 0
[pid 11593] exit_group(0)               = ?
[pid 11594] <... futex resumed>)        = ?
[pid 11594] +++ exited with 0 +++
[pid 11593] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11593, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11595
./strace-static-x86_64: Process 11595 attached
[pid 11595] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11595] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11595] setpgid(0, 0)               = 0
[pid 11595] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11595] write(3, "1000", 4)         = 4
[pid 11595] close(3)                    = 0
executing program
[pid 11595] write(1, "executing program\n", 18) = 18
[pid 11595] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11595] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11595] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11595] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11595] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11595] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11595] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11596 attached
 => {parent_tid=[11596]}, 88) = 11596
[pid 11596] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11595] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11596] <... set_robust_list resumed>) = 0
[pid 11595] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11596] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11595] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11596] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11596] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11596] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11595] <... futex resumed>)        = 0
[pid 11595] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11595] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11596] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11596] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11595] <... futex resumed>)        = 0
[pid 11595] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11595] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11596] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11596] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11595] <... futex resumed>)        = 0
[pid 11595] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11595] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11596] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11596] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11595] <... futex resumed>)        = 0
[pid 11595] exit_group(0)               = ?
[pid 11596] +++ exited with 0 +++
[pid 11595] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11595, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11597
./strace-static-x86_64: Process 11597 attached
[pid 11597] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11597] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11597] setpgid(0, 0)               = 0
[pid 11597] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11597] write(3, "1000", 4)         = 4
executing program
[pid 11597] close(3)                    = 0
[pid 11597] write(1, "executing program\n", 18) = 18
[pid 11597] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11597] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11597] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11597] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11597] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11597] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11597] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11598 attached
 <unfinished ...>
[pid 11598] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11597] <... clone3 resumed> => {parent_tid=[11598]}, 88) = 11598
[pid 11598] <... set_robust_list resumed>) = 0
[pid 11597] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11598] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11597] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11598] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11597] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11597] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11598] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11598] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11597] <... futex resumed>)        = 0
[pid 11598] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11597] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11598] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11597] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11598] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11597] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11598] <... futex resumed>)        = 0
[pid 11597] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11598] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11597] <... futex resumed>)        = 0
[pid 11598] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11597] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11598] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11597] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11598] <... futex resumed>)        = 0
[pid 11597] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11598] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11597] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11598] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11598] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11597] <... futex resumed>)        = 0
[pid 11597] exit_group(0)               = ?
[pid 11598] +++ exited with 0 +++
[pid 11597] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11597, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11599
./strace-static-x86_64: Process 11599 attached
[pid 11599] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11599] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11599] setpgid(0, 0)               = 0
[pid 11599] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11599] write(3, "1000", 4)         = 4
[pid 11599] close(3)                    = 0
executing program
[pid 11599] write(1, "executing program\n", 18) = 18
[pid 11599] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11599] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11599] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11599] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11599] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11599] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11599] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11600]}, 88) = 11600
[pid 11599] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11599] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11599] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11600 attached
 <unfinished ...>
[pid 11600] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11600] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11600] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11600] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11599] <... futex resumed>)        = 0
[pid 11599] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11599] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11600] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11600] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11599] <... futex resumed>)        = 0
[pid 11599] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11600] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11599] <... futex resumed>)        = 0
[pid 11599] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11600] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11600] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11599] <... futex resumed>)        = 0
[pid 11599] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11600] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11599] <... futex resumed>)        = 0
[pid 11599] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11600] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11600] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11599] <... futex resumed>)        = 0
[pid 11600] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11599] exit_group(0)               = ?
[pid 11600] <... futex resumed>)        = ?
[pid 11600] +++ exited with 0 +++
[pid 11599] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11599, si_uid=0, si_status=0, 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 11601 attached
, child_tidptr=0x55558842d690) = 11601
[pid 11601] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11601] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11601] setpgid(0, 0)               = 0
[pid 11601] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11601] write(3, "1000", 4)         = 4
[pid 11601] close(3)                    = 0
[pid 11601] write(1, "executing program\n", 18executing program
) = 18
[pid 11601] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11601] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11601] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11601] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11601] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11601] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11601] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11602]}, 88) = 11602
[pid 11601] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11601] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11601] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11602 attached
 <unfinished ...>
[pid 11602] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11602] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11602] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11602] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11601] <... futex resumed>)        = 0
[pid 11601] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11601] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11602] <... futex resumed>)        = 1
[pid 11602] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11602] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11601] <... futex resumed>)        = 0
[pid 11601] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11601] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11602] <... futex resumed>)        = 1
[pid 11602] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11602] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11601] <... futex resumed>)        = 0
[pid 11601] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11601] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11602] <... futex resumed>)        = 1
[pid 11602] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11602] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11601] <... futex resumed>)        = 0
[pid 11601] exit_group(0)               = ?
[pid 11602] <... futex resumed>)        = ?
[pid 11602] +++ exited with 0 +++
[pid 11601] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11601, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11603
./strace-static-x86_64: Process 11603 attached
[pid 11603] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11603] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11603] setpgid(0, 0)               = 0
[pid 11603] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11603] write(3, "1000", 4)         = 4
[pid 11603] close(3executing program
)                    = 0
[pid 11603] write(1, "executing program\n", 18) = 18
[pid 11603] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11603] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11603] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11603] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11603] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11603] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11603] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11604 attached
 => {parent_tid=[11604]}, 88) = 11604
[pid 11603] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11603] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11603] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11604] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11604] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11604] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11604] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11603] <... futex resumed>)        = 0
[pid 11603] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11603] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11604] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11604] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11603] <... futex resumed>)        = 0
[pid 11603] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11604] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11603] <... futex resumed>)        = 0
[pid 11603] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11604] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11604] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11603] <... futex resumed>)        = 0
[pid 11603] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11603] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11604] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11604] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11603] <... futex resumed>)        = 0
[pid 11603] exit_group(0 <unfinished ...>
[pid 11604] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11603] <... exit_group resumed>)   = ?
[pid 11604] <... futex resumed>)        = ?
[pid 11604] +++ exited with 0 +++
[pid 11603] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11603, si_uid=0, si_status=0, 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 11605 attached
, child_tidptr=0x55558842d690) = 11605
[pid 11605] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11605] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11605] setpgid(0, 0)               = 0
[pid 11605] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11605] write(3, "1000", 4)         = 4
[pid 11605] close(3)                    = 0
[pid 11605] write(1, "executing program\n", 18executing program
) = 18
[pid 11605] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11605] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11605] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11605] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11605] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11605] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11605] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11606 attached
 => {parent_tid=[11606]}, 88) = 11606
[pid 11606] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11606] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11606] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11605] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11605] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11606] <... futex resumed>)        = 0
[pid 11605] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11606] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11606] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11606] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11605] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11605] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11606] <... futex resumed>)        = 0
[pid 11606] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11605] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11606] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11606] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11606] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11605] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11605] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11606] <... futex resumed>)        = 0
[pid 11606] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11606] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11605] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11606] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11605] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11605] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11605] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11606] <... futex resumed>)        = 0
[pid 11606] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11606] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11606] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11605] <... futex resumed>)        = 0
[pid 11605] exit_group(0)               = ?
[pid 11606] <... futex resumed>)        = ?
[pid 11606] +++ exited with 0 +++
[pid 11605] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11605, 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=0x55558842d690) = 11607
./strace-static-x86_64: Process 11607 attached
[pid 11607] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11607] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11607] setpgid(0, 0)               = 0
[pid 11607] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11607] write(3, "1000", 4)         = 4
[pid 11607] close(3)                    = 0
[pid 11607] write(1, "executing program\n", 18executing program
) = 18
[pid 11607] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11607] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11607] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11607] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11607] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11607] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11607] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11608]}, 88) = 11608
[pid 11607] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11607] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11607] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11608 attached
 <unfinished ...>
[pid 11608] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11608] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11608] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11608] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11607] <... futex resumed>)        = 0
[pid 11607] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11607] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11608] <... futex resumed>)        = 1
[pid 11608] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11608] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11607] <... futex resumed>)        = 0
[pid 11607] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11607] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11608] <... futex resumed>)        = 1
[pid 11608] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11608] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11607] <... futex resumed>)        = 0
[pid 11607] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11607] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11608] <... futex resumed>)        = 1
[pid 11608] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11608] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11607] <... futex resumed>)        = 0
[pid 11607] exit_group(0)               = ?
[pid 11608] <... futex resumed>)        = ?
[pid 11608] +++ exited with 0 +++
[pid 11607] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11607, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11609
./strace-static-x86_64: Process 11609 attached
[pid 11609] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11609] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11609] setpgid(0, 0)               = 0
[pid 11609] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11609] write(3, "1000", 4)         = 4
executing program
[pid 11609] close(3)                    = 0
[pid 11609] write(1, "executing program\n", 18) = 18
[pid 11609] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11609] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11609] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11609] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11609] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11609] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11609] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11610]}, 88) = 11610
[pid 11609] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11609] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11609] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11610 attached
 <unfinished ...>
[pid 11610] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11610] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11610] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11610] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11609] <... futex resumed>)        = 0
[pid 11609] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11609] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11610] <... futex resumed>)        = 1
[pid 11610] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11610] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11609] <... futex resumed>)        = 0
[pid 11609] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11609] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11610] <... futex resumed>)        = 1
[pid 11610] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11610] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11609] <... futex resumed>)        = 0
[pid 11609] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11609] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11610] <... futex resumed>)        = 1
[pid 11610] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11610] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11609] <... futex resumed>)        = 0
[pid 11609] exit_group(0)               = ?
[pid 11610] +++ exited with 0 +++
[pid 11609] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11609, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11611
./strace-static-x86_64: Process 11611 attached
[pid 11611] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11611] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11611] setpgid(0, 0)               = 0
[pid 11611] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11611] write(3, "1000", 4)         = 4
[pid 11611] close(3)                    = 0
executing program
[pid 11611] write(1, "executing program\n", 18) = 18
[pid 11611] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11611] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11611] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11611] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11611] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11611] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11611] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11612 attached
 => {parent_tid=[11612]}, 88) = 11612
[pid 11612] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11611] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11612] <... set_robust_list resumed>) = 0
[pid 11611] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11612] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11611] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11612] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11611] <... futex resumed>)        = 0
[pid 11612] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11611] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11612] <... 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 11612] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11611] <... futex resumed>)        = 0
[pid 11611] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11611] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11612] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11612] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11611] <... futex resumed>)        = 0
[pid 11611] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11611] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11612] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11612] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11611] <... futex resumed>)        = 0
[pid 11611] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11611] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11612] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11612] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11611] <... futex resumed>)        = 0
[pid 11611] exit_group(0)               = ?
[pid 11612] +++ exited with 0 +++
[pid 11611] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11611, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11613
./strace-static-x86_64: Process 11613 attached
[pid 11613] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11613] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11613] setpgid(0, 0)               = 0
[pid 11613] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11613] write(3, "1000", 4)         = 4
[pid 11613] close(3)                    = 0
[pid 11613] write(1, "executing program\n", 18executing program
) = 18
[pid 11613] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11613] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11613] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11613] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11613] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11613] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11613] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11614 attached
 => {parent_tid=[11614]}, 88) = 11614
[pid 11614] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11614] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11614] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11613] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11613] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11614] <... futex resumed>)        = 0
[pid 11613] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11614] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11614] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11614] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11613] <... futex resumed>)        = 0
[pid 11613] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11614] <... futex resumed>)        = 0
[pid 11614] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11614] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11614] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11613] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11613] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11614] <... futex resumed>)        = 0
[pid 11613] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11614] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11614] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11614] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11613] <... futex resumed>)        = 0
[pid 11614] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11613] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11613] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11614] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11614] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11613] <... futex resumed>)        = 0
[pid 11614] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11613] exit_group(0)               = ?
[pid 11614] <... futex resumed>)        = ?
[pid 11614] +++ exited with 0 +++
[pid 11613] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11613, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11615
./strace-static-x86_64: Process 11615 attached
[pid 11615] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11615] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11615] setpgid(0, 0)               = 0
[pid 11615] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11615] write(3, "1000", 4)         = 4
[pid 11615] close(3)                    = 0
executing program
[pid 11615] write(1, "executing program\n", 18) = 18
[pid 11615] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11615] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11615] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11615] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11615] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11615] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11615] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11616 attached
 <unfinished ...>
[pid 11616] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11615] <... clone3 resumed> => {parent_tid=[11616]}, 88) = 11616
[pid 11615] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11615] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11615] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11616] <... set_robust_list resumed>) = 0
[pid 11616] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11616] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11616] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11615] <... futex resumed>)        = 0
[pid 11615] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11615] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11616] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11616] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11615] <... futex resumed>)        = 0
[pid 11615] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11615] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11616] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11616] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11615] <... futex resumed>)        = 0
[pid 11615] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11615] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11616] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11616] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11615] <... futex resumed>)        = 0
[pid 11615] exit_group(0)               = ?
[pid 11616] +++ exited with 0 +++
[pid 11615] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11615, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11617
./strace-static-x86_64: Process 11617 attached
[pid 11617] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11617] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11617] setpgid(0, 0)               = 0
[pid 11617] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11617] write(3, "1000", 4)         = 4
executing program
[pid 11617] close(3)                    = 0
[pid 11617] write(1, "executing program\n", 18) = 18
[pid 11617] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11617] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11617] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11617] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11617] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11617] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11617] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11618]}, 88) = 11618
./strace-static-x86_64: Process 11618 attached
[pid 11618] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11618] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11618] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11617] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11617] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11618] <... futex resumed>)        = 0
[pid 11618] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11618] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11618] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11617] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11617] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11618] <... futex resumed>)        = 0
[pid 11618] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11618] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11618] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11617] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11617] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11618] <... futex resumed>)        = 0
[pid 11617] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11618] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11618] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11618] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11617] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11617] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11618] <... futex resumed>)        = 0
[pid 11618] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11617] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11618] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11618] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11618] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11617] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11617] exit_group(0)               = ?
[pid 11618] <... futex resumed>)        = ?
[pid 11618] +++ exited with 0 +++
[pid 11617] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11617, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11619
./strace-static-x86_64: Process 11619 attached
[pid 11619] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11619] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11619] setpgid(0, 0)               = 0
[pid 11619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11619] write(3, "1000", 4)         = 4
[pid 11619] close(3)                    = 0
[pid 11619] write(1, "executing program\n", 18executing program
) = 18
[pid 11619] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11619] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11619] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11619] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11619] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11619] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11619] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11620 attached
 => {parent_tid=[11620]}, 88) = 11620
[pid 11620] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11619] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11620] <... set_robust_list resumed>) = 0
[pid 11619] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11620] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11619] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11620] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11619] <... futex resumed>)        = 0
[pid 11619] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11620] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11620] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11619] <... futex resumed>)        = 0
[pid 11620] <... futex resumed>)        = 1
[pid 11619] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11620] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11619] <... futex resumed>)        = 0
[pid 11619] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11620] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11620] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11619] <... futex resumed>)        = 0
[pid 11620] <... futex resumed>)        = 1
[pid 11619] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11619] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11620] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11620] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11619] <... futex resumed>)        = 0
[pid 11619] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11619] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11620] <... futex resumed>)        = 1
[pid 11620] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11620] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11619] <... futex resumed>)        = 0
[pid 11619] exit_group(0)               = ?
[pid 11620] <... futex resumed>)        = ?
[pid 11620] +++ exited with 0 +++
[pid 11619] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11619, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11621
./strace-static-x86_64: Process 11621 attached
[pid 11621] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11621] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11621] setpgid(0, 0)               = 0
[pid 11621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11621] write(3, "1000", 4)         = 4
[pid 11621] close(3)                    = 0
executing program
[pid 11621] write(1, "executing program\n", 18) = 18
[pid 11621] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11621] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11621] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11621] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11621] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11621] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11621] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11622 attached
 => {parent_tid=[11622]}, 88) = 11622
[pid 11621] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11621] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11621] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11622] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11622] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11622] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11622] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11622] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11621] <... futex resumed>)        = 0
[pid 11621] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11622] <... futex resumed>)        = 0
[pid 11622] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11622] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11622] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11621] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11621] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11622] <... futex resumed>)        = 0
[pid 11622] 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11622] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11621] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11621] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11622] <... futex resumed>)        = 0
[pid 11622] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11621] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11622] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11622] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11622] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11621] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11621] exit_group(0)               = ?
[pid 11622] <... futex resumed>)        = ?
[pid 11622] +++ exited with 0 +++
[pid 11621] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11621, si_uid=0, si_status=0, 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 11623 attached
, child_tidptr=0x55558842d690) = 11623
[pid 11623] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11623] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11623] setpgid(0, 0)               = 0
[pid 11623] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11623] write(3, "1000", 4)         = 4
[pid 11623] close(3)                    = 0
[pid 11623] write(1, "executing program\n", 18executing program
) = 18
[pid 11623] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11623] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11623] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11623] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11623] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11623] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11623] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11624 attached
 => {parent_tid=[11624]}, 88) = 11624
[pid 11624] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11624] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11624] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11623] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11623] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11624] <... futex resumed>)        = 0
[pid 11624] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11623] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11624] <... 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11624] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11623] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11623] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11624] <... futex resumed>)        = 0
[pid 11624] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11623] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11624] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11624] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11624] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11623] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11623] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11624] <... futex resumed>)        = 0
[pid 11623] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11624] 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11624] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11623] <... futex resumed>)        = 0
[pid 11623] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11624] <... futex resumed>)        = 0
[pid 11624] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11623] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11624] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11624] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11623] <... futex resumed>)        = 0
[pid 11624] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11623] exit_group(0 <unfinished ...>
[pid 11624] <... futex resumed>)        = ?
[pid 11623] <... exit_group resumed>)   = ?
[pid 11624] +++ exited with 0 +++
[pid 11623] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11623, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11625
./strace-static-x86_64: Process 11625 attached
[pid 11625] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11625] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11625] setpgid(0, 0)               = 0
[pid 11625] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11625] write(3, "1000", 4)         = 4
[pid 11625] close(3executing program
)                    = 0
[pid 11625] write(1, "executing program\n", 18) = 18
[pid 11625] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11625] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11625] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11625] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11625] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11625] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11625] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11626]}, 88) = 11626
[pid 11625] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11625] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11625] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11626 attached
 <unfinished ...>
[pid 11626] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11626] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11626] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11626] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11625] <... futex resumed>)        = 0
[pid 11625] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11625] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11626] <... futex resumed>)        = 1
[pid 11626] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11626] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11625] <... futex resumed>)        = 0
[pid 11625] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11625] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11626] <... futex resumed>)        = 1
[pid 11626] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11626] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11625] <... futex resumed>)        = 0
[pid 11625] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11625] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11626] <... futex resumed>)        = 1
[pid 11626] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11626] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11625] <... futex resumed>)        = 0
[pid 11625] exit_group(0)               = ?
[pid 11626] +++ exited with 0 +++
[pid 11625] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11625, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11627
./strace-static-x86_64: Process 11627 attached
[pid 11627] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11627] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11627] setpgid(0, 0)               = 0
[pid 11627] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11627] write(3, "1000", 4)         = 4
[pid 11627] close(3)                    = 0
[pid 11627] write(1, "executing program\n", 18executing program
) = 18
[pid 11627] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11627] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11627] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11627] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11627] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11627] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11627] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11628 attached
 <unfinished ...>
[pid 11628] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11627] <... clone3 resumed> => {parent_tid=[11628]}, 88) = 11628
[pid 11628] <... set_robust_list resumed>) = 0
[pid 11627] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11628] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11627] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11628] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11627] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11628] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11627] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11628] <... 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 11628] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11627] <... futex resumed>)        = 0
[pid 11628] <... futex resumed>)        = 1
[pid 11627] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11628] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11627] <... futex resumed>)        = 0
[pid 11627] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11628] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11628] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11627] <... futex resumed>)        = 0
[pid 11628] <... futex resumed>)        = 1
[pid 11627] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11628] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11627] <... futex resumed>)        = 0
[pid 11627] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11628] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11628] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11627] <... futex resumed>)        = 0
[pid 11628] <... futex resumed>)        = 1
[pid 11627] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11628] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11627] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11628] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11628] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11627] <... futex resumed>)        = 0
[pid 11628] <... futex resumed>)        = 1
[pid 11627] exit_group(0 <unfinished ...>
[pid 11628] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11627] <... exit_group resumed>)   = ?
[pid 11628] <... futex resumed>)        = ?
[pid 11628] +++ exited with 0 +++
[pid 11627] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11627, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11629
./strace-static-x86_64: Process 11629 attached
[pid 11629] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11629] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11629] setpgid(0, 0)               = 0
[pid 11629] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11629] write(3, "1000", 4)         = 4
[pid 11629] close(3)                    = 0
[pid 11629] write(1, "executing program\n", 18executing program
) = 18
[pid 11629] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11629] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11629] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11629] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11629] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11629] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11629] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11630 attached
 <unfinished ...>
[pid 11630] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11630] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11629] <... clone3 resumed> => {parent_tid=[11630]}, 88) = 11630
[pid 11629] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11629] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11630] <... futex resumed>)        = 0
[pid 11630] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11630] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11630] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11629] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11629] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11630] <... futex resumed>)        = 0
[pid 11630] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11630] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11630] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11629] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11629] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11630] <... futex resumed>)        = 0
[pid 11630] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11630] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11630] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11629] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11629] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11630] <... futex resumed>)        = 0
[pid 11630] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11630] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11630] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11629] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11629] exit_group(0)               = ?
[pid 11630] <... futex resumed>)        = ?
[pid 11630] +++ exited with 0 +++
[pid 11629] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11629, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11632
./strace-static-x86_64: Process 11632 attached
[pid 11632] set_robust_list(0x55558842d6a0, 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
executing program
[pid 11632] write(1, "executing program\n", 18) = 18
[pid 11632] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11632] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11632] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11633]}, 88) = 11633
[pid 11632] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11632] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11632] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11633 attached
 <unfinished ...>
[pid 11633] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11633] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11632] <... futex resumed>)        = 0
[pid 11632] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11632] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11633] <... futex resumed>)        = 1
[pid 11633] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11633] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11632] <... futex resumed>)        = 0
[pid 11632] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11632] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11633] <... futex resumed>)        = 1
[pid 11633] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11633] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11632] <... futex resumed>)        = 0
[pid 11632] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11632] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11633] <... futex resumed>)        = 1
[pid 11633] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11633] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11632] <... futex resumed>)        = 0
[pid 11632] exit_group(0)               = ?
[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=0x55558842d690) = 11634
./strace-static-x86_64: Process 11634 attached
[pid 11634] set_robust_list(0x55558842d6a0, 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(3)                    = 0
[pid 11634] write(1, "executing program\n", 18executing program
) = 18
[pid 11634] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11634] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11634] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11635 attached
 => {parent_tid=[11635]}, 88) = 11635
[pid 11635] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11635] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11635] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11634] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11634] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11635] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11634] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11634] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11635] <... futex resumed>)        = 0
[pid 11635] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11635] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11635] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11634] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11634] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11635] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11635] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11634] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11634] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11635] <... futex resumed>)        = 0
[pid 11635] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11635] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11634] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11635] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11634] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11634] exit_group(0 <unfinished ...>
[pid 11635] <... futex resumed>)        = ?
[pid 11635] +++ exited with 0 +++
[pid 11634] <... exit_group resumed>)   = ?
[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=0x55558842d690) = 11636
[pid 11636] set_robust_list(0x55558842d6a0, 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
executing program
[pid 11636] write(1, "executing program\n", 18) = 18
[pid 11636] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11636] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11636] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11637 attached
 => {parent_tid=[11637]}, 88) = 11637
[pid 11637] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11637] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11637] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11636] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11636] futex(0x7fee38f303e8, 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 <unfinished ...>
[pid 11636] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11637] <... 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 11637] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11636] <... futex resumed>)        = 0
[pid 11636] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11636] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11637] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11637] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11636] <... futex resumed>)        = 0
[pid 11636] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11636] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11636] <... futex resumed>)        = 0
[pid 11636] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11636] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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=0x55558842d690) = 11638
./strace-static-x86_64: Process 11638 attached
[pid 11638] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11638] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11638] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11639 attached
 <unfinished ...>
[pid 11639] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11639] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11639] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11638] <... clone3 resumed> => {parent_tid=[11639]}, 88) = 11639
[pid 11638] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11638] futex(0x7fee38f303e8, 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, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11639] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11638] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11638] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11639] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11638] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11638] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11639] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11638] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11638] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11639] <... futex resumed>)        = 0
[pid 11639] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11639] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11639] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11638] futex(0x7fee38f303ec, 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=0x55558842d690) = 11640
./strace-static-x86_64: Process 11640 attached
[pid 11640] set_robust_list(0x55558842d6a0, 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
[pid 11640] write(1, "executing program\n", 18executing program
) = 18
[pid 11640] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11640] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11640] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11641 attached
 => {parent_tid=[11641]}, 88) = 11641
[pid 11641] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11640] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11641] <... set_robust_list resumed>) = 0
[pid 11640] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11641] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11640] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11641] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11640] <... futex resumed>)        = 0
[pid 11640] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11640] <... futex resumed>)        = 0
[pid 11640] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11640] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11641] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11641] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11640] <... futex resumed>)        = 0
[pid 11640] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11640] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11640] <... futex resumed>)        = 0
[pid 11640] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11640] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11641] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11641] futex(0x7fee38f303ec, 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=0x55558842d690) = 11642
./strace-static-x86_64: Process 11642 attached
[pid 11642] set_robust_list(0x55558842d6a0, 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", 4)         = 4
[pid 11642] close(3executing program
)                    = 0
[pid 11642] write(1, "executing program\n", 18) = 18
[pid 11642] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11642] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11642] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11643 attached
 => {parent_tid=[11643]}, 88) = 11643
[pid 11642] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11642] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11642] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11643] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11643] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11643] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11642] <... futex resumed>)        = 0
[pid 11642] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11642] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11643] <... futex resumed>)        = 1
[pid 11643] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11643] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11642] <... futex resumed>)        = 0
[pid 11642] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11642] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11643] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11642] <... futex resumed>)        = 0
[pid 11642] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11642] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11643] <... futex resumed>)        = 1
[pid 11643] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11643] futex(0x7fee38f303ec, 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=0x55558842d690) = 11644
./strace-static-x86_64: Process 11644 attached
[pid 11644] set_robust_list(0x55558842d6a0, 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(3)                    = 0
[pid 11644] write(1, "executing program\n", 18executing program
) = 18
[pid 11644] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11644] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11644] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11645 attached
 => {parent_tid=[11645]}, 88) = 11645
[pid 11645] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11645] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11645] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11644] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11644] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11645] <... futex resumed>)        = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11645] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11644] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11644] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11645] <... futex resumed>)        = 0
[pid 11645] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11645] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11645] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11644] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11644] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11645] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11645] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11644] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11644] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11645] <... futex resumed>)        = 0
[pid 11645] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11644] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11645] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11645] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11645] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11644] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[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=0x55558842d690) = 11646
./strace-static-x86_64: Process 11646 attached
[pid 11646] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11646] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11646] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11647 attached
 => {parent_tid=[11647]}, 88) = 11647
[pid 11647] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11646] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11646] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11646] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11647] <... set_robust_list resumed>) = 0
[pid 11647] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11646] <... futex resumed>)        = 0
[pid 11646] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11646] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11647] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11647] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11646] <... futex resumed>)        = 0
[pid 11646] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11646] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11647] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11647] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11646] <... futex resumed>)        = 0
[pid 11646] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11646] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11646] <... futex resumed>)        = 0
[pid 11646] exit_group(0)               = ?
[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=0x55558842d690) = 11648
./strace-static-x86_64: Process 11648 attached
[pid 11648] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11648] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11648] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11649 attached
 => {parent_tid=[11649]}, 88) = 11649
[pid 11649] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11648] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11648] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11648] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11648] <... futex resumed>)        = 0
[pid 11648] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11648] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11648] <... futex resumed>)        = 0
[pid 11648] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11648] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11648] <... futex resumed>)        = 0
[pid 11648] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11648] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11648] <... futex resumed>)        = 0
[pid 11648] exit_group(0 <unfinished ...>
[pid 11649] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11648] <... exit_group resumed>)   = ?
[pid 11649] <... futex resumed>)        = ?
[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./strace-static-x86_64: Process 11650 attached
, child_tidptr=0x55558842d690) = 11650
[pid 11650] set_robust_list(0x55558842d6a0, 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", 18) = 18
[pid 11650] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000executing program
) = 0
[pid 11650] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11650] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11651]}, 88) = 11651
[pid 11650] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11650] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11650] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11651 attached
 <unfinished ...>
[pid 11651] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11651] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11650] <... futex resumed>)        = 0
[pid 11650] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11650] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11651] <... futex resumed>)        = 1
[pid 11651] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11651] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11650] <... futex resumed>)        = 0
[pid 11650] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11650] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11651] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11650] <... futex resumed>)        = 0
[pid 11650] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11650] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11651] <... futex resumed>)        = 1
[pid 11651] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11651] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11650] <... futex resumed>)        = 0
[pid 11650] exit_group(0)               = ?
[pid 11651] <... futex 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=0x55558842d690) = 11652
./strace-static-x86_64: Process 11652 attached
[pid 11652] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11652] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11652] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11653]}, 88) = 11653
[pid 11652] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11652] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11652] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11653 attached
 <unfinished ...>
[pid 11653] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11653] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11653] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11652] <... futex resumed>)        = 0
[pid 11652] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11652] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11653] <... futex resumed>)        = 1
[pid 11653] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11653] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11652] <... futex resumed>)        = 0
[pid 11652] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11652] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11653] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11652] <... futex resumed>)        = 0
[pid 11652] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11652] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11653] <... futex resumed>)        = 1
[pid 11653] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11653] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11652] <... futex resumed>)        = 0
[pid 11652] exit_group(0)               = ?
[pid 11653] <... futex resumed>)        = ?
[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, child_tidptr=0x55558842d690) = 11654
./strace-static-x86_64: Process 11654 attached
[pid 11654] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11654] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11654] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11655]}, 88) = 11655
./strace-static-x86_64: Process 11655 attached
[pid 11654] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11654] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11654] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11655] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11654] <... futex resumed>)        = 0
[pid 11654] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11654] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11654] <... futex resumed>)        = 0
[pid 11654] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11654] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11654] <... futex resumed>)        = 0
[pid 11654] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11654] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11654] <... futex resumed>)        = 0
[pid 11654] exit_group(0)               = ?
[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, child_tidptr=0x55558842d690) = 11656
./strace-static-x86_64: Process 11656 attached
[pid 11656] set_robust_list(0x55558842d6a0, 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
[pid 11656] write(3, "1000", 4)         = 4
[pid 11656] close(3)                    = 0
[pid 11656] write(1, "executing program\n", 18executing program
) = 18
[pid 11656] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11656] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11656] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11657 attached
 => {parent_tid=[11657]}, 88) = 11657
[pid 11656] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11656] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11656] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11657] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11656] <... futex resumed>)        = 0
[pid 11656] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11656] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11657] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11657] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11656] <... futex resumed>)        = 0
[pid 11656] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11656] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11657] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11657] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11656] <... futex resumed>)        = 0
[pid 11656] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11656] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11657] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11657] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11656] <... futex resumed>)        = 0
[pid 11656] exit_group(0)               = ?
[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=0x55558842d690) = 11658
./strace-static-x86_64: Process 11658 attached
[pid 11658] set_robust_list(0x55558842d6a0, 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
[pid 11658] write(1, "executing program\n", 18executing program
) = 18
[pid 11658] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11658] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11658] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11659 attached
 <unfinished ...>
[pid 11659] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11659] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11659] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11658] <... clone3 resumed> => {parent_tid=[11659]}, 88) = 11659
[pid 11658] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11658] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11659] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11659] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11658] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11658] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11659] <... futex resumed>)        = 0
[pid 11659] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11659] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11659] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11658] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11658] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11659] <... futex resumed>)        = 0
[pid 11659] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11659] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11659] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11658] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11658] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11659] <... futex resumed>)        = 0
[pid 11659] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11659] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11659] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11658] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11658] exit_group(0)               = ?
[pid 11659] <... futex 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, child_tidptr=0x55558842d690) = 11660
./strace-static-x86_64: Process 11660 attached
[pid 11660] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11660] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11660] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11661]}, 88) = 11661
[pid 11660] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11660] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 11661 attached
 <unfinished ...>
[pid 11661] set_robust_list(0x7fee38e679a0, 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 <unfinished ...>
[pid 11660] <... futex resumed>)        = 0
[pid 11661] <... 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 11661] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11661] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11660] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11660] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11661] <... futex resumed>)        = 0
[pid 11661] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11660] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11661] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11661] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11661] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11660] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11660] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11661] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11661] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11660] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11660] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11661] <... futex resumed>)        = 0
[pid 11661] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11661] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11661] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11660] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11660] exit_group(0)               = ?
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11662
./strace-static-x86_64: Process 11662 attached
[pid 11662] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11662] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11662] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11663 attached
 => {parent_tid=[11663]}, 88) = 11663
[pid 11663] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11662] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11663] <... set_robust_list resumed>) = 0
[pid 11662] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11663] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11662] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11663] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11662] <... futex resumed>)        = 0
[pid 11662] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11662] <... futex resumed>)        = 0
[pid 11663] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11662] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11663] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11662] <... futex resumed>)        = 0
[pid 11663] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11662] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11663] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11663] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11662] <... futex resumed>)        = 0
[pid 11663] <... futex resumed>)        = 1
[pid 11662] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11663] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11662] <... futex resumed>)        = 0
[pid 11662] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11663] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11663] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11662] <... futex resumed>)        = 0
[pid 11663] <... futex resumed>)        = 1
[pid 11662] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11662] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11663] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11663] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11662] <... futex resumed>)        = 0
[pid 11663] <... futex resumed>)        = 1
[pid 11663] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11662] exit_group(0)               = ?
[pid 11663] <... futex resumed>)        = 231
[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, child_tidptr=0x55558842d690) = 11664
./strace-static-x86_64: Process 11664 attached
[pid 11664] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11664] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11664] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11665 attached
 <unfinished ...>
[pid 11665] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11664] <... clone3 resumed> => {parent_tid=[11665]}, 88) = 11665
[pid 11664] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11665] <... set_robust_list resumed>) = 0
[pid 11665] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11664] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11664] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11665] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11664] <... futex resumed>)        = 0
[pid 11665] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11664] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11665] <... 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 11665] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11664] <... futex resumed>)        = 0
[pid 11664] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11664] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11664] <... futex resumed>)        = 0
[pid 11664] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11664] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11664] <... futex resumed>)        = 0
[pid 11664] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11664] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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=0x55558842d690) = 11666
./strace-static-x86_64: Process 11666 attached
[pid 11666] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11666] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11666] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11667 attached
 => {parent_tid=[11667]}, 88) = 11667
[pid 11666] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11666] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11666] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11667] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11666] <... futex resumed>)        = 0
[pid 11666] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11667] <... futex resumed>)        = 1
[pid 11666] <... futex resumed>)        = 0
[pid 11667] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11666] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11667] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11667] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11666] <... futex resumed>)        = 0
[pid 11667] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11666] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11667] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11666] <... futex resumed>)        = 0
[pid 11667] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11666] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11667] <... futex resumed>)        = 0
[pid 11666] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11667] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11666] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11667] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11666] <... futex resumed>)        = 0
[pid 11667] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11666] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11667] <... futex resumed>)        = 0
[pid 11666] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11667] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11666] exit_group(0 <unfinished ...>
[pid 11667] <... futex resumed>)        = ?
[pid 11666] <... exit_group resumed>)   = ?
[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=0x55558842d690) = 11668
./strace-static-x86_64: Process 11668 attached
[pid 11668] set_robust_list(0x55558842d6a0, 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
executing program
[pid 11668] close(3)                    = 0
[pid 11668] write(1, "executing program\n", 18) = 18
[pid 11668] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11668] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11668] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11669 attached
 => {parent_tid=[11669]}, 88) = 11669
[pid 11669] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11668] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11668] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11668] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11669] <... set_robust_list resumed>) = 0
[pid 11669] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11668] <... futex resumed>)        = 0
[pid 11668] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11668] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11669] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11669] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11668] <... futex resumed>)        = 0
[pid 11668] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11668] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11669] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11669] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11668] <... futex resumed>)        = 0
[pid 11668] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11668] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11669] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11669] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11668] <... futex resumed>)        = 0
[pid 11668] exit_group(0 <unfinished ...>
[pid 11669] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11668] <... exit_group resumed>)   = ?
[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./strace-static-x86_64: Process 11670 attached
, child_tidptr=0x55558842d690) = 11670
[pid 11670] set_robust_list(0x55558842d6a0, 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
executing program
[pid 11670] close(3)                    = 0
[pid 11670] write(1, "executing program\n", 18) = 18
[pid 11670] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11670] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11670] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11671]}, 88) = 11671
[pid 11670] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11670] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11670] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11671 attached
 <unfinished ...>
[pid 11671] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11671] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11670] <... futex resumed>)        = 0
[pid 11670] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11670] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11671] <... futex resumed>)        = 1
[pid 11671] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11671] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11670] <... futex resumed>)        = 0
[pid 11670] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11670] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11671] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11670] <... futex resumed>)        = 0
[pid 11670] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11670] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11671] <... futex resumed>)        = 1
[pid 11671] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11671] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11670] <... futex resumed>)        = 0
[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./strace-static-x86_64: Process 11672 attached
, child_tidptr=0x55558842d690) = 11672
[pid 11672] set_robust_list(0x55558842d6a0, 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
[pid 11672] close(3)                    = 0
[pid 11672] write(1, "executing program\n", 18executing program
) = 18
[pid 11672] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11672] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11672] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11673 attached
 => {parent_tid=[11673]}, 88) = 11673
[pid 11673] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11673] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11673] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11672] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11672] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11673] <... futex resumed>)        = 0
[pid 11672] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11673] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11672] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11672] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11673] <... futex resumed>)        = 0
[pid 11673] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11672] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11673] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11673] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11673] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11672] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11672] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11673] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11673] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11672] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11672] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11673] <... futex resumed>)        = 0
[pid 11672] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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=0x55558842d690) = 11674
./strace-static-x86_64: Process 11674 attached
[pid 11674] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11674] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11674] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11675 attached
 => {parent_tid=[11675]}, 88) = 11675
[pid 11674] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11674] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11674] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11675] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11675] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11674] <... futex resumed>)        = 0
[pid 11674] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11674] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11675] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11675] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11674] <... futex resumed>)        = 0
[pid 11674] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11674] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11674] <... futex resumed>)        = 0
[pid 11674] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11674] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11675] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11675] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11674] <... futex resumed>)        = 0
[pid 11674] exit_group(0)               = ?
[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./strace-static-x86_64: Process 11676 attached
, child_tidptr=0x55558842d690) = 11676
[pid 11676] set_robust_list(0x55558842d6a0, 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(3executing program
)                    = 0
[pid 11676] write(1, "executing program\n", 18) = 18
[pid 11676] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11676] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11676] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11677]}, 88) = 11677
[pid 11676] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11676] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11676] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11677 attached
 <unfinished ...>
[pid 11677] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11677] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11676] <... futex resumed>)        = 0
[pid 11676] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11676] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11677] <... futex resumed>)        = 1
[pid 11677] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11677] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11676] <... futex resumed>)        = 0
[pid 11676] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11676] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11677] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11676] <... futex resumed>)        = 0
[pid 11676] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11676] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11677] <... futex resumed>)        = 1
[pid 11677] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11677] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11676] <... futex resumed>)        = 0
[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, child_tidptr=0x55558842d690) = 11678
./strace-static-x86_64: Process 11678 attached
[pid 11678] set_robust_list(0x55558842d6a0, 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(3executing program
)                    = 0
[pid 11678] write(1, "executing program\n", 18) = 18
[pid 11678] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11678] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11678] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11679]}, 88) = 11679
[pid 11678] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11678] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11678] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11679 attached
 <unfinished ...>
[pid 11679] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11678] <... futex resumed>)        = 0
[pid 11678] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11678] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11679] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11679] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11678] <... futex resumed>)        = 0
[pid 11678] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11678] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11678] <... futex resumed>)        = 0
[pid 11678] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11678] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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=0x55558842d690) = 11680
./strace-static-x86_64: Process 11680 attached
[pid 11680] set_robust_list(0x55558842d6a0, 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", 4)         = 4
[pid 11680] close(3)                    = 0
[pid 11680] write(1, "executing program\n", 18executing program
) = 18
[pid 11680] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11680] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11680] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11681 attached
 <unfinished ...>
[pid 11681] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11681] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11681] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11680] <... clone3 resumed> => {parent_tid=[11681]}, 88) = 11681
[pid 11680] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11680] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11681] <... futex resumed>)        = 0
[pid 11681] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11681] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11680] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11680] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11681] <... futex resumed>)        = 0
[pid 11681] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11681] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11681] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11680] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11680] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11681] <... futex resumed>)        = 0
[pid 11681] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11681] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11681] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11680] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11680] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11681] <... futex resumed>)        = 0
[pid 11681] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11680] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11681] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11681] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11680] <... futex resumed>)        = 0
[pid 11680] exit_group(0)               = ?
[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=0x55558842d690) = 11682
./strace-static-x86_64: Process 11682 attached
[pid 11682] set_robust_list(0x55558842d6a0, 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(3executing program
)                    = 0
[pid 11682] write(1, "executing program\n", 18) = 18
[pid 11682] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11682] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11682] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11683]}, 88) = 11683
[pid 11682] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11682] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11682] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11683 attached
 <unfinished ...>
[pid 11683] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11682] <... futex resumed>)        = 0
[pid 11682] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11682] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11682] <... futex resumed>)        = 0
[pid 11682] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11682] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11682] <... futex resumed>)        = 0
[pid 11682] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11682] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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=0x55558842d690) = 11684
./strace-static-x86_64: Process 11684 attached
[pid 11684] set_robust_list(0x55558842d6a0, 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
[pid 11684] close(3)                    = 0
executing program
[pid 11684] write(1, "executing program\n", 18) = 18
[pid 11684] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11684] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11684] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11685 attached
 => {parent_tid=[11685]}, 88) = 11685
[pid 11685] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11684] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11684] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11684] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11684] <... futex resumed>)        = 0
[pid 11684] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11684] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11684] <... futex resumed>)        = 0
[pid 11684] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11684] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11684] <... futex resumed>)        = 0
[pid 11684] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11684] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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=0x55558842d690) = 11686
./strace-static-x86_64: Process 11686 attached
[pid 11686] set_robust_list(0x55558842d6a0, 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", 4)         = 4
executing program
[pid 11686] close(3)                    = 0
[pid 11686] write(1, "executing program\n", 18) = 18
[pid 11686] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11686] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11686] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11687 attached
 => {parent_tid=[11687]}, 88) = 11687
[pid 11686] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11686] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11686] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11687] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11687] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11686] <... futex resumed>)        = 0
[pid 11686] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11686] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11687] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11687] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11686] <... futex resumed>)        = 0
[pid 11686] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11686] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11686] <... futex resumed>)        = 0
[pid 11686] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11686] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11687] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11687] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11686] <... futex resumed>)        = 0
[pid 11686] exit_group(0)               = ?
[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, child_tidptr=0x55558842d690) = 11688
./strace-static-x86_64: Process 11688 attached
[pid 11688] set_robust_list(0x55558842d6a0, 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) = 3
[pid 11688] write(3, "1000", 4)         = 4
[pid 11688] close(3)                    = 0
[pid 11688] write(1, "executing program\n", 18executing program
) = 18
[pid 11688] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11688] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11688] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11689 attached
 => {parent_tid=[11689]}, 88) = 11689
[pid 11689] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11688] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11688] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11688] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11689] <... set_robust_list resumed>) = 0
[pid 11689] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11688] <... futex resumed>)        = 0
[pid 11688] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11688] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11688] <... futex resumed>)        = 0
[pid 11688] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11688] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11688] <... futex resumed>)        = 0
[pid 11688] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11688] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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./strace-static-x86_64: Process 11690 attached
, child_tidptr=0x55558842d690) = 11690
[pid 11690] set_robust_list(0x55558842d6a0, 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
[pid 11690] write(1, "executing program\n", 18executing program
) = 18
[pid 11690] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11690] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11690] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11691]}, 88) = 11691
./strace-static-x86_64: Process 11691 attached
[pid 11691] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11691] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11691] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11690] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11690] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11691] <... futex resumed>)        = 0
[pid 11690] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11691] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11690] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11690] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11691] <... futex resumed>)        = 0
[pid 11691] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11691] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11691] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11690] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11690] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11691] <... futex resumed>)        = 0
[pid 11691] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11691] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11691] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11690] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11690] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11691] <... futex resumed>)        = 0
[pid 11690] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11691] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11691] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11691] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11690] <... futex resumed>)        = 0
[pid 11690] exit_group(0)               = ?
[pid 11691] <... futex resumed>)        = ? <unavailable>
[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=0x55558842d690) = 11692
[pid 11692] set_robust_list(0x55558842d6a0, 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
[pid 11692] write(1, "executing program\n", 18executing program
) = 18
[pid 11692] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11692] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11692] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11693 attached
 <unfinished ...>
[pid 11693] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11693] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11693] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11692] <... clone3 resumed> => {parent_tid=[11693]}, 88) = 11693
[pid 11692] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11692] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11693] <... futex resumed>)        = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11693] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11692] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11692] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11693] <... futex resumed>)        = 0
[pid 11693] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11693] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11693] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11692] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11692] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11693] <... futex resumed>)        = 0
[pid 11693] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11693] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11693] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11692] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11692] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11693] <... futex resumed>)        = 0
[pid 11693] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11693] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11693] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11692] futex(0x7fee38f303ec, 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, child_tidptr=0x55558842d690) = 11694
./strace-static-x86_64: Process 11694 attached
[pid 11694] set_robust_list(0x55558842d6a0, 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", 4)         = 4
[pid 11694] close(3)                    = 0
[pid 11694] write(1, "executing program\n", 18executing program
) = 18
[pid 11694] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11694] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11694] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11695 attached
 => {parent_tid=[11695]}, 88) = 11695
[pid 11694] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11694] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11694] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11695] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11694] <... futex resumed>)        = 0
[pid 11694] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11694] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11695] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11695] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11694] <... futex resumed>)        = 0
[pid 11694] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11695] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11694] <... futex resumed>)        = 0
[pid 11694] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11695] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11695] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11694] <... futex resumed>)        = 0
[pid 11694] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11694] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11695] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11695] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11695] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11694] <... futex resumed>)        = 0
[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=0x55558842d690) = 11696
./strace-static-x86_64: Process 11696 attached
[pid 11696] set_robust_list(0x55558842d6a0, 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
[pid 11696] close(3)                    = 0
[pid 11696] write(1, "executing program\n", 18executing program
) = 18
[pid 11696] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11696] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11696] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11697 attached
 => {parent_tid=[11697]}, 88) = 11697
[pid 11697] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11697] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11697] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11696] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11696] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11697] <... futex resumed>)        = 0
[pid 11696] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11697] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11697] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11696] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11696] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11697] <... futex resumed>)        = 0
[pid 11697] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11697] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11697] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11696] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11696] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11697] <... futex resumed>)        = 0
[pid 11696] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11697] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11697] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11696] <... futex resumed>)        = 0
[pid 11697] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11696] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11697] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11696] <... futex resumed>)        = 0
[pid 11697] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11696] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11697] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11697] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11696] <... futex resumed>)        = 0
[pid 11697] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11696] exit_group(0)               = ?
[pid 11697] <... futex 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./strace-static-x86_64: Process 11698 attached
, child_tidptr=0x55558842d690) = 11698
[pid 11698] set_robust_list(0x55558842d6a0, 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
executing program
[pid 11698] close(3)                    = 0
[pid 11698] write(1, "executing program\n", 18) = 18
[pid 11698] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11698] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11698] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11699]}, 88) = 11699
[pid 11698] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11698] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11698] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11699 attached
 <unfinished ...>
[pid 11699] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11698] <... futex resumed>)        = 0
[pid 11698] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11698] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11699] <... futex resumed>)        = 1
[pid 11699] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11699] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11698] <... futex resumed>)        = 0
[pid 11698] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11698] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11699] <... futex resumed>)        = 1
[pid 11699] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11699] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11698] <... futex resumed>)        = 0
[pid 11698] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11698] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11699] <... futex resumed>)        = 1
[pid 11699] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11699] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11698] <... futex resumed>)        = 0
[pid 11698] exit_group(0)               = ?
[pid 11699] <... futex 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=0x55558842d690) = 11700
./strace-static-x86_64: Process 11700 attached
[pid 11700] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11700] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11700] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11701 attached
 => {parent_tid=[11701]}, 88) = 11701
[pid 11701] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11701] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11701] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11700] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11700] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11701] <... futex resumed>)        = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11701] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11700] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11700] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11701] <... futex resumed>)        = 0
[pid 11701] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11701] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11701] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11700] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11700] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11701] <... futex resumed>)        = 0
[pid 11701] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11701] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11701] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11700] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11700] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11701] <... futex resumed>)        = 0
[pid 11701] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11701] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11701] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11700] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11700] exit_group(0)               = ?
[pid 11701] <... futex 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./strace-static-x86_64: Process 11702 attached
, child_tidptr=0x55558842d690) = 11702
[pid 11702] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11702] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11702] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11703 attached
 => {parent_tid=[11703]}, 88) = 11703
[pid 11702] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11702] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11702] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11703] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11703] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11703] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11702] <... futex resumed>)        = 0
[pid 11702] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11702] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11703] <... futex resumed>)        = 1
[pid 11703] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11703] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11702] <... futex resumed>)        = 0
[pid 11702] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11702] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11703] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11702] <... futex resumed>)        = 0
[pid 11702] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11702] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11703] <... futex resumed>)        = 1
[pid 11703] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11703] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11702] <... futex resumed>)        = 0
[pid 11702] exit_group(0)               = ?
[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, child_tidptr=0x55558842d690) = 11704
./strace-static-x86_64: Process 11704 attached
[pid 11704] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11704] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11704] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11705 attached
 => {parent_tid=[11705]}, 88) = 11705
[pid 11705] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11705] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11705] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11704] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11704] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11705] <... futex resumed>)        = 0
[pid 11704] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11705] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11704] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11704] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11705] <... futex resumed>)        = 0
[pid 11705] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11705] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11705] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11704] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11704] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11705] <... futex resumed>)        = 0
[pid 11705] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11705] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11705] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11704] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11704] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11705] <... futex resumed>)        = 0
[pid 11705] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11704] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11705] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11705] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11705] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11704] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11704] exit_group(0)               = ?
[pid 11705] <... futex resumed>)        = ?
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11706
./strace-static-x86_64: Process 11706 attached
[pid 11706] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11706] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11706] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11707 attached
 => {parent_tid=[11707]}, 88) = 11707
[pid 11707] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11707] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11707] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11706] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11706] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11707] <... futex resumed>)        = 0
[pid 11706] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11707] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11706] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11706] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11707] <... futex resumed>)        = 0
[pid 11707] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11707] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11707] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11706] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11706] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11707] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11707] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11706] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11706] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11707] <... futex resumed>)        = 0
[pid 11707] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11707] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11707] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11706] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11706] exit_group(0)               = ?
[pid 11707] <... futex resumed>)        = ?
[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=0x55558842d690) = 11708
./strace-static-x86_64: Process 11708 attached
[pid 11708] set_robust_list(0x55558842d6a0, 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
executing program
[pid 11708] write(1, "executing program\n", 18) = 18
[pid 11708] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11708] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11708] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11709]}, 88) = 11709
[pid 11708] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11708] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11708] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11709 attached
 <unfinished ...>
[pid 11709] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11708] <... futex resumed>)        = 0
[pid 11708] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11708] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11708] <... futex resumed>)        = 0
[pid 11708] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11708] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11708] <... futex resumed>)        = 0
[pid 11708] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11708] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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=0x55558842d690) = 11710
./strace-static-x86_64: Process 11710 attached
[pid 11710] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11710] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11710] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11711]}, 88) = 11711
[pid 11710] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11710] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11710] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11711 attached
 <unfinished ...>
[pid 11711] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11710] <... futex resumed>)        = 0
[pid 11710] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11710] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11710] <... futex resumed>)        = 0
[pid 11710] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11710] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11710] <... futex resumed>)        = 0
[pid 11710] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11710] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11710] <... futex resumed>)        = 0
[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=0x55558842d690) = 11712
./strace-static-x86_64: Process 11712 attached
[pid 11712] set_robust_list(0x55558842d6a0, 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
[pid 11712] write(1, "executing program\n", 18executing program
) = 18
[pid 11712] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11712] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11712] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11713 attached
 => {parent_tid=[11713]}, 88) = 11713
[pid 11712] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11712] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11712] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11713] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11713] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11713] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11712] <... futex resumed>)        = 0
[pid 11712] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11712] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11713] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11713] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11712] <... futex resumed>)        = 0
[pid 11712] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11713] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11712] <... futex resumed>)        = 0
[pid 11712] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11713] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11713] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11712] <... futex resumed>)        = 0
[pid 11712] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11713] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11712] <... futex resumed>)        = 0
[pid 11712] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11713] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11712] <... futex resumed>)        = 0
[pid 11712] exit_group(0)               = ?
[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=0x55558842d690) = 11714
./strace-static-x86_64: Process 11714 attached
[pid 11714] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11714] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11714] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11715 attached
 => {parent_tid=[11715]}, 88) = 11715
[pid 11715] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11715] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11715] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11714] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11714] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11715] <... futex resumed>)        = 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 11714] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11715] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11715] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11714] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11714] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11715] <... futex resumed>)        = 0
[pid 11715] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11715] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11715] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11714] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11714] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11715] <... futex resumed>)        = 0
[pid 11714] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11715] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11714] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11714] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11715] <... futex resumed>)        = 0
[pid 11715] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11715] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11715] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11714] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[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=0x55558842d690) = 11716
./strace-static-x86_64: Process 11716 attached
[pid 11716] set_robust_list(0x55558842d6a0, 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
executing program
[pid 11716] write(1, "executing program\n", 18) = 18
[pid 11716] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11716] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11716] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11717 attached
 => {parent_tid=[11717]}, 88) = 11717
[pid 11716] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11716] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11716] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11717] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11717] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11716] <... futex resumed>)        = 0
[pid 11716] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11716] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11717] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11717] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11717] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11716] <... futex resumed>)        = 0
[pid 11716] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11716] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11716] <... futex resumed>)        = 0
[pid 11716] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11716] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11716] <... futex resumed>)        = 0
[pid 11717] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11716] exit_group(0)               = ?
[pid 11717] <... futex resumed>)        = ?
[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=0x55558842d690) = 11718
./strace-static-x86_64: Process 11718 attached
[pid 11718] set_robust_list(0x55558842d6a0, 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", 4)         = 4
[pid 11718] close(3)                    = 0
[pid 11718] write(1, "executing program\n", 18executing program
) = 18
[pid 11718] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11718] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11718] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11719 attached
 => {parent_tid=[11719]}, 88) = 11719
[pid 11719] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11719] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11719] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11718] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11718] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11719] <... futex resumed>)        = 0
[pid 11719] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11718] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11719] <... 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 11719] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11719] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11718] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11718] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11719] <... futex resumed>)        = 0
[pid 11719] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11719] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11719] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11718] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11718] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11719] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11718] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11719] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11718] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11718] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11719] <... futex resumed>)        = 0
[pid 11718] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11719] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11719] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11719] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11718] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[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=0x55558842d690) = 11720
./strace-static-x86_64: Process 11720 attached
[pid 11720] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11720] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11720] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11721 attached
 <unfinished ...>
[pid 11721] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11721] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11721] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11720] <... clone3 resumed> => {parent_tid=[11721]}, 88) = 11721
[pid 11720] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11720] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11721] <... futex resumed>)        = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11721] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11720] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11720] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11721] <... futex resumed>)        = 0
[pid 11721] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11721] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11721] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11720] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11720] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11721] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11721] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11720] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11720] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11721] <... futex resumed>)        = 0
[pid 11721] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11720] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11721] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11721] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11721] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11720] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11720] exit_group(0)               = ?
[pid 11721] <... futex resumed>)        = ?
[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=0x55558842d690) = 11722
./strace-static-x86_64: Process 11722 attached
[pid 11722] set_robust_list(0x55558842d6a0, 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
executing program
[pid 11722] close(3)                    = 0
[pid 11722] write(1, "executing program\n", 18) = 18
[pid 11722] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11722] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11722] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11723]}, 88) = 11723
[pid 11722] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11722] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11722] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11723 attached
 <unfinished ...>
[pid 11723] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11722] <... futex resumed>)        = 0
[pid 11722] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11722] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11723] <... futex resumed>)        = 1
[pid 11723] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11723] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11722] <... futex resumed>)        = 0
[pid 11722] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11722] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11723] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11722] <... futex resumed>)        = 0
[pid 11722] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11722] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11723] <... futex resumed>)        = 1
[pid 11723] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11723] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11722] <... futex resumed>)        = 0
[pid 11722] exit_group(0)               = ?
[pid 11723] <... futex resumed>)        = ?
[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./strace-static-x86_64: Process 11724 attached
, child_tidptr=0x55558842d690) = 11724
[pid 11724] set_robust_list(0x55558842d6a0, 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
[pid 11724] write(1, "executing program\n", 18executing program
) = 18
[pid 11724] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11724] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11724] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11725 attached
 => {parent_tid=[11725]}, 88) = 11725
[pid 11725] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11725] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11725] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11724] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11724] futex(0x7fee38f303e8, 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, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11725] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11724] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11724] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11725] <... futex resumed>)        = 0
[pid 11725] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11725] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11725] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11724] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11724] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11725] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11725] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11724] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11724] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11725] <... futex resumed>)        = 0
[pid 11725] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11725] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11725] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11724] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11724] exit_group(0)               = ?
[pid 11725] <... futex resumed>)        = ?
[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=0x55558842d690) = 11726
./strace-static-x86_64: Process 11726 attached
[pid 11726] set_robust_list(0x55558842d6a0, 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
executing program
[pid 11726] write(1, "executing program\n", 18) = 18
[pid 11726] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11726] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11726] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11727 attached
 => {parent_tid=[11727]}, 88) = 11727
[pid 11726] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11726] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11726] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11727] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11726] <... futex resumed>)        = 0
[pid 11726] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11726] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11727] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11727] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11726] <... futex resumed>)        = 0
[pid 11726] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11726] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11726] <... futex resumed>)        = 0
[pid 11726] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11726] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11727] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11727] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11726] <... futex resumed>)        = 0
[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=0x55558842d690) = 11728
./strace-static-x86_64: Process 11728 attached
[pid 11728] set_robust_list(0x55558842d6a0, 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(3)                    = 0
[pid 11728] write(1, "executing program\n", 18executing program
) = 18
[pid 11728] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11728] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11728] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11729 attached
 <unfinished ...>
[pid 11729] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11729] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11729] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11728] <... clone3 resumed> => {parent_tid=[11729]}, 88) = 11729
[pid 11728] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11728] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11729] <... futex resumed>)        = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11729] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11728] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11728] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11729] <... futex resumed>)        = 0
[pid 11729] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11729] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11729] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11728] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11728] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11729] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11729] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11728] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11728] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11729] <... futex resumed>)        = 0
[pid 11729] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11729] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11729] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11728] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11728] exit_group(0)               = ?
[pid 11729] <... futex resumed>)        = ?
[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=0x55558842d690) = 11730
./strace-static-x86_64: Process 11730 attached
[pid 11730] set_robust_list(0x55558842d6a0, 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
executing program
[pid 11730] close(3)                    = 0
[pid 11730] write(1, "executing program\n", 18) = 18
[pid 11730] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11730] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11730] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11731 attached
 => {parent_tid=[11731]}, 88) = 11731
[pid 11731] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11730] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11730] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11730] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11731] <... set_robust_list resumed>) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11730] <... futex resumed>)        = 0
[pid 11730] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11730] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11731] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11731] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11730] <... futex resumed>)        = 0
[pid 11730] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11730] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11730] <... futex resumed>)        = 0
[pid 11730] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11730] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11731] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11731] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11730] <... futex resumed>)        = 0
[pid 11730] exit_group(0)               = ?
[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=0x55558842d690) = 11732
./strace-static-x86_64: Process 11732 attached
[pid 11732] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11732] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11732] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11733 attached
 => {parent_tid=[11733]}, 88) = 11733
[pid 11733] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11733] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11733] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11732] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11732] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11733] <... futex resumed>)        = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11733] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11732] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11732] futex(0x7fee38f303e8, 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 11733] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11733] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11732] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11732] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11733] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11732] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11732] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11733] <... futex resumed>)        = 0
[pid 11733] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11733] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11733] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11732] futex(0x7fee38f303ec, 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, child_tidptr=0x55558842d690) = 11734
./strace-static-x86_64: Process 11734 attached
[pid 11734] set_robust_list(0x55558842d6a0, 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", 4)         = 4
[pid 11734] close(3)                    = 0
[pid 11734] write(1, "executing program\n", 18executing program
) = 18
[pid 11734] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11734] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11734] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11735 attached
 => {parent_tid=[11735]}, 88) = 11735
[pid 11735] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11735] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11735] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11734] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11734] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11735] <... futex resumed>)        = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11734] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11735] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11734] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11734] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11735] <... futex resumed>)        = 0
[pid 11735] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11735] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11735] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11734] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11734] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11735] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11735] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11734] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11734] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11735] <... futex resumed>)        = 0
[pid 11735] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11734] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11735] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11735] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11735] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11734] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[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=0x55558842d690) = 11736
./strace-static-x86_64: Process 11736 attached
[pid 11736] set_robust_list(0x55558842d6a0, 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
[pid 11736] write(1, "executing program\n", 18executing program
) = 18
[pid 11736] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11736] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11736] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11737 attached
 <unfinished ...>
[pid 11737] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11737] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11737] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11736] <... clone3 resumed> => {parent_tid=[11737]}, 88) = 11737
[pid 11736] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11736] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11737] <... futex resumed>)        = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11737] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11736] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11736] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11737] <... futex resumed>)        = 0
[pid 11737] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11737] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11737] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11736] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11736] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11737] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11737] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11736] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11736] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11737] <... futex resumed>)        = 0
[pid 11737] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11737] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11737] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11736] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11736] exit_group(0)               = ?
[pid 11737] <... futex resumed>)        = ?
[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=0x55558842d690) = 11738
./strace-static-x86_64: Process 11738 attached
[pid 11738] set_robust_list(0x55558842d6a0, 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
[pid 11738] write(1, "executing program\n", 18executing program
) = 18
[pid 11738] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11738] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11738] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11739 attached
 => {parent_tid=[11739]}, 88) = 11739
[pid 11739] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11739] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11739] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11738] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11738] futex(0x7fee38f303e8, 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(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11738] <... futex resumed>)        = 0
[pid 11738] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11738] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11738] <... futex resumed>)        = 0
[pid 11738] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11738] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11738] <... futex resumed>)        = 0
[pid 11738] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11738] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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=0x55558842d690) = 11740
./strace-static-x86_64: Process 11740 attached
[pid 11740] set_robust_list(0x55558842d6a0, 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
[pid 11740] write(1, "executing program\n", 18executing program
) = 18
[pid 11740] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11740] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11740] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11741]}, 88) = 11741
[pid 11740] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11740] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11740] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11741 attached
 <unfinished ...>
[pid 11741] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11740] <... futex resumed>)        = 0
[pid 11740] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11740] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11741] <... futex resumed>)        = 1
[pid 11741] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11741] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11740] <... futex resumed>)        = 0
[pid 11740] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11740] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11740] <... futex resumed>)        = 0
[pid 11741] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11740] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11740] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11741] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11741] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11740] <... futex resumed>)        = 0
[pid 11740] exit_group(0)               = ?
[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} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11742 attached
, child_tidptr=0x55558842d690) = 11742
[pid 11742] set_robust_list(0x55558842d6a0, 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
executing program
[pid 11742] write(1, "executing program\n", 18) = 18
[pid 11742] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11742] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11742] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11743 attached
 => {parent_tid=[11743]}, 88) = 11743
[pid 11742] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11742] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11742] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11743] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11743] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11743] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11742] <... futex resumed>)        = 0
[pid 11742] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11742] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11743] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11743] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11742] <... futex resumed>)        = 0
[pid 11742] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11742] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11742] <... futex resumed>)        = 0
[pid 11742] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11742] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11743] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11743] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11742] <... futex resumed>)        = 0
[pid 11743] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11744
./strace-static-x86_64: Process 11744 attached
[pid 11744] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11744] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11744] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11745 attached
 => {parent_tid=[11745]}, 88) = 11745
[pid 11744] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11744] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11744] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11745] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11744] <... futex resumed>)        = 0
[pid 11744] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11744] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11745] <... futex resumed>)        = 1
[pid 11745] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11745] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11744] <... futex resumed>)        = 0
[pid 11744] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11744] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11745] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11744] <... futex resumed>)        = 0
[pid 11744] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11744] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11745] <... futex resumed>)        = 1
[pid 11745] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11745] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11744] <... futex resumed>)        = 0
[pid 11744] exit_group(0)               = ?
[pid 11745] <... futex resumed>)        = ?
[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=0x55558842d690) = 11746
./strace-static-x86_64: Process 11746 attached
[pid 11746] set_robust_list(0x55558842d6a0, 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
[pid 11746] write(1, "executing program\n", 18executing program
) = 18
[pid 11746] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11746] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11746] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11747 attached
 => {parent_tid=[11747]}, 88) = 11747
[pid 11747] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11747] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11747] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11746] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11746] futex(0x7fee38f303e8, 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, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11747] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11746] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11746] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11746] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11746] <... futex resumed>)        = 0
[pid 11746] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11746] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11746] <... futex resumed>)        = 0
[pid 11746] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11746] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11747] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11747] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11746] <... futex resumed>)        = 0
[pid 11746] exit_group(0 <unfinished ...>
[pid 11747] <... futex resumed>)        = 1
[pid 11746] <... exit_group 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=0x55558842d690) = 11748
./strace-static-x86_64: Process 11748 attached
[pid 11748] set_robust_list(0x55558842d6a0, 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(3executing program
)                    = 0
[pid 11748] write(1, "executing program\n", 18) = 18
[pid 11748] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11748] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11748] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11749 attached
 => {parent_tid=[11749]}, 88) = 11749
[pid 11748] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11748] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11748] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11749] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11749] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11748] <... futex resumed>)        = 0
[pid 11748] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11748] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11749] <... futex resumed>)        = 1
[pid 11749] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11749] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11748] <... futex resumed>)        = 0
[pid 11748] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11748] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11749] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11748] <... futex resumed>)        = 0
[pid 11748] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11748] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11749] <... futex resumed>)        = 1
[pid 11749] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11749] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11748] <... futex resumed>)        = 0
[pid 11749] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11748] exit_group(0)               = ?
[pid 11749] <... futex 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=0x55558842d690) = 11750
./strace-static-x86_64: Process 11750 attached
[pid 11750] set_robust_list(0x55558842d6a0, 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
executing program
[pid 11750] write(1, "executing program\n", 18) = 18
[pid 11750] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11750] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11750] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11751]}, 88) = 11751
[pid 11750] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11750] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11750] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11751 attached
 <unfinished ...>
[pid 11751] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11751] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11750] <... futex resumed>)        = 0
[pid 11750] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11750] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11751] <... futex resumed>)        = 1
[pid 11751] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11751] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11750] <... futex resumed>)        = 0
[pid 11750] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11750] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11751] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11750] <... futex resumed>)        = 0
[pid 11750] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11750] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11751] <... futex resumed>)        = 1
[pid 11751] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11751] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11750] <... futex resumed>)        = 0
[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, child_tidptr=0x55558842d690) = 11752
./strace-static-x86_64: Process 11752 attached
[pid 11752] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11752] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11752] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11753]}, 88) = 11753
[pid 11752] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11752] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11752] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11753 attached
 <unfinished ...>
[pid 11753] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11753] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11753] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11752] <... futex resumed>)        = 0
[pid 11752] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11752] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11753] <... futex resumed>)        = 1
[pid 11753] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11753] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11752] <... futex resumed>)        = 0
[pid 11752] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11752] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11753] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11752] <... futex resumed>)        = 0
[pid 11752] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11752] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11753] <... futex resumed>)        = 1
[pid 11753] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11753] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11752] <... futex resumed>)        = 0
[pid 11752] exit_group(0)               = ?
[pid 11753] <... futex resumed>)        = ?
[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, child_tidptr=0x55558842d690) = 11754
./strace-static-x86_64: Process 11754 attached
[pid 11754] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11754] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11754] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11755 attached
 => {parent_tid=[11755]}, 88) = 11755
[pid 11754] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11754] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11754] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11755] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11754] <... futex resumed>)        = 0
[pid 11754] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11754] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11754] <... futex resumed>)        = 0
[pid 11755] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11754] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11754] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11755] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11754] <... futex resumed>)        = 0
[pid 11754] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11754] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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, child_tidptr=0x55558842d690) = 11756
./strace-static-x86_64: Process 11756 attached
[pid 11756] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11756] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11756] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11757]}, 88) = 11757
./strace-static-x86_64: Process 11757 attached
[pid 11757] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11757] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11757] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11756] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11756] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11757] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11756] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11756] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11757] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11756] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11756] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11757] <... futex resumed>)        = 0
[pid 11756] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11757] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11757] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11757] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11756] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11756] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11757] <... futex resumed>)        = 0
[pid 11757] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11756] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11757] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11757] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11757] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11756] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[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=0x55558842d690) = 11758
./strace-static-x86_64: Process 11758 attached
[pid 11758] set_robust_list(0x55558842d6a0, 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
[pid 11758] write(1, "executing program\n", 18executing program
) = 18
[pid 11758] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11758] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11758] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11759 attached
 => {parent_tid=[11759]}, 88) = 11759
[pid 11759] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11759] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11759] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11758] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11758] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11759] <... futex resumed>)        = 0
[pid 11758] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11759] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11758] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11758] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11759] <... futex resumed>)        = 0
[pid 11759] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11759] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11759] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11758] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11758] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11759] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11759] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11758] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11758] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11759] <... futex resumed>)        = 0
[pid 11758] <... futex resumed>)        = 1
[pid 11758] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11759] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11759] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11758] <... futex resumed>)        = 0
[pid 11759] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11758] exit_group(0)               = ?
[pid 11759] <... futex 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=0x55558842d690) = 11760
./strace-static-x86_64: Process 11760 attached
[pid 11760] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11760] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11760] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11761]}, 88) = 11761
./strace-static-x86_64: Process 11761 attached
[pid 11761] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11761] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11761] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11760] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11760] futex(0x7fee38f303e8, 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 <unfinished ...>
[pid 11760] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11761] <... 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 11761] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11761] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11760] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11760] futex(0x7fee38f303e8, 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 11761] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11761] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11760] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11760] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11760] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11761] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11760] <... futex resumed>)        = 0
[pid 11760] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11760] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11761] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11761] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11760] <... futex resumed>)        = 0
[pid 11760] exit_group(0)               = ?
[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=0x55558842d690) = 11762
./strace-static-x86_64: Process 11762 attached
[pid 11762] set_robust_list(0x55558842d6a0, 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(3)                    = 0
[pid 11762] write(1, "executing program\n", 18executing program
) = 18
[pid 11762] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11762] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11762] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11763 attached
 => {parent_tid=[11763]}, 88) = 11763
[pid 11763] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11763] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11763] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11762] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11762] futex(0x7fee38f303e8, 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, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11763] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11762] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11762] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11763] <... futex resumed>)        = 0
[pid 11763] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11763] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11763] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11762] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11762] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11763] <... futex resumed>)        = 0
[pid 11762] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11763] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11762] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11762] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11763] <... futex resumed>)        = 0
[pid 11762] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11763] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11762] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11762] exit_group(0)               = ?
[pid 11763] <... futex resumed>)        = ?
[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=0x55558842d690) = 11764
./strace-static-x86_64: Process 11764 attached
[pid 11764] set_robust_list(0x55558842d6a0, 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
executing program
[pid 11764] write(1, "executing program\n", 18) = 18
[pid 11764] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11764] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11764] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11765]}, 88) = 11765
[pid 11764] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11764] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11764] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11765 attached
 <unfinished ...>
[pid 11765] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11764] <... futex resumed>)        = 0
[pid 11764] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11764] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11765] <... futex resumed>)        = 1
[pid 11765] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11765] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11764] <... futex resumed>)        = 0
[pid 11764] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11764] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11765] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11764] <... futex resumed>)        = 0
[pid 11764] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11764] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11765] <... futex resumed>)        = 1
[pid 11765] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11765] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11764] <... futex resumed>)        = 0
[pid 11764] exit_group(0)               = ?
[pid 11765] <... futex resumed>)        = ?
[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=0x55558842d690) = 11766
./strace-static-x86_64: Process 11766 attached
[pid 11766] set_robust_list(0x55558842d6a0, 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
[pid 11766] write(1, "executing program\n", 18executing program
) = 18
[pid 11766] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11766] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11766] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11767 attached
 => {parent_tid=[11767]}, 88) = 11767
[pid 11767] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11767] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11767] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11766] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11766] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11767] <... futex resumed>)        = 0
[pid 11766] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11767] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11766] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11766] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11767] <... futex resumed>)        = 0
[pid 11767] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11767] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11767] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11766] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11766] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11767] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11767] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11766] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11766] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11767] <... futex resumed>)        = 0
[pid 11766] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11767] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11767] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11767] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11766] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[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, child_tidptr=0x55558842d690) = 11768
./strace-static-x86_64: Process 11768 attached
[pid 11768] set_robust_list(0x55558842d6a0, 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
[pid 11768] write(1, "executing program\n", 18executing program
) = 18
[pid 11768] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11768] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11768] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11769 attached
 => {parent_tid=[11769]}, 88) = 11769
[pid 11769] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11768] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11769] <... set_robust_list resumed>) = 0
[pid 11768] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11769] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11768] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11769] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11768] <... futex resumed>)        = 0
[pid 11769] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11768] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11769] <... 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 11769] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11768] <... futex resumed>)        = 0
[pid 11768] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11768] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11769] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11769] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11768] <... futex resumed>)        = 0
[pid 11768] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11768] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11769] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11769] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11768] <... futex resumed>)        = 0
[pid 11769] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11768] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11768] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11768] <... futex resumed>)        = 0
[pid 11768] exit_group(0)               = ?
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 11770 attached
, child_tidptr=0x55558842d690) = 11770
[pid 11770] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11770] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11770] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11771]}, 88) = 11771
./strace-static-x86_64: Process 11771 attached
[pid 11771] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11771] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11771] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11770] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11770] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11771] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11771] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11770] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11770] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11771] <... futex resumed>)        = 0
[pid 11771] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11770] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11771] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11771] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11770] <... futex resumed>)        = 0
[pid 11770] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11770] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11771] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11771] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11770] <... futex resumed>)        = 0
[pid 11770] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11770] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11770] <... futex resumed>)        = 0
[pid 11771] futex(0x7fee38f303e8, 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=0x55558842d690) = 11772
./strace-static-x86_64: Process 11772 attached
[pid 11772] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11772] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11772] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11773 attached
 => {parent_tid=[11773]}, 88) = 11773
[pid 11773] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11773] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11773] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11772] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11772] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11773] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11772] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11772] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11773] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11772] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11772] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11773] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11772] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11772] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11773] <... futex resumed>)        = 0
[pid 11773] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11773] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11773] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11772] futex(0x7fee38f303ec, 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, child_tidptr=0x55558842d690) = 11774
./strace-static-x86_64: Process 11774 attached
[pid 11774] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11774] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11774] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11775 attached
 => {parent_tid=[11775]}, 88) = 11775
[pid 11775] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11775] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11775] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11774] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11774] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11775] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11774] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11774] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11775] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11774] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11774] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11775] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11774] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11774] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11775] <... futex resumed>)        = 0
[pid 11775] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11775] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11775] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11774] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11774] exit_group(0)               = ?
[pid 11775] <... futex 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=0x55558842d690) = 11777
./strace-static-x86_64: Process 11777 attached
[pid 11777] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11777] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11777] setpgid(0, 0)               = 0
[pid 11777] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11777] write(3, "1000", 4executing program
)         = 4
[pid 11777] close(3)                    = 0
[pid 11777] write(1, "executing program\n", 18) = 18
[pid 11777] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11777] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11777] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11777] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11777] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11777] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11777] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11778 attached
 => {parent_tid=[11778]}, 88) = 11778
[pid 11777] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11777] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11777] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11778] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11778] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11778] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11778] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11777] <... futex resumed>)        = 0
[pid 11777] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11777] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11778] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11778] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11777] <... futex resumed>)        = 0
[pid 11777] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11777] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11778] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11778] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11777] <... futex resumed>)        = 0
[pid 11777] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11777] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11778] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11778] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11777] <... futex resumed>)        = 0
[pid 11777] exit_group(0)               = ?
[pid 11778] +++ exited with 0 +++
[pid 11777] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11777, si_uid=0, si_status=0, 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 11779 attached
, child_tidptr=0x55558842d690) = 11779
[pid 11779] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11779] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11779] setpgid(0, 0)               = 0
[pid 11779] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11779] write(3, "1000", 4)         = 4
[pid 11779] close(3)                    = 0
[pid 11779] write(1, "executing program\n", 18executing program
) = 18
[pid 11779] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11779] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11779] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11779] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11779] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11779] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11779] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11780 attached
 => {parent_tid=[11780]}, 88) = 11780
[pid 11780] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11780] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11780] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11779] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11779] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11780] <... futex resumed>)        = 0
[pid 11780] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11780] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11780] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11779] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11779] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11780] <... futex resumed>)        = 0
[pid 11780] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11780] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11780] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11779] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11779] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11780] <... futex resumed>)        = 0
[pid 11780] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11780] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11780] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11779] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11779] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11780] <... futex resumed>)        = 0
[pid 11780] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11780] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11780] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11779] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11779] exit_group(0)               = ?
[pid 11780] <... futex resumed>)        = ?
[pid 11780] +++ exited with 0 +++
[pid 11779] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11779, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11781
./strace-static-x86_64: Process 11781 attached
[pid 11781] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11781] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11781] setpgid(0, 0)               = 0
[pid 11781] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11781] write(3, "1000", 4)         = 4
[pid 11781] close(3)                    = 0
[pid 11781] write(1, "executing program\n", 18executing program
) = 18
[pid 11781] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11781] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11781] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11781] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11781] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11781] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11781] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11782 attached
 <unfinished ...>
[pid 11782] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11782] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11782] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11781] <... clone3 resumed> => {parent_tid=[11782]}, 88) = 11782
[pid 11781] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11781] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11782] <... futex resumed>)        = 0
[pid 11782] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11782] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11782] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11781] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11781] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11782] <... futex resumed>)        = 0
[pid 11782] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11782] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11782] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11781] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11781] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11782] <... futex resumed>)        = 0
[pid 11782] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11782] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11782] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11781] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11781] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11782] <... futex resumed>)        = 0
[pid 11782] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11782] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11782] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11781] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11781] exit_group(0)               = ?
[pid 11782] <... futex resumed>)        = ?
[pid 11782] +++ exited with 0 +++
[pid 11781] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11781, 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=0x55558842d690) = 11783
./strace-static-x86_64: Process 11783 attached
[pid 11783] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11783] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11783] setpgid(0, 0)               = 0
[pid 11783] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11783] write(3, "1000", 4)         = 4
[pid 11783] close(3)                    = 0
[pid 11783] write(1, "executing program\n", 18executing program
) = 18
[pid 11783] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11783] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11783] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11783] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11783] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11783] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11783] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11784 attached
 <unfinished ...>
[pid 11784] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11784] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11784] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11783] <... clone3 resumed> => {parent_tid=[11784]}, 88) = 11784
[pid 11783] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11783] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11784] <... futex resumed>)        = 0
[pid 11784] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11784] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11784] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11783] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11783] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11784] <... futex resumed>)        = 0
[pid 11784] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11784] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11784] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11783] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11783] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11784] <... futex resumed>)        = 0
[pid 11784] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11784] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11784] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11783] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11783] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11784] <... futex resumed>)        = 0
[pid 11784] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11784] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11784] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11783] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11783] exit_group(0)               = ?
[pid 11784] <... futex resumed>)        = ?
[pid 11784] +++ exited with 0 +++
[pid 11783] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11783, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11785
./strace-static-x86_64: Process 11785 attached
[pid 11785] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11785] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11785] setpgid(0, 0)               = 0
[pid 11785] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11785] write(3, "1000", 4)         = 4
[pid 11785] close(3)                    = 0
[pid 11785] write(1, "executing program\n", 18executing program
) = 18
[pid 11785] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11785] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11785] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11785] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11785] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11785] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11785] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11786 attached
 => {parent_tid=[11786]}, 88) = 11786
[pid 11785] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11785] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11785] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11786] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11786] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11786] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11786] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11785] <... futex resumed>)        = 0
[pid 11785] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11785] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11786] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11786] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11785] <... futex resumed>)        = 0
[pid 11785] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11785] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11786] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11786] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11785] <... futex resumed>)        = 0
[pid 11785] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11785] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11786] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11786] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11785] <... futex resumed>)        = 0
[pid 11785] exit_group(0)               = ?
[pid 11786] +++ exited with 0 +++
[pid 11785] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11785, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11787
./strace-static-x86_64: Process 11787 attached
[pid 11787] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11787] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11787] setpgid(0, 0)               = 0
[pid 11787] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11787] write(3, "1000", 4)         = 4
[pid 11787] close(3)                    = 0
executing program
[pid 11787] write(1, "executing program\n", 18) = 18
[pid 11787] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11787] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11787] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11787] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11787] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11787] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11787] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11788]}, 88) = 11788
[pid 11787] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11787] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11787] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11788 attached
 <unfinished ...>
[pid 11788] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11788] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11788] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11788] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11787] <... futex resumed>)        = 0
[pid 11787] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11787] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11788] <... futex resumed>)        = 1
[pid 11788] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11788] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11787] <... futex resumed>)        = 0
[pid 11787] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11787] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11788] <... futex resumed>)        = 1
[pid 11788] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11788] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11787] <... futex resumed>)        = 0
[pid 11787] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11787] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11788] <... futex resumed>)        = 1
[pid 11788] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11788] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11787] <... futex resumed>)        = 0
[pid 11787] exit_group(0)               = ?
[pid 11788] <... futex resumed>)        = ?
[pid 11788] +++ exited with 0 +++
[pid 11787] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11787, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11789
./strace-static-x86_64: Process 11789 attached
[pid 11789] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11789] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11789] setpgid(0, 0)               = 0
[pid 11789] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11789] write(3, "1000", 4)         = 4
[pid 11789] close(3)                    = 0
[pid 11789] write(1, "executing program\n", 18executing program
) = 18
[pid 11789] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11789] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11789] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11789] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11789] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11789] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11789] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11790 attached
 <unfinished ...>
[pid 11790] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11790] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11790] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11789] <... clone3 resumed> => {parent_tid=[11790]}, 88) = 11790
[pid 11789] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11789] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11790] <... futex resumed>)        = 0
[pid 11790] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11790] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11790] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11789] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11789] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11790] <... futex resumed>)        = 0
[pid 11790] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11789] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11790] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11789] <... futex resumed>)        = 0
[pid 11789] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11789] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11790] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11790] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11789] <... futex resumed>)        = 0
[pid 11789] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11789] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11790] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11790] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11789] <... futex resumed>)        = 0
[pid 11789] exit_group(0)               = ?
[pid 11790] +++ exited with 0 +++
[pid 11789] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11789, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11791
./strace-static-x86_64: Process 11791 attached
[pid 11791] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11791] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11791] setpgid(0, 0)               = 0
[pid 11791] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11791] write(3, "1000", 4)         = 4
[pid 11791] close(3)                    = 0
executing program
[pid 11791] write(1, "executing program\n", 18) = 18
[pid 11791] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11791] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11791] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11791] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11791] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11791] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11791] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11792]}, 88) = 11792
[pid 11791] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11791] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11791] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11792 attached
 <unfinished ...>
[pid 11792] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11792] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11792] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11792] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11791] <... futex resumed>)        = 0
[pid 11791] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11791] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11792] <... futex resumed>)        = 1
[pid 11792] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11792] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11791] <... futex resumed>)        = 0
[pid 11791] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11791] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11792] <... futex resumed>)        = 1
[pid 11792] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11792] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11791] <... futex resumed>)        = 0
[pid 11791] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11791] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11792] <... futex resumed>)        = 1
[pid 11792] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11792] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11791] <... futex resumed>)        = 0
[pid 11791] exit_group(0)               = ?
[pid 11792] +++ exited with 0 +++
[pid 11791] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11791, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11793
./strace-static-x86_64: Process 11793 attached
[pid 11793] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11793] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11793] setpgid(0, 0)               = 0
[pid 11793] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11793] write(3, "1000", 4)         = 4
[pid 11793] close(3)                    = 0
[pid 11793] write(1, "executing program\n", 18executing program
) = 18
[pid 11793] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11793] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11793] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11793] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11793] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11793] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11793] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11794 attached
 => {parent_tid=[11794]}, 88) = 11794
[pid 11794] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11793] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11794] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11793] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11794] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11793] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11793] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11794] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11794] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11793] <... futex resumed>)        = 0
[pid 11793] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11793] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11794] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11794] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11793] <... futex resumed>)        = 0
[pid 11793] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11793] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11794] 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11793] <... futex resumed>)        = 0
[pid 11794] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11793] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11793] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11794] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11794] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11793] <... futex resumed>)        = 0
[pid 11794] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11793] exit_group(0)               = ?
[pid 11794] <... futex resumed>)        = ?
[pid 11794] +++ exited with 0 +++
[pid 11793] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11793, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11795
./strace-static-x86_64: Process 11795 attached
[pid 11795] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11795] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11795] setpgid(0, 0)               = 0
[pid 11795] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11795] write(3, "1000", 4)         = 4
[pid 11795] close(3)                    = 0
[pid 11795] write(1, "executing program\n", 18executing program
) = 18
[pid 11795] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11795] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11795] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11795] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11795] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11795] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11795] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11796]}, 88) = 11796
[pid 11795] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11795] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11795] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11796 attached
 <unfinished ...>
[pid 11796] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11796] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11796] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11796] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11795] <... futex resumed>)        = 0
[pid 11795] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11795] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11796] <... futex resumed>)        = 1
[pid 11796] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11796] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11795] <... futex resumed>)        = 0
[pid 11795] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11795] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11796] <... futex resumed>)        = 1
[pid 11796] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11796] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11795] <... futex resumed>)        = 0
[pid 11795] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11795] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11796] <... futex resumed>)        = 1
[pid 11796] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11796] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11795] <... futex resumed>)        = 0
[pid 11795] exit_group(0)               = ?
[pid 11796] <... futex resumed>)        = ?
[pid 11796] +++ exited with 0 +++
[pid 11795] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11795, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11797
./strace-static-x86_64: Process 11797 attached
[pid 11797] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11797] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11797] setpgid(0, 0)               = 0
[pid 11797] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11797] write(3, "1000", 4)         = 4
[pid 11797] close(3)                    = 0
executing program
[pid 11797] write(1, "executing program\n", 18) = 18
[pid 11797] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11797] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11797] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11797] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11797] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11797] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11797] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11798 attached
 <unfinished ...>
[pid 11798] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11798] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11798] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11797] <... clone3 resumed> => {parent_tid=[11798]}, 88) = 11798
[pid 11797] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11797] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11798] <... futex resumed>)        = 0
[pid 11798] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11798] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11798] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11797] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11797] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11798] <... futex resumed>)        = 0
[pid 11798] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11798] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11798] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11797] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11797] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11798] <... futex resumed>)        = 0
[pid 11798] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11798] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11798] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11797] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11797] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11798] <... futex resumed>)        = 0
[pid 11798] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11797] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11798] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11798] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11798] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11797] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11797] exit_group(0)               = ?
[pid 11798] <... futex resumed>)        = ?
[pid 11798] +++ exited with 0 +++
[pid 11797] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11797, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11799
./strace-static-x86_64: Process 11799 attached
[pid 11799] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11799] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11799] setpgid(0, 0)               = 0
[pid 11799] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11799] write(3, "1000", 4)         = 4
[pid 11799] close(3)                    = 0
[pid 11799] write(1, "executing program\n", 18executing program
) = 18
[pid 11799] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11799] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11799] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11799] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11799] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11799] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11799] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11800]}, 88) = 11800
[pid 11799] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11799] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11799] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11800 attached
 <unfinished ...>
[pid 11800] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11800] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11800] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11800] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11799] <... futex resumed>)        = 0
[pid 11799] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11799] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11800] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11800] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11799] <... futex resumed>)        = 0
[pid 11799] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11800] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11799] <... futex resumed>)        = 0
[pid 11799] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11800] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11800] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11799] <... futex resumed>)        = 0
[pid 11799] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11799] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11800] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11800] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11799] <... futex resumed>)        = 0
[pid 11800] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11799] exit_group(0)               = ?
[pid 11800] <... futex resumed>)        = ?
[pid 11800] +++ exited with 0 +++
[pid 11799] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11799, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11801
./strace-static-x86_64: Process 11801 attached
[pid 11801] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11801] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11801] setpgid(0, 0)               = 0
[pid 11801] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11801] write(3, "1000", 4)         = 4
[pid 11801] close(3)                    = 0
executing program
[pid 11801] write(1, "executing program\n", 18) = 18
[pid 11801] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11801] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11801] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11801] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11801] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11801] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11801] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11802 attached
 => {parent_tid=[11802]}, 88) = 11802
[pid 11802] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11802] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11802] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11801] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11801] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11802] <... futex resumed>)        = 0
[pid 11802] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11802] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11802] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11801] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11801] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11802] <... futex resumed>)        = 0
[pid 11802] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11802] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11802] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11801] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11801] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11802] <... futex resumed>)        = 0
[pid 11802] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11802] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11802] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11801] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11801] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11802] <... futex resumed>)        = 0
[pid 11802] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11802] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11802] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11801] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11801] exit_group(0)               = ?
[pid 11802] <... futex resumed>)        = ?
[pid 11802] +++ exited with 0 +++
[pid 11801] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11801, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11803
./strace-static-x86_64: Process 11803 attached
[pid 11803] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11803] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11803] setpgid(0, 0)               = 0
[pid 11803] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11803] write(3, "1000", 4)         = 4
[pid 11803] close(3)                    = 0
[pid 11803] write(1, "executing program\n", 18executing program
) = 18
[pid 11803] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11803] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11803] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11803] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11803] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11803] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11803] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11804 attached
 => {parent_tid=[11804]}, 88) = 11804
[pid 11804] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11804] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11804] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11803] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11803] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11804] <... futex resumed>)        = 0
[pid 11803] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11804] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11804] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11804] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11803] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11803] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11804] <... futex resumed>)        = 0
[pid 11804] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11804] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11804] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11803] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11803] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11804] <... futex resumed>)        = 0
[pid 11804] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11804] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11804] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11803] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11803] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11804] <... futex resumed>)        = 0
[pid 11804] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11804] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11804] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11803] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11803] exit_group(0)               = ?
[pid 11804] <... futex resumed>)        = ?
[pid 11804] +++ exited with 0 +++
[pid 11803] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11803, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11805
./strace-static-x86_64: Process 11805 attached
[pid 11805] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11805] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11805] setpgid(0, 0)               = 0
[pid 11805] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11805] write(3, "1000", 4)         = 4
[pid 11805] close(3)                    = 0
executing program
[pid 11805] write(1, "executing program\n", 18) = 18
[pid 11805] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11805] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11805] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11805] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11805] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11805] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11805] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11806 attached
 => {parent_tid=[11806]}, 88) = 11806
[pid 11806] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11805] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11806] <... set_robust_list resumed>) = 0
[pid 11805] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11806] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11805] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11806] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11805] <... futex resumed>)        = 0
[pid 11806] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11805] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11806] <... 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 11806] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11805] <... futex resumed>)        = 0
[pid 11805] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11805] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11806] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11806] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11805] <... futex resumed>)        = 0
[pid 11805] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11805] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11806] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11806] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11805] <... futex resumed>)        = 0
[pid 11805] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11805] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11806] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11806] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11805] <... futex resumed>)        = 0
[pid 11805] exit_group(0)               = ?
[pid 11806] +++ exited with 0 +++
[pid 11805] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11805, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11807
./strace-static-x86_64: Process 11807 attached
[pid 11807] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11807] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11807] setpgid(0, 0)               = 0
[pid 11807] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11807] write(3, "1000", 4)         = 4
[pid 11807] close(3)                    = 0
[pid 11807] write(1, "executing program\n", 18executing program
) = 18
[pid 11807] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11807] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11807] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11807] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11807] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11807] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11807] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11808 attached
 <unfinished ...>
[pid 11808] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11808] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11808] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11807] <... clone3 resumed> => {parent_tid=[11808]}, 88) = 11808
[pid 11807] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11807] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11808] <... futex resumed>)        = 0
[pid 11808] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11808] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11808] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11807] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11807] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11808] <... futex resumed>)        = 0
[pid 11808] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11808] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11808] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11807] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11807] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11808] <... futex resumed>)        = 0
[pid 11808] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11808] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11808] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11807] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11807] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11808] <... futex resumed>)        = 0
[pid 11808] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11808] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11808] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11807] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11807] exit_group(0)               = ?
[pid 11808] <... futex resumed>)        = ?
[pid 11808] +++ exited with 0 +++
[pid 11807] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11807, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11809
./strace-static-x86_64: Process 11809 attached
[pid 11809] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11809] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11809] setpgid(0, 0)               = 0
[pid 11809] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11809] write(3, "1000", 4)         = 4
[pid 11809] close(3)                    = 0
[pid 11809] write(1, "executing program\n", 18executing program
) = 18
[pid 11809] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11809] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11809] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11809] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11809] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11809] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11809] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11810]}, 88) = 11810
[pid 11809] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11809] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11809] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11810 attached
 <unfinished ...>
[pid 11810] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11810] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11810] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11810] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11809] <... futex resumed>)        = 0
[pid 11809] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11809] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11810] <... futex resumed>)        = 1
[pid 11810] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11810] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11809] <... futex resumed>)        = 0
[pid 11809] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11809] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11810] <... futex resumed>)        = 1
[pid 11810] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11810] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11809] <... futex resumed>)        = 0
[pid 11809] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11809] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11810] <... futex resumed>)        = 1
[pid 11810] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11810] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11809] <... futex resumed>)        = 0
[pid 11809] exit_group(0)               = ?
[pid 11810] <... futex resumed>)        = ?
[pid 11810] +++ exited with 0 +++
[pid 11809] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11809, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11811
./strace-static-x86_64: Process 11811 attached
[pid 11811] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11811] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11811] setpgid(0, 0)               = 0
[pid 11811] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11811] write(3, "1000", 4)         = 4
[pid 11811] close(3)                    = 0
[pid 11811] write(1, "executing program\n", 18executing program
) = 18
[pid 11811] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11811] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11811] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11811] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11811] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11811] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11811] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11812 attached
 => {parent_tid=[11812]}, 88) = 11812
[pid 11811] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11811] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11811] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11812] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11812] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11812] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11812] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11811] <... futex resumed>)        = 0
[pid 11811] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11811] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11812] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11812] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11811] <... futex resumed>)        = 0
[pid 11811] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11812] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11811] <... futex resumed>)        = 0
[pid 11811] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11812] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11812] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11811] <... futex resumed>)        = 0
[pid 11811] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11811] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11812] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11812] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11811] <... futex resumed>)        = 0
[pid 11812] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11811] exit_group(0)               = ?
[pid 11812] <... futex resumed>)        = ?
[pid 11812] +++ exited with 0 +++
[pid 11811] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11811, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11813
./strace-static-x86_64: Process 11813 attached
[pid 11813] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11813] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11813] setpgid(0, 0)               = 0
[pid 11813] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11813] write(3, "1000", 4)         = 4
executing program
[pid 11813] close(3)                    = 0
[pid 11813] write(1, "executing program\n", 18) = 18
[pid 11813] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11813] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11813] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11813] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11813] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11813] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11813] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11814 attached
 <unfinished ...>
[pid 11814] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11813] <... clone3 resumed> => {parent_tid=[11814]}, 88) = 11814
[pid 11813] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11814] <... set_robust_list resumed>) = 0
[pid 11813] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11814] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11813] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11814] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11813] <... futex resumed>)        = 0
[pid 11814] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11813] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11814] <... 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 11814] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11813] <... futex resumed>)        = 0
[pid 11813] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11813] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11814] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11814] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11813] <... futex resumed>)        = 0
[pid 11813] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11813] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11814] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11814] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11813] <... futex resumed>)        = 0
[pid 11813] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11813] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11814] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11814] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11813] <... futex resumed>)        = 0
[pid 11813] exit_group(0)               = ?
[pid 11814] +++ exited with 0 +++
[pid 11813] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11813, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11815
./strace-static-x86_64: Process 11815 attached
[pid 11815] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11815] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11815] setpgid(0, 0)               = 0
[pid 11815] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11815] write(3, "1000", 4)         = 4
[pid 11815] close(3)                    = 0
executing program
[pid 11815] write(1, "executing program\n", 18) = 18
[pid 11815] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11815] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11815] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11815] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11815] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11815] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11815] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11816 attached
 => {parent_tid=[11816]}, 88) = 11816
[pid 11815] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11815] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11815] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11816] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11816] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11816] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11816] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11815] <... futex resumed>)        = 0
[pid 11815] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11815] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11816] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11816] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11815] <... futex resumed>)        = 0
[pid 11815] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11815] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11816] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11816] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11815] <... futex resumed>)        = 0
[pid 11815] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11815] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11816] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11816] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11815] <... futex resumed>)        = 0
[pid 11815] exit_group(0)               = ?
[pid 11816] +++ exited with 0 +++
[pid 11815] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11815, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11817
./strace-static-x86_64: Process 11817 attached
[pid 11817] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11817] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11817] setpgid(0, 0)               = 0
[pid 11817] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11817] write(3, "1000", 4)         = 4
[pid 11817] close(3)                    = 0
executing program
[pid 11817] write(1, "executing program\n", 18) = 18
[pid 11817] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11817] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11817] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11817] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11817] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11817] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11817] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11818]}, 88) = 11818
[pid 11817] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11817] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11817] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11818 attached
 <unfinished ...>
[pid 11818] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11818] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11818] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11818] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11817] <... futex resumed>)        = 0
[pid 11817] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11817] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11818] <... futex resumed>)        = 1
[pid 11818] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11818] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11817] <... futex resumed>)        = 0
[pid 11817] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11817] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11818] <... futex resumed>)        = 1
[pid 11818] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11818] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11817] <... futex resumed>)        = 0
[pid 11817] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11817] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11818] <... futex resumed>)        = 1
[pid 11818] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11818] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11817] <... futex resumed>)        = 0
[pid 11817] exit_group(0)               = ?
[pid 11818] <... futex resumed>)        = ?
[pid 11818] +++ exited with 0 +++
[pid 11817] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11817, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11819
./strace-static-x86_64: Process 11819 attached
[pid 11819] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11819] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11819] setpgid(0, 0)               = 0
[pid 11819] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11819] write(3, "1000", 4)         = 4
[pid 11819] close(3executing program
)                    = 0
[pid 11819] write(1, "executing program\n", 18) = 18
[pid 11819] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11819] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11819] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11819] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11819] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11819] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11819] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11820]}, 88) = 11820
[pid 11819] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11819] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 11820 attached
 <unfinished ...>
[pid 11820] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11819] <... futex resumed>)        = 0
[pid 11820] <... set_robust_list resumed>) = 0
[pid 11820] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11820] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11820] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11820] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11819] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11819] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11820] <... futex resumed>)        = 0
[pid 11820] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11820] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11820] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11819] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11819] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11820] <... futex resumed>)        = 0
[pid 11820] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11820] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11820] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11819] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11819] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11820] <... futex resumed>)        = 0
[pid 11820] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11820] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11820] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11819] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11819] exit_group(0)               = ?
[pid 11820] <... futex resumed>)        = ?
[pid 11820] +++ exited with 0 +++
[pid 11819] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11819, si_uid=0, si_status=0, 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 11821 attached
, child_tidptr=0x55558842d690) = 11821
[pid 11821] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11821] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11821] setpgid(0, 0)               = 0
[pid 11821] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11821] write(3, "1000", 4)         = 4
[pid 11821] close(3)                    = 0
[pid 11821] write(1, "executing program\n", 18executing program
) = 18
[pid 11821] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11821] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11821] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11821] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11821] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11821] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11821] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11822 attached
 <unfinished ...>
[pid 11822] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11822] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11822] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11821] <... clone3 resumed> => {parent_tid=[11822]}, 88) = 11822
[pid 11821] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11821] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11822] <... futex resumed>)        = 0
[pid 11822] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11822] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11822] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11821] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11821] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11822] <... futex resumed>)        = 0
[pid 11822] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11822] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11822] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11821] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11821] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11822] <... futex resumed>)        = 0
[pid 11822] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11822] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11822] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11821] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11821] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11822] <... futex resumed>)        = 0
[pid 11822] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11822] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11822] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11821] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11821] exit_group(0)               = ?
[pid 11822] <... futex resumed>)        = ?
[pid 11822] +++ exited with 0 +++
[pid 11821] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11821, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11823
./strace-static-x86_64: Process 11823 attached
[pid 11823] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11823] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11823] setpgid(0, 0)               = 0
[pid 11823] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11823] write(3, "1000", 4)         = 4
[pid 11823] close(3executing program
)                    = 0
[pid 11823] write(1, "executing program\n", 18) = 18
[pid 11823] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11823] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11823] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11823] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11823] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11823] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11823] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11824 attached
 => {parent_tid=[11824]}, 88) = 11824
[pid 11824] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11823] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11823] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11823] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11824] <... set_robust_list resumed>) = 0
[pid 11824] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11824] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11824] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11824] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11823] <... futex resumed>)        = 0
[pid 11823] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11824] <... futex resumed>)        = 0
[pid 11824] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11824] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11824] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11823] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11823] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11824] <... futex resumed>)        = 0
[pid 11824] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11824] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11824] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11823] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11823] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11824] <... futex resumed>)        = 0
[pid 11824] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11823] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11824] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11824] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11823] <... futex resumed>)        = 0
[pid 11823] exit_group(0)               = ?
[pid 11824] +++ exited with 0 +++
[pid 11823] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11823, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11825
./strace-static-x86_64: Process 11825 attached
[pid 11825] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11825] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11825] setpgid(0, 0)               = 0
[pid 11825] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11825] write(3, "1000", 4)         = 4
[pid 11825] close(3)                    = 0
[pid 11825] write(1, "executing program\n", 18executing program
) = 18
[pid 11825] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11825] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11825] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11825] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11825] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11825] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11825] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11826 attached
 <unfinished ...>
[pid 11826] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11826] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11826] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11825] <... clone3 resumed> => {parent_tid=[11826]}, 88) = 11826
[pid 11825] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11825] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11826] <... futex resumed>)        = 0
[pid 11826] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11826] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11826] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11825] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11825] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11826] <... futex resumed>)        = 0
[pid 11826] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11826] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11826] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11825] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11825] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11826] <... futex resumed>)        = 0
[pid 11826] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11826] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11826] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11825] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11825] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11826] <... futex resumed>)        = 0
[pid 11826] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11825] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11826] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11826] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11825] <... futex resumed>)        = 0
[pid 11825] exit_group(0)               = ?
[pid 11826] +++ exited with 0 +++
[pid 11825] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11825, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11827
./strace-static-x86_64: Process 11827 attached
[pid 11827] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11827] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11827] setpgid(0, 0)               = 0
[pid 11827] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11827] write(3, "1000", 4)         = 4
[pid 11827] close(3)                    = 0
[pid 11827] write(1, "executing program\n", 18executing program
) = 18
[pid 11827] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11827] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11827] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11827] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11827] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11827] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11827] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11828 attached
 <unfinished ...>
[pid 11828] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11828] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11828] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11827] <... clone3 resumed> => {parent_tid=[11828]}, 88) = 11828
[pid 11827] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11827] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11828] <... futex resumed>)        = 0
[pid 11828] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11828] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11828] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11827] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11827] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11828] <... futex resumed>)        = 0
[pid 11828] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11827] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11828] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11828] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11828] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11827] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11827] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11828] <... futex resumed>)        = 0
[pid 11827] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11828] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11828] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11828] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11827] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11827] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11828] <... futex resumed>)        = 0
[pid 11828] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11828] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11828] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11827] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11827] exit_group(0)               = ?
[pid 11828] <... futex resumed>)        = ?
[pid 11828] +++ exited with 0 +++
[pid 11827] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11827, si_uid=0, si_status=0, 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 11829 attached
, child_tidptr=0x55558842d690) = 11829
[pid 11829] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11829] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11829] setpgid(0, 0)               = 0
[pid 11829] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11829] write(3, "1000", 4)         = 4
[pid 11829] close(3)                    = 0
[pid 11829] write(1, "executing program\n", 18executing program
) = 18
[pid 11829] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11829] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11829] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11829] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11829] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11829] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11829] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11830 attached
 => {parent_tid=[11830]}, 88) = 11830
[pid 11830] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11830] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11830] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11829] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11829] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11830] <... futex resumed>)        = 0
[pid 11830] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11829] <... futex resumed>)        = 1
[pid 11830] <... 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 11830] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11830] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11829] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11829] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11830] <... futex resumed>)        = 0
[pid 11830] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11829] <... futex resumed>)        = 1
[pid 11830] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11830] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11829] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11829] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11830] <... futex resumed>)        = 0
[pid 11830] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11830] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11830] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11829] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11829] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11830] <... futex resumed>)        = 0
[pid 11830] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11830] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11830] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11829] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11829] exit_group(0)               = ?
[pid 11830] <... futex resumed>)        = ?
[pid 11830] +++ exited with 0 +++
[pid 11829] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11829, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11831
./strace-static-x86_64: Process 11831 attached
[pid 11831] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11831] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11831] setpgid(0, 0)               = 0
[pid 11831] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11831] write(3, "1000", 4)         = 4
[pid 11831] close(3)                    = 0
[pid 11831] write(1, "executing program\n", 18executing program
) = 18
[pid 11831] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11831] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11831] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11831] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11831] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11831] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11831] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11832 attached
 => {parent_tid=[11832]}, 88) = 11832
[pid 11832] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11832] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11832] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11831] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11831] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11832] <... futex resumed>)        = 0
[pid 11832] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11832] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11831] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11831] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11832] <... futex resumed>)        = 0
[pid 11832] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11832] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11832] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11831] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11831] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11832] <... futex resumed>)        = 0
[pid 11832] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11832] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11832] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11831] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11831] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11832] <... futex resumed>)        = 0
[pid 11832] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11832] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11832] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11831] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11831] exit_group(0)               = ?
[pid 11832] <... futex resumed>)        = ?
[pid 11832] +++ exited with 0 +++
[pid 11831] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11831, si_uid=0, si_status=0, 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 11833 attached
 <unfinished ...>
[pid 11833] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11833] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   555] <... clone resumed>, child_tidptr=0x55558842d690) = 11833
[pid 11833] <... prctl resumed>)        = 0
[pid 11833] setpgid(0, 0)               = 0
[pid 11833] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11833] write(3, "1000", 4)         = 4
[pid 11833] close(3)                    = 0
[pid 11833] write(1, "executing program\n", 18executing program
) = 18
[pid 11833] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11833] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11833] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11833] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11833] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11833] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11833] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11834 attached
 => {parent_tid=[11834]}, 88) = 11834
[pid 11834] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11834] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11834] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11833] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11833] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11834] <... futex resumed>)        = 0
[pid 11833] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11834] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11834] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11834] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11833] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11833] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11834] <... futex resumed>)        = 0
[pid 11834] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11834] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11834] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11833] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11833] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11834] <... futex resumed>)        = 0
[pid 11834] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11834] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11834] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11833] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11833] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11834] <... futex resumed>)        = 0
[pid 11834] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11833] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11834] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11834] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11834] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11833] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11833] exit_group(0)               = ?
[pid 11834] <... futex resumed>)        = ?
[pid 11834] +++ exited with 0 +++
[pid 11833] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11833, si_uid=0, si_status=0, 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 11835 attached
, child_tidptr=0x55558842d690) = 11835
[pid 11835] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11835] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11835] setpgid(0, 0)               = 0
[pid 11835] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11835] write(3, "1000", 4)         = 4
[pid 11835] close(3)                    = 0
[pid 11835] write(1, "executing program\n", 18executing program
) = 18
[pid 11835] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11835] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11835] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11835] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11835] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11835] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11835] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11836 attached
 => {parent_tid=[11836]}, 88) = 11836
[pid 11836] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11836] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11836] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11835] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11835] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11836] <... futex resumed>)        = 0
[pid 11836] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11836] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11836] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11835] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11835] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11836] <... futex resumed>)        = 0
[pid 11836] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11836] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11836] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11835] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11835] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11836] <... futex resumed>)        = 0
[pid 11836] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11836] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11836] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11835] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11835] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11836] <... futex resumed>)        = 0
[pid 11836] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11836] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11836] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11835] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11835] exit_group(0)               = ?
[pid 11836] <... futex resumed>)        = ?
[pid 11836] +++ exited with 0 +++
[pid 11835] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11835, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11837
./strace-static-x86_64: Process 11837 attached
[pid 11837] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11837] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11837] setpgid(0, 0)               = 0
[pid 11837] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11837] write(3, "1000", 4)         = 4
executing program
[pid 11837] close(3)                    = 0
[pid 11837] write(1, "executing program\n", 18) = 18
[pid 11837] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11837] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11837] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11837] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11837] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11837] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11837] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11838]}, 88) = 11838
[pid 11837] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11837] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11837] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11838 attached
 <unfinished ...>
[pid 11838] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11838] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11838] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11838] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11837] <... futex resumed>)        = 0
[pid 11837] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11837] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11838] <... futex resumed>)        = 1
[pid 11838] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11838] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11837] <... futex resumed>)        = 0
[pid 11837] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11837] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11838] <... futex resumed>)        = 1
[pid 11838] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11838] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11837] <... futex resumed>)        = 0
[pid 11837] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11837] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11838] <... futex resumed>)        = 1
[pid 11838] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11838] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11837] <... futex resumed>)        = 0
[pid 11837] exit_group(0)               = ?
[pid 11838] <... futex resumed>)        = ?
[pid 11838] +++ exited with 0 +++
[pid 11837] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11837, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11839
./strace-static-x86_64: Process 11839 attached
[pid 11839] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11839] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11839] setpgid(0, 0)               = 0
[pid 11839] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11839] write(3, "1000", 4)         = 4
[pid 11839] close(3)                    = 0
[pid 11839] write(1, "executing program\n", 18executing program
) = 18
[pid 11839] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11839] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11839] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11839] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11839] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11839] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11839] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11840 attached
 => {parent_tid=[11840]}, 88) = 11840
[pid 11840] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11840] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11840] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11839] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11839] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11840] <... futex resumed>)        = 0
[pid 11839] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11840] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11840] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11840] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11839] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11839] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11840] <... futex resumed>)        = 0
[pid 11840] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11840] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11840] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11839] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11839] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11840] <... futex resumed>)        = 0
[pid 11840] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11840] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11840] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11839] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11839] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11840] <... futex resumed>)        = 0
[pid 11839] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11840] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11840] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11840] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11839] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11839] exit_group(0)               = ?
[pid 11840] <... futex resumed>)        = ?
[pid 11840] +++ exited with 0 +++
[pid 11839] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11839, si_uid=0, si_status=0, 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 11841 attached
, child_tidptr=0x55558842d690) = 11841
[pid 11841] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11841] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11841] setpgid(0, 0)               = 0
[pid 11841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11841] write(3, "1000", 4)         = 4
[pid 11841] close(3)                    = 0
executing program
[pid 11841] write(1, "executing program\n", 18) = 18
[pid 11841] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11841] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11841] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11841] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11841] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11841] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11841] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11842]}, 88) = 11842
[pid 11841] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11841] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11841] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11842 attached
 <unfinished ...>
[pid 11842] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11842] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11842] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11842] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11841] <... futex resumed>)        = 0
[pid 11841] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11841] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11842] <... futex resumed>)        = 1
[pid 11842] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11842] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11841] <... futex resumed>)        = 0
[pid 11841] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11841] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11842] <... futex resumed>)        = 1
[pid 11842] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11842] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11841] <... futex resumed>)        = 0
[pid 11841] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11841] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11842] <... futex resumed>)        = 1
[pid 11842] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11842] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11841] <... futex resumed>)        = 0
[pid 11841] exit_group(0)               = ?
[pid 11842] <... futex resumed>)        = ?
[pid 11842] +++ exited with 0 +++
[pid 11841] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11841, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11843
./strace-static-x86_64: Process 11843 attached
[pid 11843] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11843] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11843] setpgid(0, 0)               = 0
[pid 11843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11843] write(3, "1000", 4)         = 4
[pid 11843] close(3)                    = 0
executing program
[pid 11843] write(1, "executing program\n", 18) = 18
[pid 11843] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11843] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11843] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11843] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11843] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11843] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11843] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11844 attached
 => {parent_tid=[11844]}, 88) = 11844
[pid 11843] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11844] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11843] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11843] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11843] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11844] <... set_robust_list resumed>) = 0
[pid 11844] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11844] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11844] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11843] <... futex resumed>)        = 0
[pid 11844] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11843] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11844] <... futex resumed>)        = 0
[pid 11844] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11844] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11844] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11843] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11843] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11844] <... futex resumed>)        = 0
[pid 11844] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11844] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11844] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11843] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11843] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11844] <... futex resumed>)        = 0
[pid 11844] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11844] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11844] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11843] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11843] exit_group(0)               = ?
[pid 11844] <... futex resumed>)        = ?
[pid 11844] +++ exited with 0 +++
[pid 11843] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11843, si_uid=0, si_status=0, 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 11845 attached
, child_tidptr=0x55558842d690) = 11845
[pid 11845] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11845] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11845] setpgid(0, 0)               = 0
[pid 11845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11845] write(3, "1000", 4)         = 4
[pid 11845] close(3)                    = 0
[pid 11845] write(1, "executing program\n", 18executing program
) = 18
[pid 11845] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11845] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11845] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11845] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11845] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11845] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11845] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11846 attached
 => {parent_tid=[11846]}, 88) = 11846
[pid 11846] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11846] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11846] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11845] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11845] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11846] <... futex resumed>)        = 0
[pid 11846] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11846] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11846] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11845] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11845] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11846] <... futex resumed>)        = 0
[pid 11846] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11846] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11846] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11845] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11845] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11846] <... futex resumed>)        = 0
[pid 11846] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11846] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11846] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11845] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11845] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11846] <... futex resumed>)        = 0
[pid 11846] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11846] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11846] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11845] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11845] exit_group(0)               = ?
[pid 11846] <... futex resumed>)        = ?
[pid 11846] +++ exited with 0 +++
[pid 11845] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11845, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11847
./strace-static-x86_64: Process 11847 attached
[pid 11847] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11847] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11847] setpgid(0, 0)               = 0
[pid 11847] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11847] write(3, "1000", 4)         = 4
[pid 11847] close(3)                    = 0
[pid 11847] write(1, "executing program\n", 18executing program
) = 18
[pid 11847] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11847] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11847] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11847] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11847] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11847] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11847] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11848]}, 88) = 11848
[pid 11847] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11847] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11847] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11848 attached
 <unfinished ...>
[pid 11848] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11848] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11848] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11848] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11847] <... futex resumed>)        = 0
[pid 11847] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11847] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11848] <... futex resumed>)        = 1
[pid 11848] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11848] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11847] <... futex resumed>)        = 0
[pid 11847] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11847] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11848] <... futex resumed>)        = 1
[pid 11848] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11848] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11847] <... futex resumed>)        = 0
[pid 11847] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11847] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11848] <... futex resumed>)        = 1
[pid 11848] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11848] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11847] <... futex resumed>)        = 0
[pid 11847] exit_group(0)               = ?
[pid 11848] <... futex resumed>)        = ?
[pid 11848] +++ exited with 0 +++
[pid 11847] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11847, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11849
./strace-static-x86_64: Process 11849 attached
[pid 11849] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11849] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11849] setpgid(0, 0)               = 0
[pid 11849] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11849] write(3, "1000", 4)         = 4
[pid 11849] close(3)                    = 0
[pid 11849] write(1, "executing program\n", 18executing program
) = 18
[pid 11849] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11849] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11849] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11849] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11849] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11849] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11849] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11850 attached
 <unfinished ...>
[pid 11850] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11850] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11850] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11849] <... clone3 resumed> => {parent_tid=[11850]}, 88) = 11850
[pid 11849] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11849] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11850] <... futex resumed>)        = 0
[pid 11850] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11850] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11850] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11849] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11849] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11850] <... futex resumed>)        = 0
[pid 11850] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11850] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11850] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11849] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11849] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11850] <... futex resumed>)        = 0
[pid 11850] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11850] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11850] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11849] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11849] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11850] <... futex resumed>)        = 0
[pid 11850] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11849] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11850] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11850] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11850] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11849] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11849] exit_group(0)               = ?
[pid 11850] <... futex resumed>)        = ?
[pid 11850] +++ exited with 0 +++
[pid 11849] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11849, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11851
./strace-static-x86_64: Process 11851 attached
[pid 11851] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11851] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11851] setpgid(0, 0)               = 0
[pid 11851] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11851] write(3, "1000", 4)         = 4
[pid 11851] close(3)                    = 0
[pid 11851] write(1, "executing program\n", 18executing program
) = 18
[pid 11851] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11851] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11851] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11851] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11851] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11851] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11851] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11852 attached
 => {parent_tid=[11852]}, 88) = 11852
[pid 11852] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11852] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11852] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11851] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11851] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11852] <... futex resumed>)        = 0
[pid 11852] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11851] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11852] <... 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 11852] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11852] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11851] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11851] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11852] <... futex resumed>)        = 0
[pid 11852] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11852] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11852] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11851] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11851] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11852] <... futex resumed>)        = 0
[pid 11852] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11852] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11852] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11851] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11851] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11852] <... futex resumed>)        = 0
[pid 11852] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11852] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11852] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11851] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11851] exit_group(0)               = ?
[pid 11852] <... futex resumed>)        = ?
[pid 11852] +++ exited with 0 +++
[pid 11851] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11851, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11853
./strace-static-x86_64: Process 11853 attached
[pid 11853] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11853] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11853] setpgid(0, 0)               = 0
[pid 11853] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11853] write(3, "1000", 4)         = 4
[pid 11853] close(3)                    = 0
executing program
[pid 11853] write(1, "executing program\n", 18) = 18
[pid 11853] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11853] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11853] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11853] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11853] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11853] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11853] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11854]}, 88) = 11854
[pid 11853] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11853] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11853] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11854 attached
 <unfinished ...>
[pid 11854] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11854] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11854] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11854] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11853] <... futex resumed>)        = 0
[pid 11853] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11853] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11854] <... futex resumed>)        = 1
[pid 11854] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11854] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11853] <... futex resumed>)        = 0
[pid 11853] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11853] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11854] <... futex resumed>)        = 1
[pid 11854] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11854] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11853] <... futex resumed>)        = 0
[pid 11853] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11853] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11854] <... futex resumed>)        = 1
[pid 11854] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11854] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11853] <... futex resumed>)        = 0
[pid 11853] exit_group(0)               = ?
[pid 11854] <... futex resumed>)        = ?
[pid 11854] +++ exited with 0 +++
[pid 11853] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11853, si_uid=0, si_status=0, 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 11855 attached
, child_tidptr=0x55558842d690) = 11855
[pid 11855] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11855] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11855] setpgid(0, 0)               = 0
[pid 11855] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11855] write(3, "1000", 4)         = 4
executing program
[pid 11855] close(3)                    = 0
[pid 11855] write(1, "executing program\n", 18) = 18
[pid 11855] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11855] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11855] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11855] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11855] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11855] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11855] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11856 attached
 => {parent_tid=[11856]}, 88) = 11856
[pid 11855] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11855] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11855] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11856] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11856] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11856] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11856] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11855] <... futex resumed>)        = 0
[pid 11855] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11855] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11856] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11856] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11855] <... futex resumed>)        = 0
[pid 11856] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11855] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11856] <... futex resumed>)        = 0
[pid 11856] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11856] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11856] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11855] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11855] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11856] <... futex resumed>)        = 0
[pid 11856] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11856] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11856] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11855] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11855] exit_group(0)               = ?
[pid 11856] <... futex resumed>)        = ?
[pid 11856] +++ exited with 0 +++
[pid 11855] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11855, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11857
./strace-static-x86_64: Process 11857 attached
[pid 11857] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11857] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11857] setpgid(0, 0)               = 0
[pid 11857] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11857] write(3, "1000", 4)         = 4
[pid 11857] close(3)                    = 0
[pid 11857] write(1, "executing program\n", 18executing program
) = 18
[pid 11857] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11857] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11857] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11857] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11857] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11857] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11857] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11858 attached
 => {parent_tid=[11858]}, 88) = 11858
[pid 11858] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11857] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11857] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11857] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11858] <... set_robust_list resumed>) = 0
[pid 11858] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11858] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11858] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11857] <... futex resumed>)        = 0
[pid 11857] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11857] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11858] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11858] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11857] <... futex resumed>)        = 0
[pid 11857] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11858] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11857] <... futex resumed>)        = 0
[pid 11857] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11858] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11858] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11857] <... futex resumed>)        = 0
[pid 11857] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11858] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11857] <... futex resumed>)        = 0
[pid 11857] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11858] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11858] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11857] <... futex resumed>)        = 0
[pid 11858] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11857] exit_group(0)               = ?
[pid 11858] <... futex resumed>)        = ?
[pid 11858] +++ exited with 0 +++
[pid 11857] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11857, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11859
./strace-static-x86_64: Process 11859 attached
[pid 11859] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11859] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11859] setpgid(0, 0)               = 0
[pid 11859] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11859] write(3, "1000", 4)         = 4
[pid 11859] close(3)                    = 0
[pid 11859] write(1, "executing program\n", 18executing program
) = 18
[pid 11859] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11859] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11859] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11859] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11859] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11859] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11859] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11860 attached
 => {parent_tid=[11860]}, 88) = 11860
[pid 11860] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11860] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11860] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11859] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11859] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11860] <... futex resumed>)        = 0
[pid 11859] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11860] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11860] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11860] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11859] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11859] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11860] <... futex resumed>)        = 0
[pid 11860] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11860] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11860] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11859] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11859] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11860] <... futex resumed>)        = 0
[pid 11860] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11859] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11860] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11860] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11859] <... futex resumed>)        = 0
[pid 11859] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11859] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11860] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11860] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11859] <... futex resumed>)        = 0
[pid 11859] exit_group(0)               = ?
[pid 11860] +++ exited with 0 +++
[pid 11859] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11859, si_uid=0, si_status=0, 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 11861 attached
, child_tidptr=0x55558842d690) = 11861
[pid 11861] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11861] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11861] setpgid(0, 0)               = 0
[pid 11861] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11861] write(3, "1000", 4)         = 4
[pid 11861] close(3)                    = 0
[pid 11861] write(1, "executing program\n", 18executing program
) = 18
[pid 11861] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11861] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11861] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11861] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11861] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11861] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11861] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11862 attached
 => {parent_tid=[11862]}, 88) = 11862
[pid 11862] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11862] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11862] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11861] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11861] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11862] <... futex resumed>)        = 0
[pid 11861] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11862] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11862] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11862] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11861] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11861] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11862] <... futex resumed>)        = 0
[pid 11862] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11862] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11862] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11861] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11861] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11862] <... futex resumed>)        = 0
[pid 11862] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11862] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11862] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11861] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11861] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11862] <... futex resumed>)        = 0
[pid 11861] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11862] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11862] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11861] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11862] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11861] exit_group(0)               = ?
[pid 11862] <... futex resumed>)        = ?
[pid 11862] +++ exited with 0 +++
[pid 11861] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11861, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11863
./strace-static-x86_64: Process 11863 attached
[pid 11863] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11863] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11863] setpgid(0, 0)               = 0
[pid 11863] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11863] write(3, "1000", 4)         = 4
executing program
[pid 11863] close(3)                    = 0
[pid 11863] write(1, "executing program\n", 18) = 18
[pid 11863] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11863] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11863] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11863] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11863] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11863] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11863] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11864 attached
 => {parent_tid=[11864]}, 88) = 11864
[pid 11864] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11863] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11863] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11863] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11864] <... set_robust_list resumed>) = 0
[pid 11864] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11864] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11864] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11863] <... futex resumed>)        = 0
[pid 11863] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11863] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11864] <... futex resumed>)        = 1
[pid 11864] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11864] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11863] <... futex resumed>)        = 0
[pid 11863] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11863] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11864] <... futex resumed>)        = 1
[pid 11864] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11864] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11863] <... futex resumed>)        = 0
[pid 11863] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11863] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11864] <... futex resumed>)        = 1
[pid 11864] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11864] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11863] <... futex resumed>)        = 0
[pid 11863] exit_group(0)               = ?
[pid 11864] <... futex resumed>)        = ?
[pid 11864] +++ exited with 0 +++
[pid 11863] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11863, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11865
./strace-static-x86_64: Process 11865 attached
[pid 11865] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11865] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11865] setpgid(0, 0)               = 0
[pid 11865] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11865] write(3, "1000", 4)         = 4
[pid 11865] close(3executing program
)                    = 0
[pid 11865] write(1, "executing program\n", 18) = 18
[pid 11865] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11865] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11865] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11865] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11865] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11865] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11865] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11866]}, 88) = 11866
[pid 11865] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11865] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11865] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11866 attached
 <unfinished ...>
[pid 11866] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11866] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11866] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11866] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11865] <... futex resumed>)        = 0
[pid 11865] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11865] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11866] <... futex resumed>)        = 1
[pid 11866] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11866] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11865] <... futex resumed>)        = 0
[pid 11865] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11865] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11866] <... futex resumed>)        = 1
[pid 11866] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11866] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11865] <... futex resumed>)        = 0
[pid 11865] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11865] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11866] <... futex resumed>)        = 1
[pid 11866] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11866] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11865] <... futex resumed>)        = 0
[pid 11865] exit_group(0)               = ?
[pid 11866] <... futex resumed>)        = ?
[pid 11866] +++ exited with 0 +++
[pid 11865] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11865, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11867
./strace-static-x86_64: Process 11867 attached
[pid 11867] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11867] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11867] setpgid(0, 0)               = 0
[pid 11867] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11867] write(3, "1000", 4)         = 4
[pid 11867] close(3)                    = 0
[pid 11867] write(1, "executing program\n", 18executing program
) = 18
[pid 11867] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11867] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11867] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11867] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11867] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11867] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11867] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11868 attached
 => {parent_tid=[11868]}, 88) = 11868
[pid 11868] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11867] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11868] <... set_robust_list resumed>) = 0
[pid 11867] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11868] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11867] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11867] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11868] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11868] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11868] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11867] <... futex resumed>)        = 0
[pid 11867] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11867] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11868] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11868] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11867] <... futex resumed>)        = 0
[pid 11867] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11867] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11868] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11868] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11867] <... futex resumed>)        = 0
[pid 11867] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11867] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11868] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11868] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11867] <... futex resumed>)        = 0
[pid 11867] exit_group(0 <unfinished ...>
[pid 11868] ????( <unfinished ...>
[pid 11867] <... exit_group resumed>)   = ?
[pid 11868] <... ???? resumed>)         = ?
[pid 11868] +++ exited with 0 +++
[pid 11867] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11867, si_uid=0, si_status=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=0x55558842d690) = 11869
./strace-static-x86_64: Process 11869 attached
[pid 11869] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11869] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11869] setpgid(0, 0)               = 0
[pid 11869] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11869] write(3, "1000", 4)         = 4
[pid 11869] close(3)                    = 0
[pid 11869] write(1, "executing program\n", 18) = 18
[pid 11869] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11869] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11869] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11869] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11869] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11869] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11869] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11870 attached
 => {parent_tid=[11870]}, 88) = 11870
[pid 11870] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11870] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11870] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11869] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11869] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11870] <... futex resumed>)        = 0
[pid 11870] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11869] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11870] <... 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 11870] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11870] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11869] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11869] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11870] <... futex resumed>)        = 0
[pid 11870] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11869] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11870] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11870] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11869] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11869] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11870] <... futex resumed>)        = 0
[pid 11870] 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(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11870] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11870] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11869] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11869] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11870] <... futex resumed>)        = 0
[pid 11870] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11869] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11870] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11870] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11870] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11869] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11869] exit_group(0)               = ?
[pid 11870] <... futex resumed>)        = ?
[pid 11870] +++ exited with 0 +++
[pid 11869] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11869, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11871
./strace-static-x86_64: Process 11871 attached
[pid 11871] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11871] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11871] setpgid(0, 0executing program
)               = 0
[pid 11871] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11871] write(3, "1000", 4)         = 4
[pid 11871] close(3)                    = 0
[pid 11871] write(1, "executing program\n", 18) = 18
[pid 11871] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11871] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11871] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11871] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11871] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11871] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11871] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11872 attached
 => {parent_tid=[11872]}, 88) = 11872
[pid 11872] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11872] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11872] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11871] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11871] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11872] <... futex resumed>)        = 0
[pid 11872] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11871] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11872] <... 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11872] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11871] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11871] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11872] <... futex resumed>)        = 0
[pid 11872] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11871] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11872] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11872] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11871] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11871] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11872] <... futex resumed>)        = 0
[pid 11872] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11871] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11872] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11872] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11872] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11871] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11871] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11872] <... futex resumed>)        = 0
[pid 11872] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11871] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11872] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11872] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11872] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11871] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11871] exit_group(0)               = ?
[pid 11872] <... futex resumed>)        = ?
[pid 11872] +++ exited with 0 +++
[pid 11871] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11871, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>executing program
) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11873
./strace-static-x86_64: Process 11873 attached
[pid 11873] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11873] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11873] setpgid(0, 0)               = 0
[pid 11873] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11873] write(3, "1000", 4)         = 4
[pid 11873] close(3)                    = 0
[pid 11873] write(1, "executing program\n", 18) = 18
[pid 11873] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11873] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11873] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11873] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11873] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11873] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11873] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11874 attached
 <unfinished ...>
[pid 11874] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11873] <... clone3 resumed> => {parent_tid=[11874]}, 88) = 11874
[pid 11873] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11874] <... set_robust_list resumed>) = 0
[pid 11873] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11874] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11873] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11874] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11873] <... futex resumed>)        = 0
[pid 11874] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11873] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11874] <... 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 11874] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11873] <... futex resumed>)        = 0
[pid 11873] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11873] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11874] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11874] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11873] <... futex resumed>)        = 0
[pid 11873] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11873] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11874] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11874] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11874] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11873] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11873] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11874] <... futex resumed>)        = 0
[pid 11874] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11873] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11874] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11874] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11873] <... futex resumed>)        = 0
[pid 11873] exit_group(0)               = ?
[pid 11874] +++ exited with 0 +++
[pid 11873] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11873, si_uid=0, si_status=0, 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 11875 attached
, child_tidptr=0x55558842d690) = 11875
[pid 11875] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11875] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11875] setpgid(0, 0)               = 0
[pid 11875] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11875] write(3, "1000", 4)         = 4
[pid 11875] close(3)                    = 0
[pid 11875] write(1, "executing program\n", 18executing program
) = 18
[pid 11875] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11875] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11875] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11875] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11875] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11875] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11875] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11876 attached
 <unfinished ...>
[pid 11876] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11876] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11876] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11875] <... clone3 resumed> => {parent_tid=[11876]}, 88) = 11876
[pid 11875] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11875] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11876] <... futex resumed>)        = 0
[pid 11876] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11876] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11876] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11875] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11875] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11876] <... futex resumed>)        = 0
[pid 11876] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11876] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11876] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11875] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11875] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11876] <... futex resumed>)        = 0
[pid 11876] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11876] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11876] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11875] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11875] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11876] <... futex resumed>)        = 0
[pid 11876] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11876] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11876] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11875] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11875] exit_group(0)               = ?
[pid 11876] <... futex resumed>)        = ?
[pid 11876] +++ exited with 0 +++
[pid 11875] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11875, si_uid=0, si_status=0, 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 11877 attached
, child_tidptr=0x55558842d690) = 11877
[pid 11877] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11877] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11877] setpgid(0, 0)               = 0
[pid 11877] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11877] write(3, "1000", 4)         = 4
[pid 11877] close(3)                    = 0
[pid 11877] write(1, "executing program\n", 18executing program
) = 18
[pid 11877] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11877] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11877] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11877] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11877] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11877] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11877] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11878 attached
 => {parent_tid=[11878]}, 88) = 11878
[pid 11878] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11878] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11878] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11877] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11877] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11878] <... futex resumed>)        = 0
[pid 11878] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11878] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11878] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11877] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11877] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11878] <... futex resumed>)        = 0
[pid 11878] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11878] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11878] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11877] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11877] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11878] <... futex resumed>)        = 0
[pid 11878] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11878] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11878] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11877] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11877] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11878] <... futex resumed>)        = 0
[pid 11878] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11877] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11878] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11878] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11877] <... futex resumed>)        = 0
[pid 11877] exit_group(0 <unfinished ...>
[pid 11878] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11877] <... exit_group resumed>)   = ?
[pid 11878] <... futex resumed>)        = ?
[pid 11878] +++ exited with 0 +++
[pid 11877] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11877, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11879
./strace-static-x86_64: Process 11879 attached
[pid 11879] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11879] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11879] setpgid(0, 0)               = 0
[pid 11879] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11879] write(3, "1000", 4)         = 4
[pid 11879] close(3)                    = 0
[pid 11879] write(1, "executing program\n", 18executing program
) = 18
[pid 11879] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11879] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11879] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11879] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11879] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11879] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11879] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11880]}, 88) = 11880
[pid 11879] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11879] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11879] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11880 attached
 <unfinished ...>
[pid 11880] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11880] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11880] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11880] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11879] <... futex resumed>)        = 0
[pid 11879] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11879] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11880] <... futex resumed>)        = 1
[pid 11880] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11880] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11879] <... futex resumed>)        = 0
[pid 11879] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11879] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11880] <... futex resumed>)        = 1
[pid 11880] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11880] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11879] <... futex resumed>)        = 0
[pid 11879] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11879] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11880] <... futex resumed>)        = 1
[pid 11880] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11880] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11879] <... futex resumed>)        = 0
[pid 11879] exit_group(0)               = ?
[pid 11880] <... futex resumed>)        = ?
[pid 11880] +++ exited with 0 +++
[pid 11879] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11879, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11881
./strace-static-x86_64: Process 11881 attached
[pid 11881] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11881] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11881] setpgid(0, 0)               = 0
[pid 11881] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11881] write(3, "1000", 4)         = 4
[pid 11881] close(3)                    = 0
executing program
[pid 11881] write(1, "executing program\n", 18) = 18
[pid 11881] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11881] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11881] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11881] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11881] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11881] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11881] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11882]}, 88) = 11882
[pid 11881] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11881] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11881] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11882 attached
 <unfinished ...>
[pid 11882] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11882] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11882] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11882] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11881] <... futex resumed>)        = 0
[pid 11881] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11881] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11882] <... futex resumed>)        = 1
[pid 11882] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11882] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11881] <... futex resumed>)        = 0
[pid 11881] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11881] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11882] <... futex resumed>)        = 1
[pid 11882] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11882] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11881] <... futex resumed>)        = 0
[pid 11881] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11881] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11882] <... futex resumed>)        = 1
[pid 11882] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11882] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11881] <... futex resumed>)        = 0
[pid 11881] exit_group(0)               = ?
[pid 11882] <... futex resumed>)        = ?
[pid 11882] +++ exited with 0 +++
[pid 11881] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11881, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11883
./strace-static-x86_64: Process 11883 attached
[pid 11883] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11883] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11883] setpgid(0, 0)               = 0
[pid 11883] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11883] write(3, "1000", 4)         = 4
[pid 11883] close(3)                    = 0
[pid 11883] write(1, "executing program\n", 18executing program
) = 18
[pid 11883] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11883] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11883] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11883] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11883] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11883] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11883] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11884 attached
 <unfinished ...>
[pid 11884] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11884] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11884] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11883] <... clone3 resumed> => {parent_tid=[11884]}, 88) = 11884
[pid 11883] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11883] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11884] <... futex resumed>)        = 0
[pid 11884] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11884] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11884] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11883] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11883] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11884] <... futex resumed>)        = 0
[pid 11884] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11884] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11884] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11883] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11883] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11884] <... futex resumed>)        = 0
[pid 11884] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11884] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11884] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11883] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11883] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11884] <... futex resumed>)        = 0
[pid 11884] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11884] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11884] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11883] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11883] exit_group(0)               = ?
[pid 11884] <... futex resumed>)        = ?
[pid 11884] +++ exited with 0 +++
[pid 11883] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11883, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11885
./strace-static-x86_64: Process 11885 attached
[pid 11885] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11885] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11885] setpgid(0, 0)               = 0
[pid 11885] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11885] write(3, "1000", 4)         = 4
[pid 11885] close(3)                    = 0
executing program
[pid 11885] write(1, "executing program\n", 18) = 18
[pid 11885] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11885] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11885] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11885] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11885] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11885] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11885] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11886]}, 88) = 11886
[pid 11885] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11885] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11885] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11886 attached
 <unfinished ...>
[pid 11886] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11886] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11886] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11886] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11885] <... futex resumed>)        = 0
[pid 11885] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11885] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11886] <... futex resumed>)        = 1
[pid 11886] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11886] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11885] <... futex resumed>)        = 0
[pid 11885] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11885] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11886] <... futex resumed>)        = 1
[pid 11886] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11886] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11885] <... futex resumed>)        = 0
[pid 11885] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11885] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11886] <... futex resumed>)        = 1
[pid 11886] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11886] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11885] <... futex resumed>)        = 0
[pid 11885] exit_group(0)               = ?
[pid 11886] <... futex resumed>)        = ?
[pid 11886] +++ exited with 0 +++
[pid 11885] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11885, si_uid=0, si_status=0, 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 11887 attached
, child_tidptr=0x55558842d690) = 11887
[pid 11887] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11887] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11887] setpgid(0, 0)               = 0
[pid 11887] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11887] write(3, "1000", 4)         = 4
[pid 11887] close(3)                    = 0
executing program
[pid 11887] write(1, "executing program\n", 18) = 18
[pid 11887] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11887] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11887] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11887] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11887] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11887] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11887] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11888 attached
 => {parent_tid=[11888]}, 88) = 11888
[pid 11887] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11887] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11887] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11888] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11888] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11888] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11888] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11887] <... futex resumed>)        = 0
[pid 11887] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11887] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11888] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11888] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11887] <... futex resumed>)        = 0
[pid 11887] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11888] <... futex resumed>)        = 1
[pid 11887] <... futex resumed>)        = 0
[pid 11887] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11888] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11888] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11887] <... futex resumed>)        = 0
[pid 11887] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11887] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11888] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11888] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11887] <... futex resumed>)        = 0
[pid 11887] exit_group(0)               = ?
[pid 11888] +++ exited with 0 +++
[pid 11887] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11887, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11889
./strace-static-x86_64: Process 11889 attached
[pid 11889] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11889] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11889] setpgid(0, 0)               = 0
[pid 11889] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11889] write(3, "1000", 4)         = 4
[pid 11889] close(3)                    = 0
executing program
[pid 11889] write(1, "executing program\n", 18) = 18
[pid 11889] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11889] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11889] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11889] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11889] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11889] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11889] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11890 attached
 => {parent_tid=[11890]}, 88) = 11890
[pid 11890] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11889] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11889] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11889] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11890] <... set_robust_list resumed>) = 0
[pid 11890] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11890] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11890] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11889] <... futex resumed>)        = 0
[pid 11889] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11889] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11890] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11890] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11889] <... futex resumed>)        = 0
[pid 11889] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11889] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11890] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11890] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11889] <... futex resumed>)        = 0
[pid 11889] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11889] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11890] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11890] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11889] <... futex resumed>)        = 0
[pid 11889] exit_group(0)               = ?
[pid 11890] +++ exited with 0 +++
[pid 11889] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11889, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11891
./strace-static-x86_64: Process 11891 attached
[pid 11891] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11891] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11891] setpgid(0, 0)               = 0
[pid 11891] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11891] write(3, "1000", 4)         = 4
[pid 11891] close(3)                    = 0
[pid 11891] write(1, "executing program\n", 18executing program
) = 18
[pid 11891] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11891] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11891] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11891] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11891] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11891] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11891] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11892 attached
 => {parent_tid=[11892]}, 88) = 11892
[pid 11892] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11892] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11892] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11891] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11891] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11892] <... futex resumed>)        = 0
[pid 11892] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11892] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11892] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11891] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11891] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11892] <... futex resumed>)        = 0
[pid 11891] <... futex resumed>)        = 1
[pid 11892] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11891] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11892] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11892] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11892] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11891] <... futex resumed>)        = 0
[pid 11892] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11891] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11892] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11891] <... futex resumed>)        = 0
[pid 11891] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11892] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11892] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11892] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11891] <... futex resumed>)        = 0
[pid 11891] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11892] <... futex resumed>)        = 0
[pid 11891] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11892] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11892] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11891] <... futex resumed>)        = 0
[pid 11892] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11891] exit_group(0)               = ?
[pid 11892] <... futex resumed>)        = ?
[pid 11892] +++ exited with 0 +++
[pid 11891] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11891, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11893
./strace-static-x86_64: Process 11893 attached
[pid 11893] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11893] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11893] setpgid(0, 0)               = 0
[pid 11893] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11893] write(3, "1000", 4)         = 4
[pid 11893] close(3)                    = 0
[pid 11893] write(1, "executing program\n", 18executing program
) = 18
[pid 11893] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11893] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11893] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11893] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11893] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11893] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11893] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11894 attached
 => {parent_tid=[11894]}, 88) = 11894
[pid 11894] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11894] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11894] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11893] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11893] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11894] <... futex resumed>)        = 0
[pid 11894] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11893] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11894] <... 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 11894] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11894] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11893] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11893] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11894] <... futex resumed>)        = 0
[pid 11894] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11894] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11894] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11893] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11893] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11894] <... futex resumed>)        = 0
[pid 11894] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11893] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11894] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11894] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11894] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11893] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11893] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11894] <... futex resumed>)        = 0
[pid 11894] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11893] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11894] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11894] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11894] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11893] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11893] exit_group(0)               = ?
[pid 11894] <... futex resumed>)        = ?
[pid 11894] +++ exited with 0 +++
[pid 11893] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11893, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11895
./strace-static-x86_64: Process 11895 attached
[pid 11895] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11895] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11895] setpgid(0, 0)               = 0
[pid 11895] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11895] write(3, "1000", 4)         = 4
[pid 11895] close(3)                    = 0
[pid 11895] write(1, "executing program\n", 18executing program
) = 18
[pid 11895] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11895] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11895] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11895] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11895] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11895] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11895] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11896 attached
 => {parent_tid=[11896]}, 88) = 11896
[pid 11896] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11896] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11896] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11895] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11895] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11896] <... futex resumed>)        = 0
[pid 11895] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11896] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11896] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11896] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11895] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11895] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11896] <... futex resumed>)        = 0
[pid 11896] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11896] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11896] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11895] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11895] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11896] <... futex resumed>)        = 0
[pid 11896] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11896] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11896] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11895] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11895] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11896] <... futex resumed>)        = 0
[pid 11896] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11895] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11896] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11896] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11896] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11895] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11895] exit_group(0)               = ?
[pid 11896] <... futex resumed>)        = ?
[pid 11896] +++ exited with 0 +++
[pid 11895] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11895, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11897
./strace-static-x86_64: Process 11897 attached
[pid 11897] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11897] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11897] setpgid(0, 0)               = 0
[pid 11897] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11897] write(3, "1000", 4)         = 4
[pid 11897] close(3)                    = 0
[pid 11897] write(1, "executing program\n", 18executing program
) = 18
[pid 11897] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11897] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11897] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11897] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11897] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11897] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11897] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11898]}, 88) = 11898
[pid 11897] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11897] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11897] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11898 attached
 <unfinished ...>
[pid 11898] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11898] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11898] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11898] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11897] <... futex resumed>)        = 0
[pid 11897] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11897] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11898] <... futex resumed>)        = 1
[pid 11898] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11898] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11897] <... futex resumed>)        = 0
[pid 11897] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11897] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11898] <... futex resumed>)        = 1
[pid 11898] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11898] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11897] <... futex resumed>)        = 0
[pid 11897] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11897] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11898] <... futex resumed>)        = 1
[pid 11898] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11898] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11897] <... futex resumed>)        = 0
[pid 11897] exit_group(0)               = ?
[pid 11898] <... futex resumed>)        = ?
[pid 11898] +++ exited with 0 +++
[pid 11897] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11897, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11899
./strace-static-x86_64: Process 11899 attached
[pid 11899] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11899] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11899] setpgid(0, 0)               = 0
[pid 11899] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11899] write(3, "1000", 4)         = 4
[pid 11899] close(3)                    = 0
[pid 11899] write(1, "executing program\n", 18executing program
) = 18
[pid 11899] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11899] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11899] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11899] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11899] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11899] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11899] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11900 attached
 <unfinished ...>
[pid 11900] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11900] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11900] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11899] <... clone3 resumed> => {parent_tid=[11900]}, 88) = 11900
[pid 11899] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11899] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11900] <... futex resumed>)        = 0
[pid 11900] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11900] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11900] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11899] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11899] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11900] <... futex resumed>)        = 0
[pid 11900] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11899] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11900] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11899] <... futex resumed>)        = 0
[pid 11899] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11900] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11899] <... futex resumed>)        = 0
[pid 11900] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11899] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11900] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11899] <... futex resumed>)        = 0
[pid 11899] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11899] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11900] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11900] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11899] <... futex resumed>)        = 0
[pid 11899] exit_group(0)               = ?
[pid 11900] +++ exited with 0 +++
[pid 11899] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11899, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11901
./strace-static-x86_64: Process 11901 attached
[pid 11901] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11901] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11901] setpgid(0, 0)               = 0
[pid 11901] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11901] write(3, "1000", 4)         = 4
[pid 11901] close(3)                    = 0
executing program
[pid 11901] write(1, "executing program\n", 18) = 18
[pid 11901] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11901] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11901] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11901] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11901] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11901] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11901] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11902 attached
 => {parent_tid=[11902]}, 88) = 11902
[pid 11902] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11901] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11901] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11901] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11902] <... set_robust_list resumed>) = 0
[pid 11902] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11902] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11901] <... futex resumed>)        = 0
[pid 11901] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11901] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11902] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11902] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11901] <... futex resumed>)        = 0
[pid 11901] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11901] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11902] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11902] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11901] <... futex resumed>)        = 0
[pid 11901] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11901] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11902] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11902] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11901] <... futex resumed>)        = 0
[pid 11901] exit_group(0)               = ?
[pid 11902] +++ exited with 0 +++
[pid 11901] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11901, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11903
./strace-static-x86_64: Process 11903 attached
[pid 11903] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11903] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11903] setpgid(0, 0)               = 0
[pid 11903] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11903] write(3, "1000", 4)         = 4
[pid 11903] close(3)                    = 0
[pid 11903] write(1, "executing program\n", 18executing program
) = 18
[pid 11903] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11903] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11903] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11903] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11903] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11903] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11903] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11904 attached
 => {parent_tid=[11904]}, 88) = 11904
[pid 11904] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11904] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11904] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11903] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11903] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11904] <... futex resumed>)        = 0
[pid 11903] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11904] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11904] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11904] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11903] <... futex resumed>)        = 0
[pid 11903] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11904] <... futex resumed>)        = 0
[pid 11904] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11904] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11904] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11903] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11903] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11904] <... futex resumed>)        = 0
[pid 11903] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11904] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11904] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11904] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11903] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11903] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11904] <... futex resumed>)        = 0
[pid 11904] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11904] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11903] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11904] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11903] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11903] exit_group(0)               = ?
[pid 11904] <... futex resumed>)        = ?
[pid 11904] +++ exited with 0 +++
[pid 11903] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11903, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11905
./strace-static-x86_64: Process 11905 attached
[pid 11905] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11905] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11905] setpgid(0, 0)               = 0
[pid 11905] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11905] write(3, "1000", 4)         = 4
[pid 11905] close(3)                    = 0
[pid 11905] write(1, "executing program\n", 18executing program
) = 18
[pid 11905] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11905] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11905] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11905] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11905] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11905] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11905] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11906 attached
 => {parent_tid=[11906]}, 88) = 11906
[pid 11905] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11905] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11905] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11906] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11906] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11906] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11906] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11905] <... futex resumed>)        = 0
[pid 11905] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11905] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11906] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11906] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11905] <... futex resumed>)        = 0
[pid 11905] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11905] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11906] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11906] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11905] <... futex resumed>)        = 0
[pid 11905] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11905] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11906] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11906] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11905] <... futex resumed>)        = 0
[pid 11905] exit_group(0)               = ?
[pid 11906] +++ exited with 0 +++
[pid 11905] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11905, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11907
./strace-static-x86_64: Process 11907 attached
[pid 11907] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11907] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11907] setpgid(0, 0)               = 0
[pid 11907] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11907] write(3, "1000", 4)         = 4
[pid 11907] close(3)                    = 0
[pid 11907] write(1, "executing program\n", 18executing program
) = 18
[pid 11907] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11907] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11907] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11907] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11907] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11907] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11907] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11908 attached
 => {parent_tid=[11908]}, 88) = 11908
[pid 11907] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11907] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11907] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11908] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11908] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11908] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11908] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11907] <... futex resumed>)        = 0
[pid 11907] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11907] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11908] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11908] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11907] <... futex resumed>)        = 0
[pid 11907] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11907] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11908] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11908] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11907] <... futex resumed>)        = 0
[pid 11907] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11907] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11908] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11908] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11907] <... futex resumed>)        = 0
[pid 11907] exit_group(0)               = ?
[pid 11908] +++ exited with 0 +++
[pid 11907] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11907, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11909
./strace-static-x86_64: Process 11909 attached
[pid 11909] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11909] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11909] setpgid(0, 0)               = 0
[pid 11909] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11909] write(3, "1000", 4)         = 4
[pid 11909] close(3executing program
)                    = 0
[pid 11909] write(1, "executing program\n", 18) = 18
[pid 11909] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11909] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11909] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11909] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11909] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11909] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11909] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11910]}, 88) = 11910
[pid 11909] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11909] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11909] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11910 attached
 <unfinished ...>
[pid 11910] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11910] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11910] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11910] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11909] <... futex resumed>)        = 0
[pid 11910] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11909] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11909] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11910] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11910] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11909] <... futex resumed>)        = 0
[pid 11909] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11909] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11910] <... futex resumed>)        = 1
[pid 11910] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11910] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11909] <... futex resumed>)        = 0
[pid 11909] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11909] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11910] <... futex resumed>)        = 1
[pid 11910] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11910] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11909] <... futex resumed>)        = 0
[pid 11909] exit_group(0)               = ?
[pid 11910] +++ exited with 0 +++
[pid 11909] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11909, si_uid=0, si_status=0, 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 11911 attached
, child_tidptr=0x55558842d690) = 11911
[pid 11911] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11911] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11911] setpgid(0, 0)               = 0
[pid 11911] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11911] write(3, "1000", 4)         = 4
[pid 11911] close(3)                    = 0
[pid 11911] write(1, "executing program\n", 18executing program
) = 18
[pid 11911] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11911] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11911] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11911] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11911] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11911] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11911] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11912 attached
 => {parent_tid=[11912]}, 88) = 11912
[pid 11912] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11912] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11912] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11911] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11911] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11912] <... futex resumed>)        = 0
[pid 11912] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11912] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11912] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11911] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11911] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11912] <... futex resumed>)        = 0
[pid 11912] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11912] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11912] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11911] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11911] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11912] <... futex resumed>)        = 0
[pid 11912] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11912] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11912] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11911] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11911] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11912] <... futex resumed>)        = 0
[pid 11912] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11912] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11912] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11911] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11911] exit_group(0)               = ?
[pid 11912] <... futex resumed>)        = ?
[pid 11912] +++ exited with 0 +++
[pid 11911] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11911, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11913
./strace-static-x86_64: Process 11913 attached
[pid 11913] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11913] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11913] setpgid(0, 0)               = 0
[pid 11913] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11913] write(3, "1000", 4)         = 4
[pid 11913] close(3)                    = 0
executing program
[pid 11913] write(1, "executing program\n", 18) = 18
[pid 11913] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11913] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11913] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11913] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11913] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11913] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11913] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11914 attached
 => {parent_tid=[11914]}, 88) = 11914
[pid 11913] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11913] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11913] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11914] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11914] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11914] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11914] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11913] <... futex resumed>)        = 0
[pid 11913] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11913] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11914] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11914] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11913] <... futex resumed>)        = 0
[pid 11913] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11913] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11914] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11914] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11913] <... futex resumed>)        = 0
[pid 11913] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11913] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11914] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11914] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11913] <... futex resumed>)        = 0
[pid 11913] exit_group(0)               = ?
[pid 11914] +++ exited with 0 +++
[pid 11913] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11913, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11915
./strace-static-x86_64: Process 11915 attached
[pid 11915] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11915] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11915] setpgid(0, 0)               = 0
[pid 11915] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11915] write(3, "1000", 4)         = 4
[pid 11915] close(3)                    = 0
[pid 11915] write(1, "executing program\n", 18executing program
) = 18
[pid 11915] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11915] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11915] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11915] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11915] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11915] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11915] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11916 attached
 => {parent_tid=[11916]}, 88) = 11916
[pid 11916] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11916] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11916] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11915] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11915] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11916] <... futex resumed>)        = 0
[pid 11916] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11915] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11916] <... 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 11916] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11916] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11915] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11915] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11916] <... futex resumed>)        = 0
[pid 11916] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11915] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11916] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11916] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11916] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11915] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11915] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11916] <... futex resumed>)        = 0
[pid 11916] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11916] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11916] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11915] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11915] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11916] <... futex resumed>)        = 0
[pid 11916] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11915] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11916] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11916] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11916] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11915] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11915] exit_group(0)               = ?
[pid 11916] <... futex resumed>)        = ?
[pid 11916] +++ exited with 0 +++
[pid 11915] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11915, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11917
./strace-static-x86_64: Process 11917 attached
[pid 11917] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11917] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11917] setpgid(0, 0)               = 0
[pid 11917] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11917] write(3, "1000", 4)         = 4
[pid 11917] close(3)                    = 0
[pid 11917] write(1, "executing program\n", 18executing program
) = 18
[pid 11917] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11917] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11917] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11917] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11917] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11917] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11917] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11918 attached
 => {parent_tid=[11918]}, 88) = 11918
[pid 11918] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11918] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11918] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11917] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11917] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11918] <... futex resumed>)        = 0
[pid 11918] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11918] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11918] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11917] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11917] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11918] <... futex resumed>)        = 0
[pid 11918] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11918] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11918] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11917] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11917] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11918] <... futex resumed>)        = 0
[pid 11918] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11918] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11918] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11917] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11917] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11918] <... futex resumed>)        = 0
[pid 11918] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11918] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11918] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11917] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11917] exit_group(0)               = ?
[pid 11918] <... futex resumed>)        = ?
[pid 11918] +++ exited with 0 +++
[pid 11917] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11917, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11919
./strace-static-x86_64: Process 11919 attached
[pid 11919] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11919] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11919] setpgid(0, 0)               = 0
[pid 11919] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11919] write(3, "1000", 4)         = 4
[pid 11919] close(3)                    = 0
[pid 11919] write(1, "executing program\n", 18executing program
) = 18
[pid 11919] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11919] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11919] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11919] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11919] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11919] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11919] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11920 attached
 <unfinished ...>
[pid 11920] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11920] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11920] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11919] <... clone3 resumed> => {parent_tid=[11920]}, 88) = 11920
[pid 11919] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11919] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11920] <... futex resumed>)        = 0
[pid 11920] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11920] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11919] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11920] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11919] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11919] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11920] <... futex resumed>)        = 0
[pid 11920] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11919] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11920] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11920] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11919] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11919] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11920] <... futex resumed>)        = 0
[pid 11920] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11920] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11920] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11919] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11919] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11920] <... futex resumed>)        = 0
[pid 11920] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11920] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11920] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11919] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11919] exit_group(0)               = ?
[pid 11920] <... futex resumed>)        = ?
[pid 11920] +++ exited with 0 +++
[pid 11919] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11919, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11921
./strace-static-x86_64: Process 11921 attached
[pid 11921] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11921] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11921] setpgid(0, 0)               = 0
[pid 11921] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11921] write(3, "1000", 4)         = 4
[pid 11921] close(3executing program
)                    = 0
[pid 11921] write(1, "executing program\n", 18) = 18
[pid 11921] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11921] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11921] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11921] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11921] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11921] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11921] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11922]}, 88) = 11922
[pid 11921] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11921] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11921] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11922 attached
 <unfinished ...>
[pid 11922] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11922] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11922] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11922] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11921] <... futex resumed>)        = 0
[pid 11921] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11921] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11922] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11922] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11921] <... futex resumed>)        = 0
[pid 11921] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11921] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11922] 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11921] <... futex resumed>)        = 0
[pid 11921] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11921] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11922] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11922] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11921] <... futex resumed>)        = 0
[pid 11921] exit_group(0)               = ?
[pid 11922] +++ exited with 0 +++
[pid 11921] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11921, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11923
./strace-static-x86_64: Process 11923 attached
[pid 11923] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11923] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11923] setpgid(0, 0)               = 0
[pid 11923] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11923] write(3, "1000", 4)         = 4
[pid 11923] close(3)                    = 0
[pid 11923] write(1, "executing program\n", 18executing program
) = 18
[pid 11923] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11923] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11923] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11923] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11923] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11923] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11923] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11924 attached
 => {parent_tid=[11924]}, 88) = 11924
[pid 11923] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11923] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11923] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11924] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11924] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11924] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 11924] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11923] <... futex resumed>)        = 0
[pid 11923] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11923] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11924] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11924] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11923] <... futex resumed>)        = 0
[pid 11923] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11924] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11923] <... futex resumed>)        = 0
[pid 11923] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11924] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11924] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11923] <... futex resumed>)        = 0
[pid 11923] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11923] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11924] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11924] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11923] <... futex resumed>)        = 0
[pid 11923] exit_group(0)               = ?
[pid 11924] +++ exited with 0 +++
[pid 11923] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11923, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11925
./strace-static-x86_64: Process 11925 attached
[pid 11925] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11925] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 11925] setpgid(0, 0)               = 0
[pid 11925] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 11925] write(3, "1000", 4)         = 4
[pid 11925] close(3)                    = 0
[pid 11925] write(1, "executing program\n", 18executing program
) = 18
[pid 11925] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11925] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 11925] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 11925] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 11925] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 11925] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 11925] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11927 attached
 => {parent_tid=[11927]}, 88) = 11927
[pid 11927] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11927] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11927] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11925] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11925] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11927] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11925] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11925] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11927] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11925] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11925] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11927] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11925] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11925] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11927] <... futex resumed>)        = 0
[pid 11927] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11927] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11927] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11925] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11925] exit_group(0)               = ?
[pid 11927] <... futex resumed>)        = ?
[pid 11927] +++ exited with 0 +++
[pid 11925] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11925, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11928
./strace-static-x86_64: Process 11928 attached
[pid 11928] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11928] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11928] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11929 attached
 => {parent_tid=[11929]}, 88) = 11929
[pid 11928] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11928] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11928] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11929] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11929] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11929] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11928] <... futex resumed>)        = 0
[pid 11928] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11928] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11929] <... futex resumed>)        = 1
[pid 11929] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11929] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11928] <... futex resumed>)        = 0
[pid 11928] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11928] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11929] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11928] <... futex resumed>)        = 0
[pid 11928] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11928] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11929] <... futex resumed>)        = 1
[pid 11929] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11929] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11928] <... futex resumed>)        = 0
[pid 11928] exit_group(0)               = ?
[pid 11929] <... futex resumed>)        = ?
[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=0x55558842d690) = 11930
./strace-static-x86_64: Process 11930 attached
[pid 11930] set_robust_list(0x55558842d6a0, 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
executing program
[pid 11930] write(1, "executing program\n", 18) = 18
[pid 11930] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11930] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11930] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11931 attached
 => {parent_tid=[11931]}, 88) = 11931
[pid 11931] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11930] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11931] <... set_robust_list resumed>) = 0
[pid 11930] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11931] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11930] <... futex resumed>)        = 0
[pid 11931] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11930] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11930] <... futex resumed>)        = 0
[pid 11930] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11930] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11930] <... futex resumed>)        = 0
[pid 11931] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11930] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11931] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11931] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11930] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11930] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11931] <... futex resumed>)        = 0
[pid 11931] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11931] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11931] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11930] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11930] exit_group(0)               = ?
[pid 11931] <... futex resumed>)        = ?
[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=0x55558842d690) = 11932
./strace-static-x86_64: Process 11932 attached
[pid 11932] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11932] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11932] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11933 attached
 => {parent_tid=[11933]}, 88) = 11933
[pid 11933] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11933] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11933] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11932] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11932] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11933] <... futex resumed>)        = 0
[pid 11933] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11932] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11933] <... 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 11933] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11933] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11932] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11932] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11933] <... futex resumed>)        = 0
[pid 11933] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11933] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11933] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11932] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11932] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11933] <... futex resumed>)        = 0
[pid 11933] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11932] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11933] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11933] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11933] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11932] <... futex resumed>)        = 0
[pid 11932] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11933] <... futex resumed>)        = 0
[pid 11932] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11933] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11933] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11932] <... futex resumed>)        = 0
[pid 11933] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[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./strace-static-x86_64: Process 11934 attached
, child_tidptr=0x55558842d690) = 11934
[pid 11934] set_robust_list(0x55558842d6a0, 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
[pid 11934] write(1, "executing program\n", 18executing program
) = 18
[pid 11934] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11934] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11934] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11935]}, 88) = 11935
./strace-static-x86_64: Process 11935 attached
[pid 11935] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11935] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11935] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11934] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11934] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11935] <... futex resumed>)        = 0
[pid 11934] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11935] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11934] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11934] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11935] <... futex resumed>)        = 0
[pid 11935] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11935] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11935] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11934] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11934] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11935] <... futex resumed>)        = 0
[pid 11935] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11935] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11935] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11934] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11934] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11935] <... futex resumed>)        = 0
[pid 11934] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11935] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11935] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11935] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11934] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11934] exit_group(0)               = ?
[pid 11935] <... futex 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=0x55558842d690) = 11936
./strace-static-x86_64: Process 11936 attached
[pid 11936] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11936] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11936] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11937 attached
 => {parent_tid=[11937]}, 88) = 11937
[pid 11937] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11937] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11937] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11936] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11936] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11937] <... futex resumed>)        = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11937] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11936] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11936] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11937] <... futex resumed>)        = 0
[pid 11937] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11937] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11937] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11936] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11936] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11937] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11937] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11936] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11936] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11937] <... futex resumed>)        = 0
[pid 11937] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11937] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11937] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11936] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11936] exit_group(0)               = ?
[pid 11937] <... futex 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, child_tidptr=0x55558842d690) = 11938
./strace-static-x86_64: Process 11938 attached
[pid 11938] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11938] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11938] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11939 attached
 => {parent_tid=[11939]}, 88) = 11939
[pid 11939] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11939] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11939] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11938] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11938] futex(0x7fee38f303e8, 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, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11939] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11938] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11938] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11939] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11938] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11938] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11939] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11939] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11938] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11938] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11939] <... futex resumed>)        = 0
[pid 11939] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11938] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11939] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11939] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11939] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11938] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11938] exit_group(0)               = ?
[pid 11939] <... futex resumed>)        = ?
[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=0x55558842d690) = 11940
./strace-static-x86_64: Process 11940 attached
[pid 11940] set_robust_list(0x55558842d6a0, 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
executing program
[pid 11940] write(1, "executing program\n", 18) = 18
[pid 11940] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11940] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11940] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11941]}, 88) = 11941
[pid 11940] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11940] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11940] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11941 attached
 <unfinished ...>
[pid 11941] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11940] <... futex resumed>)        = 0
[pid 11940] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11940] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11941] <... futex resumed>)        = 1
[pid 11941] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11941] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11940] <... futex resumed>)        = 0
[pid 11940] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11940] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11941] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11940] <... futex resumed>)        = 0
[pid 11940] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11940] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11941] <... futex resumed>)        = 1
[pid 11941] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11941] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11940] <... futex resumed>)        = 0
[pid 11940] exit_group(0)               = ?
[pid 11941] <... futex resumed>)        = ?
[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./strace-static-x86_64: Process 11942 attached
, child_tidptr=0x55558842d690) = 11942
[pid 11942] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11942] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11942] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11943 attached
 => {parent_tid=[11943]}, 88) = 11943
[pid 11943] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11943] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11943] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11942] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11942] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11943] <... futex resumed>)        = 0
[pid 11942] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11943] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11942] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11942] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11943] <... futex resumed>)        = 0
[pid 11943] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11943] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11943] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11942] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11942] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11943] <... futex resumed>)        = 0
[pid 11943] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11943] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11943] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11942] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11942] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11943] <... futex resumed>)        = 0
[pid 11943] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11943] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11942] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11943] <... futex resumed>)        = 0
[pid 11943] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11942] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11942] exit_group(0)               = ?
[pid 11943] <... futex 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=0x55558842d690) = 11944
./strace-static-x86_64: Process 11944 attached
[pid 11944] set_robust_list(0x55558842d6a0, 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
executing program
[pid 11944] close(3)                    = 0
[pid 11944] write(1, "executing program\n", 18) = 18
[pid 11944] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11944] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11944] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11945 attached
 => {parent_tid=[11945]}, 88) = 11945
[pid 11944] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11944] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11944] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11945] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11944] <... futex resumed>)        = 0
[pid 11944] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11944] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11945] <... futex resumed>)        = 1
[pid 11945] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11945] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11944] <... futex resumed>)        = 0
[pid 11944] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11944] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11945] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11944] <... futex resumed>)        = 0
[pid 11944] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11944] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11945] <... futex resumed>)        = 1
[pid 11945] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11945] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11944] <... futex resumed>)        = 0
[pid 11944] exit_group(0)               = ?
[pid 11945] <... futex resumed>)        = ?
[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=0x55558842d690) = 11946
./strace-static-x86_64: Process 11946 attached
[pid 11946] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11946] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11946] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11947 attached
 => {parent_tid=[11947]}, 88) = 11947
[pid 11947] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11946] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11946] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11946] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11947] <... set_robust_list resumed>) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11946] <... futex resumed>)        = 0
[pid 11946] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11946] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11947] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11947] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11946] <... futex resumed>)        = 0
[pid 11946] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11946] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11946] <... futex resumed>)        = 0
[pid 11947] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11946] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11946] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11947] <... futex resumed>)        = 0
[pid 11947] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11947] futex(0x7fee38f303ec, 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=0x55558842d690) = 11948
./strace-static-x86_64: Process 11948 attached
[pid 11948] set_robust_list(0x55558842d6a0, 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
[pid 11948] write(1, "executing program\n", 18executing program
) = 18
[pid 11948] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11948] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11948] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11949 attached
 <unfinished ...>
[pid 11949] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11949] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11949] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11948] <... clone3 resumed> => {parent_tid=[11949]}, 88) = 11949
[pid 11948] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11948] futex(0x7fee38f303e8, 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, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11949] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11948] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11948] futex(0x7fee38f303e8, 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 11949] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11949] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11948] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11948] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11949] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11949] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11948] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11948] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11949] <... futex resumed>)        = 0
[pid 11948] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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./strace-static-x86_64: Process 11950 attached
, child_tidptr=0x55558842d690) = 11950
[pid 11950] set_robust_list(0x55558842d6a0, 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(3executing program
)                    = 0
[pid 11950] write(1, "executing program\n", 18) = 18
[pid 11950] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11950] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11950] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11951]}, 88) = 11951
[pid 11950] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11950] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11950] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11951 attached
 <unfinished ...>
[pid 11951] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11951] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11950] <... futex resumed>)        = 0
[pid 11950] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11950] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11951] <... futex resumed>)        = 1
[pid 11951] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11951] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11950] <... futex resumed>)        = 0
[pid 11950] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11950] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11951] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11950] <... futex resumed>)        = 0
[pid 11950] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11950] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11951] <... futex resumed>)        = 1
[pid 11951] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11951] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11950] <... futex resumed>)        = 0
[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, child_tidptr=0x55558842d690) = 11952
./strace-static-x86_64: Process 11952 attached
[pid 11952] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11952] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11952] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11953]}, 88) = 11953
[pid 11952] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11952] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11952] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11953 attached
 <unfinished ...>
[pid 11953] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11953] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11952] <... futex resumed>)        = 0
[pid 11952] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11952] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11953] <... futex resumed>)        = 1
[pid 11953] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11953] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11952] <... futex resumed>)        = 0
[pid 11952] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11952] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11953] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11952] <... futex resumed>)        = 0
[pid 11952] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11952] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11953] <... futex resumed>)        = 1
[pid 11953] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11953] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11952] <... futex resumed>)        = 0
[pid 11952] exit_group(0)               = ?
[pid 11953] <... futex resumed>)        = ?
[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=0x55558842d690) = 11954
./strace-static-x86_64: Process 11954 attached
[pid 11954] set_robust_list(0x55558842d6a0, 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", 4)         = 4
[pid 11954] close(3)                    = 0
[pid 11954] write(1, "executing program\n", 18executing program
) = 18
[pid 11954] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11954] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11954] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11955 attached
 => {parent_tid=[11955]}, 88) = 11955
[pid 11955] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11954] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11955] <... set_robust_list resumed>) = 0
[pid 11954] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11955] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11954] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11955] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11954] <... futex resumed>)        = 0
[pid 11954] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11954] <... futex resumed>)        = 0
[pid 11955] <... futex resumed>)        = 1
[pid 11954] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11955] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11954] <... futex resumed>)        = 0
[pid 11954] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11954] <... futex resumed>)        = 0
[pid 11955] <... futex resumed>)        = 1
[pid 11954] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11955] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11954] <... futex resumed>)        = 0
[pid 11954] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11955] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11955] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11954] <... futex resumed>)        = 0
[pid 11955] <... futex resumed>)        = 1
[pid 11954] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11954] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11954] <... futex resumed>)        = 0
[pid 11955] <... futex resumed>)        = 1
[pid 11954] exit_group(0 <unfinished ...>
[pid 11955] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 (errno 18446744073709551414)
[pid 11954] <... exit_group resumed>)   = ?
[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, child_tidptr=0x55558842d690) = 11956
./strace-static-x86_64: Process 11956 attached
[pid 11956] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11956] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11956] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11957 attached
 => {parent_tid=[11957]}, 88) = 11957
[pid 11957] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11957] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11957] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11956] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11956] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11957] <... futex resumed>)        = 0
[pid 11956] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11956] <... futex resumed>)        = 0
[pid 11956] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11956] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11957] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11957] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11956] <... futex resumed>)        = 0
[pid 11956] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11956] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11956] <... futex resumed>)        = 0
[pid 11956] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11956] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11956] <... futex resumed>)        = 0
[pid 11956] exit_group(0)               = ?
[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=0x55558842d690) = 11958
./strace-static-x86_64: Process 11958 attached
[pid 11958] set_robust_list(0x55558842d6a0, 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(3executing program
)                    = 0
[pid 11958] write(1, "executing program\n", 18) = 18
[pid 11958] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11958] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11958] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11959 attached
 <unfinished ...>
[pid 11959] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11958] <... clone3 resumed> => {parent_tid=[11959]}, 88) = 11959
[pid 11958] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11959] <... set_robust_list resumed>) = 0
[pid 11958] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11959] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11958] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11959] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11958] <... futex resumed>)        = 0
[pid 11959] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11958] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11959] <... 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 11959] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11958] <... futex resumed>)        = 0
[pid 11958] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11958] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11958] <... futex resumed>)        = 0
[pid 11958] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11958] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11958] <... futex resumed>)        = 0
[pid 11958] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11958] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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=0x55558842d690) = 11960
./strace-static-x86_64: Process 11960 attached
[pid 11960] set_robust_list(0x55558842d6a0, 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
[pid 11960] write(1, "executing program\n", 18executing program
) = 18
[pid 11960] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11960] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11960] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11961 attached
 <unfinished ...>
[pid 11961] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11961] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11961] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11960] <... clone3 resumed> => {parent_tid=[11961]}, 88) = 11961
[pid 11960] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11960] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11961] <... futex resumed>)        = 0
[pid 11961] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11961] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11960] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11960] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11961] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11960] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11960] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11961] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11960] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11960] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11961] <... futex resumed>)        = 0
[pid 11961] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11961] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11961] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11960] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11960] exit_group(0)               = ?
[pid 11961] <... futex 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=0x55558842d690) = 11962
./strace-static-x86_64: Process 11962 attached
[pid 11962] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11962] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11962] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11963 attached
 => {parent_tid=[11963]}, 88) = 11963
[pid 11962] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11962] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11962] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11963] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11963] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11962] <... futex resumed>)        = 0
[pid 11962] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11962] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11962] <... futex resumed>)        = 0
[pid 11962] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11962] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11962] <... futex resumed>)        = 0
[pid 11962] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11962] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11963] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11963] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11962] <... futex resumed>)        = 0
[pid 11962] exit_group(0)               = ?
[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=0x55558842d690) = 11964
./strace-static-x86_64: Process 11964 attached
[pid 11964] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11964] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11964] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11965 attached
 <unfinished ...>
[pid 11965] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11965] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11965] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11964] <... clone3 resumed> => {parent_tid=[11965]}, 88) = 11965
[pid 11964] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11964] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11965] <... futex resumed>)        = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11965] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11964] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11964] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11965] <... futex resumed>)        = 0
[pid 11965] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11965] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11965] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11964] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11964] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11965] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11965] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11964] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11964] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11965] <... futex resumed>)        = 0
[pid 11965] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11964] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11965] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11965] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11965] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11964] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11964] exit_group(0)               = ?
[pid 11965] <... futex resumed>)        = ?
[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
, child_tidptr=0x55558842d690) = 11966
[pid 11966] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11966] prctl(PR_SET_PDEATHSIG, SIGKILL) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11966] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11966] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11967 attached
 => {parent_tid=[11967]}, 88) = 11967
[pid 11966] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11966] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11966] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11967] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11967] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11967] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11966] <... futex resumed>)        = 0
[pid 11967] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11966] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11967] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11966] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11967] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11966] <... futex resumed>)        = 0
[pid 11966] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11966] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11966] <... futex resumed>)        = 0
[pid 11967] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11966] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11966] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11967] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11967] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11967] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11966] <... futex resumed>)        = 0
[pid 11967] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11966] exit_group(0)               = ?
[pid 11967] <... futex resumed>)        = ?
[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=0x55558842d690) = 11968
./strace-static-x86_64: Process 11968 attached
[pid 11968] set_robust_list(0x55558842d6a0, 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(3)                    = 0
[pid 11968] write(1, "executing program\n", 18executing program
) = 18
[pid 11968] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11968] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11968] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11969 attached
 => {parent_tid=[11969]}, 88) = 11969
[pid 11969] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11969] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11969] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11968] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11968] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11969] <... futex resumed>)        = 0
[pid 11968] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11968] <... futex resumed>)        = 0
[pid 11968] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11968] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11969] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11969] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11968] <... futex resumed>)        = 0
[pid 11968] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11968] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11969] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11969] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11968] <... futex resumed>)        = 0
[pid 11968] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11968] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11969] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11969] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11968] <... futex resumed>)        = 0
[pid 11968] exit_group(0)               = ?
[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=0x55558842d690) = 11970
./strace-static-x86_64: Process 11970 attached
[pid 11970] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11970] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11970] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11971 attached
 => {parent_tid=[11971]}, 88) = 11971
[pid 11971] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11970] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11971] <... set_robust_list resumed>) = 0
[pid 11970] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11971] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 11970] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11971] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 11970] <... futex resumed>)        = 0
[pid 11971] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11970] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11971] <... 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 11971] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11971] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11970] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11970] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11971] <... futex resumed>)        = 0
[pid 11971] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11970] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11971] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11971] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11971] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11970] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11970] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11971] <... futex resumed>)        = 0
[pid 11971] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11971] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11971] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11970] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11970] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11971] <... futex resumed>)        = 0
[pid 11970] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11971] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11971] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11971] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11970] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11970] exit_group(0)               = ?
[pid 11971] <... futex 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=0x55558842d690) = 11972
./strace-static-x86_64: Process 11972 attached
[pid 11972] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11972] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11972] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11973 attached
 => {parent_tid=[11973]}, 88) = 11973
[pid 11973] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11973] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11973] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11972] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11972] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11973] <... futex resumed>)        = 0
[pid 11972] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11973] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11972] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11972] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11973] <... futex resumed>)        = 0
[pid 11973] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11972] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11973] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11973] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11972] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11972] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11973] <... futex resumed>)        = 0
[pid 11973] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11973] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11973] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11972] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11972] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11973] <... futex resumed>)        = 0
[pid 11972] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11973] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11973] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11972] <... futex resumed>)        = 0
[pid 11972] exit_group(0)               = ?
[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, child_tidptr=0x55558842d690) = 11974
./strace-static-x86_64: Process 11974 attached
[pid 11974] set_robust_list(0x55558842d6a0, 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
[pid 11974] write(1, "executing program\n", 18executing program
) = 18
[pid 11974] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11974] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11974] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11975 attached
 <unfinished ...>
[pid 11975] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11975] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11975] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11974] <... clone3 resumed> => {parent_tid=[11975]}, 88) = 11975
[pid 11974] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11974] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11975] <... futex resumed>)        = 0
[pid 11975] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11974] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11975] <... 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 11975] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11974] <... futex resumed>)        = 0
[pid 11975] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11974] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11975] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11974] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11975] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11974] <... futex resumed>)        = 0
[pid 11974] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11974] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11974] <... futex resumed>)        = 0
[pid 11974] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11974] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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=0x55558842d690) = 11976
./strace-static-x86_64: Process 11976 attached
[pid 11976] set_robust_list(0x55558842d6a0, 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
[pid 11976] write(1, "executing program\n", 18executing program
) = 18
[pid 11976] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11976] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11976] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11977 attached
 => {parent_tid=[11977]}, 88) = 11977
[pid 11977] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11977] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11977] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11976] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11976] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11977] <... futex resumed>)        = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11977] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11976] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11976] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11977] <... futex resumed>)        = 0
[pid 11977] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11977] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11977] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11976] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11976] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11977] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11977] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11976] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11976] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11977] <... futex resumed>)        = 0
[pid 11977] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11977] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11977] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11976] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[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=0x55558842d690) = 11978
./strace-static-x86_64: Process 11978 attached
[pid 11978] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11978] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11978] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11979 attached
 => {parent_tid=[11979]}, 88) = 11979
[pid 11979] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11979] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11979] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11978] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11978] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11979] <... futex resumed>)        = 0
[pid 11979] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 11978] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11979] <... 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 11979] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11978] <... futex resumed>)        = 0
[pid 11978] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11978] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11979] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11979] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11978] <... futex resumed>)        = 0
[pid 11978] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11978] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11978] <... futex resumed>)        = 0
[pid 11978] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11979] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11978] <... futex resumed>)        = 0
[pid 11978] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11979] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11979] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11978] <... futex resumed>)        = 0
[pid 11979] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[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=0x55558842d690) = 11980
[pid 11980] set_robust_list(0x55558842d6a0, 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", 4executing program
)         = 4
[pid 11980] close(3)                    = 0
[pid 11980] write(1, "executing program\n", 18) = 18
[pid 11980] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11980] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11980] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11981]}, 88) = 11981
[pid 11980] rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 11981 attached
NULL, 8) = 0
[pid 11980] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11981] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 11980] <... futex resumed>)        = 0
[pid 11981] <... set_robust_list resumed>) = 0
[pid 11980] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11981] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11980] <... futex resumed>)        = 0
[pid 11980] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11980] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11981] <... futex resumed>)        = 1
[pid 11981] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11981] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11980] <... futex resumed>)        = 0
[pid 11980] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11980] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11981] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11980] <... futex resumed>)        = 0
[pid 11980] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11980] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11981] <... futex resumed>)        = 1
[pid 11981] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11981] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11980] <... futex resumed>)        = 0
[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=0x55558842d690) = 11982
./strace-static-x86_64: Process 11982 attached
[pid 11982] set_robust_list(0x55558842d6a0, 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
executing program
[pid 11982] write(1, "executing program\n", 18) = 18
[pid 11982] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11982] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11982] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11983]}, 88) = 11983
[pid 11982] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11982] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11982] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11983 attached
 <unfinished ...>
[pid 11983] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11983] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11982] <... futex resumed>)        = 0
[pid 11982] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11982] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11983] <... futex resumed>)        = 1
[pid 11983] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11983] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11982] <... futex resumed>)        = 0
[pid 11982] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11982] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11983] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11982] <... futex resumed>)        = 0
[pid 11982] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11982] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11983] <... futex resumed>)        = 1
[pid 11983] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11983] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11982] <... futex resumed>)        = 0
[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=0x55558842d690) = 11984
./strace-static-x86_64: Process 11984 attached
[pid 11984] set_robust_list(0x55558842d6a0, 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
executing program
[pid 11984] write(1, "executing program\n", 18) = 18
[pid 11984] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11984] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11984] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[11985]}, 88) = 11985
[pid 11984] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11984] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11984] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 11985 attached
 <unfinished ...>
[pid 11985] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11984] <... futex resumed>)        = 0
[pid 11984] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11984] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11985] <... futex resumed>)        = 1
[pid 11985] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11985] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11984] <... futex resumed>)        = 0
[pid 11984] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11984] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11985] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11984] <... futex resumed>)        = 0
[pid 11984] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11984] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11985] <... futex resumed>)        = 1
[pid 11985] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11985] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11984] <... futex resumed>)        = 0
[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=0x55558842d690) = 11986
./strace-static-x86_64: Process 11986 attached
[pid 11986] set_robust_list(0x55558842d6a0, 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", 4executing program
)         = 4
[pid 11986] close(3)                    = 0
[pid 11986] write(1, "executing program\n", 18) = 18
[pid 11986] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11986] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11986] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11987 attached
 => {parent_tid=[11987]}, 88) = 11987
[pid 11986] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11986] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11986] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11987] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11987] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11986] <... futex resumed>)        = 0
[pid 11986] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11986] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11987] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11987] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11986] <... futex resumed>)        = 0
[pid 11986] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11986] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11986] <... futex resumed>)        = 0
[pid 11986] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11986] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11987] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11987] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11986] <... futex resumed>)        = 0
[pid 11986] exit_group(0)               = ?
[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=0x55558842d690) = 11988
./strace-static-x86_64: Process 11988 attached
[pid 11988] set_robust_list(0x55558842d6a0, 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(3executing program
)                    = 0
[pid 11988] write(1, "executing program\n", 18) = 18
[pid 11988] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11988] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11988] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11989 attached
 => {parent_tid=[11989]}, 88) = 11989
[pid 11988] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11988] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11988] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11989] set_robust_list(0x7fee38e679a0, 24) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11988] <... futex resumed>)        = 0
[pid 11988] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11988] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11988] <... futex resumed>)        = 0
[pid 11988] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11988] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11988] <... futex resumed>)        = 0
[pid 11988] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11988] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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, child_tidptr=0x55558842d690) = 11990
./strace-static-x86_64: Process 11990 attached
[pid 11990] set_robust_list(0x55558842d6a0, 24) = 0
[pid 11990] prctl(PR_SET_PDEATHSIG, SIGKILL) = 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(3)                    = 0
[pid 11990] write(1, "executing program\n", 18executing program
) = 18
[pid 11990] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11990] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11990] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11991 attached
 <unfinished ...>
[pid 11991] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11991] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11991] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11990] <... clone3 resumed> => {parent_tid=[11991]}, 88) = 11991
[pid 11990] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11990] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11991] <... futex resumed>)        = 0
[pid 11991] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11991] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11990] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11990] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11991] <... futex resumed>)        = 0
[pid 11991] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11991] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11991] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11990] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11990] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11991] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11991] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11990] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11990] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11991] <... futex resumed>)        = 0
[pid 11991] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 11991] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11991] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11990] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11990] exit_group(0)               = ?
[pid 11991] <... futex resumed>)        = ?
[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=0x55558842d690) = 11992
./strace-static-x86_64: Process 11992 attached
[pid 11992] set_robust_list(0x55558842d6a0, 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
[pid 11992] write(1, "executing program\n", 18executing program
) = 18
[pid 11992] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11992] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11992] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11993 attached
 => {parent_tid=[11993]}, 88) = 11993
[pid 11993] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11993] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11993] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11992] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11992] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11993] <... futex resumed>)        = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11993] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11992] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11992] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11993] <... futex resumed>)        = 0
[pid 11993] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11993] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11993] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11992] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11992] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11993] <... futex resumed>)        = 0
[pid 11993] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 11993] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11993] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11992] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11992] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11993] <... futex resumed>)        = 0
[pid 11993] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11992] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11993] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11993] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11992] <... futex resumed>)        = 0
[pid 11992] exit_group(0)               = ?
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 11994
./strace-static-x86_64: Process 11994 attached
[pid 11994] set_robust_list(0x55558842d6a0, 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
[pid 11994] write(1, "executing program\n", 18executing program
) = 18
[pid 11994] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11994] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11994] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11995 attached
 => {parent_tid=[11995]}, 88) = 11995
[pid 11995] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11995] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11995] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11994] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11994] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11995] <... futex resumed>)        = 0
[pid 11994] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11995] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11994] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11994] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11995] <... futex resumed>)        = 0
[pid 11995] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11995] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11995] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11994] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11994] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11995] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11995] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11994] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 11994] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11995] <... futex resumed>)        = 0
[pid 11995] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 11994] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11995] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 11995] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11994] <... futex resumed>)        = 0
[pid 11994] exit_group(0)               = ?
[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=0x55558842d690) = 11996
./strace-static-x86_64: Process 11996 attached
[pid 11996] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11996] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11996] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11997 attached
 => {parent_tid=[11997]}, 88) = 11997
[pid 11997] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 11997] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11997] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11996] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 11996] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11997] <... futex resumed>)        = 0
[pid 11996] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11997] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11996] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11996] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11997] <... futex resumed>)        = 0
[pid 11997] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 11996] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11997] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 11997] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 11996] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11997] <... futex resumed>)        = 0
[pid 11997] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11996] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11997] <... futex resumed>)        = 0
[pid 11997] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 11996] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11997] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 11997] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11997] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11996] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11996] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11997] <... futex resumed>)        = 0
[pid 11996] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11997] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11996] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 11996] exit_group(0)               = ?
[pid 11997] <... futex resumed>)        = ?
[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=0x55558842d690) = 11998
./strace-static-x86_64: Process 11998 attached
[pid 11998] set_robust_list(0x55558842d6a0, 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(3executing program
)                    = 0
[pid 11998] write(1, "executing program\n", 18) = 18
[pid 11998] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11998] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 11998] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 11999 attached
 => {parent_tid=[11999]}, 88) = 11999
[pid 11999] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303e8, 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(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11998] <... futex resumed>)        = 0
[pid 11998] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11998] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 11999] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 11999] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11998] <... futex resumed>)        = 0
[pid 11998] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11998] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11998] <... futex resumed>)        = 0
[pid 11998] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 11998] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 11998] <... futex resumed>)        = 0
[pid 11999] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 11998] exit_group(0)               = ?
[pid 11999] <... futex resumed>)        = ?
[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, child_tidptr=0x55558842d690) = 12000
./strace-static-x86_64: Process 12000 attached
[pid 12000] set_robust_list(0x55558842d6a0, 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
[pid 12000] write(1, "executing program\n", 18executing program
) = 18
[pid 12000] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12000] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12000] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12001 attached
 => {parent_tid=[12001]}, 88) = 12001
[pid 12001] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12001] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12001] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12000] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12000] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12001] <... futex resumed>)        = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12001] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12000] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12000] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12001] <... futex resumed>)        = 0
[pid 12001] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12001] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12001] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12000] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12000] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12001] <... futex resumed>)        = 0
[pid 12001] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12001] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12001] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12000] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12000] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12001] <... futex resumed>)        = 0
[pid 12001] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12001] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12001] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12000] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[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=0x55558842d690) = 12002
./strace-static-x86_64: Process 12002 attached
[pid 12002] set_robust_list(0x55558842d6a0, 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(3executing program
)                    = 0
[pid 12002] write(1, "executing program\n", 18) = 18
[pid 12002] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12002] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12002] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12003 attached
 => {parent_tid=[12003]}, 88) = 12003
[pid 12002] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12002] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12002] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12003] set_robust_list(0x7fee38e679a0, 24) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12002] <... futex resumed>)        = 0
[pid 12003] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12002] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12003] <... futex resumed>)        = 0
[pid 12003] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12003] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12003] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12002] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12002] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12002] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12003] <... futex resumed>)        = 0
[pid 12003] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12003] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12002] <... futex resumed>)        = 0
[pid 12002] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12002] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12003] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12003] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12002] <... futex resumed>)        = 0
[pid 12002] exit_group(0)               = ?
[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=0x55558842d690) = 12004
./strace-static-x86_64: Process 12004 attached
[pid 12004] set_robust_list(0x55558842d6a0, 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
[pid 12004] write(1, "executing program\n", 18executing program
) = 18
[pid 12004] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12004] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12004] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12005]}, 88) = 12005
[pid 12004] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12004] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12004] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12005 attached
 <unfinished ...>
[pid 12005] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12004] <... futex resumed>)        = 0
[pid 12004] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12004] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12005] <... futex resumed>)        = 1
[pid 12005] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12005] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12004] <... futex resumed>)        = 0
[pid 12004] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12004] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12005] <... futex resumed>)        = 1
[pid 12005] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12005] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12004] <... futex resumed>)        = 0
[pid 12004] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12004] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12005] <... futex resumed>)        = 1
[pid 12005] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12005] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12004] <... futex resumed>)        = 0
[pid 12004] exit_group(0)               = ?
[pid 12005] <... futex 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=0x55558842d690) = 12006
./strace-static-x86_64: Process 12006 attached
[pid 12006] set_robust_list(0x55558842d6a0, 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", 4executing program
)         = 4
[pid 12006] close(3)                    = 0
[pid 12006] write(1, "executing program\n", 18) = 18
[pid 12006] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12006] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12006] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12007]}, 88) = 12007
[pid 12006] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12006] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12006] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12007 attached
 <unfinished ...>
[pid 12007] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12006] <... futex resumed>)        = 0
[pid 12007] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12006] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12007] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12006] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12007] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12006] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12007] <... futex resumed>)        = 0
[pid 12006] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12007] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12006] <... futex resumed>)        = 0
[pid 12007] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12006] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12007] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12006] <... futex resumed>)        = 0
[pid 12006] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12006] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12007] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12007] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12006] <... futex resumed>)        = 0
[pid 12007] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12006] exit_group(0)               = ?
[pid 12007] <... futex 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=0x55558842d690) = 12008
./strace-static-x86_64: Process 12008 attached
[pid 12008] set_robust_list(0x55558842d6a0, 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
executing program
[pid 12008] write(1, "executing program\n", 18) = 18
[pid 12008] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12008] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12008] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12009 attached
 => {parent_tid=[12009]}, 88) = 12009
[pid 12008] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12008] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12008] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12009] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12008] <... futex resumed>)        = 0
[pid 12008] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12008] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12009] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12009] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12008] <... futex resumed>)        = 0
[pid 12008] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12008] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12008] <... futex resumed>)        = 0
[pid 12008] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12008] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12009] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12009] futex(0x7fee38f303ec, 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=0x55558842d690) = 12010
./strace-static-x86_64: Process 12010 attached
[pid 12010] set_robust_list(0x55558842d6a0, 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
[pid 12010] write(1, "executing program\n", 18executing program
) = 18
[pid 12010] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12010] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12010] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12011 attached
 => {parent_tid=[12011]}, 88) = 12011
[pid 12011] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12011] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12011] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12010] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12010] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12011] <... futex resumed>)        = 0
[pid 12010] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12011] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12010] <... futex resumed>)        = 0
[pid 12010] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12011] <... futex resumed>)        = 0
[pid 12011] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12010] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12011] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12011] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12011] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12010] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12010] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12011] <... futex resumed>)        = 0
[pid 12011] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12010] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12011] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12011] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12011] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12010] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12010] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12011] <... futex resumed>)        = 0
[pid 12010] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12011] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12011] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12010] <... futex resumed>)        = 0
[pid 12011] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12010] exit_group(0)               = ?
[pid 12011] <... futex resumed>)        = ?
[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=0x55558842d690) = 12012
[pid 12012] set_robust_list(0x55558842d6a0, 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(3)                    = 0
[pid 12012] write(1, "executing program\n", 18executing program
) = 18
[pid 12012] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12012] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12012] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12013 attached
 => {parent_tid=[12013]}, 88) = 12013
[pid 12013] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12012] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12013] <... set_robust_list resumed>) = 0
[pid 12012] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12013] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12012] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12013] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12012] <... futex resumed>)        = 0
[pid 12012] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12012] <... futex resumed>)        = 0
[pid 12012] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12012] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12012] <... futex resumed>)        = 0
[pid 12012] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12012] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12012] <... futex resumed>)        = 0
[pid 12012] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12012] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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, child_tidptr=0x55558842d690) = 12014
./strace-static-x86_64: Process 12014 attached
[pid 12014] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12014] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12014] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12015 attached
 => {parent_tid=[12015]}, 88) = 12015
[pid 12015] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12015] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12015] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12014] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12014] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12015] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12014] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12014] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12015] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12014] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12014] futex(0x7fee38f303e8, 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) = -1 EBADF (Bad file descriptor)
[pid 12015] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12015] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12014] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12014] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12015] <... futex resumed>)        = 0
[pid 12014] <... futex resumed>)        = 1
[pid 12014] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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=0x55558842d690) = 12016
./strace-static-x86_64: Process 12016 attached
[pid 12016] set_robust_list(0x55558842d6a0, 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
[pid 12016] write(1, "executing program\n", 18executing program
) = 18
[pid 12016] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12016] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12016] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12017 attached
 <unfinished ...>
[pid 12017] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12016] <... clone3 resumed> => {parent_tid=[12017]}, 88) = 12017
[pid 12017] <... set_robust_list resumed>) = 0
[pid 12016] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12017] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12016] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12017] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12016] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12017] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12016] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12016] <... futex resumed>)        = 0
[pid 12017] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12016] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12017] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12016] <... futex resumed>)        = 0
[pid 12017] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12016] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12017] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12017] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12016] <... futex resumed>)        = 0
[pid 12016] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12016] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12016] <... futex resumed>)        = 0
[pid 12016] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12016] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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=0x55558842d690) = 12018
./strace-static-x86_64: Process 12018 attached
[pid 12018] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12018] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12018] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12019 attached
 => {parent_tid=[12019]}, 88) = 12019
[pid 12019] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12018] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12019] <... set_robust_list resumed>) = 0
[pid 12018] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12019] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12018] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12019] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12018] <... 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(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12018] <... futex resumed>)        = 0
[pid 12018] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12018] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12019] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12019] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12018] <... futex resumed>)        = 0
[pid 12018] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12018] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12018] <... futex resumed>)        = 0
[pid 12018] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12018] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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, child_tidptr=0x55558842d690) = 12020
./strace-static-x86_64: Process 12020 attached
[pid 12020] set_robust_list(0x55558842d6a0, 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
[pid 12020] write(1, "executing program\n", 18executing program
) = 18
[pid 12020] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12020] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12020] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12021 attached
 => {parent_tid=[12021]}, 88) = 12021
[pid 12021] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12021] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12020] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12021] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12021] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12020] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12020] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12021] <... futex resumed>)        = 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 12020] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12021] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12021] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12020] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12020] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12021] <... futex resumed>)        = 0
[pid 12021] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12021] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12021] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12020] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12020] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12021] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12021] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12020] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12020] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12021] <... futex resumed>)        = 0
[pid 12021] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12020] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12021] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12021] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12020] <... futex resumed>)        = 0
[pid 12020] exit_group(0)               = ?
[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=0x55558842d690) = 12022
./strace-static-x86_64: Process 12022 attached
[pid 12022] set_robust_list(0x55558842d6a0, 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
executing program
[pid 12022] write(1, "executing program\n", 18) = 18
[pid 12022] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12022] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12022] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12023]}, 88) = 12023
[pid 12022] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12022] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12022] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12023 attached
 <unfinished ...>
[pid 12023] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12023] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12022] <... futex resumed>)        = 0
[pid 12022] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12022] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12023] <... futex resumed>)        = 1
[pid 12023] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12023] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12022] <... futex resumed>)        = 0
[pid 12022] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12022] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12023] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12022] <... futex resumed>)        = 0
[pid 12022] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12022] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12023] <... futex resumed>)        = 1
[pid 12023] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12023] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12022] <... futex resumed>)        = 0
[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=0x55558842d690) = 12024
./strace-static-x86_64: Process 12024 attached
[pid 12024] set_robust_list(0x55558842d6a0, 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
[pid 12024] write(1, "executing program\n", 18executing program
) = 18
[pid 12024] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12024] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12024] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12025]}, 88) = 12025
[pid 12024] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12024] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12024] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12025 attached
 <unfinished ...>
[pid 12025] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12024] <... futex resumed>)        = 0
[pid 12024] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12024] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12025] <... futex resumed>)        = 1
[pid 12025] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12025] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12024] <... futex resumed>)        = 0
[pid 12024] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12024] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12025] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12024] <... futex resumed>)        = 0
[pid 12024] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12024] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12025] <... futex resumed>)        = 1
[pid 12025] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12025] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12024] <... futex resumed>)        = 0
[pid 12024] exit_group(0)               = ?
[pid 12025] <... futex resumed>)        = ?
[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./strace-static-x86_64: Process 12026 attached
, child_tidptr=0x55558842d690) = 12026
[pid 12026] set_robust_list(0x55558842d6a0, 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", 4)         = 4
[pid 12026] close(3)                    = 0
[pid 12026] write(1, "executing program\n", 18executing program
) = 18
[pid 12026] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12026] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12026] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12027]}, 88) = 12027
[pid 12026] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12026] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12026] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12027 attached
 <unfinished ...>
[pid 12027] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12026] <... futex resumed>)        = 0
[pid 12026] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12026] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12026] <... futex resumed>)        = 0
[pid 12026] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12026] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12027] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12026] <... futex resumed>)        = 0
[pid 12026] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12026] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12027] <... futex resumed>)        = 1
[pid 12027] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12027] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12026] <... futex resumed>)        = 0
[pid 12026] exit_group(0)               = ?
[pid 12027] <... futex 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=0x55558842d690) = 12028
./strace-static-x86_64: Process 12028 attached
[pid 12028] set_robust_list(0x55558842d6a0, 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", 4executing program
)         = 4
[pid 12028] close(3)                    = 0
[pid 12028] write(1, "executing program\n", 18) = 18
[pid 12028] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12028] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12028] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12029 attached
 => {parent_tid=[12029]}, 88) = 12029
[pid 12028] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12028] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12028] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12029] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12028] <... futex resumed>)        = 0
[pid 12028] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12028] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12028] <... futex resumed>)        = 0
[pid 12028] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12028] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12028] <... futex resumed>)        = 0
[pid 12028] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12028] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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=0x55558842d690) = 12030
./strace-static-x86_64: Process 12030 attached
[pid 12030] set_robust_list(0x55558842d6a0, 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
[pid 12030] write(1, "executing program\n", 18executing program
) = 18
[pid 12030] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12030] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12030] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12031]}, 88) = 12031
[pid 12030] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12030] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12030] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12031 attached
 <unfinished ...>
[pid 12031] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12030] <... futex resumed>)        = 0
[pid 12030] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12030] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12030] <... futex resumed>)        = 0
[pid 12030] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12030] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12030] <... futex resumed>)        = 0
[pid 12030] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12030] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12030] <... futex resumed>)        = 0
[pid 12030] exit_group(0 <unfinished ...>
[pid 12031] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12030] <... exit_group resumed>)   = ?
[pid 12031] <... futex resumed>)        = ? <unavailable>
[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, child_tidptr=0x55558842d690) = 12032
./strace-static-x86_64: Process 12032 attached
[pid 12032] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12032] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12032] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12033 attached
 <unfinished ...>
[pid 12033] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12033] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12033] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12032] <... clone3 resumed> => {parent_tid=[12033]}, 88) = 12033
[pid 12032] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12032] futex(0x7fee38f303e8, 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 12033] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12033] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12032] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12032] futex(0x7fee38f303e8, 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 12033] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12033] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12032] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12032] futex(0x7fee38f303e8, 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 12033] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12033] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12032] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12032] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12033] <... futex resumed>)        = 0
[pid 12033] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12032] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12033] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12033] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12033] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12032] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[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./strace-static-x86_64: Process 12034 attached
, child_tidptr=0x55558842d690) = 12034
[pid 12034] set_robust_list(0x55558842d6a0, 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", 18executing program
) = 18
[pid 12034] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12034] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12034] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12035 attached
 => {parent_tid=[12035]}, 88) = 12035
[pid 12035] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12035] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12035] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12034] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12034] futex(0x7fee38f303e8, 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, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12035] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12034] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12034] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12035] <... futex resumed>)        = 0
[pid 12035] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12035] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12035] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12034] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12034] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12035] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12035] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12034] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12034] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12035] <... futex resumed>)        = 0
[pid 12035] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12034] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12035] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12035] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12035] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12034] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12034] exit_group(0)               = ?
[pid 12035] <... futex resumed>)        = ?
[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, child_tidptr=0x55558842d690) = 12036
./strace-static-x86_64: Process 12036 attached
[pid 12036] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12036] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12036] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12037 attached
 => {parent_tid=[12037]}, 88) = 12037
[pid 12036] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12036] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12036] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12037] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12036] <... futex resumed>)        = 0
[pid 12036] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12036] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12036] <... futex resumed>)        = 0
[pid 12036] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12036] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12036] <... futex resumed>)        = 0
[pid 12036] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12036] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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=0x55558842d690) = 12038
./strace-static-x86_64: Process 12038 attached
[pid 12038] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12038] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12038] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12039 attached
 <unfinished ...>
[pid 12039] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12039] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12039] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12038] <... clone3 resumed> => {parent_tid=[12039]}, 88) = 12039
[pid 12038] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12038] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12039] <... futex resumed>)        = 0
[pid 12039] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12039] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12038] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12038] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12039] <... futex resumed>)        = 0
[pid 12039] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12038] <... futex resumed>)        = 1
[pid 12039] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12039] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12038] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12038] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12039] <... futex resumed>)        = 0
[pid 12039] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12039] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12039] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12038] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12038] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12039] <... futex resumed>)        = 0
[pid 12038] <... futex resumed>)        = 1
[pid 12038] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12039] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12039] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12039] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12038] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12038] exit_group(0)               = ?
[pid 12039] <... futex 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=0x55558842d690) = 12040
./strace-static-x86_64: Process 12040 attached
[pid 12040] set_robust_list(0x55558842d6a0, 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(3)                    = 0
[pid 12040] write(1, "executing program\n", 18executing program
) = 18
[pid 12040] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12040] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12040] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12041 attached
 <unfinished ...>
[pid 12041] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12041] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12041] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12040] <... clone3 resumed> => {parent_tid=[12041]}, 88) = 12041
[pid 12040] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12040] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12041] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12041] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12040] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12040] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12041] <... futex resumed>)        = 0
[pid 12040] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12041] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12041] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12040] <... futex resumed>)        = 0
[pid 12040] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12040] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12040] <... futex resumed>)        = 0
[pid 12040] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12040] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12041] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12041] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12040] <... 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=0x55558842d690) = 12042
./strace-static-x86_64: Process 12042 attached
[pid 12042] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12042] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12042] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12043 attached
 => {parent_tid=[12043]}, 88) = 12043
[pid 12043] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12043] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12043] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12042] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12042] futex(0x7fee38f303e8, 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 <unfinished ...>
[pid 12042] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12043] <... 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 12043] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12042] <... futex resumed>)        = 0
[pid 12042] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12042] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12043] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12043] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12042] <... futex resumed>)        = 0
[pid 12042] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12042] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12042] <... futex resumed>)        = 0
[pid 12042] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12042] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12043] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12043] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12042] <... futex resumed>)        = 0
[pid 12042] exit_group(0)               = ?
[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=0x55558842d690) = 12044
./strace-static-x86_64: Process 12044 attached
[pid 12044] set_robust_list(0x55558842d6a0, 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(3)                    = 0
[pid 12044] write(1, "executing program\n", 18executing program
) = 18
[pid 12044] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12044] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12044] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12045 attached
 <unfinished ...>
[pid 12045] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12045] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12045] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12044] <... clone3 resumed> => {parent_tid=[12045]}, 88) = 12045
[pid 12044] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12044] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12045] <... futex resumed>)        = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12045] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12044] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12044] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12045] <... futex resumed>)        = 0
[pid 12045] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12045] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12045] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12044] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12044] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12045] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12045] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12044] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12044] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12045] <... futex resumed>)        = 0
[pid 12045] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12045] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12045] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12044] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12044] exit_group(0)               = ?
[pid 12045] <... futex resumed>)        = ?
[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, child_tidptr=0x55558842d690) = 12046
./strace-static-x86_64: Process 12046 attached
[pid 12046] set_robust_list(0x55558842d6a0, 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", 4)         = 4
[pid 12046] close(3)                    = 0
executing program
[pid 12046] write(1, "executing program\n", 18) = 18
[pid 12046] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12046] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12046] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12047]}, 88) = 12047
[pid 12046] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12046] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12046] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12047 attached
 <unfinished ...>
[pid 12047] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12046] <... futex resumed>)        = 0
[pid 12046] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12046] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12047] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12047] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12046] <... futex resumed>)        = 0
[pid 12046] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12046] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12046] <... futex resumed>)        = 0
[pid 12046] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12046] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12047] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12047] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12046] <... futex resumed>)        = 0
[pid 12046] exit_group(0)               = ?
[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=0x55558842d690) = 12048
./strace-static-x86_64: Process 12048 attached
[pid 12048] set_robust_list(0x55558842d6a0, 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
executing program
[pid 12048] write(1, "executing program\n", 18) = 18
[pid 12048] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12048] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12048] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12049 attached
 => {parent_tid=[12049]}, 88) = 12049
[pid 12048] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12048] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12048] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12049] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12049] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12049] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12049] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12048] <... futex resumed>)        = 0
[pid 12048] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12049] <... futex resumed>)        = 0
[pid 12048] <... futex resumed>)        = 1
[pid 12049] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12048] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12049] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12049] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12048] <... futex resumed>)        = 0
[pid 12049] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12048] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12049] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[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(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12049] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12049] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12049] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12048] <... futex resumed>)        = 0
[pid 12049] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12048] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12049] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12048] <... futex resumed>)        = 0
[pid 12049] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12048] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12049] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12049] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12048] <... futex resumed>)        = 0
[pid 12048] exit_group(0)               = ?
[pid 12049] <... futex resumed>)        = ?
[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, child_tidptr=0x55558842d690) = 12050
./strace-static-x86_64: Process 12050 attached
[pid 12050] set_robust_list(0x55558842d6a0, 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
[pid 12050] write(1, "executing program\n", 18executing program
) = 18
[pid 12050] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12050] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12050] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12051 attached
 => {parent_tid=[12051]}, 88) = 12051
[pid 12051] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12051] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12051] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12050] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12050] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12051] <... futex resumed>)        = 0
[pid 12051] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12050] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12051] <... 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 12051] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12051] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12050] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12050] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12051] <... futex resumed>)        = 0
[pid 12051] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12050] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12051] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12051] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12051] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12050] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12050] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12051] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12051] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12050] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12050] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12051] <... futex resumed>)        = 0
[pid 12051] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12050] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12051] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12051] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12051] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12050] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[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./strace-static-x86_64: Process 12052 attached
, child_tidptr=0x55558842d690) = 12052
[pid 12052] set_robust_list(0x55558842d6a0, 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(3)                    = 0
[pid 12052] write(1, "executing program\n", 18executing program
) = 18
[pid 12052] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12052] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12052] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12053 attached
 => {parent_tid=[12053]}, 88) = 12053
[pid 12053] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12053] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12053] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12052] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12052] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12053] <... futex resumed>)        = 0
[pid 12053] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12052] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12053] <... 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 12053] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12053] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12052] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12052] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12053] <... futex resumed>)        = 0
[pid 12053] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12053] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12053] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12052] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12052] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12053] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12053] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12052] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12052] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12053] <... futex resumed>)        = 0
[pid 12053] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12053] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12053] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12052] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[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, child_tidptr=0x55558842d690) = 12054
./strace-static-x86_64: Process 12054 attached
[pid 12054] set_robust_list(0x55558842d6a0, 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
[pid 12054] write(1, "executing program\n", 18executing program
) = 18
[pid 12054] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12054] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12054] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12055 attached
 <unfinished ...>
[pid 12055] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12055] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12055] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12054] <... clone3 resumed> => {parent_tid=[12055]}, 88) = 12055
[pid 12054] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12054] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12055] <... futex resumed>)        = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12055] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12054] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12054] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12055] <... futex resumed>)        = 0
[pid 12055] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12055] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12055] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12054] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12054] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12055] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12055] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12054] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12054] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12055] <... futex resumed>)        = 0
[pid 12055] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12055] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12055] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12054] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12054] exit_group(0)               = ?
[pid 12055] <... futex resumed>)        = ?
[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, child_tidptr=0x55558842d690) = 12056
./strace-static-x86_64: Process 12056 attached
[pid 12056] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12056] prctl(PR_SET_PDEATHSIG, SIGKILL) = 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
[pid 12056] write(1, "executing program\n", 18executing program
) = 18
[pid 12056] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12056] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12056] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12057 attached
 => {parent_tid=[12057]}, 88) = 12057
[pid 12056] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12056] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12056] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12057] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12056] <... futex resumed>)        = 0
[pid 12056] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12057] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12056] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12057] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12057] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12056] <... futex resumed>)        = 0
[pid 12056] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12056] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12056] <... futex resumed>)        = 0
[pid 12056] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12056] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12057] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12057] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12056] <... futex resumed>)        = 0
[pid 12056] exit_group(0)               = ?
[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, child_tidptr=0x55558842d690) = 12058
./strace-static-x86_64: Process 12058 attached
[pid 12058] set_robust_list(0x55558842d6a0, 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
[pid 12058] write(1, "executing program\n", 18executing program
) = 18
[pid 12058] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12058] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12058] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12059 attached
 => {parent_tid=[12059]}, 88) = 12059
[pid 12059] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12058] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12059] <... set_robust_list resumed>) = 0
[pid 12058] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12059] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12058] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12059] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12058] <... futex resumed>)        = 0
[pid 12058] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12058] <... futex resumed>)        = 0
[pid 12059] <... futex resumed>)        = 1
[pid 12058] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12059] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12058] <... futex resumed>)        = 0
[pid 12058] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12059] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12059] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12058] <... futex resumed>)        = 0
[pid 12059] <... futex resumed>)        = 1
[pid 12058] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12059] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12058] <... futex resumed>)        = 0
[pid 12058] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12059] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12059] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12058] <... futex resumed>)        = 0
[pid 12058] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12058] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12058] <... futex resumed>)        = 0
[pid 12058] exit_group(0)               = ?
[pid 12059] <... futex resumed>)        = ? <unavailable>
[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=0x55558842d690) = 12060
./strace-static-x86_64: Process 12060 attached
[pid 12060] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12060] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12060] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12061 attached
 => {parent_tid=[12061]}, 88) = 12061
[pid 12061] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12061] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12061] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12060] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12060] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12061] <... futex resumed>)        = 0
[pid 12060] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12061] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12060] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12060] futex(0x7fee38f303e8, 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 12061] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12061] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12060] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12060] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12061] <... futex resumed>)        = 0
[pid 12061] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12060] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12061] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12061] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12060] <... futex resumed>)        = 0
[pid 12060] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12060] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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=0x55558842d690) = 12062
./strace-static-x86_64: Process 12062 attached
[pid 12062] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12062] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12062] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12063]}, 88) = 12063
./strace-static-x86_64: Process 12063 attached
[pid 12062] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12062] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12062] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12063] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12063] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12063] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12062] <... futex resumed>)        = 0
[pid 12062] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12062] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12062] <... futex resumed>)        = 0
[pid 12062] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12062] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12062] <... futex resumed>)        = 0
[pid 12062] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12062] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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=0x55558842d690) = 12064
./strace-static-x86_64: Process 12064 attached
[pid 12064] set_robust_list(0x55558842d6a0, 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(3executing program
)                    = 0
[pid 12064] write(1, "executing program\n", 18) = 18
[pid 12064] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12064] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12064] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12065]}, 88) = 12065
./strace-static-x86_64: Process 12065 attached
[pid 12064] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12064] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12064] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12065] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12064] <... futex resumed>)        = 0
[pid 12064] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12064] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12065] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12065] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12064] <... futex resumed>)        = 0
[pid 12064] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12064] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12064] <... futex resumed>)        = 0
[pid 12064] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12064] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12065] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12065] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12064] <... futex resumed>)        = 0
[pid 12064] exit_group(0)               = ?
[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, child_tidptr=0x55558842d690) = 12066
./strace-static-x86_64: Process 12066 attached
[pid 12066] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12066] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12066] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12067]}, 88) = 12067
[pid 12066] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12066] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12066] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12067 attached
 <unfinished ...>
[pid 12067] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12067] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12066] <... futex resumed>)        = 0
[pid 12066] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12066] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12067] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12067] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12066] <... futex resumed>)        = 0
[pid 12066] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12066] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12066] <... futex resumed>)        = 0
[pid 12066] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12066] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12067] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12067] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12066] <... futex resumed>)        = 0
[pid 12066] exit_group(0)               = ?
[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, child_tidptr=0x55558842d690) = 12068
./strace-static-x86_64: Process 12068 attached
[pid 12068] set_robust_list(0x55558842d6a0, 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", 18) = 18
[pid 12068] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000executing program
) = 0
[pid 12068] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12068] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12069 attached
 => {parent_tid=[12069]}, 88) = 12069
[pid 12068] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12068] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12068] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12069] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12069] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12068] <... futex resumed>)        = 0
[pid 12069] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12068] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12069] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12068] <... futex resumed>)        = 0
[pid 12069] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12068] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12069] <... futex resumed>)        = 0
[pid 12068] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12069] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12068] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12069] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12068] <... futex resumed>)        = 0
[pid 12069] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12068] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12069] <... futex resumed>)        = 0
[pid 12068] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12069] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12068] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12069] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12068] <... futex resumed>)        = 0
[pid 12069] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12068] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12069] <... futex resumed>)        = 0
[pid 12068] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12069] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12068] exit_group(0 <unfinished ...>
[pid 12069] <... futex resumed>)        = ?
[pid 12068] <... exit_group 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, child_tidptr=0x55558842d690) = 12070
./strace-static-x86_64: Process 12070 attached
[pid 12070] set_robust_list(0x55558842d6a0, 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
executing program
[pid 12070] write(1, "executing program\n", 18) = 18
[pid 12070] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12070] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12070] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12071]}, 88) = 12071
[pid 12070] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12070] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12070] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12071 attached
 <unfinished ...>
[pid 12071] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12071] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12070] <... futex resumed>)        = 0
[pid 12070] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12070] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12070] <... futex resumed>)        = 0
[pid 12070] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12070] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12070] <... futex resumed>)        = 0
[pid 12070] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12070] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12070] <... futex resumed>)        = 0
[pid 12070] exit_group(0)               = ?
[pid 12071] <... futex resumed>)        = ?
[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, child_tidptr=0x55558842d690) = 12072
./strace-static-x86_64: Process 12072 attached
[pid 12072] set_robust_list(0x55558842d6a0, 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(3executing program
)                    = 0
[pid 12072] write(1, "executing program\n", 18) = 18
[pid 12072] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12072] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12072] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12073]}, 88) = 12073
[pid 12072] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12072] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12072] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12073 attached
 <unfinished ...>
[pid 12073] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12072] <... futex resumed>)        = 0
[pid 12072] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12072] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12072] <... futex resumed>)        = 0
[pid 12072] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12072] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12072] <... futex resumed>)        = 0
[pid 12072] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12072] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12072] <... futex resumed>)        = 0
[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, child_tidptr=0x55558842d690) = 12074
./strace-static-x86_64: Process 12074 attached
[pid 12074] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12074] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12074] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12076]}, 88) = 12076
[pid 12074] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12074] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12074] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12076 attached
 <unfinished ...>
[pid 12076] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12076] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12076] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12076] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12074] <... futex resumed>)        = 0
[pid 12074] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12074] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12076] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12076] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12074] <... futex resumed>)        = 0
[pid 12074] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12074] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12076] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12076] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12074] <... futex resumed>)        = 0
[pid 12074] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12074] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12076] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12076] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12074] <... futex resumed>)        = 0
[pid 12076] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12074] exit_group(0)               = ?
[pid 12076] <... futex resumed>)        = ?
[pid 12076] +++ 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=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12077
./strace-static-x86_64: Process 12077 attached
[pid 12077] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12077] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12077] setpgid(0, 0)               = 0
[pid 12077] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12077] write(3, "1000", 4)         = 4
[pid 12077] close(3)                    = 0
[pid 12077] write(1, "executing program\n", 18executing program
) = 18
[pid 12077] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12077] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12077] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12077] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12077] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12077] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12077] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12078 attached
 <unfinished ...>
[pid 12078] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12078] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12078] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12077] <... clone3 resumed> => {parent_tid=[12078]}, 88) = 12078
[pid 12077] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12077] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12078] <... futex resumed>)        = 0
[pid 12078] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12078] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12078] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12077] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12077] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12078] <... futex resumed>)        = 0
[pid 12078] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12078] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12078] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12077] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12077] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12078] <... futex resumed>)        = 0
[pid 12078] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12078] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12078] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12077] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12077] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12078] <... futex resumed>)        = 0
[pid 12077] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12078] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12078] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12078] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12077] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12077] exit_group(0)               = ?
[pid 12078] <... futex resumed>)        = ?
[pid 12078] +++ exited with 0 +++
[pid 12077] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12077, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12079
./strace-static-x86_64: Process 12079 attached
[pid 12079] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12079] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12079] setpgid(0, 0)               = 0
[pid 12079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12079] write(3, "1000", 4)         = 4
[pid 12079] close(3)                    = 0
[pid 12079] write(1, "executing program\n", 18executing program
) = 18
[pid 12079] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12079] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12079] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12079] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12079] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12079] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12079] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12080 attached
 <unfinished ...>
[pid 12080] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12079] <... clone3 resumed> => {parent_tid=[12080]}, 88) = 12080
[pid 12080] <... set_robust_list resumed>) = 0
[pid 12080] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12080] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12079] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12079] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12080] <... futex resumed>)        = 0
[pid 12080] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12079] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12080] <... 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12079] <... futex resumed>)        = 0
[pid 12079] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12079] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12080] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12080] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12079] <... futex resumed>)        = 0
[pid 12079] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12079] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12080] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12080] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12079] <... futex resumed>)        = 0
[pid 12079] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12079] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12080] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12080] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12079] <... futex resumed>)        = 0
[pid 12079] exit_group(0)               = ?
[pid 12080] +++ exited with 0 +++
[pid 12079] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12079, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12081
./strace-static-x86_64: Process 12081 attached
[pid 12081] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12081] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12081] setpgid(0, 0)               = 0
[pid 12081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12081] write(3, "1000", 4)         = 4
[pid 12081] close(3executing program
)                    = 0
[pid 12081] write(1, "executing program\n", 18) = 18
[pid 12081] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12081] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12081] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12081] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12081] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12081] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12081] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12082]}, 88) = 12082
[pid 12081] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12081] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12081] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12082 attached
 <unfinished ...>
[pid 12082] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12082] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12082] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12082] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12081] <... futex resumed>)        = 0
[pid 12081] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12081] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12082] <... futex resumed>)        = 1
[pid 12082] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12082] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12081] <... futex resumed>)        = 0
[pid 12081] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12081] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12082] <... futex resumed>)        = 1
[pid 12082] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12082] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12081] <... futex resumed>)        = 0
[pid 12081] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12081] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12082] <... futex resumed>)        = 1
[pid 12082] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12082] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12081] <... futex resumed>)        = 0
[pid 12081] exit_group(0)               = ?
[pid 12082] <... futex resumed>)        = ?
[pid 12082] +++ exited with 0 +++
[pid 12081] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12081, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12083
./strace-static-x86_64: Process 12083 attached
[pid 12083] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12083] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12083] setpgid(0, 0)               = 0
[pid 12083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12083] write(3, "1000", 4)         = 4
executing program
[pid 12083] close(3)                    = 0
[pid 12083] write(1, "executing program\n", 18) = 18
[pid 12083] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12083] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12083] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12083] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12083] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12083] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12083] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12084]}, 88) = 12084
[pid 12083] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12083] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12083] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12084 attached
 <unfinished ...>
[pid 12084] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12084] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12084] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12084] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12083] <... futex resumed>)        = 0
[pid 12083] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12083] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12084] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12084] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12083] <... futex resumed>)        = 0
[pid 12083] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12083] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12084] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12084] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12083] <... futex resumed>)        = 0
[pid 12083] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12083] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12084] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12084] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12083] <... futex resumed>)        = 0
[pid 12083] exit_group(0)               = ?
[pid 12084] +++ exited with 0 +++
[pid 12083] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12083, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12085
./strace-static-x86_64: Process 12085 attached
[pid 12085] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12085] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12085] setpgid(0, 0)               = 0
[pid 12085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12085] write(3, "1000", 4)         = 4
[pid 12085] close(3)                    = 0
[pid 12085] write(1, "executing program\n", 18executing program
) = 18
[pid 12085] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12085] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12085] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12085] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12085] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12085] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12085] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12086 attached
 => {parent_tid=[12086]}, 88) = 12086
[pid 12086] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12085] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12086] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12085] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12086] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12085] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12086] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12085] <... futex resumed>)        = 0
[pid 12086] <... 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 12085] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12086] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12085] <... futex resumed>)        = 0
[pid 12085] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12086] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12085] <... futex resumed>)        = 0
[pid 12085] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12086] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12086] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12085] <... futex resumed>)        = 0
[pid 12085] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12085] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12086] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12086] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12085] <... futex resumed>)        = 0
[pid 12085] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12085] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12086] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12086] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12085] <... futex resumed>)        = 0
[pid 12086] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12085] exit_group(0)               = ?
[pid 12086] <... futex resumed>)        = ?
[pid 12086] +++ exited with 0 +++
[pid 12085] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12085, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12087
./strace-static-x86_64: Process 12087 attached
[pid 12087] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12087] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12087] setpgid(0, 0)               = 0
[pid 12087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12087] write(3, "1000", 4)         = 4
[pid 12087] close(3)                    = 0
[pid 12087] write(1, "executing program\n", 18executing program
) = 18
[pid 12087] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12087] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12087] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12087] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12087] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12087] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12087] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12088 attached
 => {parent_tid=[12088]}, 88) = 12088
[pid 12088] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12088] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12088] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12087] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12087] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12088] <... futex resumed>)        = 0
[pid 12088] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12088] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12088] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12087] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12087] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12088] <... futex resumed>)        = 0
[pid 12088] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12088] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12088] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12087] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12087] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12088] <... futex resumed>)        = 0
[pid 12088] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12088] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12088] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12087] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12087] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12088] <... futex resumed>)        = 0
[pid 12088] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12088] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12088] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12087] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12087] exit_group(0)               = ?
[pid 12088] <... futex resumed>)        = ?
[pid 12088] +++ exited with 0 +++
[pid 12087] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12087, si_uid=0, si_status=0, 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 12089 attached
, child_tidptr=0x55558842d690) = 12089
[pid 12089] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12089] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12089] setpgid(0, 0)               = 0
[pid 12089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12089] write(3, "1000", 4)         = 4
[pid 12089] close(3)                    = 0
[pid 12089] write(1, "executing program\n", 18executing program
) = 18
[pid 12089] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12089] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12089] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12089] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12089] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12089] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12089] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12090 attached
 <unfinished ...>
[pid 12090] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12090] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12090] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12089] <... clone3 resumed> => {parent_tid=[12090]}, 88) = 12090
[pid 12089] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12089] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12090] <... futex resumed>)        = 0
[pid 12090] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12090] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12090] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12089] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12089] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12090] <... futex resumed>)        = 0
[pid 12090] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12090] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12090] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12089] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12089] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12090] <... futex resumed>)        = 0
[pid 12090] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12090] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12090] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12089] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12089] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12090] <... futex resumed>)        = 0
[pid 12090] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12090] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12090] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12089] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12089] exit_group(0)               = ?
[pid 12090] <... futex resumed>)        = ?
[pid 12090] +++ exited with 0 +++
[pid 12089] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12089, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12091
./strace-static-x86_64: Process 12091 attached
[pid 12091] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12091] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12091] setpgid(0, 0)               = 0
[pid 12091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12091] write(3, "1000", 4)         = 4
[pid 12091] close(3)                    = 0
executing program
[pid 12091] write(1, "executing program\n", 18) = 18
[pid 12091] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12091] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12091] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12091] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12091] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12091] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12091] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12092]}, 88) = 12092
./strace-static-x86_64: Process 12092 attached
[pid 12091] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12091] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12091] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12092] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12092] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12092] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12092] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12091] <... futex resumed>)        = 0
[pid 12091] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12091] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12092] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12092] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12091] <... futex resumed>)        = 0
[pid 12091] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12091] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12092] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12092] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12091] <... futex resumed>)        = 0
[pid 12091] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12091] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12092] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12092] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12091] <... futex resumed>)        = 0
[pid 12091] exit_group(0)               = ?
[pid 12092] +++ exited with 0 +++
[pid 12091] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12091, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12093
./strace-static-x86_64: Process 12093 attached
[pid 12093] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12093] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12093] setpgid(0, 0)               = 0
[pid 12093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12093] write(3, "1000", 4)         = 4
[pid 12093] close(3)                    = 0
[pid 12093] write(1, "executing program\n", 18executing program
) = 18
[pid 12093] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12093] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12093] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12093] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12093] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12093] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12093] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12094 attached
 <unfinished ...>
[pid 12094] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12094] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12094] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12093] <... clone3 resumed> => {parent_tid=[12094]}, 88) = 12094
[pid 12093] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12093] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12094] <... futex resumed>)        = 0
[pid 12094] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12094] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12094] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12093] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12093] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12094] <... futex resumed>)        = 0
[pid 12094] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12094] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12094] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12093] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12093] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12094] <... futex resumed>)        = 0
[pid 12094] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12094] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12094] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12093] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12093] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12093] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12094] <... futex resumed>)        = 0
[pid 12094] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12094] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12094] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12093] <... futex resumed>)        = 0
[pid 12093] exit_group(0)               = ?
[pid 12094] <... futex resumed>)        = ?
[pid 12094] +++ exited with 0 +++
[pid 12093] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12093, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12095
./strace-static-x86_64: Process 12095 attached
[pid 12095] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12095] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12095] setpgid(0, 0)               = 0
[pid 12095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program
) = 3
[pid 12095] write(3, "1000", 4)         = 4
[pid 12095] close(3)                    = 0
[pid 12095] write(1, "executing program\n", 18) = 18
[pid 12095] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12095] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12095] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12095] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12095] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12095] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12095] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12096]}, 88) = 12096
./strace-static-x86_64: Process 12096 attached
[pid 12095] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12095] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12095] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12096] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12096] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12096] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12096] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12095] <... futex resumed>)        = 0
[pid 12095] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12095] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12096] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12096] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12095] <... futex resumed>)        = 0
[pid 12095] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12095] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12096] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12096] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12095] <... futex resumed>)        = 0
[pid 12095] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12095] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12096] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12096] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12095] <... futex resumed>)        = 0
[pid 12095] exit_group(0)               = ?
[pid 12096] +++ exited with 0 +++
[pid 12095] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12095, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12097
./strace-static-x86_64: Process 12097 attached
[pid 12097] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12097] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12097] setpgid(0, 0)               = 0
[pid 12097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12097] write(3, "1000", 4)         = 4
[pid 12097] close(3executing program
)                    = 0
[pid 12097] write(1, "executing program\n", 18) = 18
[pid 12097] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12097] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12097] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12097] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12097] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12097] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12097] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12098]}, 88) = 12098
[pid 12097] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12097] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12097] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12098 attached
 <unfinished ...>
[pid 12098] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12098] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12098] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12098] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12097] <... futex resumed>)        = 0
[pid 12097] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12097] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12098] <... futex resumed>)        = 1
[pid 12098] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12098] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12097] <... futex resumed>)        = 0
[pid 12097] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12097] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12098] <... futex resumed>)        = 1
[pid 12098] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12098] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12097] <... futex resumed>)        = 0
[pid 12097] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12097] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12098] <... futex resumed>)        = 1
[pid 12098] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12098] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12097] <... futex resumed>)        = 0
[pid 12097] exit_group(0)               = ?
[pid 12098] <... futex resumed>)        = ?
[pid 12098] +++ exited with 0 +++
[pid 12097] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12097, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12099
./strace-static-x86_64: Process 12099 attached
[pid 12099] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12099] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12099] setpgid(0, 0)               = 0
[pid 12099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12099] write(3, "1000", 4)         = 4
[pid 12099] close(3)                    = 0
[pid 12099] write(1, "executing program\n", 18executing program
) = 18
[pid 12099] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12099] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12099] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12099] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12099] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12099] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12099] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12100 attached
 => {parent_tid=[12100]}, 88) = 12100
[pid 12100] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12100] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12100] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12099] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12099] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12100] <... futex resumed>)        = 0
[pid 12100] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12099] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12100] <... 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 12100] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12099] <... futex resumed>)        = 0
[pid 12099] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12099] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12100] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12100] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12099] <... futex resumed>)        = 0
[pid 12100] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12099] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12099] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12100] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12100] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12099] <... futex resumed>)        = 0
[pid 12099] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12100] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12099] <... futex resumed>)        = 0
[pid 12099] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12100] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12100] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12099] <... futex resumed>)        = 0
[pid 12100] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12099] exit_group(0)               = ?
[pid 12100] <... futex resumed>)        = ?
[pid 12100] +++ exited with 0 +++
[pid 12099] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12099, 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=0x55558842d690) = 12101
./strace-static-x86_64: Process 12101 attached
[pid 12101] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12101] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12101] setpgid(0, 0)               = 0
[pid 12101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12101] write(3, "1000", 4executing program
)         = 4
[pid 12101] close(3)                    = 0
[pid 12101] write(1, "executing program\n", 18) = 18
[pid 12101] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12101] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12101] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12101] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12101] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12101] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12101] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12102]}, 88) = 12102
[pid 12101] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12101] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12101] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12102 attached
 <unfinished ...>
[pid 12102] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12102] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12102] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12102] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12102] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12101] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12101] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12101] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12102] <... futex resumed>)        = 0
[pid 12102] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12102] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12101] <... futex resumed>)        = 0
[pid 12101] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12102] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12101] <... futex resumed>)        = 0
[pid 12101] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12102] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12102] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12101] <... futex resumed>)        = 0
[pid 12101] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12101] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12102] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12102] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12101] <... futex resumed>)        = 0
[pid 12101] exit_group(0)               = ?
[pid 12102] +++ exited with 0 +++
[pid 12101] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12101, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12103
./strace-static-x86_64: Process 12103 attached
[pid 12103] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12103] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12103] setpgid(0, 0)               = 0
[pid 12103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12103] write(3, "1000", 4)         = 4
[pid 12103] close(3)                    = 0
[pid 12103] write(1, "executing program\n", 18executing program
) = 18
[pid 12103] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12103] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12103] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12103] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12103] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12103] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12103] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12104 attached
 <unfinished ...>
[pid 12104] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12104] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12104] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12103] <... clone3 resumed> => {parent_tid=[12104]}, 88) = 12104
[pid 12103] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12103] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12104] <... futex resumed>)        = 0
[pid 12104] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12104] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12104] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12103] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12103] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12104] <... futex resumed>)        = 0
[pid 12104] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12104] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12104] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12103] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12103] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12104] <... futex resumed>)        = 0
[pid 12104] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12103] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12104] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12104] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12103] <... futex resumed>)        = 0
[pid 12103] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12103] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12104] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12104] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12103] <... futex resumed>)        = 0
[pid 12104] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12103] exit_group(0)               = ?
[pid 12104] <... futex resumed>)        = ?
[pid 12104] +++ exited with 0 +++
[pid 12103] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12103, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12105
./strace-static-x86_64: Process 12105 attached
[pid 12105] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12105] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12105] setpgid(0, 0)               = 0
[pid 12105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12105] write(3, "1000", 4)         = 4
[pid 12105] close(3)                    = 0
[pid 12105] write(1, "executing program\n", 18executing program
) = 18
[pid 12105] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12105] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12105] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12105] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12105] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12105] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12105] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12106 attached
 => {parent_tid=[12106]}, 88) = 12106
[pid 12106] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12105] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12105] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12105] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12106] <... set_robust_list resumed>) = 0
[pid 12106] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12106] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12106] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12105] <... futex resumed>)        = 0
[pid 12106] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12105] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12106] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12105] <... futex resumed>)        = 0
[pid 12106] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12105] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12106] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12106] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12105] <... futex resumed>)        = 0
[pid 12106] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12105] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12106] <... futex resumed>)        = 0
[pid 12105] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12106] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12106] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12106] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12105] <... futex resumed>)        = 0
[pid 12105] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12106] <... futex resumed>)        = 0
[pid 12106] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12105] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12106] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12106] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12106] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12105] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12105] exit_group(0)               = ?
[pid 12106] <... futex resumed>)        = ?
[pid 12106] +++ exited with 0 +++
[pid 12105] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12105, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12107
./strace-static-x86_64: Process 12107 attached
[pid 12107] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12107] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12107] setpgid(0, 0)               = 0
[pid 12107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12107] write(3, "1000", 4)         = 4
[pid 12107] close(3)                    = 0
[pid 12107] write(1, "executing program\n", 18executing program
) = 18
[pid 12107] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12107] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12107] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12107] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12107] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12107] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12107] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12108 attached
 => {parent_tid=[12108]}, 88) = 12108
[pid 12108] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12107] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12108] <... set_robust_list resumed>) = 0
[pid 12108] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12108] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12107] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12107] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12108] <... futex resumed>)        = 0
[pid 12108] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12107] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12108] <... 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 12108] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12108] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12107] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12107] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12108] <... futex resumed>)        = 0
[pid 12108] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12108] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12108] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12107] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12107] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12108] <... futex resumed>)        = 0
[pid 12108] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12108] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12108] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12107] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12107] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12108] <... futex resumed>)        = 0
[pid 12107] <... futex resumed>)        = 1
[pid 12107] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12108] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12108] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12107] <... futex resumed>)        = 0
[pid 12108] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12107] exit_group(0)               = ?
[pid 12108] <... futex resumed>)        = ?
[pid 12108] +++ exited with 0 +++
[pid 12107] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12107, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12109
./strace-static-x86_64: Process 12109 attached
[pid 12109] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12109] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12109] setpgid(0, 0)               = 0
[pid 12109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12109] write(3, "1000", 4)         = 4
[pid 12109] close(3)                    = 0
executing program
[pid 12109] write(1, "executing program\n", 18) = 18
[pid 12109] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12109] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12109] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12109] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12109] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12109] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12109] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12110 attached
 => {parent_tid=[12110]}, 88) = 12110
[pid 12109] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12109] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12109] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12110] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12110] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12110] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12110] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12109] <... futex resumed>)        = 0
[pid 12109] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12109] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12110] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12110] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12109] <... futex resumed>)        = 0
[pid 12109] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12109] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12110] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12110] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12109] <... futex resumed>)        = 0
[pid 12109] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12109] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12110] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12110] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12110] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12109] <... futex resumed>)        = 0
[pid 12109] exit_group(0)               = ?
[pid 12110] <... futex resumed>)        = ?
[pid 12110] +++ exited with 0 +++
[pid 12109] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12109, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12111
./strace-static-x86_64: Process 12111 attached
[pid 12111] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12111] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12111] setpgid(0, 0)               = 0
[pid 12111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12111] write(3, "1000", 4)         = 4
[pid 12111] close(3)                    = 0
[pid 12111] write(1, "executing program\n", 18executing program
) = 18
[pid 12111] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12111] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12111] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12111] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12111] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12111] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12111] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12112 attached
 <unfinished ...>
[pid 12112] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12112] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12112] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12111] <... clone3 resumed> => {parent_tid=[12112]}, 88) = 12112
[pid 12111] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12111] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12112] <... futex resumed>)        = 0
[pid 12112] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12112] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12112] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12111] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12111] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12112] <... futex resumed>)        = 0
[pid 12112] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12112] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12112] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12111] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12111] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12112] <... futex resumed>)        = 0
[pid 12112] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12112] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12112] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12111] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12111] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12112] <... futex resumed>)        = 0
[pid 12112] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12111] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12112] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12112] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12111] <... futex resumed>)        = 0
[pid 12111] exit_group(0)               = ?
[pid 12112] +++ exited with 0 +++
[pid 12111] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12111, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12113
./strace-static-x86_64: Process 12113 attached
[pid 12113] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12113] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12113] setpgid(0, 0)               = 0
[pid 12113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12113] write(3, "1000", 4)         = 4
[pid 12113] close(3executing program
)                    = 0
[pid 12113] write(1, "executing program\n", 18) = 18
[pid 12113] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12113] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12113] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12113] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12113] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12113] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12113] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12114 attached
 => {parent_tid=[12114]}, 88) = 12114
[pid 12114] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12113] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12114] <... set_robust_list resumed>) = 0
[pid 12113] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12114] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12113] <... futex resumed>)        = 0
[pid 12114] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12114] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12113] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12114] <... 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 12114] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12113] <... futex resumed>)        = 0
[pid 12113] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12113] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12114] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12114] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12113] <... futex resumed>)        = 0
[pid 12113] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12114] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12113] <... futex resumed>)        = 0
[pid 12114] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12113] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12114] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12113] <... futex resumed>)        = 0
[pid 12113] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12113] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12114] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12114] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12113] <... futex resumed>)        = 0
[pid 12113] exit_group(0)               = ?
[pid 12114] +++ exited with 0 +++
[pid 12113] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12113, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12115
./strace-static-x86_64: Process 12115 attached
[pid 12115] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12115] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12115] setpgid(0, 0)               = 0
[pid 12115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12115] write(3, "1000", 4)         = 4
[pid 12115] close(3)                    = 0
[pid 12115] write(1, "executing program\n", 18executing program
) = 18
[pid 12115] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12115] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12115] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12115] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12115] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12115] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12115] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12116 attached
 <unfinished ...>
[pid 12116] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12116] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12116] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12115] <... clone3 resumed> => {parent_tid=[12116]}, 88) = 12116
[pid 12115] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12115] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12116] <... futex resumed>)        = 0
[pid 12116] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12116] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12116] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12115] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12115] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12116] <... futex resumed>)        = 0
[pid 12116] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12116] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12116] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12115] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12115] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12116] <... futex resumed>)        = 0
[pid 12116] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12116] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12116] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12115] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12115] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12116] <... futex resumed>)        = 0
[pid 12116] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12116] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12116] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12115] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12115] exit_group(0)               = ?
[pid 12116] <... futex resumed>)        = ?
[pid 12116] +++ exited with 0 +++
[pid 12115] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12115, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12117
./strace-static-x86_64: Process 12117 attached
[pid 12117] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12117] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12117] setpgid(0, 0)               = 0
[pid 12117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12117] write(3, "1000", 4)         = 4
[pid 12117] close(3)                    = 0
executing program
[pid 12117] write(1, "executing program\n", 18) = 18
[pid 12117] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12117] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12117] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12117] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12117] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12117] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12117] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12118 attached
 => {parent_tid=[12118]}, 88) = 12118
[pid 12117] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12117] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12117] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12118] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12118] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12118] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12118] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12117] <... futex resumed>)        = 0
[pid 12117] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12117] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12118] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12118] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12117] <... futex resumed>)        = 0
[pid 12117] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12117] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12118] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12118] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12117] <... futex resumed>)        = 0
[pid 12117] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12117] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12118] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12118] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12117] <... futex resumed>)        = 0
[pid 12117] exit_group(0)               = ?
[pid 12118] +++ exited with 0 +++
[pid 12117] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12117, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12119
./strace-static-x86_64: Process 12119 attached
[pid 12119] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12119] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12119] setpgid(0, 0)               = 0
[pid 12119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12119] write(3, "1000", 4)         = 4
[pid 12119] close(3executing program
)                    = 0
[pid 12119] write(1, "executing program\n", 18) = 18
[pid 12119] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12119] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12119] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12119] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12119] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12119] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12119] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12120]}, 88) = 12120
[pid 12119] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12119] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12119] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12120 attached
 <unfinished ...>
[pid 12120] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12120] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12120] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12120] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12119] <... futex resumed>)        = 0
[pid 12119] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12119] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12120] <... futex resumed>)        = 1
[pid 12120] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12120] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12119] <... futex resumed>)        = 0
[pid 12119] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12119] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12120] <... futex resumed>)        = 1
[pid 12120] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12120] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12119] <... futex resumed>)        = 0
[pid 12119] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12119] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12120] <... futex resumed>)        = 1
[pid 12120] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12120] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12119] <... futex resumed>)        = 0
[pid 12119] exit_group(0)               = ?
[pid 12120] <... futex resumed>)        = ?
[pid 12120] +++ exited with 0 +++
[pid 12119] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12119, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12121
./strace-static-x86_64: Process 12121 attached
[pid 12121] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12121] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12121] setpgid(0, 0)               = 0
[pid 12121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12121] write(3, "1000", 4)         = 4
[pid 12121] close(3executing program
)                    = 0
[pid 12121] write(1, "executing program\n", 18) = 18
[pid 12121] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12121] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12121] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12121] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12121] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12121] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12121] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12122]}, 88) = 12122
[pid 12121] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12121] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12121] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12122 attached
 <unfinished ...>
[pid 12122] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12122] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12122] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12122] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12121] <... futex resumed>)        = 0
[pid 12121] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12121] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12122] <... futex resumed>)        = 1
[pid 12122] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12122] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12121] <... futex resumed>)        = 0
[pid 12121] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12121] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12122] <... futex resumed>)        = 1
[pid 12122] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12122] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12121] <... futex resumed>)        = 0
[pid 12121] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12121] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12122] <... futex resumed>)        = 1
[pid 12122] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12122] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12121] <... futex resumed>)        = 0
[pid 12121] exit_group(0)               = ?
[pid 12122] <... futex resumed>)        = ?
[pid 12122] +++ exited with 0 +++
[pid 12121] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12121, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12123
./strace-static-x86_64: Process 12123 attached
[pid 12123] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12123] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12123] setpgid(0, 0)               = 0
[pid 12123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12123] write(3, "1000", 4)         = 4
[pid 12123] close(3)                    = 0
[pid 12123] write(1, "executing program\n", 18executing program
) = 18
[pid 12123] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12123] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12123] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12123] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12123] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12123] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12123] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12124 attached
 => {parent_tid=[12124]}, 88) = 12124
[pid 12124] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12124] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12124] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12123] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12123] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12124] <... futex resumed>)        = 0
[pid 12123] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12124] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12124] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12124] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12123] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12123] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12124] <... futex resumed>)        = 0
[pid 12124] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12124] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12124] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12123] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12123] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12124] <... futex resumed>)        = 0
[pid 12124] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12123] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12124] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12124] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12124] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12123] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12124] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12123] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12124] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12124] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12124] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12123] <... futex resumed>)        = 0
[pid 12123] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12123] exit_group(0)               = ?
[pid 12124] <... futex resumed>)        = ?
[pid 12124] +++ exited with 0 +++
[pid 12123] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12123, si_uid=0, si_status=0, 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 12125 attached
, child_tidptr=0x55558842d690) = 12125
[pid 12125] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12125] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12125] setpgid(0, 0)               = 0
[pid 12125] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12125] write(3, "1000", 4)         = 4
[pid 12125] close(3)                    = 0
[pid 12125] write(1, "executing program\n", 18executing program
) = 18
[pid 12125] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12125] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12125] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12125] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12125] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12125] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12125] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12126 attached
 => {parent_tid=[12126]}, 88) = 12126
[pid 12126] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12125] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12126] <... set_robust_list resumed>) = 0
[pid 12125] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12126] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12125] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12126] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12125] <... futex resumed>)        = 0
[pid 12125] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12126] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12126] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12125] <... futex resumed>)        = 0
[pid 12126] <... futex resumed>)        = 1
[pid 12125] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12126] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12125] <... futex resumed>)        = 0
[pid 12126] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12125] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12126] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12125] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12126] <... futex resumed>)        = 0
[pid 12125] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12126] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12125] <... futex resumed>)        = 0
[pid 12125] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12126] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12126] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12125] <... futex resumed>)        = 0
[pid 12126] <... futex resumed>)        = 1
[pid 12125] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12125] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12126] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12126] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12125] <... futex resumed>)        = 0
[pid 12126] <... futex resumed>)        = 1
[pid 12126] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12125] exit_group(0)               = ?
[pid 12126] <... futex resumed>)        = 231
[pid 12126] +++ exited with 0 +++
[pid 12125] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12125, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12127
./strace-static-x86_64: Process 12127 attached
[pid 12127] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12127] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12127] setpgid(0, 0)               = 0
[pid 12127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12127] write(3, "1000", 4)         = 4
[pid 12127] close(3)                    = 0
executing program
[pid 12127] write(1, "executing program\n", 18) = 18
[pid 12127] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12127] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12127] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12127] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12127] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12127] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12127] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12128 attached
 => {parent_tid=[12128]}, 88) = 12128
[pid 12128] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12127] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12127] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12127] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12128] <... set_robust_list resumed>) = 0
[pid 12128] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12128] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12128] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12127] <... futex resumed>)        = 0
[pid 12127] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12127] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12128] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12128] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12127] <... futex resumed>)        = 0
[pid 12127] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12127] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12128] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12128] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12127] <... futex resumed>)        = 0
[pid 12127] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12127] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12128] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12128] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12127] <... futex resumed>)        = 0
[pid 12127] exit_group(0)               = ?
[pid 12128] +++ exited with 0 +++
[pid 12127] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12127, si_uid=0, si_status=0, 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 12129 attached
, child_tidptr=0x55558842d690) = 12129
[pid 12129] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12129] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12129] setpgid(0, 0)               = 0
[pid 12129] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12129] write(3, "1000", 4)         = 4
[pid 12129] close(3)                    = 0
[pid 12129] write(1, "executing program\n", 18executing program
) = 18
[pid 12129] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12129] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12129] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12129] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12129] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12129] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12129] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12130 attached
 <unfinished ...>
[pid 12130] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12129] <... clone3 resumed> => {parent_tid=[12130]}, 88) = 12130
[pid 12129] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12129] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12129] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12130] <... set_robust_list resumed>) = 0
[pid 12130] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12130] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12130] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12129] <... futex resumed>)        = 0
[pid 12129] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12129] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12130] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12130] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12129] <... futex resumed>)        = 0
[pid 12130] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12129] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12129] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12130] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12130] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12130] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12129] <... futex resumed>)        = 0
[pid 12129] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12129] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12130] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12130] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12129] <... futex resumed>)        = 0
[pid 12130] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12129] exit_group(0)               = ?
[pid 12130] <... futex resumed>)        = ?
[pid 12130] +++ exited with 0 +++
[pid 12129] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12129, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12131
./strace-static-x86_64: Process 12131 attached
[pid 12131] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12131] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12131] setpgid(0, 0)               = 0
[pid 12131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12131] write(3, "1000", 4)         = 4
[pid 12131] close(3executing program
)                    = 0
[pid 12131] write(1, "executing program\n", 18) = 18
[pid 12131] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12131] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12131] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12131] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12131] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12131] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12131] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12132]}, 88) = 12132
[pid 12131] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12131] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12131] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12132 attached
 <unfinished ...>
[pid 12132] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12132] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12132] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12132] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12131] <... futex resumed>)        = 0
[pid 12131] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12131] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12132] <... futex resumed>)        = 1
[pid 12132] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12132] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12131] <... futex resumed>)        = 0
[pid 12131] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12131] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12132] <... futex resumed>)        = 1
[pid 12132] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12132] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12131] <... futex resumed>)        = 0
[pid 12131] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12131] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12132] <... futex resumed>)        = 1
[pid 12132] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12132] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12131] <... futex resumed>)        = 0
[pid 12131] exit_group(0)               = ?
[pid 12132] <... futex resumed>)        = ?
[pid 12132] +++ exited with 0 +++
[pid 12131] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12131, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12133
./strace-static-x86_64: Process 12133 attached
[pid 12133] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12133] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12133] setpgid(0, 0)               = 0
[pid 12133] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12133] write(3, "1000", 4)         = 4
[pid 12133] close(3)                    = 0
[pid 12133] write(1, "executing program\n", 18executing program
) = 18
[pid 12133] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12133] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12133] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12133] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12133] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12133] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12133] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12134 attached
 => {parent_tid=[12134]}, 88) = 12134
[pid 12134] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12133] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12133] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12133] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12134] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12134] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12134] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12133] <... futex resumed>)        = 0
[pid 12133] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12133] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12134] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12134] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12133] <... futex resumed>)        = 0
[pid 12133] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12133] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12134] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12134] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12133] <... futex resumed>)        = 0
[pid 12133] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12133] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12134] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12134] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12133] <... futex resumed>)        = 0
[pid 12133] exit_group(0)               = ?
[pid 12134] +++ exited with 0 +++
[pid 12133] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12133, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12135
./strace-static-x86_64: Process 12135 attached
[pid 12135] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12135] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12135] setpgid(0, 0)               = 0
[pid 12135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12135] write(3, "1000", 4)         = 4
[pid 12135] close(3)                    = 0
[pid 12135] write(1, "executing program\n", 18executing program
) = 18
[pid 12135] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12135] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12135] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12135] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12135] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12135] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12135] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12136 attached
 => {parent_tid=[12136]}, 88) = 12136
[pid 12136] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12136] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12136] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12135] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12135] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12136] <... futex resumed>)        = 0
[pid 12136] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12136] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12136] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12135] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12135] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12136] <... futex resumed>)        = 0
[pid 12136] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12136] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12136] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12135] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12135] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12136] <... futex resumed>)        = 0
[pid 12136] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12136] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12135] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12136] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12135] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12135] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12136] <... futex resumed>)        = 0
[pid 12136] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12135] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12136] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12136] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12136] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12135] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12135] exit_group(0)               = ?
[pid 12136] <... futex resumed>)        = ?
[pid 12136] +++ exited with 0 +++
[pid 12135] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12135, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12137
./strace-static-x86_64: Process 12137 attached
[pid 12137] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12137] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12137] setpgid(0, 0)               = 0
[pid 12137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12137] write(3, "1000", 4)         = 4
[pid 12137] close(3)                    = 0
[pid 12137] write(1, "executing program\n", 18executing program
) = 18
[pid 12137] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12137] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12137] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12137] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12137] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12137] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12137] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12138]}, 88) = 12138
./strace-static-x86_64: Process 12138 attached
[pid 12138] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12137] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12137] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12137] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12138] <... set_robust_list resumed>) = 0
[pid 12138] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12138] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12138] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12137] <... futex resumed>)        = 0
[pid 12137] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12137] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12138] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12138] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12137] <... futex resumed>)        = 0
[pid 12137] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12137] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12138] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12138] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12137] <... futex resumed>)        = 0
[pid 12137] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12137] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12138] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12138] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12137] <... futex resumed>)        = 0
[pid 12137] exit_group(0)               = ?
[pid 12138] +++ exited with 0 +++
[pid 12137] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12137, si_uid=0, si_status=0, 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 12139 attached
, child_tidptr=0x55558842d690) = 12139
[pid 12139] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12139] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12139] setpgid(0, 0)               = 0
[pid 12139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12139] write(3, "1000", 4)         = 4
[pid 12139] close(3)                    = 0
executing program
[pid 12139] write(1, "executing program\n", 18) = 18
[pid 12139] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12139] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12139] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12139] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12139] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12139] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12139] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12140]}, 88) = 12140
[pid 12139] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12139] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12139] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12140 attached
 <unfinished ...>
[pid 12140] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12140] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12140] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12140] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12139] <... futex resumed>)        = 0
[pid 12139] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12139] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12140] <... futex resumed>)        = 1
[pid 12140] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12140] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12139] <... futex resumed>)        = 0
[pid 12139] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12139] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12140] <... futex resumed>)        = 1
[pid 12140] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12140] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12139] <... futex resumed>)        = 0
[pid 12139] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12139] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12140] <... futex resumed>)        = 1
[pid 12140] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12140] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12139] <... futex resumed>)        = 0
[pid 12139] exit_group(0)               = ?
[pid 12140] <... futex resumed>)        = ?
[pid 12140] +++ exited with 0 +++
[pid 12139] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12139, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12141
./strace-static-x86_64: Process 12141 attached
[pid 12141] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12141] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12141] setpgid(0, 0)               = 0
[pid 12141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12141] write(3, "1000", 4)         = 4
[pid 12141] close(3)                    = 0
[pid 12141] write(1, "executing program\n", 18executing program
) = 18
[pid 12141] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12141] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12141] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12141] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12141] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12141] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12141] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12142 attached
 <unfinished ...>
[pid 12142] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12142] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12142] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12141] <... clone3 resumed> => {parent_tid=[12142]}, 88) = 12142
[pid 12141] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12141] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12142] <... futex resumed>)        = 0
[pid 12142] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12142] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12142] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12141] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12141] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12142] <... futex resumed>)        = 0
[pid 12142] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12142] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12142] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12141] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12141] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12142] <... futex resumed>)        = 0
[pid 12142] 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12142] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12141] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12141] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12142] <... futex resumed>)        = 0
[pid 12142] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12142] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12142] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12141] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12141] exit_group(0)               = ?
[pid 12142] <... futex resumed>)        = ?
[pid 12142] +++ exited with 0 +++
[pid 12141] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12141, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12143
./strace-static-x86_64: Process 12143 attached
[pid 12143] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12143] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12143] setpgid(0, 0)               = 0
[pid 12143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12143] write(3, "1000", 4)         = 4
[pid 12143] close(3)                    = 0
[pid 12143] write(1, "executing program\n", 18executing program
) = 18
[pid 12143] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12143] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12143] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12143] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12143] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12143] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12143] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12144 attached
 => {parent_tid=[12144]}, 88) = 12144
[pid 12143] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12144] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12143] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12144] <... set_robust_list resumed>) = 0
[pid 12143] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12144] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12143] <... futex resumed>)        = 0
[pid 12144] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12144] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12143] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12144] <... 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 12144] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12143] <... futex resumed>)        = 0
[pid 12143] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12143] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12144] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12144] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12143] <... futex resumed>)        = 0
[pid 12143] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12143] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12144] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12144] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12143] <... futex resumed>)        = 0
[pid 12143] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12144] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12143] <... futex resumed>)        = 0
[pid 12143] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12144] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12144] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12143] <... futex resumed>)        = 0
[pid 12144] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12143] exit_group(0)               = ?
[pid 12144] <... futex resumed>)        = ?
[pid 12144] +++ exited with 0 +++
[pid 12143] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12143, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12145
./strace-static-x86_64: Process 12145 attached
[pid 12145] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12145] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12145] setpgid(0, 0)               = 0
[pid 12145] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12145] write(3, "1000", 4)         = 4
[pid 12145] close(3)                    = 0
executing program
[pid 12145] write(1, "executing program\n", 18) = 18
[pid 12145] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12145] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12145] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12145] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12145] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12145] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12145] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12146]}, 88) = 12146
./strace-static-x86_64: Process 12146 attached
[pid 12146] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12145] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12146] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12146] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12145] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12145] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12146] <... futex resumed>)        = 0
[pid 12146] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12146] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12146] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12145] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12145] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12146] <... futex resumed>)        = 0
[pid 12146] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12145] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12146] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12146] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12145] <... futex resumed>)        = 0
[pid 12145] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12145] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12146] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12146] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12145] <... futex resumed>)        = 0
[pid 12145] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12145] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12146] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12146] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12145] <... futex resumed>)        = 0
[pid 12145] exit_group(0)               = ?
[pid 12146] +++ exited with 0 +++
[pid 12145] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12145, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12147
./strace-static-x86_64: Process 12147 attached
[pid 12147] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12147] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12147] setpgid(0, 0)               = 0
[pid 12147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12147] write(3, "1000", 4)         = 4
[pid 12147] close(3)                    = 0
executing program
[pid 12147] write(1, "executing program\n", 18) = 18
[pid 12147] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12147] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12147] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12147] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12147] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12147] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12147] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12148 attached
 => {parent_tid=[12148]}, 88) = 12148
[pid 12147] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12147] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12147] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12148] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12148] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12148] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12148] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12147] <... futex resumed>)        = 0
[pid 12147] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12147] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12148] <... futex resumed>)        = 1
[pid 12148] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12148] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12147] <... futex resumed>)        = 0
[pid 12147] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12147] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12148] <... futex resumed>)        = 1
[pid 12148] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12148] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12147] <... futex resumed>)        = 0
[pid 12147] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12147] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12148] <... futex resumed>)        = 1
[pid 12148] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12148] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12147] <... futex resumed>)        = 0
[pid 12147] exit_group(0)               = ?
[pid 12148] +++ exited with 0 +++
[pid 12147] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12147, si_uid=0, si_status=0, 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 12149 attached
, child_tidptr=0x55558842d690) = 12149
[pid 12149] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12149] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12149] setpgid(0, 0)               = 0
[pid 12149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12149] write(3, "1000", 4)         = 4
[pid 12149] close(3executing program
)                    = 0
[pid 12149] write(1, "executing program\n", 18) = 18
[pid 12149] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12149] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12149] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12149] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12149] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12149] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12149] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12150 attached
 => {parent_tid=[12150]}, 88) = 12150
[pid 12150] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12150] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12150] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12149] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12149] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12150] <... futex resumed>)        = 0
[pid 12150] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12149] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12150] <... 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 12150] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12150] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12149] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12149] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12150] <... futex resumed>)        = 0
[pid 12150] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12150] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12150] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12149] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12149] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12150] <... futex resumed>)        = 0
[pid 12150] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12150] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12150] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12149] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12149] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12150] <... futex resumed>)        = 0
[pid 12150] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12149] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12150] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12150] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12150] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12149] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12149] exit_group(0)               = ?
[pid 12150] <... futex resumed>)        = ?
[pid 12150] +++ exited with 0 +++
[pid 12149] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12149, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12151
./strace-static-x86_64: Process 12151 attached
[pid 12151] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12151] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12151] setpgid(0, 0)               = 0
[pid 12151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12151] write(3, "1000", 4)         = 4
executing program
[pid 12151] close(3)                    = 0
[pid 12151] write(1, "executing program\n", 18) = 18
[pid 12151] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12151] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12151] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12151] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12151] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12151] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12151] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12152]}, 88) = 12152
[pid 12151] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12151] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12151] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12152 attached
 <unfinished ...>
[pid 12152] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12152] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12152] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12152] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12152] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12151] <... futex resumed>)        = 0
[pid 12152] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12151] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12152] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12151] <... futex resumed>)        = 0
[pid 12152] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12151] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12152] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12151] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12152] <... futex resumed>)        = 0
[pid 12151] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12152] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12151] <... futex resumed>)        = 0
[pid 12152] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12151] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12152] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12151] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12152] <... futex resumed>)        = 0
[pid 12151] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12152] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12151] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12152] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12152] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12151] <... futex resumed>)        = 0
[pid 12152] <... futex resumed>)        = 1
[pid 12151] exit_group(0 <unfinished ...>
[pid 12152] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12151] <... exit_group resumed>)   = ?
[pid 12152] <... futex resumed>)        = -1 (errno 18446744073709551414)
[pid 12152] +++ exited with 0 +++
[pid 12151] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12151, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12153
./strace-static-x86_64: Process 12153 attached
[pid 12153] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12153] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12153] setpgid(0, 0)               = 0
[pid 12153] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12153] write(3, "1000", 4)         = 4
executing program
[pid 12153] close(3)                    = 0
[pid 12153] write(1, "executing program\n", 18) = 18
[pid 12153] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12153] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12153] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12153] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12153] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12153] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12153] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12154 attached
 => {parent_tid=[12154]}, 88) = 12154
[pid 12153] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12154] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12153] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12153] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12153] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12154] <... set_robust_list resumed>) = 0
[pid 12154] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12154] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12154] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12153] <... futex resumed>)        = 0
[pid 12153] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12153] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12154] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12154] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12153] <... futex resumed>)        = 0
[pid 12153] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12153] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12154] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12154] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12153] <... futex resumed>)        = 0
[pid 12153] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12153] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12154] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12154] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12153] <... futex resumed>)        = 0
[pid 12153] exit_group(0)               = ?
[pid 12154] +++ exited with 0 +++
[pid 12153] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12153, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12155
./strace-static-x86_64: Process 12155 attached
[pid 12155] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12155] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12155] setpgid(0, 0)               = 0
[pid 12155] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12155] write(3, "1000", 4)         = 4
[pid 12155] close(3)                    = 0
[pid 12155] write(1, "executing program\n", 18executing program
) = 18
[pid 12155] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12155] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12155] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12155] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12155] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12155] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12155] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12156 attached
 => {parent_tid=[12156]}, 88) = 12156
[pid 12156] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12156] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12156] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12155] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12155] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12156] <... futex resumed>)        = 0
[pid 12155] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12156] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12156] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12156] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12155] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12155] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12156] <... futex resumed>)        = 0
[pid 12156] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12156] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12156] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12155] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12155] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12156] <... futex resumed>)        = 0
[pid 12156] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12156] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12156] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12155] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12155] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12156] <... futex resumed>)        = 0
[pid 12155] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12156] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12156] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12156] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12155] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12155] exit_group(0)               = ?
[pid 12156] <... futex resumed>)        = ?
[pid 12156] +++ exited with 0 +++
[pid 12155] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12155, si_uid=0, si_status=0, 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 12157 attached
, child_tidptr=0x55558842d690) = 12157
[pid 12157] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12157] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12157] setpgid(0, 0)               = 0
[pid 12157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12157] write(3, "1000", 4)         = 4
[pid 12157] close(3)                    = 0
executing program
[pid 12157] write(1, "executing program\n", 18) = 18
[pid 12157] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12157] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12157] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12157] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12157] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12157] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12157] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12158 attached
 => {parent_tid=[12158]}, 88) = 12158
[pid 12158] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12157] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12158] <... set_robust_list resumed>) = 0
[pid 12158] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12158] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12157] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12157] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12158] <... futex resumed>)        = 0
[pid 12157] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12158] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12158] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12157] <... futex resumed>)        = 0
[pid 12158] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12157] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12158] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12157] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12158] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12157] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12158] <... futex resumed>)        = 0
[pid 12157] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12158] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12157] <... futex resumed>)        = 0
[pid 12157] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12158] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12158] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12157] <... futex resumed>)        = 0
[pid 12157] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12157] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12158] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12158] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12157] <... futex resumed>)        = 0
[pid 12158] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12157] exit_group(0)               = ?
[pid 12158] <... futex resumed>)        = ?
[pid 12158] +++ exited with 0 +++
[pid 12157] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12157, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12159
./strace-static-x86_64: Process 12159 attached
[pid 12159] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12159] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12159] setpgid(0, 0)               = 0
[pid 12159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12159] write(3, "1000", 4)         = 4
[pid 12159] close(3)                    = 0
[pid 12159] write(1, "executing program\n", 18executing program
) = 18
[pid 12159] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12159] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12159] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12159] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12159] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12159] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12159] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12160 attached
 => {parent_tid=[12160]}, 88) = 12160
[pid 12160] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12160] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12160] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12159] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12159] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12160] <... futex resumed>)        = 0
[pid 12159] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12160] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12160] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12160] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12159] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12159] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12160] <... futex resumed>)        = 0
[pid 12160] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12160] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12160] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12159] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12159] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12160] <... futex resumed>)        = 0
[pid 12160] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12160] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12160] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12159] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12159] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12160] <... futex resumed>)        = 0
[pid 12160] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12159] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12160] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12160] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12160] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12159] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12159] exit_group(0)               = ?
[pid 12160] <... futex resumed>)        = ?
[pid 12160] +++ exited with 0 +++
[pid 12159] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12159, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12161
./strace-static-x86_64: Process 12161 attached
[pid 12161] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12161] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12161] setpgid(0, 0)               = 0
[pid 12161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12161] write(3, "1000", 4)         = 4
[pid 12161] close(3)                    = 0
[pid 12161] write(1, "executing program\n", 18executing program
) = 18
[pid 12161] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12161] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12161] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12161] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12161] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12161] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12161] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12162 attached
 <unfinished ...>
[pid 12162] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12161] <... clone3 resumed> => {parent_tid=[12162]}, 88) = 12162
[pid 12161] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12162] <... set_robust_list resumed>) = 0
[pid 12161] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12162] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12161] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12162] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12161] <... futex resumed>)        = 0
[pid 12162] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12161] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12162] <... 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 12162] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12161] <... futex resumed>)        = 0
[pid 12161] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12161] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12162] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12162] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12161] <... futex resumed>)        = 0
[pid 12161] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12161] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12162] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12162] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12161] <... futex resumed>)        = 0
[pid 12161] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12161] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12162] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12162] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12161] <... futex resumed>)        = 0
[pid 12161] exit_group(0)               = ?
[pid 12162] +++ exited with 0 +++
[pid 12161] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12161, si_uid=0, si_status=0, 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 12163 attached
 <unfinished ...>
[pid 12163] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12163] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12163] setpgid(0, 0)               = 0
[pid   555] <... clone resumed>, child_tidptr=0x55558842d690) = 12163
[pid 12163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12163] write(3, "1000", 4)         = 4
[pid 12163] close(3)                    = 0
[pid 12163] write(1, "executing program\n", 18executing program
) = 18
[pid 12163] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12163] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12163] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12163] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12163] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12163] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12163] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12164 attached
 => {parent_tid=[12164]}, 88) = 12164
[pid 12164] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12164] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12164] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12163] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12163] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12164] <... futex resumed>)        = 0
[pid 12164] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12164] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12164] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12163] <... futex resumed>)        = 1
[pid 12163] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12163] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12164] <... futex resumed>)        = 0
[pid 12164] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12164] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12164] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12163] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12163] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12164] <... futex resumed>)        = 0
[pid 12164] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12164] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12164] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12163] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12163] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12164] <... futex resumed>)        = 0
[pid 12163] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12164] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12164] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12164] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12163] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12163] exit_group(0)               = ?
[pid 12164] <... futex resumed>)        = ?
[pid 12164] +++ exited with 0 +++
[pid 12163] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12163, 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=0x55558842d690) = 12165
./strace-static-x86_64: Process 12165 attached
[pid 12165] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12165] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12165] setpgid(0, 0)               = 0
[pid 12165] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12165] write(3, "1000", 4executing program
)         = 4
[pid 12165] close(3)                    = 0
[pid 12165] write(1, "executing program\n", 18) = 18
[pid 12165] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12165] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12165] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12165] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12165] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12165] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12165] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12166 attached
 => {parent_tid=[12166]}, 88) = 12166
[pid 12165] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12165] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12165] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12166] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12166] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12166] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12166] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12165] <... futex resumed>)        = 0
[pid 12165] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12165] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12166] <... futex resumed>)        = 1
[pid 12166] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12166] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12165] <... futex resumed>)        = 0
[pid 12165] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12165] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12166] <... futex resumed>)        = 1
[pid 12166] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12166] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12165] <... futex resumed>)        = 0
[pid 12165] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12165] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12166] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12166] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12165] <... futex resumed>)        = 0
[pid 12165] exit_group(0)               = ?
[pid 12166] +++ exited with 0 +++
[pid 12165] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12165, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12167
./strace-static-x86_64: Process 12167 attached
[pid 12167] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12167] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12167] setpgid(0, 0)               = 0
[pid 12167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12167] write(3, "1000", 4)         = 4
[pid 12167] close(3)                    = 0
executing program
[pid 12167] write(1, "executing program\n", 18) = 18
[pid 12167] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12167] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12167] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12167] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12167] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12167] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12167] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12168]}, 88) = 12168
[pid 12167] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12167] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12167] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12168 attached
 <unfinished ...>
[pid 12168] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12168] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12168] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12168] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12167] <... futex resumed>)        = 0
[pid 12167] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12167] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12168] <... futex resumed>)        = 1
[pid 12168] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12168] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12167] <... futex resumed>)        = 0
[pid 12167] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12167] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12168] <... futex resumed>)        = 1
[pid 12168] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12168] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12167] <... futex resumed>)        = 0
[pid 12167] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12167] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12168] <... futex resumed>)        = 1
[pid 12168] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12168] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12167] <... futex resumed>)        = 0
[pid 12167] exit_group(0 <unfinished ...>
[pid 12168] <... futex resumed>)        = ?
[pid 12167] <... exit_group resumed>)   = ?
[pid 12168] +++ exited with 0 +++
[pid 12167] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12167, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12169
./strace-static-x86_64: Process 12169 attached
[pid 12169] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12169] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12169] setpgid(0, 0)               = 0
[pid 12169] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12169] write(3, "1000", 4)         = 4
[pid 12169] close(3)                    = 0
[pid 12169] write(1, "executing program\n", 18executing program
) = 18
[pid 12169] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12169] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12169] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12169] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12169] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12169] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12169] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12170 attached
 => {parent_tid=[12170]}, 88) = 12170
[pid 12169] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12169] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12169] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12170] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12170] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12170] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12169] <... futex resumed>)        = 0
[pid 12169] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12169] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12170] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12170] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12169] <... futex resumed>)        = 0
[pid 12169] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12169] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12170] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12170] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12169] <... futex resumed>)        = 0
[pid 12169] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12169] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12170] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12170] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12169] <... futex resumed>)        = 0
[pid 12170] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12169] exit_group(0)               = ?
[pid 12170] <... futex resumed>)        = ?
[pid 12170] +++ exited with 0 +++
[pid 12169] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12169, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12171
./strace-static-x86_64: Process 12171 attached
[pid 12171] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12171] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12171] setpgid(0, 0)               = 0
[pid 12171] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12171] write(3, "1000", 4)         = 4
[pid 12171] close(3)                    = 0
[pid 12171] write(1, "executing program\n", 18executing program
) = 18
[pid 12171] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12171] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12171] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12171] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12171] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12171] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12171] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12172 attached
 => {parent_tid=[12172]}, 88) = 12172
[pid 12172] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12172] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12172] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12171] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12171] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12172] <... futex resumed>)        = 0
[pid 12171] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12172] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12172] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12172] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12171] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12171] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12172] <... futex resumed>)        = 0
[pid 12172] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12171] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12172] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12172] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12171] <... futex resumed>)        = 0
[pid 12171] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12171] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12172] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12172] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12171] <... futex resumed>)        = 0
[pid 12171] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12171] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12172] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12172] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12171] <... futex resumed>)        = 0
[pid 12171] exit_group(0)               = ?
[pid 12172] +++ exited with 0 +++
[pid 12171] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12171, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12173
./strace-static-x86_64: Process 12173 attached
[pid 12173] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12173] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12173] setpgid(0, 0)               = 0
[pid 12173] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12173] write(3, "1000", 4executing program
)         = 4
[pid 12173] close(3)                    = 0
[pid 12173] write(1, "executing program\n", 18) = 18
[pid 12173] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12173] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12173] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12173] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12173] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12173] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12173] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12174 attached
 => {parent_tid=[12174]}, 88) = 12174
[pid 12174] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12174] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12174] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12173] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12173] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12174] <... futex resumed>)        = 0
[pid 12174] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12173] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12174] <... 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 12174] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12173] <... futex resumed>)        = 0
[pid 12173] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12173] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12174] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12174] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12173] <... futex resumed>)        = 0
[pid 12173] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12173] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12174] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12174] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12173] <... futex resumed>)        = 0
[pid 12173] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12173] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12174] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12174] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12173] <... futex resumed>)        = 0
[pid 12173] exit_group(0)               = ?
[pid 12174] +++ exited with 0 +++
[pid 12173] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12173, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12175
./strace-static-x86_64: Process 12175 attached
[pid 12175] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12175] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12175] setpgid(0, 0)               = 0
[pid 12175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12175] write(3, "1000", 4)         = 4
[pid 12175] close(3)                    = 0
[pid 12175] write(1, "executing program\n", 18executing program
) = 18
[pid 12175] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12175] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12175] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12175] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12175] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12175] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12175] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12176 attached
 => {parent_tid=[12176]}, 88) = 12176
[pid 12176] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12176] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12176] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12175] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12175] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12176] <... futex resumed>)        = 0
[pid 12175] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12176] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12176] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12176] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12175] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12175] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12176] <... futex resumed>)        = 0
[pid 12176] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12176] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12176] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12175] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12175] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12176] <... futex resumed>)        = 0
[pid 12176] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12176] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12176] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12175] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12175] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12176] <... futex resumed>)        = 0
[pid 12176] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12175] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12176] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12176] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12175] <... futex resumed>)        = 0
[pid 12176] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12175] exit_group(0)               = ?
[pid 12176] <... futex resumed>)        = ?
[pid 12176] +++ exited with 0 +++
[pid 12175] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12175, 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=0x55558842d690) = 12177
./strace-static-x86_64: Process 12177 attached
[pid 12177] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12177] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12177] setpgid(0, 0)               = 0
[pid 12177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12177] write(3, "1000", 4)         = 4
[pid 12177] close(3)                    = 0
[pid 12177] write(1, "executing program\n", 18executing program
) = 18
[pid 12177] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12177] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12177] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12177] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12177] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12177] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12177] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12178 attached
 => {parent_tid=[12178]}, 88) = 12178
[pid 12178] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12178] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12178] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12177] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12177] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12178] <... futex resumed>)        = 0
[pid 12178] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12178] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12178] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12177] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12177] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12178] <... futex resumed>)        = 0
[pid 12178] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12178] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12178] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12177] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12177] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12178] <... futex resumed>)        = 0
[pid 12178] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12178] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12178] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12177] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12177] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12178] <... futex resumed>)        = 0
[pid 12178] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12178] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12178] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12177] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12177] exit_group(0)               = ?
[pid 12178] <... futex resumed>)        = ?
[pid 12178] +++ exited with 0 +++
[pid 12177] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12177, si_uid=0, si_status=0, 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 12179 attached
, child_tidptr=0x55558842d690) = 12179
[pid 12179] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12179] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12179] setpgid(0, 0)               = 0
[pid 12179] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12179] write(3, "1000", 4)         = 4
[pid 12179] close(3)                    = 0
executing program
[pid 12179] write(1, "executing program\n", 18) = 18
[pid 12179] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12179] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12179] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12179] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12179] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12179] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12179] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12180]}, 88) = 12180
[pid 12179] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12179] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12179] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12180 attached
 <unfinished ...>
[pid 12180] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12180] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12180] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12180] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12179] <... futex resumed>)        = 0
[pid 12179] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12179] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12180] <... futex resumed>)        = 1
[pid 12180] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12180] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12179] <... futex resumed>)        = 0
[pid 12179] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12179] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12180] <... futex resumed>)        = 1
[pid 12180] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12180] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12179] <... futex resumed>)        = 0
[pid 12179] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12179] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12180] <... futex resumed>)        = 1
[pid 12180] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12180] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12179] <... futex resumed>)        = 0
[pid 12179] exit_group(0)               = ?
[pid 12180] <... futex resumed>)        = ?
[pid 12180] +++ exited with 0 +++
[pid 12179] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12179, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12181
./strace-static-x86_64: Process 12181 attached
[pid 12181] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12181] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12181] setpgid(0, 0)               = 0
[pid 12181] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12181] write(3, "1000", 4)         = 4
[pid 12181] close(3)                    = 0
[pid 12181] write(1, "executing program\n", 18executing program
) = 18
[pid 12181] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12181] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12181] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12181] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12181] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12181] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12181] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12182 attached
 => {parent_tid=[12182]}, 88) = 12182
[pid 12182] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12182] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12182] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12181] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12181] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12182] <... futex resumed>)        = 0
[pid 12182] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12181] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12182] <... 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 12182] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12182] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12181] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12181] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12182] <... futex resumed>)        = 0
[pid 12182] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12182] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12182] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12181] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12181] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12182] <... futex resumed>)        = 0
[pid 12182] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12181] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12182] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12182] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12182] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12181] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12181] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12182] <... futex resumed>)        = 0
[pid 12181] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12182] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12182] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12182] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12181] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12181] exit_group(0)               = ?
[pid 12182] <... futex resumed>)        = ?
[pid 12182] +++ exited with 0 +++
[pid 12181] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12181, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12183
./strace-static-x86_64: Process 12183 attached
[pid 12183] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12183] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12183] setpgid(0, 0)               = 0
[pid 12183] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12183] write(3, "1000", 4)         = 4
[pid 12183] close(3)                    = 0
[pid 12183] write(1, "executing program\n", 18executing program
) = 18
[pid 12183] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12183] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12183] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12183] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12183] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12183] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12183] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12184 attached
 => {parent_tid=[12184]}, 88) = 12184
[pid 12184] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12184] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12184] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12183] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12183] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12184] <... futex resumed>)        = 0
[pid 12184] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12183] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12184] <... 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 12184] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12184] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12183] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12183] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12184] <... futex resumed>)        = 0
[pid 12184] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12184] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12184] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12183] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12183] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12184] <... futex resumed>)        = 0
[pid 12184] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12184] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12184] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12183] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12183] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12184] <... futex resumed>)        = 0
[pid 12184] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12184] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12184] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12183] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12183] exit_group(0)               = ?
[pid 12184] <... futex resumed>)        = ?
[pid 12184] +++ exited with 0 +++
[pid 12183] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12183, 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=0x55558842d690) = 12185
./strace-static-x86_64: Process 12185 attached
[pid 12185] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12185] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12185] setpgid(0, 0)               = 0
[pid 12185] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12185] write(3, "1000", 4)         = 4
[pid 12185] close(3)                    = 0
[pid 12185] write(1, "executing program\n", 18executing program
) = 18
[pid 12185] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12185] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12185] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12185] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12185] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12185] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12185] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12186 attached
 <unfinished ...>
[pid 12186] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12186] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12185] <... clone3 resumed> => {parent_tid=[12186]}, 88) = 12186
[pid 12186] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12186] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12185] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12185] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12186] <... futex resumed>)        = 0
[pid 12186] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12186] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12186] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12185] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12185] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12186] <... futex resumed>)        = 0
[pid 12186] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12186] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12186] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12185] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12185] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12186] <... futex resumed>)        = 0
[pid 12186] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12186] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12186] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12185] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12185] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12186] <... futex resumed>)        = 0
[pid 12186] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12186] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12186] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12185] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12185] exit_group(0)               = ?
[pid 12186] <... futex resumed>)        = ?
[pid 12186] +++ exited with 0 +++
[pid 12185] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12185, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12187
./strace-static-x86_64: Process 12187 attached
[pid 12187] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12187] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12187] setpgid(0, 0)               = 0
[pid 12187] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12187] write(3, "1000", 4)         = 4
[pid 12187] close(3)                    = 0
[pid 12187] write(1, "executing program\n", 18executing program
) = 18
[pid 12187] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12187] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12187] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12187] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12187] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12187] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12187] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12188 attached
 => {parent_tid=[12188]}, 88) = 12188
[pid 12188] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12188] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12188] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12187] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12187] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12188] <... futex resumed>)        = 0
[pid 12188] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12188] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12188] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12187] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12187] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12188] <... futex resumed>)        = 0
[pid 12188] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12188] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12188] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12187] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12187] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12188] <... futex resumed>)        = 0
[pid 12188] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12188] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12188] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12187] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12187] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12188] <... futex resumed>)        = 0
[pid 12188] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12188] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12188] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12187] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12187] exit_group(0)               = ?
[pid 12188] <... futex resumed>)        = ?
[pid 12188] +++ exited with 0 +++
[pid 12187] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12187, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12189
./strace-static-x86_64: Process 12189 attached
[pid 12189] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12189] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12189] setpgid(0, 0)               = 0
[pid 12189] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12189] write(3, "1000", 4)         = 4
[pid 12189] close(3)                    = 0
[pid 12189] write(1, "executing program\n", 18executing program
) = 18
[pid 12189] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12189] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12189] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12189] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12189] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12189] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12189] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12190]}, 88) = 12190
[pid 12189] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12189] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12189] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12190 attached
 <unfinished ...>
[pid 12190] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12190] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12190] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12189] <... futex resumed>)        = 0
[pid 12189] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12189] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12190] <... futex resumed>)        = 1
[pid 12190] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12190] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12189] <... futex resumed>)        = 0
[pid 12189] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12189] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12190] <... futex resumed>)        = 1
[pid 12190] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12190] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12189] <... futex resumed>)        = 0
[pid 12189] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12189] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12190] <... futex resumed>)        = 1
[pid 12190] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12190] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12189] <... futex resumed>)        = 0
[pid 12189] exit_group(0)               = ?
[pid 12190] <... futex resumed>)        = ?
[pid 12190] +++ exited with 0 +++
[pid 12189] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12189, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12191
./strace-static-x86_64: Process 12191 attached
[pid 12191] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12191] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12191] setpgid(0, 0)               = 0
[pid 12191] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12191] write(3, "1000", 4executing program
)         = 4
[pid 12191] close(3)                    = 0
[pid 12191] write(1, "executing program\n", 18) = 18
[pid 12191] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12191] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12191] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12191] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12191] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12191] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12191] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12192 attached
 => {parent_tid=[12192]}, 88) = 12192
[pid 12191] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12191] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12191] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12192] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12192] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12192] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12192] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12191] <... futex resumed>)        = 0
[pid 12191] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12191] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12192] <... futex resumed>)        = 1
[pid 12192] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12192] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12191] <... futex resumed>)        = 0
[pid 12191] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12191] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12192] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12192] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12191] <... futex resumed>)        = 0
[pid 12191] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12191] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12192] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12192] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12191] <... futex resumed>)        = 0
[pid 12191] exit_group(0)               = ?
[pid 12192] +++ exited with 0 +++
[pid 12191] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12191, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12193
./strace-static-x86_64: Process 12193 attached
[pid 12193] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12193] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12193] setpgid(0, 0)               = 0
[pid 12193] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12193] write(3, "1000", 4)         = 4
[pid 12193] close(3)                    = 0
[pid 12193] write(1, "executing program\n", 18executing program
) = 18
[pid 12193] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12193] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12193] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12193] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12193] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12193] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12193] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12194 attached
 => {parent_tid=[12194]}, 88) = 12194
[pid 12194] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12194] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12194] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12193] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12193] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12194] <... futex resumed>)        = 0
[pid 12193] <... futex resumed>)        = 1
[pid 12194] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12194] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12194] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12193] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12193] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12194] <... futex resumed>)        = 0
[pid 12194] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12194] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12194] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12193] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12193] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12194] <... futex resumed>)        = 0
[pid 12194] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12194] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12194] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12193] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12193] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12194] <... futex resumed>)        = 0
[pid 12194] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12193] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12194] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12194] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12194] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12193] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12193] exit_group(0)               = ?
[pid 12194] <... futex resumed>)        = ?
[pid 12194] +++ exited with 0 +++
[pid 12193] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12193, si_uid=0, si_status=0, 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 12195 attached
, child_tidptr=0x55558842d690) = 12195
[pid 12195] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12195] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12195] setpgid(0, 0)               = 0
[pid 12195] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12195] write(3, "1000", 4)         = 4
[pid 12195] close(3)                    = 0
[pid 12195] write(1, "executing program\n", 18executing program
) = 18
[pid 12195] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12195] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12195] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12195] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12195] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12195] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12195] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12196 attached
 <unfinished ...>
[pid 12196] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12196] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12196] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12195] <... clone3 resumed> => {parent_tid=[12196]}, 88) = 12196
[pid 12195] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12195] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12196] <... futex resumed>)        = 0
[pid 12196] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12196] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12196] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12195] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12195] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12196] <... futex resumed>)        = 0
[pid 12196] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12196] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12196] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12195] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12195] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12196] <... futex resumed>)        = 0
[pid 12196] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12196] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12196] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12195] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12195] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12196] <... futex resumed>)        = 0
[pid 12196] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12196] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12196] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12195] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12195] exit_group(0)               = ?
[pid 12196] <... futex resumed>)        = ?
[pid 12196] +++ exited with 0 +++
[pid 12195] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12195, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12197
./strace-static-x86_64: Process 12197 attached
[pid 12197] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12197] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12197] setpgid(0, 0)               = 0
[pid 12197] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12197] write(3, "1000", 4)         = 4
[pid 12197] close(3)                    = 0
[pid 12197] write(1, "executing program\n", 18executing program
) = 18
[pid 12197] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12197] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12197] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12197] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12197] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12197] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12197] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12198]}, 88) = 12198
[pid 12197] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12197] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12197] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12198 attached
 <unfinished ...>
[pid 12198] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12198] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12198] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12198] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12197] <... futex resumed>)        = 0
[pid 12197] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12197] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12198] <... futex resumed>)        = 1
[pid 12198] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12198] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12197] <... futex resumed>)        = 0
[pid 12197] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12197] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12198] <... futex resumed>)        = 1
[pid 12198] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12198] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12197] <... futex resumed>)        = 0
[pid 12197] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12197] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12198] <... futex resumed>)        = 1
[pid 12198] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12198] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12197] <... futex resumed>)        = 0
[pid 12197] exit_group(0)               = ?
[pid 12198] <... futex resumed>)        = ?
[pid 12198] +++ exited with 0 +++
[pid 12197] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12197, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12199
./strace-static-x86_64: Process 12199 attached
[pid 12199] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12199] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12199] setpgid(0, 0)               = 0
[pid 12199] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12199] write(3, "1000", 4)         = 4
[pid 12199] close(3)                    = 0
[pid 12199] write(1, "executing program\n", 18executing program
) = 18
[pid 12199] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12199] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12199] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12199] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12199] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12199] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12199] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12200 attached
 => {parent_tid=[12200]}, 88) = 12200
[pid 12200] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12200] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12200] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12199] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12199] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12200] <... futex resumed>)        = 0
[pid 12200] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12200] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12200] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12199] <... futex resumed>)        = 1
[pid 12199] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12199] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12200] <... futex resumed>)        = 0
[pid 12200] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12200] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12200] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12199] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12199] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12200] <... futex resumed>)        = 0
[pid 12200] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12200] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12200] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12199] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12199] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12200] <... futex resumed>)        = 0
[pid 12200] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12199] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12200] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12200] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12199] <... futex resumed>)        = 0
[pid 12199] exit_group(0)               = ?
[pid 12200] +++ exited with 0 +++
[pid 12199] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12199, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12201
./strace-static-x86_64: Process 12201 attached
[pid 12201] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12201] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12201] setpgid(0, 0)               = 0
[pid 12201] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12201] write(3, "1000", 4)         = 4
[pid 12201] close(3)                    = 0
[pid 12201] write(1, "executing program\n", 18executing program
) = 18
[pid 12201] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12201] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12201] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12201] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12201] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12201] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12201] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12202]}, 88) = 12202
[pid 12201] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12201] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12201] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12202 attached
 <unfinished ...>
[pid 12202] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12202] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12202] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12202] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12201] <... futex resumed>)        = 0
[pid 12201] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12201] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12202] <... futex resumed>)        = 1
[pid 12202] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12202] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12201] <... futex resumed>)        = 0
[pid 12201] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12201] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12202] <... futex resumed>)        = 1
[pid 12202] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12202] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12201] <... futex resumed>)        = 0
[pid 12201] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12202] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12201] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12202] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12202] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12201] <... futex resumed>)        = 0
[pid 12201] exit_group(0)               = ?
[pid 12202] +++ exited with 0 +++
[pid 12201] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12201, si_uid=0, si_status=0, 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 12203 attached
, child_tidptr=0x55558842d690) = 12203
[pid 12203] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12203] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12203] setpgid(0, 0)               = 0
[pid 12203] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12203] write(3, "1000", 4)         = 4
[pid 12203] close(3)                    = 0
[pid 12203] write(1, "executing program\n", 18executing program
) = 18
[pid 12203] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12203] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12203] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12203] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12203] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12203] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12203] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12204 attached
 => {parent_tid=[12204]}, 88) = 12204
[pid 12204] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12204] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12204] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12203] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12203] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12204] <... futex resumed>)        = 0
[pid 12204] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12204] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12204] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12203] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12203] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12204] <... futex resumed>)        = 0
[pid 12204] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12204] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12204] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12203] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12203] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12204] <... futex resumed>)        = 0
[pid 12204] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12203] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12204] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12204] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12203] <... futex resumed>)        = 0
[pid 12203] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12203] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12204] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12204] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12203] <... futex resumed>)        = 0
[pid 12203] exit_group(0)               = ?
[pid 12204] +++ exited with 0 +++
[pid 12203] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12203, si_uid=0, si_status=0, 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 12205 attached
 <unfinished ...>
[pid 12205] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12205] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12205] setpgid(0, 0)               = 0
[pid 12205] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   555] <... clone resumed>, child_tidptr=0x55558842d690) = 12205
[pid 12205] <... openat resumed>)       = 3
[pid 12205] write(3, "1000", 4)         = 4
[pid 12205] close(3)                    = 0
executing program
[pid 12205] write(1, "executing program\n", 18) = 18
[pid 12205] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12205] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12205] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12205] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12205] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12205] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12205] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12206]}, 88) = 12206
./strace-static-x86_64: Process 12206 attached
[pid 12205] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12205] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12205] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12206] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12206] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12206] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12206] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12205] <... futex resumed>)        = 0
[pid 12205] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12205] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12206] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12206] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12205] <... futex resumed>)        = 0
[pid 12205] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12205] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12206] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12206] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12205] <... futex resumed>)        = 0
[pid 12205] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12205] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12206] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12206] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12205] <... futex resumed>)        = 0
[pid 12205] exit_group(0)               = ?
[pid 12206] +++ exited with 0 +++
[pid 12205] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12205, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12207
./strace-static-x86_64: Process 12207 attached
[pid 12207] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12207] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12207] setpgid(0, 0)               = 0
[pid 12207] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12207] write(3, "1000", 4)         = 4
[pid 12207] close(3)                    = 0
[pid 12207] write(1, "executing program\n", 18executing program
) = 18
[pid 12207] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12207] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12207] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12207] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12207] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12207] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12207] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12208 attached
 <unfinished ...>
[pid 12208] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12208] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12208] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12207] <... clone3 resumed> => {parent_tid=[12208]}, 88) = 12208
[pid 12207] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12207] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12208] <... futex resumed>)        = 0
[pid 12208] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12208] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12208] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12207] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12207] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12208] <... futex resumed>)        = 0
[pid 12208] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12208] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12208] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12207] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12207] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12208] <... futex resumed>)        = 0
[pid 12208] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12208] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12208] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12207] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12207] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12208] <... futex resumed>)        = 0
[pid 12208] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12208] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12208] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12207] <... futex resumed>)        = 1
[pid 12207] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12207] exit_group(0)               = ?
[pid 12208] <... futex resumed>)        = ?
[pid 12208] +++ exited with 0 +++
[pid 12207] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12207, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12209
./strace-static-x86_64: Process 12209 attached
[pid 12209] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12209] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12209] setpgid(0, 0)               = 0
[pid 12209] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12209] write(3, "1000", 4)         = 4
[pid 12209] close(3)                    = 0
[pid 12209] write(1, "executing program\n", 18executing program
) = 18
[pid 12209] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12209] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12209] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12209] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12209] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12209] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12209] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12210 attached
 => {parent_tid=[12210]}, 88) = 12210
[pid 12210] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12210] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12210] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12209] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12209] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12210] <... futex resumed>)        = 0
[pid 12210] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12210] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12210] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12209] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12209] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12210] <... futex resumed>)        = 0
[pid 12210] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12210] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12210] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12209] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12209] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12210] <... futex resumed>)        = 0
[pid 12210] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12210] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12210] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12209] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12209] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12210] <... futex resumed>)        = 0
[pid 12210] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12210] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12210] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12209] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12209] exit_group(0)               = ?
[pid 12210] <... futex resumed>)        = ?
[pid 12210] +++ exited with 0 +++
[pid 12209] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12209, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12211
./strace-static-x86_64: Process 12211 attached
[pid 12211] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12211] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12211] setpgid(0, 0)               = 0
[pid 12211] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12211] write(3, "1000", 4)         = 4
[pid 12211] close(3)                    = 0
[pid 12211] write(1, "executing program\n", 18executing program
) = 18
[pid 12211] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12211] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12211] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12211] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12211] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12211] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12211] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12212 attached
 <unfinished ...>
[pid 12212] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12211] <... clone3 resumed> => {parent_tid=[12212]}, 88) = 12212
[pid 12212] <... set_robust_list resumed>) = 0
[pid 12211] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12212] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12211] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12212] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12211] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12212] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12211] <... futex resumed>)        = 0
[pid 12212] <... 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 12212] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12212] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12211] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12211] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12212] <... futex resumed>)        = 0
[pid 12212] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12211] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12212] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12212] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12212] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12211] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12211] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12212] <... futex resumed>)        = 0
[pid 12212] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12211] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12212] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12212] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12212] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12211] <... futex resumed>)        = 0
[pid 12211] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12212] <... futex resumed>)        = 0
[pid 12212] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12211] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12212] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12212] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12212] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12211] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12211] exit_group(0)               = ?
[pid 12212] <... futex resumed>)        = ?
[pid 12212] +++ exited with 0 +++
[pid 12211] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12211, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12213
./strace-static-x86_64: Process 12213 attached
[pid 12213] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12213] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12213] setpgid(0, 0)               = 0
[pid 12213] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12213] write(3, "1000", 4)         = 4
[pid 12213] close(3)                    = 0
[pid 12213] write(1, "executing program\n", 18executing program
) = 18
[pid 12213] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12213] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12213] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12213] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12213] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12213] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12213] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12214]}, 88) = 12214
[pid 12213] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12213] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12213] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12214 attached
 <unfinished ...>
[pid 12214] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12214] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12214] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12214] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12213] <... futex resumed>)        = 0
[pid 12213] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12213] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12214] <... futex resumed>)        = 1
[pid 12214] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12214] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12213] <... futex resumed>)        = 0
[pid 12213] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12213] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12214] <... futex resumed>)        = 1
[pid 12214] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12214] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12213] <... futex resumed>)        = 0
[pid 12213] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12213] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12214] <... futex resumed>)        = 1
[pid 12214] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12214] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12213] <... futex resumed>)        = 0
[pid 12213] exit_group(0)               = ?
[pid 12214] <... futex resumed>)        = ?
[pid 12214] +++ exited with 0 +++
[pid 12213] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12213, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12215
./strace-static-x86_64: Process 12215 attached
[pid 12215] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12215] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12215] setpgid(0, 0)               = 0
[pid 12215] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12215] write(3, "1000", 4)         = 4
[pid 12215] close(3)                    = 0
[pid 12215] write(1, "executing program\n", 18executing program
) = 18
[pid 12215] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12215] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12215] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12215] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12215] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12215] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12215] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12216 attached
 => {parent_tid=[12216]}, 88) = 12216
[pid 12216] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12215] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12216] <... set_robust_list resumed>) = 0
[pid 12215] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12216] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12215] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12216] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12215] <... futex resumed>)        = 0
[pid 12215] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12216] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12216] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12215] <... futex resumed>)        = 0
[pid 12216] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12215] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12216] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12215] <... futex resumed>)        = 0
[pid 12216] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12215] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12216] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12216] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12215] <... futex resumed>)        = 0
[pid 12216] <... futex resumed>)        = 1
[pid 12215] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12216] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12215] <... futex resumed>)        = 0
[pid 12215] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12216] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12216] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12215] <... futex resumed>)        = 0
[pid 12215] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12215] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12216] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12216] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12215] <... futex resumed>)        = 0
[pid 12215] exit_group(0)               = ?
[pid 12216] +++ exited with 0 +++
[pid 12215] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12215, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12217
./strace-static-x86_64: Process 12217 attached
[pid 12217] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12217] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12217] setpgid(0, 0)               = 0
[pid 12217] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12217] write(3, "1000", 4)         = 4
[pid 12217] close(3)                    = 0
[pid 12217] write(1, "executing program\n", 18executing program
) = 18
[pid 12217] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12217] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12217] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12217] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12217] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12217] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12217] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12218 attached
 => {parent_tid=[12218]}, 88) = 12218
[pid 12217] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12217] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12217] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12218] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12218] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12218] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12218] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12217] <... futex resumed>)        = 0
[pid 12217] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12217] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12218] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12218] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12217] <... futex resumed>)        = 0
[pid 12217] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12218] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12217] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12218] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12218] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12217] <... futex resumed>)        = 0
[pid 12217] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12217] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12218] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12218] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12217] <... futex resumed>)        = 0
[pid 12217] exit_group(0)               = ?
[pid 12218] +++ exited with 0 +++
[pid 12217] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12217, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12219
./strace-static-x86_64: Process 12219 attached
[pid 12219] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12219] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12219] setpgid(0, 0)               = 0
[pid 12219] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12219] write(3, "1000", 4)         = 4
[pid 12219] close(3)                    = 0
[pid 12219] write(1, "executing program\n", 18executing program
) = 18
[pid 12219] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12219] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12219] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12219] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12219] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12219] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12219] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12220 attached
 => {parent_tid=[12220]}, 88) = 12220
[pid 12220] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12220] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12220] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12219] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12219] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12220] <... futex resumed>)        = 0
[pid 12220] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12220] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12220] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12219] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12219] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12220] <... futex resumed>)        = 0
[pid 12220] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12220] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12220] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12219] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12219] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12220] <... futex resumed>)        = 0
[pid 12220] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12220] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12220] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12219] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12219] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12220] <... futex resumed>)        = 0
[pid 12220] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12219] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12220] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12220] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12219] <... futex resumed>)        = 0
[pid 12219] exit_group(0)               = ?
[pid 12220] +++ exited with 0 +++
[pid 12219] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12219, si_uid=0, si_status=0, 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 12221 attached
, child_tidptr=0x55558842d690) = 12221
[pid 12221] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12221] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12221] setpgid(0, 0)               = 0
[pid 12221] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12221] write(3, "1000", 4)         = 4
[pid 12221] close(3executing program
)                    = 0
[pid 12221] write(1, "executing program\n", 18) = 18
[pid 12221] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12221] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12221] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12221] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12221] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12221] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12221] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12222 attached
 <unfinished ...>
[pid 12222] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12221] <... clone3 resumed> => {parent_tid=[12222]}, 88) = 12222
[pid 12221] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12222] <... set_robust_list resumed>) = 0
[pid 12221] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12222] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12221] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12222] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12222] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12221] <... futex resumed>)        = 0
[pid 12221] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12222] <... 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 12222] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12221] <... futex resumed>)        = 0
[pid 12221] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12221] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12222] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12222] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12221] <... futex resumed>)        = 0
[pid 12221] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12221] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12222] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12222] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12221] <... futex resumed>)        = 0
[pid 12221] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12221] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12222] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12222] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12221] <... futex resumed>)        = 0
[pid 12222] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12221] exit_group(0)               = ?
[pid 12222] <... futex resumed>)        = ?
[pid 12222] +++ exited with 0 +++
[pid 12221] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12221, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12224
./strace-static-x86_64: Process 12224 attached
[pid 12224] set_robust_list(0x55558842d6a0, 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
executing program
[pid 12224] close(3)                    = 0
[pid 12224] write(1, "executing program\n", 18) = 18
[pid 12224] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12224] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12224] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12225 attached
 <unfinished ...>
[pid 12225] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12224] <... clone3 resumed> => {parent_tid=[12225]}, 88) = 12225
[pid 12225] <... set_robust_list resumed>) = 0
[pid 12225] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12225] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12224] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12224] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12225] <... futex resumed>)        = 0
[pid 12224] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12225] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12224] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12224] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12225] <... futex resumed>)        = 0
[pid 12225] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12225] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12225] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12224] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12224] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12225] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12225] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12224] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12224] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12225] <... futex resumed>)        = 0
[pid 12225] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12224] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12225] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12225] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12224] <... futex resumed>)        = 0
[pid 12224] exit_group(0)               = ?
[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, child_tidptr=0x55558842d690) = 12226
./strace-static-x86_64: Process 12226 attached
[pid 12226] set_robust_list(0x55558842d6a0, 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
[pid 12226] write(1, "executing program\n", 18executing program
) = 18
[pid 12226] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12226] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12226] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12227 attached
 => {parent_tid=[12227]}, 88) = 12227
[pid 12227] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12227] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12227] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12226] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12226] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12227] <... futex resumed>)        = 0
[pid 12227] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12226] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12227] <... 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 12227] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12226] <... futex resumed>)        = 0
[pid 12226] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12226] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12226] <... futex resumed>)        = 0
[pid 12226] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12226] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12226] <... futex resumed>)        = 0
[pid 12226] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12226] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12226] <... futex resumed>)        = 0
[pid 12227] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12226] exit_group(0)               = ?
[pid 12227] <... futex resumed>)        = ?
[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=0x55558842d690) = 12228
./strace-static-x86_64: Process 12228 attached
[pid 12228] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12228] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12228] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12229]}, 88) = 12229
[pid 12228] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12228] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12228] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12229 attached
 <unfinished ...>
[pid 12229] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12229] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12229] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12228] <... futex resumed>)        = 0
[pid 12228] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12228] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12229] <... futex resumed>)        = 1
[pid 12229] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12229] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12228] <... futex resumed>)        = 0
[pid 12228] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12228] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12229] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12228] <... futex resumed>)        = 0
[pid 12228] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12228] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12229] <... futex resumed>)        = 1
[pid 12229] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12229] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12228] <... futex resumed>)        = 0
[pid 12228] exit_group(0)               = ?
[pid 12229] <... futex resumed>)        = ?
[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, child_tidptr=0x55558842d690) = 12230
./strace-static-x86_64: Process 12230 attached
[pid 12230] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12230] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12230] setpgid(0, 0)               = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12230] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12230] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12231 attached
 => {parent_tid=[12231]}, 88) = 12231
[pid 12230] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12230] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12230] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12231] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12230] <... futex resumed>)        = 0
[pid 12230] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12230] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12230] <... futex resumed>)        = 0
[pid 12230] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12230] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12230] <... futex resumed>)        = 0
[pid 12230] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12230] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12230] <... futex resumed>)        = 0
[pid 12230] exit_group(0)               = ?
[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=0x55558842d690) = 12232
./strace-static-x86_64: Process 12232 attached
[pid 12232] set_robust_list(0x55558842d6a0, 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
[pid 12232] write(1, "executing program\n", 18executing program
) = 18
[pid 12232] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12232] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12232] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12233 attached
 <unfinished ...>
[pid 12233] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12232] <... clone3 resumed> => {parent_tid=[12233]}, 88) = 12233
[pid 12232] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12233] <... set_robust_list resumed>) = 0
[pid 12232] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12233] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12232] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12233] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12232] <... futex resumed>)        = 0
[pid 12233] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12232] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12233] <... 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 12233] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12232] <... futex resumed>)        = 0
[pid 12232] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12232] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12233] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12233] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12232] <... futex resumed>)        = 0
[pid 12232] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12232] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12232] <... futex resumed>)        = 0
[pid 12232] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12232] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12232] <... futex resumed>)        = 0
[pid 12233] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12232] exit_group(0)               = ?
[pid 12233] <... futex resumed>)        = ?
[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=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12234
./strace-static-x86_64: Process 12234 attached
[pid 12234] set_robust_list(0x55558842d6a0, 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
executing program
[pid 12234] write(1, "executing program\n", 18) = 18
[pid 12234] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12234] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12234] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12235]}, 88) = 12235
[pid 12234] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12234] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12234] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12235 attached
 <unfinished ...>
[pid 12235] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12235] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12234] <... futex resumed>)        = 0
[pid 12234] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12234] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12235] <... futex resumed>)        = 1
[pid 12235] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12235] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12234] <... futex resumed>)        = 0
[pid 12234] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12234] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12235] <... futex resumed>)        = 1
[pid 12235] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12235] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12234] <... futex resumed>)        = 0
[pid 12234] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12234] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12235] <... futex resumed>)        = 1
[pid 12235] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12235] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12234] <... futex resumed>)        = 0
[pid 12234] exit_group(0)               = ?
[pid 12235] <... futex 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=0x55558842d690) = 12236
./strace-static-x86_64: Process 12236 attached
[pid 12236] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12236] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12236] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12237 attached
 => {parent_tid=[12237]}, 88) = 12237
[pid 12236] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12236] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12236] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12237] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12236] <... futex resumed>)        = 0
[pid 12236] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12236] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12237] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12237] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12236] <... futex resumed>)        = 0
[pid 12236] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12237] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12236] <... futex resumed>)        = 0
[pid 12236] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12237] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12237] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12236] <... futex resumed>)        = 0
[pid 12236] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12236] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12237] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12237] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12236] <... futex resumed>)        = 0
[pid 12236] exit_group(0)               = ?
[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, child_tidptr=0x55558842d690) = 12238
./strace-static-x86_64: Process 12238 attached
[pid 12238] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12238] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12238] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12239 attached
 => {parent_tid=[12239]}, 88) = 12239
[pid 12239] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12239] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12239] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12238] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12238] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12239] <... futex resumed>)        = 0
[pid 12238] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12239] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12239] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12238] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12238] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12239] <... futex resumed>)        = 0
[pid 12239] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12239] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12239] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12238] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12238] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12239] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12239] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12238] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12238] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12239] <... futex resumed>)        = 0
[pid 12238] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12239] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12238] <... futex resumed>)        = 0
[pid 12238] exit_group(0)               = ?
[pid 12239] <... futex resumed>)        = ?
[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, child_tidptr=0x55558842d690) = 12240
./strace-static-x86_64: Process 12240 attached
[pid 12240] set_robust_list(0x55558842d6a0, 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
[pid 12240] write(1, "executing program\n", 18executing program
) = 18
[pid 12240] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12240] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12240] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12241 attached
 <unfinished ...>
[pid 12241] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12241] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12241] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12240] <... clone3 resumed> => {parent_tid=[12241]}, 88) = 12241
[pid 12240] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12240] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12241] <... futex resumed>)        = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12240] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12241] <... futex resumed>)        = 0
[pid 12241] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12240] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12240] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12241] <... futex resumed>)        = 0
[pid 12241] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12241] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12241] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12240] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12240] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12241] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12241] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12240] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12240] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12241] <... futex resumed>)        = 0
[pid 12240] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12240] <... futex resumed>)        = 0
[pid 12241] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12240] exit_group(0)               = ?
[pid 12241] <... futex resumed>)        = ?
[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, child_tidptr=0x55558842d690) = 12242
./strace-static-x86_64: Process 12242 attached
[pid 12242] set_robust_list(0x55558842d6a0, 24) = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12242] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12242] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12243 attached
 => {parent_tid=[12243]}, 88) = 12243
[pid 12243] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12242] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12243] <... set_robust_list resumed>) = 0
[pid 12242] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12243] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12242] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12243] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12242] <... futex resumed>)        = 0
[pid 12242] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12243] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12242] <... futex resumed>)        = 0
[pid 12242] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12242] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12242] <... futex resumed>)        = 0
[pid 12242] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12242] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12242] <... futex resumed>)        = 0
[pid 12242] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12242] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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=0x55558842d690) = 12244
./strace-static-x86_64: Process 12244 attached
[pid 12244] set_robust_list(0x55558842d6a0, 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
executing program
[pid 12244] close(3)                    = 0
[pid 12244] write(1, "executing program\n", 18) = 18
[pid 12244] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12244] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12244] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12245]}, 88) = 12245
[pid 12244] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12244] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12244] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12245 attached
 <unfinished ...>
[pid 12245] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12245] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12245] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12244] <... futex resumed>)        = 0
[pid 12244] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12244] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12245] <... futex resumed>)        = 1
[pid 12245] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12245] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12244] <... futex resumed>)        = 0
[pid 12244] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12244] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12245] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12244] <... futex resumed>)        = 0
[pid 12244] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12244] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12245] <... futex resumed>)        = 1
[pid 12245] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12245] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12244] <... futex resumed>)        = 0
[pid 12244] exit_group(0)               = ?
[pid 12245] <... futex 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./strace-static-x86_64: Process 12246 attached
 <unfinished ...>
[pid 12246] set_robust_list(0x55558842d6a0, 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 <unfinished ...>
[pid   555] <... clone resumed>, child_tidptr=0x55558842d690) = 12246
[pid 12246] <... openat resumed>)       = 3
[pid 12246] write(3, "1000", 4)         = 4
[pid 12246] close(3executing program
)                    = 0
[pid 12246] write(1, "executing program\n", 18) = 18
[pid 12246] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12246] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12246] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12247]}, 88) = 12247
[pid 12246] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12246] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12246] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12247 attached
 <unfinished ...>
[pid 12247] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12247] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12247] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12246] <... futex resumed>)        = 0
[pid 12246] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12246] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12247] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12247] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12246] <... futex resumed>)        = 0
[pid 12246] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12246] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12247] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12247] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12246] <... futex resumed>)        = 0
[pid 12246] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12246] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12247] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12247] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12247] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12246] <... futex resumed>)        = 0
[pid 12246] exit_group(0)               = ?
[pid 12247] <... futex 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./strace-static-x86_64: Process 12248 attached
, child_tidptr=0x55558842d690) = 12248
[pid 12248] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12248] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12248] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12249 attached
 => {parent_tid=[12249]}, 88) = 12249
[pid 12249] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12248] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12249] <... set_robust_list resumed>) = 0
[pid 12248] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12249] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12248] <... futex resumed>)        = 0
[pid 12249] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12248] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12248] <... futex resumed>)        = 0
[pid 12248] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12248] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12249] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12249] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12248] <... futex resumed>)        = 0
[pid 12248] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12248] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12249] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12249] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12248] <... futex resumed>)        = 0
[pid 12248] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12248] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12249] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12249] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12248] <... futex resumed>)        = 0
[pid 12248] exit_group(0)               = ?
[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./strace-static-x86_64: Process 12250 attached
, child_tidptr=0x55558842d690) = 12250
[pid 12250] set_robust_list(0x55558842d6a0, 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
executing program
[pid 12250] write(1, "executing program\n", 18) = 18
[pid 12250] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12250] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12250] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12251]}, 88) = 12251
[pid 12250] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12250] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12250] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12251 attached
 <unfinished ...>
[pid 12251] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12250] <... futex resumed>)        = 0
[pid 12251] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12250] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12251] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12250] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12251] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12250] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12251] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12250] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12251] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12250] <... futex resumed>)        = 0
[pid 12251] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12250] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12251] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12251] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12250] <... futex resumed>)        = 0
[pid 12250] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12250] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12251] <... futex resumed>)        = 1
[pid 12251] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12251] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12250] <... futex resumed>)        = 0
[pid 12250] exit_group(0 <unfinished ...>
[pid 12251] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12250] <... exit_group resumed>)   = ?
[pid 12251] <... futex 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, child_tidptr=0x55558842d690) = 12252
./strace-static-x86_64: Process 12252 attached
[pid 12252] set_robust_list(0x55558842d6a0, 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
[pid 12252] close(3)                    = 0
[pid 12252] write(1, "executing program\n", 18executing program
) = 18
[pid 12252] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12252] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12252] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12253 attached
 <unfinished ...>
[pid 12253] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12253] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12253] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12252] <... clone3 resumed> => {parent_tid=[12253]}, 88) = 12253
[pid 12252] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12252] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12253] <... futex resumed>)        = 0
[pid 12253] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12252] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12253] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12253] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12252] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12252] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12253] <... futex resumed>)        = 0
[pid 12252] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12253] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12253] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12252] <... futex resumed>)        = 0
[pid 12253] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12252] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12252] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12253] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12253] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12252] <... futex resumed>)        = 0
[pid 12252] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12252] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12253] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12253] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12252] <... futex resumed>)        = 0
[pid 12253] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12252] exit_group(0)               = ?
[pid 12253] <... futex 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, child_tidptr=0x55558842d690) = 12254
./strace-static-x86_64: Process 12254 attached
[pid 12254] set_robust_list(0x55558842d6a0, 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) = 3
[pid 12254] write(3, "1000", 4)         = 4
[pid 12254] close(3)                    = 0
[pid 12254] write(1, "executing program\n", 18executing program
) = 18
[pid 12254] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12254] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12254] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12255 attached
 => {parent_tid=[12255]}, 88) = 12255
[pid 12255] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12254] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12254] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12254] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12255] <... set_robust_list resumed>) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12254] <... futex resumed>)        = 0
[pid 12254] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12254] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12255] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12255] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12254] <... futex resumed>)        = 0
[pid 12254] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12255] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12254] <... futex resumed>)        = 0
[pid 12254] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12255] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12255] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12254] <... futex resumed>)        = 0
[pid 12254] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12254] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12255] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12255] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12254] <... futex resumed>)        = 0
[pid 12255] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12254] exit_group(0)               = ?
[pid 12255] <... futex 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./strace-static-x86_64: Process 12256 attached
, child_tidptr=0x55558842d690) = 12256
[pid 12256] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12256] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12256] setpgid(0, 0executing program
)               = 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
[pid 12256] write(1, "executing program\n", 18) = 18
[pid 12256] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12256] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12256] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12257 attached
 => {parent_tid=[12257]}, 88) = 12257
[pid 12257] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12257] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12257] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12256] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12256] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12257] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12256] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12256] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12257] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12256] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12256] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12257] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12257] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12256] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12256] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12257] <... futex resumed>)        = 0
[pid 12257] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12256] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12257] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12257] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12257] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12256] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[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=0x55558842d690) = 12258
[pid 12258] set_robust_list(0x55558842d6a0, 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
[pid 12258] write(1, "executing program\n", 18executing program
) = 18
[pid 12258] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12258] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12258] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12259 attached
 => {parent_tid=[12259]}, 88) = 12259
[pid 12259] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12259] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12259] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12258] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12258] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12259] <... futex resumed>)        = 0
[pid 12258] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12259] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12258] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12258] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12259] <... futex resumed>)        = 0
[pid 12259] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12259] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12259] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12258] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12258] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12259] <... futex resumed>)        = 0
[pid 12259] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12258] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12259] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12259] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12259] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12258] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12258] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12259] <... futex resumed>)        = 0
[pid 12259] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12258] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12259] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12259] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12259] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12258] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12258] exit_group(0)               = ?
[pid 12259] <... futex resumed>)        = ?
[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, child_tidptr=0x55558842d690) = 12260
./strace-static-x86_64: Process 12260 attached
[pid 12260] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12260] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12260] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12261 attached
 => {parent_tid=[12261]}, 88) = 12261
[pid 12261] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12261] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12261] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12260] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12260] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12261] <... futex resumed>)        = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12261] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12260] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12260] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12261] <... futex resumed>)        = 0
[pid 12261] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12260] <... futex resumed>)        = 1
[pid 12261] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12261] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12261] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12260] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12260] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12261] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12261] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12260] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12260] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12261] <... futex resumed>)        = 0
[pid 12261] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12261] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12261] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12260] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12260] exit_group(0)               = ?
[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=0x55558842d690) = 12262
./strace-static-x86_64: Process 12262 attached
[pid 12262] set_robust_list(0x55558842d6a0, 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
[pid 12262] write(1, "executing program\n", 18executing program
) = 18
[pid 12262] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12262] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12262] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12263 attached
 => {parent_tid=[12263]}, 88) = 12263
[pid 12263] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12263] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12263] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12262] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12262] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12263] <... futex resumed>)        = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12263] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12262] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12262] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12263] <... futex resumed>)        = 0
[pid 12263] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12263] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12263] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12262] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12262] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12263] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12263] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12262] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12262] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12263] <... futex resumed>)        = 0
[pid 12263] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12262] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12263] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12263] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12263] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12262] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[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=0x55558842d690) = 12264
./strace-static-x86_64: Process 12264 attached
[pid 12264] set_robust_list(0x55558842d6a0, 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
[pid 12264] write(1, "executing program\n", 18executing program
) = 18
[pid 12264] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12264] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12264] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12265 attached
 => {parent_tid=[12265]}, 88) = 12265
[pid 12265] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12265] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12265] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12264] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12264] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12265] <... futex resumed>)        = 0
[pid 12265] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12265] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12264] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12264] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12265] <... futex resumed>)        = 0
[pid 12265] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12265] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12265] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12264] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12264] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12265] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12265] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12264] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12264] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12265] <... futex resumed>)        = 0
[pid 12264] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12265] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12264] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12264] exit_group(0)               = ?
[pid 12265] <... futex resumed>)        = ?
[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=0x55558842d690) = 12266
./strace-static-x86_64: Process 12266 attached
[pid 12266] set_robust_list(0x55558842d6a0, 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
[pid 12266] write(1, "executing program\n", 18executing program
) = 18
[pid 12266] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12266] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12266] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12267]}, 88) = 12267
./strace-static-x86_64: Process 12267 attached
[pid 12267] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12267] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12267] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12266] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12266] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12267] <... futex resumed>)        = 0
[pid 12267] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12266] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12267] <... 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 12267] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12266] <... futex resumed>)        = 0
[pid 12266] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12267] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12266] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12267] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12267] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12266] <... futex resumed>)        = 0
[pid 12266] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12266] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12266] <... futex resumed>)        = 0
[pid 12266] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12266] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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=0x55558842d690) = 12268
./strace-static-x86_64: Process 12268 attached
[pid 12268] set_robust_list(0x55558842d6a0, 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
[pid 12268] write(3, "1000", 4)         = 4
[pid 12268] close(3)                    = 0
[pid 12268] write(1, "executing program\n", 18executing program
) = 18
[pid 12268] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12268] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12268] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12269]}, 88) = 12269
[pid 12268] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12268] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12268] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12269 attached
 <unfinished ...>
[pid 12269] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12268] <... futex resumed>)        = 0
[pid 12268] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12268] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12268] <... futex resumed>)        = 0
[pid 12268] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12268] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12268] <... futex resumed>)        = 0
[pid 12269] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12268] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12268] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12269] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12269] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12269] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12268] <... futex resumed>)        = 0
[pid 12268] exit_group(0)               = ?
[pid 12269] <... futex resumed>)        = ?
[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=0x55558842d690) = 12270
./strace-static-x86_64: Process 12270 attached
[pid 12270] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12270] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12270] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12271]}, 88) = 12271
[pid 12270] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12270] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12270] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12271 attached
 <unfinished ...>
[pid 12271] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12271] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12271] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12270] <... futex resumed>)        = 0
[pid 12270] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12270] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12271] <... futex resumed>)        = 1
[pid 12271] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12271] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12270] <... futex resumed>)        = 0
[pid 12270] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12270] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12271] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12270] <... futex resumed>)        = 0
[pid 12270] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12270] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12271] <... futex resumed>)        = 1
[pid 12271] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12271] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12270] <... futex resumed>)        = 0
[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=0x55558842d690) = 12272
[pid 12272] set_robust_list(0x55558842d6a0, 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(3executing program
)                    = 0
[pid 12272] write(1, "executing program\n", 18) = 18
[pid 12272] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12272] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12272] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12273 attached
 => {parent_tid=[12273]}, 88) = 12273
[pid 12272] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12272] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12272] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12273] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12272] <... futex resumed>)        = 0
[pid 12272] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12272] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12272] <... futex resumed>)        = 0
[pid 12272] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12272] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12273] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12272] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12272] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12273] <... futex resumed>)        = 0
[pid 12273] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12273] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12273] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12272] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12272] exit_group(0)               = ?
[pid 12273] <... futex resumed>)        = ?
[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=0x55558842d690) = 12274
./strace-static-x86_64: Process 12274 attached
[pid 12274] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12274] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12274] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12275 attached
 <unfinished ...>
[pid 12275] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12275] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12275] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12274] <... clone3 resumed> => {parent_tid=[12275]}, 88) = 12275
[pid 12274] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12274] futex(0x7fee38f303e8, 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 12275] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12275] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12274] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12274] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12275] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12274] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12274] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12275] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12274] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12274] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12275] <... futex resumed>)        = 0
[pid 12275] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12275] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12275] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12274] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12274] exit_group(0)               = ?
[pid 12275] <... futex resumed>)        = ?
[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=0x55558842d690) = 12276
./strace-static-x86_64: Process 12276 attached
[pid 12276] set_robust_list(0x55558842d6a0, 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
[pid 12276] write(1, "executing program\n", 18executing program
) = 18
[pid 12276] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12276] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12276] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12277 attached
 <unfinished ...>
[pid 12277] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12277] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12277] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12276] <... clone3 resumed> => {parent_tid=[12277]}, 88) = 12277
[pid 12276] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12276] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12277] <... futex resumed>)        = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12277] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12276] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12276] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12277] <... futex resumed>)        = 0
[pid 12277] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12276] <... futex resumed>)        = 1
[pid 12276] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12277] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12277] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12276] <... futex resumed>)        = 0
[pid 12276] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12276] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12276] <... futex resumed>)        = 0
[pid 12276] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12276] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12278
./strace-static-x86_64: Process 12278 attached
[pid 12278] set_robust_list(0x55558842d6a0, 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
[pid 12278] write(1, "executing program\n", 18executing program
) = 18
[pid 12278] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12278] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12278] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12279 attached
 => {parent_tid=[12279]}, 88) = 12279
[pid 12279] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12279] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12279] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12278] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12278] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12279] <... futex resumed>)        = 0
[pid 12279] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12278] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12279] <... 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 12279] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12279] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12278] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12278] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12279] <... futex resumed>)        = 0
[pid 12279] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12279] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12279] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12278] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12278] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12279] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12279] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12278] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12278] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12279] <... futex resumed>)        = 0
[pid 12278] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12279] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12279] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12279] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12278] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[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./strace-static-x86_64: Process 12280 attached
, child_tidptr=0x55558842d690) = 12280
[pid 12280] set_robust_list(0x55558842d6a0, 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
[pid 12280] write(1, "executing program\n", 18executing program
) = 18
[pid 12280] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12280] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12280] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12281 attached
 <unfinished ...>
[pid 12281] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12281] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12281] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12280] <... clone3 resumed> => {parent_tid=[12281]}, 88) = 12281
[pid 12280] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12280] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12281] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12281] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12280] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12280] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12281] <... futex resumed>)        = 0
[pid 12281] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12281] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12281] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12280] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12280] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12281] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12281] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12280] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12280] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12281] <... futex resumed>)        = 0
[pid 12281] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12281] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12281] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12280] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12280] exit_group(0 <unfinished ...>
[pid 12281] <... futex resumed>)        = ?
[pid 12281] +++ exited with 0 +++
[pid 12280] <... exit_group resumed>)   = ?
[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=0x55558842d690) = 12282
./strace-static-x86_64: Process 12282 attached
[pid 12282] set_robust_list(0x55558842d6a0, 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
executing program
[pid 12282] write(1, "executing program\n", 18) = 18
[pid 12282] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12282] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12282] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12283 attached
 => {parent_tid=[12283]}, 88) = 12283
[pid 12282] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12282] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12282] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12283] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12283] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12283] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12282] <... futex resumed>)        = 0
[pid 12282] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12282] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12283] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12283] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12282] <... futex resumed>)        = 0
[pid 12282] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12282] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12282] <... futex resumed>)        = 0
[pid 12282] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12282] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12283] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12283] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12282] <... futex resumed>)        = 0
[pid 12282] exit_group(0)               = ?
[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=0x55558842d690) = 12284
./strace-static-x86_64: Process 12284 attached
[pid 12284] set_robust_list(0x55558842d6a0, 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
[pid 12284] close(3executing program
)                    = 0
[pid 12284] write(1, "executing program\n", 18) = 18
[pid 12284] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12284] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12284] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12285]}, 88) = 12285
[pid 12284] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12284] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12284] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12285 attached
 <unfinished ...>
[pid 12285] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12285] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12284] <... futex resumed>)        = 0
[pid 12284] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12284] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12285] <... futex resumed>)        = 1
[pid 12285] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12285] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12284] <... futex resumed>)        = 0
[pid 12284] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12284] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12284] <... futex resumed>)        = 0
[pid 12284] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12284] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12285] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12285] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12284] <... futex resumed>)        = 0
[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=0x55558842d690) = 12286
./strace-static-x86_64: Process 12286 attached
[pid 12286] set_robust_list(0x55558842d6a0, 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
executing program
[pid 12286] write(1, "executing program\n", 18) = 18
[pid 12286] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12286] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12286] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12287]}, 88) = 12287
[pid 12286] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12286] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12286] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12287 attached
 <unfinished ...>
[pid 12287] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12287] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12286] <... futex resumed>)        = 0
[pid 12286] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12286] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12287] <... futex resumed>)        = 1
[pid 12287] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12287] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12286] <... futex resumed>)        = 0
[pid 12286] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12286] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12287] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12286] <... futex resumed>)        = 0
[pid 12286] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12286] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12287] <... futex resumed>)        = 1
[pid 12287] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12287] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12286] <... futex resumed>)        = 0
[pid 12286] exit_group(0)               = ?
[pid 12287] <... futex 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=0x55558842d690) = 12288
./strace-static-x86_64: Process 12288 attached
[pid 12288] set_robust_list(0x55558842d6a0, 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(3executing program
)                    = 0
[pid 12288] write(1, "executing program\n", 18) = 18
[pid 12288] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12288] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12288] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12289]}, 88) = 12289
[pid 12288] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12288] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12288] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12289 attached
 <unfinished ...>
[pid 12289] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12289] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12288] <... futex resumed>)        = 0
[pid 12288] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12289] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12288] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12289] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12289] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12288] <... futex resumed>)        = 0
[pid 12288] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12288] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12288] <... futex resumed>)        = 0
[pid 12288] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12288] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12288] <... futex resumed>)        = 0
[pid 12288] exit_group(0)               = ?
[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, child_tidptr=0x55558842d690) = 12290
./strace-static-x86_64: Process 12290 attached
[pid 12290] set_robust_list(0x55558842d6a0, 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
executing program
[pid 12290] close(3)                    = 0
[pid 12290] write(1, "executing program\n", 18) = 18
[pid 12290] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12290] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12290] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12291 attached
 => {parent_tid=[12291]}, 88) = 12291
[pid 12290] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12290] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12290] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12291] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12290] <... futex resumed>)        = 0
[pid 12290] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12290] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12291] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12291] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12290] <... futex resumed>)        = 0
[pid 12290] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12290] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12291] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12291] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12290] <... futex resumed>)        = 0
[pid 12290] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12290] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12291] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12291] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12290] <... futex resumed>)        = 0
[pid 12290] exit_group(0)               = ?
[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./strace-static-x86_64: Process 12292 attached
, child_tidptr=0x55558842d690) = 12292
[pid 12292] set_robust_list(0x55558842d6a0, 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(3executing program
)                    = 0
[pid 12292] write(1, "executing program\n", 18) = 18
[pid 12292] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12292] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12292] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12293]}, 88) = 12293
[pid 12292] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12292] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12292] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12293 attached
 <unfinished ...>
[pid 12293] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12293] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12292] <... futex resumed>)        = 0
[pid 12292] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12292] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12293] <... futex resumed>)        = 1
[pid 12293] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12293] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12292] <... futex resumed>)        = 0
[pid 12292] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12292] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12293] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12292] <... futex resumed>)        = 0
[pid 12292] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12292] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12293] <... futex resumed>)        = 1
[pid 12293] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12293] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12292] <... futex resumed>)        = 0
[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, child_tidptr=0x55558842d690) = 12294
./strace-static-x86_64: Process 12294 attached
[pid 12294] set_robust_list(0x55558842d6a0, 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
[pid 12294] write(1, "executing program\n", 18executing program
) = 18
[pid 12294] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12294] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12294] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12295 attached
 => {parent_tid=[12295]}, 88) = 12295
[pid 12294] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12294] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12294] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12295] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12294] <... futex resumed>)        = 0
[pid 12294] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12294] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12294] <... futex resumed>)        = 0
[pid 12294] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12295] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12294] <... futex resumed>)        = 0
[pid 12294] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12295] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12295] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12294] <... futex resumed>)        = 0
[pid 12294] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12294] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12295] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12295] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12294] <... futex resumed>)        = 0
[pid 12294] exit_group(0 <unfinished ...>
[pid 12295] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12294] <... exit_group resumed>)   = ?
[pid 12295] <... futex resumed>)        = ?
[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./strace-static-x86_64: Process 12296 attached
, child_tidptr=0x55558842d690) = 12296
[pid 12296] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12296] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12296] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12297 attached
 <unfinished ...>
[pid 12297] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12297] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12297] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12296] <... clone3 resumed> => {parent_tid=[12297]}, 88) = 12297
[pid 12296] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12296] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12297] <... futex resumed>)        = 0
[pid 12297] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12296] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12297] <... 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 12297] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12297] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12296] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12296] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12297] <... futex resumed>)        = 0
[pid 12296] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12297] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12296] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12296] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12297] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12297] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12296] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12296] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12297] <... futex resumed>)        = 0
[pid 12296] <... futex resumed>)        = 1
[pid 12297] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12296] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12297] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12297] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12296] <... futex resumed>)        = 0
[pid 12297] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12296] exit_group(0)               = ?
[pid 12297] <... futex resumed>)        = ?
[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=0x55558842d690) = 12298
./strace-static-x86_64: Process 12298 attached
[pid 12298] set_robust_list(0x55558842d6a0, 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
[pid 12298] close(3)                    = 0
[pid 12298] write(1, "executing program\n", 18executing program
) = 18
[pid 12298] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12298] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12298] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12299 attached
 => {parent_tid=[12299]}, 88) = 12299
[pid 12299] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12298] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12299] <... set_robust_list resumed>) = 0
[pid 12298] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12299] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12298] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12299] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12298] <... futex resumed>)        = 0
[pid 12298] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12298] <... futex resumed>)        = 0
[pid 12299] <... futex resumed>)        = 1
[pid 12298] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12299] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12298] <... futex resumed>)        = 0
[pid 12298] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12298] <... futex resumed>)        = 0
[pid 12299] <... futex resumed>)        = 1
[pid 12298] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12299] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12298] <... futex resumed>)        = 0
[pid 12298] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12299] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12299] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12298] <... futex resumed>)        = 0
[pid 12299] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12298] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12299] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12298] <... futex resumed>)        = 0
[pid 12298] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12298] <... futex resumed>)        = 0
[pid 12299] <... futex resumed>)        = 1
[pid 12298] exit_group(0 <unfinished ...>
[pid 12299] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12298] <... exit_group resumed>)   = ?
[pid 12299] <... futex resumed>)        = -1 (errno 18446744073709551414)
[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./strace-static-x86_64: Process 12300 attached
, child_tidptr=0x55558842d690) = 12300
[pid 12300] set_robust_list(0x55558842d6a0, 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
[pid 12300] write(1, "executing program\n", 18executing program
) = 18
[pid 12300] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12300] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12300] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12301 attached
 => {parent_tid=[12301]}, 88) = 12301
[pid 12301] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12300] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12301] <... set_robust_list resumed>) = 0
[pid 12300] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12301] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12300] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12301] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12300] <... futex resumed>)        = 0
[pid 12300] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12300] <... futex resumed>)        = 0
[pid 12301] <... futex resumed>)        = 1
[pid 12300] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12301] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12300] <... futex resumed>)        = 0
[pid 12300] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12301] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12301] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12300] <... futex resumed>)        = 0
[pid 12301] <... futex resumed>)        = 1
[pid 12300] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12301] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12300] <... futex resumed>)        = 0
[pid 12300] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12301] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12301] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12300] <... futex resumed>)        = 0
[pid 12301] <... futex resumed>)        = 1
[pid 12300] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12300] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12300] <... futex resumed>)        = 0
[pid 12301] <... futex resumed>)        = 1
[pid 12301] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12300] exit_group(0)               = ?
[pid 12301] <... futex resumed>)        = ?
[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=0x55558842d690) = 12302
./strace-static-x86_64: Process 12302 attached
[pid 12302] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12302] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12302] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12303]}, 88) = 12303
[pid 12302] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12302] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12302] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12303 attached
 <unfinished ...>
[pid 12303] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12303] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12302] <... futex resumed>)        = 0
[pid 12302] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12302] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12303] <... futex resumed>)        = 1
[pid 12303] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12303] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12302] <... futex resumed>)        = 0
[pid 12302] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12302] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12303] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12302] <... futex resumed>)        = 0
[pid 12302] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12302] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12303] <... futex resumed>)        = 1
[pid 12303] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12303] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12302] <... futex resumed>)        = 0
[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=0x55558842d690) = 12304
./strace-static-x86_64: Process 12304 attached
[pid 12304] set_robust_list(0x55558842d6a0, 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
executing program
[pid 12304] close(3)                    = 0
[pid 12304] write(1, "executing program\n", 18) = 18
[pid 12304] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12304] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12304] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12305]}, 88) = 12305
[pid 12304] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12304] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12304] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12305 attached
 <unfinished ...>
[pid 12305] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12305] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12304] <... futex resumed>)        = 0
[pid 12304] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12305] <... futex resumed>)        = 0
[pid 12304] <... futex resumed>)        = 1
[pid 12305] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12304] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12305] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12305] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12304] <... futex resumed>)        = 0
[pid 12304] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12304] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12304] <... futex resumed>)        = 0
[pid 12304] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12304] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12304] <... futex resumed>)        = 0
[pid 12304] exit_group(0)               = ?
[pid 12305] <... futex resumed>)        = ?
[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=0x55558842d690) = 12306
./strace-static-x86_64: Process 12306 attached
[pid 12306] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12306] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12306] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12307 attached
 => {parent_tid=[12307]}, 88) = 12307
[pid 12307] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12307] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12307] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12306] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12306] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12307] <... futex resumed>)        = 0
[pid 12307] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12306] <... futex resumed>)        = 1
[pid 12307] <... 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 12307] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12307] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12306] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12306] futex(0x7fee38f303e8, 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 12307] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12307] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12306] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12306] futex(0x7fee38f303e8, 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 12307] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12307] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12306] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12306] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12307] <... futex resumed>)        = 0
[pid 12307] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12307] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12307] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12306] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -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, child_tidptr=0x55558842d690) = 12308
./strace-static-x86_64: Process 12308 attached
[pid 12308] set_robust_list(0x55558842d6a0, 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", 4)         = 4
executing program
[pid 12308] close(3)                    = 0
[pid 12308] write(1, "executing program\n", 18) = 18
[pid 12308] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12308] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12308] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12309]}, 88) = 12309
[pid 12308] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12308] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12308] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12309 attached
 <unfinished ...>
[pid 12309] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12309] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12309] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12308] <... futex resumed>)        = 0
[pid 12308] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12308] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12309] <... futex resumed>)        = 1
[pid 12309] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12309] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12308] <... futex resumed>)        = 0
[pid 12308] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12308] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12309] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12308] <... futex resumed>)        = 0
[pid 12308] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12308] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12309] <... futex resumed>)        = 1
[pid 12309] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12309] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12308] <... futex resumed>)        = 0
[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=0x55558842d690) = 12310
./strace-static-x86_64: Process 12310 attached
[pid 12310] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12310] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12310] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12311 attached
 => {parent_tid=[12311]}, 88) = 12311
[pid 12311] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12310] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12311] <... set_robust_list resumed>) = 0
[pid 12310] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12311] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12310] <... futex resumed>)        = 0
[pid 12311] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12310] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12310] <... futex resumed>)        = 0
[pid 12311] <... futex resumed>)        = 1
[pid 12310] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12311] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12310] <... futex resumed>)        = 0
[pid 12310] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12311] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12311] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12310] <... futex resumed>)        = 0
[pid 12311] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12310] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12311] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12310] <... futex resumed>)        = 0
[pid 12311] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12310] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12311] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12311] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12310] <... futex resumed>)        = 0
[pid 12311] <... futex resumed>)        = 1
[pid 12310] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12310] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12311] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12311] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12310] <... futex resumed>)        = 0
[pid 12311] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12310] exit_group(0)               = ?
[pid 12311] <... futex resumed>)        = 231
[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=0x55558842d690) = 12312
./strace-static-x86_64: Process 12312 attached
[pid 12312] set_robust_list(0x55558842d6a0, 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(3)                    = 0
[pid 12312] write(1, "executing program\n", 18executing program
) = 18
[pid 12312] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12312] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12312] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12313 attached
 => {parent_tid=[12313]}, 88) = 12313
[pid 12313] set_robust_list(0x7fee38e679a0, 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 12313] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12312] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12313] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12312] <... futex resumed>)        = 0
[pid 12313] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12312] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12313] <... 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 12313] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12312] <... futex resumed>)        = 0
[pid 12312] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12312] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12312] <... futex resumed>)        = 0
[pid 12312] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12312] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12312] <... futex resumed>)        = 0
[pid 12312] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12312] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12312] <... futex resumed>)        = 0
[pid 12313] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12312] exit_group(0)               = ?
[pid 12313] <... futex resumed>)        = ?
[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, child_tidptr=0x55558842d690) = 12314
./strace-static-x86_64: Process 12314 attached
[pid 12314] set_robust_list(0x55558842d6a0, 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
[pid 12314] close(3)                    = 0
executing program
[pid 12314] write(1, "executing program\n", 18) = 18
[pid 12314] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12314] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12314] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12315 attached
 => {parent_tid=[12315]}, 88) = 12315
[pid 12314] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12314] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12314] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12315] set_robust_list(0x7fee38e679a0, 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 12315] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12314] <... futex resumed>)        = 0
[pid 12314] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12314] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12315] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12315] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12314] <... futex resumed>)        = 0
[pid 12314] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12314] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12314] <... futex resumed>)        = 0
[pid 12314] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12314] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12315] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12315] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12314] <... futex resumed>)        = 0
[pid 12314] exit_group(0)               = ?
[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./strace-static-x86_64: Process 12316 attached
 <unfinished ...>
[pid 12316] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12316] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   555] <... clone resumed>, child_tidptr=0x55558842d690) = 12316
[pid 12316] <... prctl resumed>)        = 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(3)                    = 0
[pid 12316] write(1, "executing program\n", 18executing program
) = 18
[pid 12316] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12316] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12316] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12317]}, 88) = 12317
[pid 12316] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12316] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12316] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12317 attached
 <unfinished ...>
[pid 12317] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12316] <... futex resumed>)        = 0
[pid 12316] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12316] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12317] <... futex resumed>)        = 1
[pid 12317] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12317] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12316] <... futex resumed>)        = 0
[pid 12316] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12316] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12317] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12316] <... futex resumed>)        = 0
[pid 12316] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12316] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12317] <... futex resumed>)        = 1
[pid 12317] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12317] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12316] <... futex resumed>)        = 0
[pid 12316] exit_group(0)               = ?
[pid 12317] <... futex resumed>)        = ?
[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./strace-static-x86_64: Process 12318 attached
, child_tidptr=0x55558842d690) = 12318
[pid 12318] set_robust_list(0x55558842d6a0, 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
[pid 12318] write(1, "executing program\n", 18executing program
) = 18
[pid 12318] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12318] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12318] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12319 attached
 => {parent_tid=[12319]}, 88) = 12319
[pid 12319] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12318] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12319] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12318] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12319] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12318] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12319] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12318] <... futex resumed>)        = 0
[pid 12319] <... 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 12318] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12319] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12318] <... futex resumed>)        = 0
[pid 12318] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12318] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12318] <... futex resumed>)        = 0
[pid 12318] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12318] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12318] <... futex resumed>)        = 0
[pid 12318] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12318] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12318] <... futex resumed>)        = 0
[pid 12319] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12318] exit_group(0)               = ?
[pid 12319] <... futex resumed>)        = ?
[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, child_tidptr=0x55558842d690) = 12320
./strace-static-x86_64: Process 12320 attached
[pid 12320] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12320] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12320] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12321 attached
 <unfinished ...>
[pid 12321] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12321] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12321] futex(0x7fee38f303e8, 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(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12321] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12320] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12320] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12321] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12320] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12320] futex(0x7fee38f303e8, 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) = -1 EBADF (Bad file descriptor)
[pid 12321] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12321] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12320] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12320] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12321] <... futex resumed>)        = 0
[pid 12321] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12321] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12321] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12320] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12320] exit_group(0)               = ?
[pid 12321] <... futex resumed>)        = ?
[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, child_tidptr=0x55558842d690) = 12322
./strace-static-x86_64: Process 12322 attached
[pid 12322] set_robust_list(0x55558842d6a0, 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", 18executing program
) = 18
[pid 12322] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12322] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12322] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12323 attached
 => {parent_tid=[12323]}, 88) = 12323
[pid 12323] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12322] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12323] <... set_robust_list resumed>) = 0
[pid 12322] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12323] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12322] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12323] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12322] <... futex resumed>)        = 0
[pid 12322] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12322] <... futex resumed>)        = 0
[pid 12323] <... futex resumed>)        = 1
[pid 12322] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12323] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12322] <... futex resumed>)        = 0
[pid 12322] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12323] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12323] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12322] <... futex resumed>)        = 0
[pid 12323] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12322] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12323] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12322] <... futex resumed>)        = 0
[pid 12323] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12322] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12323] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12323] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12322] <... futex resumed>)        = 0
[pid 12323] <... futex resumed>)        = 1
[pid 12322] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12322] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12322] <... futex resumed>)        = 0
[pid 12323] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12322] exit_group(0)               = ?
[pid 12323] <... futex resumed>)        = 231
[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=0x55558842d690) = 12324
./strace-static-x86_64: Process 12324 attached
[pid 12324] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12324] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12324] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12325 attached
 => {parent_tid=[12325]}, 88) = 12325
[pid 12325] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12325] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12325] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12324] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12324] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12325] <... futex resumed>)        = 0
[pid 12324] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12325] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12324] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12324] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12325] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12324] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12324] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12325] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12324] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12324] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12325] <... futex resumed>)        = 0
[pid 12324] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12325] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12325] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12325] futex(0x7fee38f303e8, 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./strace-static-x86_64: Process 12326 attached
 <unfinished ...>
[pid 12326] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12326] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12326] setpgid(0, 0)               = 0
[pid   555] <... clone resumed>, child_tidptr=0x55558842d690) = 12326
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12326] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12326] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12327]}, 88) = 12327
[pid 12326] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12326] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12326] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12327 attached
 <unfinished ...>
[pid 12327] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12326] <... futex resumed>)        = 0
[pid 12326] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12326] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12326] <... futex resumed>)        = 0
[pid 12326] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12326] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12326] <... futex resumed>)        = 0
[pid 12326] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12326] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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=0x55558842d690) = 12328
./strace-static-x86_64: Process 12328 attached
[pid 12328] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12328] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12328] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12329 attached
 => {parent_tid=[12329]}, 88) = 12329
[pid 12328] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12328] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12328] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12329] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12329] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12328] <... futex resumed>)        = 0
[pid 12328] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12328] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12328] <... futex resumed>)        = 0
[pid 12328] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12328] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12328] <... futex resumed>)        = 0
[pid 12328] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12328] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12328] <... futex resumed>)        = 0
[pid 12328] exit_group(0 <unfinished ...>
[pid 12329] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12328] <... exit_group resumed>)   = ?
[pid 12329] <... futex resumed>)        = ?
[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=0x55558842d690) = 12330
./strace-static-x86_64: Process 12330 attached
[pid 12330] set_robust_list(0x55558842d6a0, 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(3)                    = 0
[pid 12330] write(1, "executing program\n", 18executing program
) = 18
[pid 12330] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12330] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12330] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12331 attached
 => {parent_tid=[12331]}, 88) = 12331
[pid 12331] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12331] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12331] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12330] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12330] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12331] <... futex resumed>)        = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12331] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12330] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12330] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12331] <... futex resumed>)        = 0
[pid 12331] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12331] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12331] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12330] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12330] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12331] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12331] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12330] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12330] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12331] <... futex resumed>)        = 0
[pid 12331] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12331] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12331] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12330] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12330] exit_group(0)               = ?
[pid 12331] <... futex resumed>)        = ?
[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./strace-static-x86_64: Process 12332 attached
, child_tidptr=0x55558842d690) = 12332
[pid 12332] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12332] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12332] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12333 attached
 => {parent_tid=[12333]}, 88) = 12333
[pid 12333] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12333] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12333] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12332] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12332] futex(0x7fee38f303e8, 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 <unfinished ...>
[pid 12332] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12333] <... 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 12333] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12332] <... futex resumed>)        = 0
[pid 12332] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12332] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12333] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12333] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12332] <... futex resumed>)        = 0
[pid 12332] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12332] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12332] <... futex resumed>)        = 0
[pid 12332] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12332] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12333] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12333] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12332] <... futex resumed>)        = 0
[pid 12332] exit_group(0)               = ?
[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./strace-static-x86_64: Process 12334 attached
, child_tidptr=0x55558842d690) = 12334
[pid 12334] set_robust_list(0x55558842d6a0, 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
executing program
[pid 12334] close(3)                    = 0
[pid 12334] write(1, "executing program\n", 18) = 18
[pid 12334] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12334] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12334] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12335 attached
 => {parent_tid=[12335]}, 88) = 12335
[pid 12334] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12334] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12334] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12335] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12335] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12335] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12334] <... futex resumed>)        = 0
[pid 12334] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12334] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12335] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12335] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12334] <... futex resumed>)        = 0
[pid 12334] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12334] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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 12335] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12334] <... futex resumed>)        = 0
[pid 12334] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12334] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12334] <... futex resumed>)        = 0
[pid 12335] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[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./strace-static-x86_64: Process 12336 attached
, child_tidptr=0x55558842d690) = 12336
[pid 12336] set_robust_list(0x55558842d6a0, 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
[pid 12336] write(1, "executing program\n", 18executing program
) = 18
[pid 12336] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12336] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12336] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12337 attached
 => {parent_tid=[12337]}, 88) = 12337
[pid 12337] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12337] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12337] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12336] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12336] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12337] <... futex resumed>)        = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12337] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12336] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12336] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12337] <... futex resumed>)        = 0
[pid 12337] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12337] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12337] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12336] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12336] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12337] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12337] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12336] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12336] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12337] <... futex resumed>)        = 0
[pid 12337] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12337] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12337] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12336] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 12338 attached
, child_tidptr=0x55558842d690) = 12338
[pid 12338] set_robust_list(0x55558842d6a0, 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", 4)         = 4
[pid 12338] close(3executing program
)                    = 0
[pid 12338] write(1, "executing program\n", 18) = 18
[pid 12338] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12338] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12338] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12339 attached
 <unfinished ...>
[pid 12339] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12338] <... clone3 resumed> => {parent_tid=[12339]}, 88) = 12339
[pid 12339] <... set_robust_list resumed>) = 0
[pid 12338] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12339] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12338] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12339] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12338] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12339] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12338] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12338] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12339] <... futex resumed>)        = 0
[pid 12338] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12339] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12338] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12338] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12339] <... 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(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12339] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12339] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12339] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12338] <... futex resumed>)        = 0
[pid 12338] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12339] <... futex resumed>)        = 0
[pid 12339] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12338] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12339] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12339] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12339] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12338] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12338] exit_group(0)               = ?
[pid 12339] <... futex 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=0x55558842d690) = 12340
./strace-static-x86_64: Process 12340 attached
[pid 12340] set_robust_list(0x55558842d6a0, 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
[pid 12340] write(1, "executing program\n", 18executing program
) = 18
[pid 12340] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12340] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12340] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12341]}, 88) = 12341
[pid 12340] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12340] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12340] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12341 attached
 <unfinished ...>
[pid 12341] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12341] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12340] <... futex resumed>)        = 0
[pid 12340] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12340] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12341] <... futex resumed>)        = 1
[pid 12341] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12341] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12340] <... futex resumed>)        = 0
[pid 12340] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12340] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12341] <... futex resumed>)        = 1
[pid 12341] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12341] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12340] <... futex resumed>)        = 0
[pid 12340] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12340] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12341] <... futex resumed>)        = 1
[pid 12341] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12341] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12340] <... futex resumed>)        = 0
[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=0x55558842d690) = 12342
./strace-static-x86_64: Process 12342 attached
[pid 12342] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12342] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12342] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12343 attached
 => {parent_tid=[12343]}, 88) = 12343
[pid 12342] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12342] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12342] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12343] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12343] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12343] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12342] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12342] futex(0x7fee38f303e8, 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 12342] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12343] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12343] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12342] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12342] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12343] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12342] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12342] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12343] <... futex resumed>)        = 0
[pid 12342] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12343] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12342] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12342] exit_group(0)               = ?
[pid 12343] <... futex resumed>)        = ?
[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=0x55558842d690) = 12344
./strace-static-x86_64: Process 12344 attached
[pid 12344] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12344] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12344] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12345 attached
 => {parent_tid=[12345]}, 88) = 12345
[pid 12345] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12345] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12345] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12344] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12344] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12345] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12344] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12344] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12345] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12344] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12344] futex(0x7fee38f303e8, 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 12345] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12345] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12344] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12344] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12345] <... futex resumed>)        = 0
[pid 12345] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12345] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12345] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12344] futex(0x7fee38f303ec, 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, child_tidptr=0x55558842d690) = 12346
./strace-static-x86_64: Process 12346 attached
[pid 12346] set_robust_list(0x55558842d6a0, 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
[pid 12346] close(3)                    = 0
[pid 12346] write(1, "executing program\n", 18executing program
) = 18
[pid 12346] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12346] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12346] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12347 attached
 => {parent_tid=[12347]}, 88) = 12347
[pid 12346] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12346] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12346] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12347] set_robust_list(0x7fee38e679a0, 24) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12346] <... futex resumed>)        = 0
[pid 12346] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12346] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12347] <... futex resumed>)        = 1
[pid 12347] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12347] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12346] <... futex resumed>)        = 0
[pid 12346] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12346] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12347] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12346] <... futex resumed>)        = 0
[pid 12346] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12346] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12347] <... futex resumed>)        = 1
[pid 12347] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12347] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12346] <... futex resumed>)        = 0
[pid 12346] exit_group(0)               = ?
[pid 12347] <... futex resumed>)        = ?
[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./strace-static-x86_64: Process 12348 attached
, child_tidptr=0x55558842d690) = 12348
[pid 12348] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12348] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12348] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12349 attached
 => {parent_tid=[12349]}, 88) = 12349
[pid 12349] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12349] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12349] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12348] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12348] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12349] <... futex resumed>)        = 0
[pid 12348] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12349] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12348] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12348] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12349] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12348] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12348] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12349] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12348] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12348] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12349] <... futex resumed>)        = 0
[pid 12348] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12349] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12349] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12349] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12348] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12348] exit_group(0)               = ?
[pid 12349] <... futex 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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12350
./strace-static-x86_64: Process 12350 attached
[pid 12350] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12350] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12350] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12351 attached
 => {parent_tid=[12351]}, 88) = 12351
[pid 12351] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12350] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12351] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12350] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12351] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12350] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12351] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12350] <... futex resumed>)        = 0
[pid 12351] <... 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 12350] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12351] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12350] <... futex resumed>)        = 0
[pid 12350] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12351] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12351] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12351] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12350] <... futex resumed>)        = 1
[pid 12351] <... futex resumed>)        = 0
[pid 12351] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12350] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12350] futex(0x7fee38f303e8, 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 12351] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12351] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12350] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12350] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12351] <... futex resumed>)        = 0
[pid 12351] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12351] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12351] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12350] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[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=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12352
./strace-static-x86_64: Process 12352 attached
[pid 12352] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12352] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12352] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12353 attached
 => {parent_tid=[12353]}, 88) = 12353
[pid 12353] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12353] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12353] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12352] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12352] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12353] <... futex resumed>)        = 0
[pid 12353] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12353] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12352] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12352] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12353] <... futex resumed>)        = 0
[pid 12353] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12353] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12353] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12352] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12352] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12353] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12352] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12352] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12353] <... futex resumed>)        = 0
[pid 12353] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12353] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12353] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12352] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12352] exit_group(0)               = ?
[pid 12353] <... futex resumed>)        = ?
[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, child_tidptr=0x55558842d690) = 12354
./strace-static-x86_64: Process 12354 attached
[pid 12354] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12354] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12354] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12355 attached
 => {parent_tid=[12355]}, 88) = 12355
[pid 12355] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12354] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12355] <... set_robust_list resumed>) = 0
[pid 12354] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12354] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12354] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12355] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12354] <... futex resumed>)        = 0
[pid 12354] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12354] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12355] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12355] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12354] <... futex resumed>)        = 0
[pid 12354] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12354] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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 12355] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12354] <... futex resumed>)        = 0
[pid 12354] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12354] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12355] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12355] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12354] <... futex resumed>)        = 0
[pid 12354] exit_group(0 <unfinished ...>
[pid 12355] ????( <unfinished ...>
[pid 12354] <... exit_group resumed>)   = ?
[pid 12355] <... ???? 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=0x55558842d690) = 12356
./strace-static-x86_64: Process 12356 attached
[pid 12356] set_robust_list(0x55558842d6a0, 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
executing program
[pid 12356] close(3)                    = 0
[pid 12356] write(1, "executing program\n", 18) = 18
[pid 12356] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12356] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12356] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12357]}, 88) = 12357
[pid 12356] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12356] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12356] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12357 attached
 <unfinished ...>
[pid 12357] set_robust_list(0x7fee38e679a0, 24) = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12356] <... futex resumed>)        = 0
[pid 12356] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12356] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12357] <... futex resumed>)        = 1
[pid 12357] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12357] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12356] <... futex resumed>)        = 0
[pid 12356] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12356] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12357] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12356] <... futex resumed>)        = 0
[pid 12356] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12356] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12357] <... futex resumed>)        = 1
[pid 12357] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12357] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12356] <... futex resumed>)        = 0
[pid 12356] exit_group(0)               = ?
[pid 12357] <... futex resumed>)        = ?
[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=0x55558842d690) = 12358
./strace-static-x86_64: Process 12358 attached
[pid 12358] set_robust_list(0x55558842d6a0, 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", 18) = 18
[pid 12358] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
executing program
[pid 12358] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12358] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12359]}, 88) = 12359
./strace-static-x86_64: Process 12359 attached
[pid 12359] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12359] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12359] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12358] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12358] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12359] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12358] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12358] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12359] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12358] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12358] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12359] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12358] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12358] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12359] <... futex resumed>)        = 0
[pid 12359] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12359] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12359] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12358] futex(0x7fee38f303ec, 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=0x55558842d690) = 12360
[pid 12360] set_robust_list(0x55558842d6a0, 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
[pid 12360] write(1, "executing program\n", 18executing program
) = 18
[pid 12360] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12360] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12360] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12361 attached
 <unfinished ...>
[pid 12361] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12361] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12361] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12360] <... clone3 resumed> => {parent_tid=[12361]}, 88) = 12361
[pid 12360] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12360] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12361] <... futex resumed>)        = 0
[pid 12361] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12361] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12360] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12360] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12361] <... futex resumed>)        = 0
[pid 12361] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12361] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12361] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12360] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12360] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12361] <... futex resumed>)        = 0
[pid 12361] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12361] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12361] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12360] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12360] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12361] <... futex resumed>)        = 0
[pid 12361] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12361] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12361] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12360] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12360] exit_group(0)               = ?
[pid 12361] <... futex 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, child_tidptr=0x55558842d690) = 12362
./strace-static-x86_64: Process 12362 attached
[pid 12362] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12362] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12362] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12363]}, 88) = 12363
[pid 12362] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12362] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12362] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12363 attached
 <unfinished ...>
[pid 12363] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12363] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12363] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12362] <... futex resumed>)        = 0
[pid 12362] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12362] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12363] <... futex resumed>)        = 1
[pid 12363] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12363] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12362] <... futex resumed>)        = 0
[pid 12362] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12362] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12363] <... futex resumed>)        = 1
[pid 12363] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12363] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12362] <... futex resumed>)        = 0
[pid 12362] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12362] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12363] <... futex resumed>)        = 1
[pid 12363] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12363] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12362] <... futex resumed>)        = 0
[pid 12362] exit_group(0)               = ?
[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=0x55558842d690) = 12364
./strace-static-x86_64: Process 12364 attached
[pid 12364] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12364] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12364] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12365 attached
 => {parent_tid=[12365]}, 88) = 12365
[pid 12365] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12365] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12365] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12364] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12364] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12365] <... futex resumed>)        = 0
[pid 12365] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12364] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12364] <... futex resumed>)        = 0
[pid 12364] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12364] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12365] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12365] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12364] <... futex resumed>)        = 0
[pid 12364] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12364] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12365] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12365] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12364] <... futex resumed>)        = 0
[pid 12364] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12364] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12365] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12365] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12364] <... futex resumed>)        = 0
[pid 12364] exit_group(0)               = ?
[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./strace-static-x86_64: Process 12366 attached
 <unfinished ...>
[pid 12366] set_robust_list(0x55558842d6a0, 24) = 0
[pid   555] <... clone resumed>, child_tidptr=0x55558842d690) = 12366
[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(3)                    = 0
[pid 12366] write(1, "executing program\n", 18executing program
) = 18
[pid 12366] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12366] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12366] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12367 attached
 <unfinished ...>
[pid 12367] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12366] <... clone3 resumed> => {parent_tid=[12367]}, 88) = 12367
[pid 12366] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12367] <... set_robust_list resumed>) = 0
[pid 12366] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12367] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12366] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12367] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12366] <... futex resumed>)        = 0
[pid 12367] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12366] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12367] <... 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 12367] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12366] <... futex resumed>)        = 0
[pid 12366] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12366] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12367] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12367] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12366] <... futex resumed>)        = 0
[pid 12366] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12366] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12367] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12367] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12366] <... futex resumed>)        = 0
[pid 12366] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12366] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12367] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12367] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12366] <... futex resumed>)        = 0
[pid 12366] exit_group(0 <unfinished ...>
[pid 12367] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12366] <... exit_group resumed>)   = ?
[pid 12367] <... futex 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, child_tidptr=0x55558842d690) = 12368
./strace-static-x86_64: Process 12368 attached
[pid 12368] set_robust_list(0x55558842d6a0, 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
[pid 12368] write(1, "executing program\n", 18executing program
) = 18
[pid 12368] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12368] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12368] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12369 attached
 => {parent_tid=[12369]}, 88) = 12369
[pid 12369] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12369] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12369] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12368] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12368] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12369] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12369] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12368] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12368] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12369] <... futex resumed>)        = 0
[pid 12369] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12369] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12369] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12368] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12368] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12369] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12369] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12368] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12368] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12369] <... futex resumed>)        = 0
[pid 12369] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12369] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12369] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12368] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12368] exit_group(0)               = ?
[pid 12369] <... futex 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, child_tidptr=0x55558842d690) = 12370
./strace-static-x86_64: Process 12370 attached
[pid 12370] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12370] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12370] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12371 attached
 <unfinished ...>
[pid 12371] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12371] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12371] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12370] <... clone3 resumed> => {parent_tid=[12371]}, 88) = 12371
[pid 12370] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12370] futex(0x7fee38f303e8, 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 <unfinished ...>
[pid 12370] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12371] <... 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 12371] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12371] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12370] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12370] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12371] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12370] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12370] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12371] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12370] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12370] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12371] <... futex resumed>)        = 0
[pid 12371] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12371] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12371] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12370] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[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 12373 attached
 <unfinished ...>
[pid 12373] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12373] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   555] <... clone resumed>, child_tidptr=0x55558842d690) = 12373
[pid 12373] <... prctl resumed>)        = 0
[pid 12373] setpgid(0, 0)               = 0
[pid 12373] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12373] write(3, "1000", 4)         = 4
[pid 12373] close(3)                    = 0
[pid 12373] write(1, "executing program\n", 18executing program
) = 18
[pid 12373] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12373] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12373] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12373] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12373] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12373] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12373] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12374 attached
 => {parent_tid=[12374]}, 88) = 12374
[pid 12374] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12374] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12374] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12373] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12373] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12374] <... futex resumed>)        = 0
[pid 12374] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12373] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12374] <... 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 12374] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12374] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12373] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12373] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12374] <... futex resumed>)        = 0
[pid 12374] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12373] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12374] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12374] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12374] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12373] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12373] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12374] <... futex resumed>)        = 0
[pid 12374] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12373] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12374] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12374] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12374] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12373] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12373] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12374] <... futex resumed>)        = 0
[pid 12374] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12373] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12374] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12374] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12373] <... futex resumed>)        = 0
[pid 12373] exit_group(0 <unfinished ...>
[pid 12374] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12373] <... exit_group resumed>)   = ?
[pid 12374] <... futex resumed>)        = ?
[pid 12374] +++ exited with 0 +++
[pid 12373] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12373, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12375
./strace-static-x86_64: Process 12375 attached
[pid 12375] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12375] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12375] setpgid(0, 0)               = 0
[pid 12375] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12375] write(3, "1000", 4)         = 4
[pid 12375] close(3)                    = 0
[pid 12375] write(1, "executing program\n", 18executing program
) = 18
[pid 12375] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12375] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12375] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12375] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12375] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12375] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12375] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12376 attached
 => {parent_tid=[12376]}, 88) = 12376
[pid 12375] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12375] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12375] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12376] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12376] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12376] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12376] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12375] <... futex resumed>)        = 0
[pid 12376] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12375] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12376] <... futex resumed>)        = 0
[pid 12376] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12376] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12376] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12375] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12375] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12376] <... futex resumed>)        = 0
[pid 12376] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12376] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12376] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12375] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12375] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12376] <... futex resumed>)        = 0
[pid 12376] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12376] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12376] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12375] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12375] exit_group(0)               = ?
[pid 12376] <... futex resumed>)        = ?
[pid 12376] +++ exited with 0 +++
[pid 12375] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12375, si_uid=0, si_status=0, 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 12377 attached
, child_tidptr=0x55558842d690) = 12377
[pid 12377] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12377] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12377] setpgid(0, 0)               = 0
[pid 12377] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12377] write(3, "1000", 4)         = 4
[pid 12377] close(3)                    = 0
[pid 12377] write(1, "executing program\n", 18executing program
) = 18
[pid 12377] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12377] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12377] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12377] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12377] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12377] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12377] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12378 attached
 => {parent_tid=[12378]}, 88) = 12378
[pid 12378] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12378] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12378] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12377] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12377] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12378] <... futex resumed>)        = 0
[pid 12377] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12378] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12378] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12378] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12377] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12377] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12378] <... futex resumed>)        = 0
[pid 12378] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12378] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12378] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12377] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12377] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12378] <... futex resumed>)        = 0
[pid 12378] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12377] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12378] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12378] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12377] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12378] <... futex resumed>)        = 0
[pid 12377] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12378] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12377] <... futex resumed>)        = 0
[pid 12378] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12377] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12378] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12377] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12378] <... futex resumed>)        = 0
[pid 12377] exit_group(0 <unfinished ...>
[pid 12378] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12377] <... exit_group resumed>)   = ?
[pid 12378] <... futex resumed>)        = -1 (errno 18446744073709551414)
[pid 12378] +++ exited with 0 +++
[pid 12377] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12377, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12379
./strace-static-x86_64: Process 12379 attached
[pid 12379] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12379] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12379] setpgid(0, 0)               = 0
[pid 12379] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12379] write(3, "1000", 4)         = 4
[pid 12379] close(3)                    = 0
[pid 12379] write(1, "executing program\n", 18executing program
) = 18
[pid 12379] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12379] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12379] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12379] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12379] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12379] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12379] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12380 attached
 <unfinished ...>
[pid 12380] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12380] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12380] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12379] <... clone3 resumed> => {parent_tid=[12380]}, 88) = 12380
[pid 12379] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12379] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12380] <... futex resumed>)        = 0
[pid 12380] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12379] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12380] <... 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 12380] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12380] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12379] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12379] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12380] <... futex resumed>)        = 0
[pid 12380] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12380] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12380] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12379] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12379] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12380] <... futex resumed>)        = 0
[pid 12380] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12379] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12380] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12380] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12379] <... futex resumed>)        = 0
[pid 12379] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12379] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12380] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12380] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12379] <... futex resumed>)        = 0
[pid 12379] exit_group(0)               = ?
[pid 12380] +++ exited with 0 +++
[pid 12379] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12379, si_uid=0, si_status=0, 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 12381 attached
, child_tidptr=0x55558842d690) = 12381
[pid 12381] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12381] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12381] setpgid(0, 0)               = 0
[pid 12381] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12381] write(3, "1000", 4)         = 4
[pid 12381] close(3)                    = 0
executing program
[pid 12381] write(1, "executing program\n", 18) = 18
[pid 12381] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12381] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12381] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12381] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12381] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12381] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12381] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12382]}, 88) = 12382
./strace-static-x86_64: Process 12382 attached
[pid 12381] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12381] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12381] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12382] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12382] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12382] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12382] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12381] <... futex resumed>)        = 0
[pid 12381] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12381] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12382] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12382] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12381] <... futex resumed>)        = 0
[pid 12381] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12381] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12382] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12382] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12381] <... futex resumed>)        = 0
[pid 12382] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12381] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12381] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12382] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12382] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12382] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12381] <... futex resumed>)        = 0
[pid 12382] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12381] exit_group(0)               = ?
[pid 12382] <... futex resumed>)        = ?
[pid 12382] +++ exited with 0 +++
[pid 12381] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12381, si_uid=0, si_status=0, 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 12383 attached
, child_tidptr=0x55558842d690) = 12383
[pid 12383] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12383] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12383] setpgid(0, 0)               = 0
[pid 12383] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12383] write(3, "1000", 4)         = 4
[pid 12383] close(3)                    = 0
[pid 12383] write(1, "executing program\n", 18executing program
) = 18
[pid 12383] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12383] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12383] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12383] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12383] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12383] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12383] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12384 attached
 => {parent_tid=[12384]}, 88) = 12384
[pid 12384] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12384] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12384] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12383] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12383] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12384] <... futex resumed>)        = 0
[pid 12384] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12383] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12384] <... 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 12384] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12384] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12383] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12383] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12384] <... futex resumed>)        = 0
[pid 12384] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12384] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12384] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12383] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12383] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12384] <... futex resumed>)        = 0
[pid 12384] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12384] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12384] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12383] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12383] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12384] <... futex resumed>)        = 0
[pid 12384] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12384] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12384] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12383] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12383] exit_group(0)               = ?
[pid 12384] <... futex resumed>)        = ?
[pid 12384] +++ exited with 0 +++
[pid 12383] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12383, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12385
./strace-static-x86_64: Process 12385 attached
[pid 12385] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12385] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12385] setpgid(0, 0)               = 0
[pid 12385] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12385] write(3, "1000", 4)         = 4
[pid 12385] close(3)                    = 0
[pid 12385] write(1, "executing program\n", 18executing program
) = 18
[pid 12385] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12385] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12385] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12385] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12385] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12385] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12385] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12386 attached
 <unfinished ...>
[pid 12386] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12386] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12386] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12385] <... clone3 resumed> => {parent_tid=[12386]}, 88) = 12386
[pid 12385] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12385] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12386] <... futex resumed>)        = 0
[pid 12386] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12386] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12386] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12385] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12385] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12386] <... futex resumed>)        = 0
[pid 12386] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12386] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12386] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12385] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12385] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12386] <... futex resumed>)        = 0
[pid 12386] 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12386] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12385] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12385] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12386] <... futex resumed>)        = 0
[pid 12386] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12385] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12386] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12386] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12386] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12385] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12385] exit_group(0)               = ?
[pid 12386] <... futex resumed>)        = ?
[pid 12386] +++ exited with 0 +++
[pid 12385] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12385, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12387
./strace-static-x86_64: Process 12387 attached
[pid 12387] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12387] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12387] setpgid(0, 0)               = 0
[pid 12387] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12387] write(3, "1000", 4)         = 4
[pid 12387] close(3)                    = 0
executing program
[pid 12387] write(1, "executing program\n", 18) = 18
[pid 12387] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12387] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12387] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12387] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12387] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12387] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12387] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12388 attached
 => {parent_tid=[12388]}, 88) = 12388
[pid 12387] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12387] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12387] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12388] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12388] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12388] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12388] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12387] <... futex resumed>)        = 0
[pid 12387] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12387] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12388] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12388] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12387] <... futex resumed>)        = 0
[pid 12387] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12387] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12388] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12388] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12387] <... futex resumed>)        = 0
[pid 12387] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12387] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12388] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12388] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12387] <... futex resumed>)        = 0
[pid 12387] exit_group(0)               = ?
[pid 12388] +++ exited with 0 +++
[pid 12387] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12387, si_uid=0, si_status=0, 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 12389 attached
, child_tidptr=0x55558842d690) = 12389
[pid 12389] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12389] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12389] setpgid(0, 0)               = 0
[pid 12389] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12389] write(3, "1000", 4)         = 4
[pid 12389] close(3)                    = 0
[pid 12389] write(1, "executing program\n", 18executing program
) = 18
[pid 12389] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12389] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12389] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12389] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12389] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12389] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12389] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12390 attached
 => {parent_tid=[12390]}, 88) = 12390
[pid 12389] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12389] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12389] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12390] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12390] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12390] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12390] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12389] <... futex resumed>)        = 0
[pid 12389] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12389] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12390] <... futex resumed>)        = 1
[pid 12390] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12390] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12389] <... futex resumed>)        = 0
[pid 12389] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12389] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12390] <... futex resumed>)        = 1
[pid 12390] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12390] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12389] <... futex resumed>)        = 0
[pid 12389] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12389] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12390] <... futex resumed>)        = 1
[pid 12390] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12390] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12389] <... futex resumed>)        = 0
[pid 12389] exit_group(0)               = ?
[pid 12390] <... futex resumed>)        = 231
[pid 12390] +++ exited with 0 +++
[pid 12389] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12389, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12391
./strace-static-x86_64: Process 12391 attached
[pid 12391] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12391] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12391] setpgid(0, 0)               = 0
[pid 12391] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12391] write(3, "1000", 4)         = 4
[pid 12391] close(3)                    = 0
[pid 12391] write(1, "executing program\n", 18executing program
) = 18
[pid 12391] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12391] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12391] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12391] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12391] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12391] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12391] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12392 attached
 <unfinished ...>
[pid 12392] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12392] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12392] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12391] <... clone3 resumed> => {parent_tid=[12392]}, 88) = 12392
[pid 12391] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12391] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12392] <... futex resumed>)        = 0
[pid 12392] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12392] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12392] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12391] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12391] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12392] <... futex resumed>)        = 0
[pid 12392] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12392] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12392] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12391] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12391] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12392] <... futex resumed>)        = 0
[pid 12392] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12392] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12392] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12391] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12391] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12392] <... futex resumed>)        = 0
[pid 12392] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12392] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12392] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12391] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12391] exit_group(0)               = ?
[pid 12392] <... futex resumed>)        = ?
[pid 12392] +++ exited with 0 +++
[pid 12391] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12391, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12393
./strace-static-x86_64: Process 12393 attached
[pid 12393] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12393] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12393] setpgid(0, 0)               = 0
[pid 12393] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12393] write(3, "1000", 4)         = 4
[pid 12393] close(3)                    = 0
[pid 12393] write(1, "executing program\n", 18executing program
) = 18
[pid 12393] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12393] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12393] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12393] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12393] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12393] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12393] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12394]}, 88) = 12394
[pid 12393] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12393] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12393] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12394 attached
 <unfinished ...>
[pid 12394] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12394] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12394] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12394] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12393] <... futex resumed>)        = 0
[pid 12393] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12393] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12394] <... futex resumed>)        = 1
[pid 12394] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12394] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12393] <... futex resumed>)        = 0
[pid 12393] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12393] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12394] <... futex resumed>)        = 1
[pid 12394] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12394] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12393] <... futex resumed>)        = 0
[pid 12393] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12393] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12394] <... futex resumed>)        = 1
[pid 12394] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12394] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12393] <... futex resumed>)        = 0
[pid 12393] exit_group(0)               = ?
[pid 12394] <... futex resumed>)        = ?
[pid 12394] +++ exited with 0 +++
[pid 12393] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12393, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12395
./strace-static-x86_64: Process 12395 attached
[pid 12395] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12395] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12395] setpgid(0, 0)               = 0
[pid 12395] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12395] write(3, "1000", 4)         = 4
executing program
[pid 12395] close(3)                    = 0
[pid 12395] write(1, "executing program\n", 18) = 18
[pid 12395] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12395] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12395] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12395] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12395] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12395] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12395] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12396 attached
 => {parent_tid=[12396]}, 88) = 12396
[pid 12395] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12395] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12395] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12396] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12396] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12396] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12396] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12395] <... futex resumed>)        = 0
[pid 12395] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12395] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12396] <... futex resumed>)        = 1
[pid 12396] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12396] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12395] <... futex resumed>)        = 0
[pid 12395] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12395] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12396] <... futex resumed>)        = 1
[pid 12396] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12396] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12395] <... futex resumed>)        = 0
[pid 12395] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12395] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12396] <... futex resumed>)        = 1
[pid 12396] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12396] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12395] <... futex resumed>)        = 0
[pid 12395] exit_group(0)               = ?
[pid 12396] <... futex resumed>)        = ?
[pid 12396] +++ exited with 0 +++
[pid 12395] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12395, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12397
./strace-static-x86_64: Process 12397 attached
[pid 12397] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12397] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12397] setpgid(0, 0)               = 0
[pid 12397] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12397] write(3, "1000", 4executing program
)         = 4
[pid 12397] close(3)                    = 0
[pid 12397] write(1, "executing program\n", 18) = 18
[pid 12397] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12397] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12397] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12397] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12397] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12397] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12397] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12398]}, 88) = 12398
./strace-static-x86_64: Process 12398 attached
[pid 12397] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12398] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12397] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12397] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12397] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12398] <... set_robust_list resumed>) = 0
[pid 12398] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12398] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12398] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12397] <... futex resumed>)        = 0
[pid 12397] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12397] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12398] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12398] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12397] <... futex resumed>)        = 0
[pid 12397] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12397] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12398] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12398] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12397] <... futex resumed>)        = 0
[pid 12397] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12397] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12398] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12398] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12397] <... futex resumed>)        = 0
[pid 12397] exit_group(0)               = ?
[pid 12398] +++ exited with 0 +++
[pid 12397] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12397, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12399
./strace-static-x86_64: Process 12399 attached
[pid 12399] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12399] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12399] setpgid(0, 0)               = 0
[pid 12399] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12399] write(3, "1000", 4)         = 4
[pid 12399] close(3)                    = 0
executing program
[pid 12399] write(1, "executing program\n", 18) = 18
[pid 12399] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12399] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12399] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12399] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12399] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12399] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12399] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12400 attached
 => {parent_tid=[12400]}, 88) = 12400
[pid 12399] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12399] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12399] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12400] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12400] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12400] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12400] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12399] <... futex resumed>)        = 0
[pid 12399] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12399] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12400] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12400] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12399] <... futex resumed>)        = 0
[pid 12399] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12399] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12400] 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12399] <... futex resumed>)        = 0
[pid 12399] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12399] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12400] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12400] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12399] <... futex resumed>)        = 0
[pid 12399] exit_group(0)               = ?
[pid 12400] +++ exited with 0 +++
[pid 12399] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12399, si_uid=0, si_status=0, 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 12401 attached
, child_tidptr=0x55558842d690) = 12401
[pid 12401] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12401] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12401] setpgid(0, 0)               = 0
[pid 12401] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12401] write(3, "1000", 4)         = 4
[pid 12401] close(3)                    = 0
[pid 12401] write(1, "executing program\n", 18executing program
) = 18
[pid 12401] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12401] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12401] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12401] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12401] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12401] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12401] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12402 attached
 => {parent_tid=[12402]}, 88) = 12402
[pid 12402] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12402] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12402] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12401] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12401] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12402] <... futex resumed>)        = 0
[pid 12402] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12402] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12402] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12401] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12401] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12402] <... futex resumed>)        = 0
[pid 12402] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12402] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12402] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12401] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12401] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12402] <... futex resumed>)        = 0
[pid 12402] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12402] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12402] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12401] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12401] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12402] <... futex resumed>)        = 0
[pid 12402] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12402] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12402] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12401] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12401] exit_group(0)               = ?
[pid 12402] <... futex resumed>)        = ?
[pid 12402] +++ exited with 0 +++
[pid 12401] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12401, si_uid=0, si_status=0, 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 12403 attached
, child_tidptr=0x55558842d690) = 12403
[pid 12403] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12403] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12403] setpgid(0, 0)               = 0
[pid 12403] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12403] write(3, "1000", 4)         = 4
[pid 12403] close(3)                    = 0
[pid 12403] write(1, "executing program\n", 18executing program
) = 18
[pid 12403] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12403] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12403] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12403] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12403] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12403] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12403] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12404 attached
 <unfinished ...>
[pid 12404] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12404] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12404] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12403] <... clone3 resumed> => {parent_tid=[12404]}, 88) = 12404
[pid 12403] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12403] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12404] <... futex resumed>)        = 0
[pid 12404] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12404] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12404] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12403] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12403] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12404] <... futex resumed>)        = 0
[pid 12404] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12404] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12404] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12403] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12403] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12404] <... futex resumed>)        = 0
[pid 12404] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12404] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12404] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12403] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12403] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12404] <... futex resumed>)        = 0
[pid 12404] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12404] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12404] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12403] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12403] exit_group(0)               = ?
[pid 12404] <... futex resumed>)        = ?
[pid 12404] +++ exited with 0 +++
[pid 12403] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12403, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12405
./strace-static-x86_64: Process 12405 attached
[pid 12405] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12405] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12405] setpgid(0, 0)               = 0
[pid 12405] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12405] write(3, "1000", 4)         = 4
executing program
[pid 12405] close(3)                    = 0
[pid 12405] write(1, "executing program\n", 18) = 18
[pid 12405] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12405] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12405] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12405] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12405] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12405] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12405] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12406]}, 88) = 12406
[pid 12405] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12405] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12405] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12406 attached
 <unfinished ...>
[pid 12406] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12406] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12406] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12406] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12405] <... futex resumed>)        = 0
[pid 12405] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12405] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12406] <... futex resumed>)        = 1
[pid 12406] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12406] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12405] <... futex resumed>)        = 0
[pid 12405] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12405] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12406] <... futex resumed>)        = 1
[pid 12406] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12406] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12405] <... futex resumed>)        = 0
[pid 12405] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12405] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12406] <... futex resumed>)        = 1
[pid 12406] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12406] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12405] <... futex resumed>)        = 0
[pid 12405] exit_group(0)               = ?
[pid 12406] <... futex resumed>)        = ?
[pid 12406] +++ exited with 0 +++
[pid 12405] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12405, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12407
./strace-static-x86_64: Process 12407 attached
[pid 12407] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12407] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12407] setpgid(0, 0)               = 0
[pid 12407] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12407] write(3, "1000", 4)         = 4
[pid 12407] close(3)                    = 0
[pid 12407] write(1, "executing program\n", 18executing program
) = 18
[pid 12407] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12407] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12407] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12407] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12407] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12407] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12407] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12408 attached
 => {parent_tid=[12408]}, 88) = 12408
[pid 12408] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12408] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12408] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12407] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12407] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12408] <... futex resumed>)        = 0
[pid 12408] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12408] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12408] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12407] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12407] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12408] <... futex resumed>)        = 0
[pid 12408] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12408] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12408] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12407] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12407] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12408] <... futex resumed>)        = 0
[pid 12408] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12408] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12408] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12407] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12407] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12408] <... futex resumed>)        = 0
[pid 12408] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12408] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12408] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12407] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12407] exit_group(0)               = ?
[pid 12408] <... futex resumed>)        = ?
[pid 12408] +++ exited with 0 +++
[pid 12407] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12407, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12409
./strace-static-x86_64: Process 12409 attached
[pid 12409] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12409] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12409] setpgid(0, 0)               = 0
[pid 12409] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12409] write(3, "1000", 4)         = 4
[pid 12409] close(3executing program
)                    = 0
[pid 12409] write(1, "executing program\n", 18) = 18
[pid 12409] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12409] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12409] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12409] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12409] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12409] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12409] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12410 attached
 => {parent_tid=[12410]}, 88) = 12410
[pid 12409] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12409] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12409] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12410] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12410] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12410] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12410] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12409] <... futex resumed>)        = 0
[pid 12409] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12410] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12409] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12410] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12410] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12409] <... futex resumed>)        = 0
[pid 12409] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12409] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12410] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12410] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12409] <... futex resumed>)        = 0
[pid 12409] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12409] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12410] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12410] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12409] <... futex resumed>)        = 0
[pid 12409] exit_group(0)               = ?
[pid 12410] +++ exited with 0 +++
[pid 12409] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12409, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12411
./strace-static-x86_64: Process 12411 attached
[pid 12411] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12411] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12411] setpgid(0, 0)               = 0
[pid 12411] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12411] write(3, "1000", 4)         = 4
[pid 12411] close(3)                    = 0
[pid 12411] write(1, "executing program\n", 18executing program
) = 18
[pid 12411] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12411] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12411] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12411] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12411] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12411] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12411] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12412 attached
 <unfinished ...>
[pid 12412] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12412] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12412] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12411] <... clone3 resumed> => {parent_tid=[12412]}, 88) = 12412
[pid 12411] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12411] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12412] <... futex resumed>)        = 0
[pid 12412] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12412] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12412] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12411] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12411] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12412] <... futex resumed>)        = 0
[pid 12412] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12412] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12412] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12411] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12411] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12412] <... futex resumed>)        = 0
[pid 12412] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12412] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12412] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12411] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12411] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12412] <... futex resumed>)        = 0
[pid 12412] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12412] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12412] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12411] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12411] exit_group(0)               = ?
[pid 12412] <... futex resumed>)        = ?
[pid 12412] +++ exited with 0 +++
[pid 12411] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12411, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12413
./strace-static-x86_64: Process 12413 attached
[pid 12413] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12413] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12413] setpgid(0, 0)               = 0
[pid 12413] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12413] write(3, "1000", 4)         = 4
[pid 12413] close(3)                    = 0
[pid 12413] write(1, "executing program\n", 18executing program
) = 18
[pid 12413] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12413] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12413] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12413] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12413] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12413] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12413] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12414 attached
 <unfinished ...>
[pid 12414] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12414] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12414] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12413] <... clone3 resumed> => {parent_tid=[12414]}, 88) = 12414
[pid 12413] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12413] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12414] <... futex resumed>)        = 0
[pid 12414] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12414] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12414] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12413] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12413] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12414] <... futex resumed>)        = 0
[pid 12414] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12414] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12414] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12413] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12413] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12414] <... futex resumed>)        = 0
[pid 12414] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12414] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12414] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12413] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12413] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12414] <... futex resumed>)        = 0
[pid 12414] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12414] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12414] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12413] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12413] exit_group(0)               = ?
[pid 12414] <... futex resumed>)        = ?
[pid 12414] +++ exited with 0 +++
[pid 12413] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12413, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12415
./strace-static-x86_64: Process 12415 attached
[pid 12415] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12415] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12415] setpgid(0, 0)               = 0
[pid 12415] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12415] write(3, "1000", 4)         = 4
[pid 12415] close(3)                    = 0
[pid 12415] write(1, "executing program\n", 18executing program
) = 18
[pid 12415] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12415] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12415] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12415] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12415] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12415] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12415] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12416 attached
 => {parent_tid=[12416]}, 88) = 12416
[pid 12416] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12416] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12416] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12415] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12415] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12416] <... futex resumed>)        = 0
[pid 12416] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12416] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12416] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12415] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12415] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12416] <... futex resumed>)        = 0
[pid 12416] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12416] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12416] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12415] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12415] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12416] <... futex resumed>)        = 0
[pid 12416] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12416] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12416] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12415] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12415] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12416] <... futex resumed>)        = 0
[pid 12416] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12416] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12416] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12415] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12415] exit_group(0)               = ?
[pid 12416] <... futex resumed>)        = ?
[pid 12416] +++ exited with 0 +++
[pid 12415] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12415, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12417
./strace-static-x86_64: Process 12417 attached
[pid 12417] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12417] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12417] setpgid(0, 0)               = 0
[pid 12417] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12417] write(3, "1000", 4)         = 4
[pid 12417] close(3)                    = 0
[pid 12417] write(1, "executing program\n", 18executing program
) = 18
[pid 12417] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12417] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12417] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12417] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12417] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12417] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12417] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12418 attached
 => {parent_tid=[12418]}, 88) = 12418
[pid 12418] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12418] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12418] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12417] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12417] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12418] <... futex resumed>)        = 0
[pid 12418] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12418] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12418] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12417] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12417] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12418] <... futex resumed>)        = 0
[pid 12418] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12418] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12418] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12417] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12417] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12418] <... futex resumed>)        = 0
[pid 12418] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12417] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12418] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12418] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12418] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12417] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12417] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12418] <... futex resumed>)        = 0
[pid 12417] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12418] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12418] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12418] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12417] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12417] exit_group(0)               = ?
[pid 12418] <... futex resumed>)        = ?
[pid 12418] +++ exited with 0 +++
[pid 12417] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12417, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12419
./strace-static-x86_64: Process 12419 attached
[pid 12419] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12419] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12419] setpgid(0, 0)               = 0
[pid 12419] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12419] write(3, "1000", 4)         = 4
[pid 12419] close(3)                    = 0
[pid 12419] write(1, "executing program\n", 18executing program
) = 18
[pid 12419] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12419] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12419] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12419] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12419] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12419] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12419] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12420 attached
 => {parent_tid=[12420]}, 88) = 12420
[pid 12420] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12420] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12420] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12419] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12419] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12420] <... futex resumed>)        = 0
[pid 12420] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12419] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12420] <... 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 12420] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12420] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12419] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12419] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12420] <... futex resumed>)        = 0
[pid 12420] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12420] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12420] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12419] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12419] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12420] <... futex resumed>)        = 0
[pid 12420] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12420] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12420] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12419] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12419] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12420] <... futex resumed>)        = 0
[pid 12420] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12420] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12420] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12419] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12419] exit_group(0)               = ?
[pid 12420] <... futex resumed>)        = ?
[pid 12420] +++ exited with 0 +++
[pid 12419] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12419, 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 12421 attached
, child_tidptr=0x55558842d690) = 12421
[pid 12421] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12421] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12421] setpgid(0, 0)               = 0
[pid 12421] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12421] write(3, "1000", 4)         = 4
[pid 12421] close(3)                    = 0
[pid 12421] write(1, "executing program\n", 18executing program
) = 18
[pid 12421] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12421] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12421] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12421] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12421] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12421] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12421] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12422 attached
 => {parent_tid=[12422]}, 88) = 12422
[pid 12422] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12422] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12422] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12421] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12421] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12422] <... futex resumed>)        = 0
[pid 12422] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12421] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12422] <... 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 12422] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12422] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12421] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12421] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12422] <... futex resumed>)        = 0
[pid 12422] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12421] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12422] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12422] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12422] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12421] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12421] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12422] <... futex resumed>)        = 0
[pid 12422] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12422] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12422] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12421] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12421] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12422] <... futex resumed>)        = 0
[pid 12422] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12421] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12422] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12422] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12422] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12421] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12421] exit_group(0)               = ?
[pid 12422] <... futex resumed>)        = ?
[pid 12422] +++ exited with 0 +++
[pid 12421] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12421, si_uid=0, si_status=0, 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 12423 attached
, child_tidptr=0x55558842d690) = 12423
[pid 12423] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12423] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12423] setpgid(0, 0)               = 0
[pid 12423] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12423] write(3, "1000", 4)         = 4
[pid 12423] close(3)                    = 0
[pid 12423] write(1, "executing program\n", 18executing program
) = 18
[pid 12423] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12423] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12423] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12423] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12423] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12423] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12423] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12424 attached
 => {parent_tid=[12424]}, 88) = 12424
[pid 12424] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12424] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12424] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12423] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12423] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12424] <... futex resumed>)        = 0
[pid 12424] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12423] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12424] <... 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 12424] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12424] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12423] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12423] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12424] <... futex resumed>)        = 0
[pid 12424] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12423] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12424] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12424] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12424] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12423] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12423] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12424] <... futex resumed>)        = 0
[pid 12424] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12424] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12424] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12423] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12423] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12424] <... futex resumed>)        = 0
[pid 12424] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12423] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12424] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12424] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12424] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12423] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12423] exit_group(0)               = ?
[pid 12424] <... futex resumed>)        = ?
[pid 12424] +++ exited with 0 +++
[pid 12423] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12423, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12425
./strace-static-x86_64: Process 12425 attached
[pid 12425] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12425] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12425] setpgid(0, 0)               = 0
[pid 12425] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12425] write(3, "1000", 4)         = 4
[pid 12425] close(3)                    = 0
executing program
[pid 12425] write(1, "executing program\n", 18) = 18
[pid 12425] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12425] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12425] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12425] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12425] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12425] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12425] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12426 attached
 <unfinished ...>
[pid 12426] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12425] <... clone3 resumed> => {parent_tid=[12426]}, 88) = 12426
[pid 12425] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12426] <... set_robust_list resumed>) = 0
[pid 12425] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12426] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12425] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12426] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12425] <... futex resumed>)        = 0
[pid 12426] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12425] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12426] <... 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 12426] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12425] <... futex resumed>)        = 0
[pid 12425] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12425] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12426] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12426] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12425] <... futex resumed>)        = 0
[pid 12425] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12425] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12426] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12426] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12425] <... futex resumed>)        = 0
[pid 12425] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12425] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12426] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12426] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12425] <... futex resumed>)        = 0
[pid 12425] exit_group(0)               = ?
[pid 12426] +++ exited with 0 +++
[pid 12425] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12425, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12427
./strace-static-x86_64: Process 12427 attached
[pid 12427] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12427] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12427] setpgid(0, 0)               = 0
[pid 12427] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12427] write(3, "1000", 4)         = 4
[pid 12427] close(3executing program
)                    = 0
[pid 12427] write(1, "executing program\n", 18) = 18
[pid 12427] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12427] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12427] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12427] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12427] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12427] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12427] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12428]}, 88) = 12428
./strace-static-x86_64: Process 12428 attached
[pid 12427] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12427] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12427] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12428] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12428] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12428] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12428] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12427] <... futex resumed>)        = 0
[pid 12427] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12427] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12428] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12428] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12427] <... futex resumed>)        = 0
[pid 12427] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12427] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12428] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12428] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12427] <... futex resumed>)        = 0
[pid 12427] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12427] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12428] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12428] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12427] <... futex resumed>)        = 0
[pid 12427] exit_group(0)               = ?
[pid 12428] +++ exited with 0 +++
[pid 12427] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12427, si_uid=0, si_status=0, 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 12429 attached
, child_tidptr=0x55558842d690) = 12429
[pid 12429] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12429] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12429] setpgid(0, 0)               = 0
[pid 12429] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12429] write(3, "1000", 4)         = 4
[pid 12429] close(3)                    = 0
executing program
[pid 12429] write(1, "executing program\n", 18) = 18
[pid 12429] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12429] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12429] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12429] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12429] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12429] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12429] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12430]}, 88) = 12430
[pid 12429] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12429] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12429] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12430 attached
 <unfinished ...>
[pid 12430] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12430] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12430] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12430] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12430] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12429] <... futex resumed>)        = 0
[pid 12429] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12430] <... futex resumed>)        = 0
[pid 12429] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12430] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12430] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12429] <... futex resumed>)        = 0
[pid 12430] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12429] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12430] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12429] <... futex resumed>)        = 0
[pid 12429] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12430] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12430] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12429] <... futex resumed>)        = 0
[pid 12430] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12429] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12430] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12429] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12430] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12430] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12429] <... futex resumed>)        = 0
[pid 12430] <... futex resumed>)        = 1
[pid 12429] exit_group(0 <unfinished ...>
[pid 12430] ????( <unfinished ...>
[pid 12429] <... exit_group resumed>)   = ?
[pid 12430] <... ???? resumed>)         = 0xe7
[pid 12430] +++ exited with 0 +++
[pid 12429] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12429, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12431
./strace-static-x86_64: Process 12431 attached
[pid 12431] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12431] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12431] setpgid(0, 0)               = 0
[pid 12431] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12431] write(3, "1000", 4)         = 4
executing program
[pid 12431] close(3)                    = 0
[pid 12431] write(1, "executing program\n", 18) = 18
[pid 12431] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12431] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12431] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12431] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12431] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12431] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12431] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12432 attached
 => {parent_tid=[12432]}, 88) = 12432
[pid 12432] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12431] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12432] <... set_robust_list resumed>) = 0
[pid 12431] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12432] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12431] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12432] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12431] <... futex resumed>)        = 0
[pid 12432] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12431] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12432] <... 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 12432] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12431] <... futex resumed>)        = 0
[pid 12431] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12431] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12432] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12432] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12431] <... futex resumed>)        = 0
[pid 12431] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12431] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12432] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12432] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12431] <... futex resumed>)        = 0
[pid 12431] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12431] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12432] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12432] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12432] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12431] <... futex resumed>)        = 0
[pid 12431] exit_group(0)               = ?
[pid 12432] <... futex resumed>)        = ?
[pid 12432] +++ exited with 0 +++
[pid 12431] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12431, si_uid=0, si_status=0, 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 12433 attached
 <unfinished ...>
[pid 12433] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12433] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   555] <... clone resumed>, child_tidptr=0x55558842d690) = 12433
[pid 12433] <... prctl resumed>)        = 0
[pid 12433] setpgid(0, 0)               = 0
[pid 12433] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12433] write(3, "1000", 4)         = 4
[pid 12433] close(3)                    = 0
[pid 12433] write(1, "executing program\n", 18executing program
) = 18
[pid 12433] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12433] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12433] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12433] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12433] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12433] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12433] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12434 attached
 => {parent_tid=[12434]}, 88) = 12434
[pid 12434] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12434] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12434] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12433] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12433] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12434] <... futex resumed>)        = 0
[pid 12434] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12433] <... futex resumed>)        = 1
[pid 12434] <... 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 12434] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12434] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12433] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12433] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12434] <... futex resumed>)        = 0
[pid 12434] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12434] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12434] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12433] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12433] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12434] <... futex resumed>)        = 0
[pid 12434] 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12434] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12433] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12433] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12434] <... futex resumed>)        = 0
[pid 12434] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12434] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12434] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12433] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12433] exit_group(0)               = ?
[pid 12434] <... futex resumed>)        = ?
[pid 12434] +++ exited with 0 +++
[pid 12433] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12433, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12435
./strace-static-x86_64: Process 12435 attached
[pid 12435] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12435] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12435] setpgid(0, 0)               = 0
[pid 12435] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12435] write(3, "1000", 4)         = 4
[pid 12435] close(3)                    = 0
[pid 12435] write(1, "executing program\n", 18executing program
) = 18
[pid 12435] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12435] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12435] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12435] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12435] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12435] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12435] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12436 attached
 => {parent_tid=[12436]}, 88) = 12436
[pid 12436] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12436] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12436] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12435] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12435] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12436] <... futex resumed>)        = 0
[pid 12436] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12436] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12436] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12435] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12435] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12436] <... futex resumed>)        = 0
[pid 12436] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12436] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12436] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12435] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12435] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12436] <... futex resumed>)        = 0
[pid 12436] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12436] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12436] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12435] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12435] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12436] <... futex resumed>)        = 0
[pid 12436] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12436] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12436] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12435] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12435] exit_group(0)               = ?
[pid 12436] <... futex resumed>)        = ?
[pid 12436] +++ exited with 0 +++
[pid 12435] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12435, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12437
./strace-static-x86_64: Process 12437 attached
[pid 12437] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12437] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12437] setpgid(0, 0)               = 0
[pid 12437] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12437] write(3, "1000", 4executing program
)         = 4
[pid 12437] close(3)                    = 0
[pid 12437] write(1, "executing program\n", 18) = 18
[pid 12437] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12437] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12437] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12437] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12437] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12437] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12437] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12438 attached
 => {parent_tid=[12438]}, 88) = 12438
[pid 12437] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12437] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12437] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12438] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12438] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12438] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12438] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12437] <... futex resumed>)        = 0
[pid 12437] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12437] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12438] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12438] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12437] <... futex resumed>)        = 0
[pid 12437] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12437] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12438] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12438] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12437] <... futex resumed>)        = 0
[pid 12437] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12437] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12438] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12438] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12437] <... futex resumed>)        = 0
[pid 12437] exit_group(0)               = ?
[pid 12438] +++ exited with 0 +++
[pid 12437] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12437, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12439
./strace-static-x86_64: Process 12439 attached
[pid 12439] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12439] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12439] setpgid(0, 0)               = 0
[pid 12439] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12439] write(3, "1000", 4)         = 4
[pid 12439] close(3executing program
)                    = 0
[pid 12439] write(1, "executing program\n", 18) = 18
[pid 12439] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12439] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12439] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12439] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12439] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12439] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12439] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12440 attached
 => {parent_tid=[12440]}, 88) = 12440
[pid 12439] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12439] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12439] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12440] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12440] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12440] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12440] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12440] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12439] <... futex resumed>)        = 0
[pid 12439] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12440] <... futex resumed>)        = 0
[pid 12440] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12440] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12440] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12439] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12439] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12440] <... futex resumed>)        = 0
[pid 12440] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12440] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12440] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12439] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12439] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12440] <... futex resumed>)        = 0
[pid 12440] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12440] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12440] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12439] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12439] exit_group(0)               = ?
[pid 12440] <... futex resumed>)        = ?
[pid 12440] +++ exited with 0 +++
[pid 12439] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12439, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12441
./strace-static-x86_64: Process 12441 attached
[pid 12441] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12441] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12441] setpgid(0, 0)               = 0
[pid 12441] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12441] write(3, "1000", 4)         = 4
[pid 12441] close(3)                    = 0
[pid 12441] write(1, "executing program\n", 18executing program
) = 18
[pid 12441] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12441] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12441] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12441] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12441] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12441] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12441] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12442 attached
 => {parent_tid=[12442]}, 88) = 12442
[pid 12442] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12442] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12442] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12441] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12441] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12442] <... futex resumed>)        = 0
[pid 12441] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12442] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12442] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12442] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12441] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12441] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12442] <... futex resumed>)        = 0
[pid 12442] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12442] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12442] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12441] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12441] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12442] <... futex resumed>)        = 0
[pid 12442] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12441] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12442] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12442] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12442] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12441] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12441] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12442] <... futex resumed>)        = 0
[pid 12442] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12441] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12442] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12442] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12442] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12441] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12441] exit_group(0)               = ?
[pid 12442] <... futex resumed>)        = ?
[pid 12442] +++ exited with 0 +++
[pid 12441] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12441, si_uid=0, si_status=0, 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 12443 attached
 <unfinished ...>
[pid 12443] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12443] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   555] <... clone resumed>, child_tidptr=0x55558842d690) = 12443
[pid 12443] <... prctl resumed>)        = 0
[pid 12443] setpgid(0, 0)               = 0
[pid 12443] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12443] write(3, "1000", 4)         = 4
[pid 12443] close(3)                    = 0
[pid 12443] write(1, "executing program\n", 18executing program
) = 18
[pid 12443] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12443] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12443] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12443] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12443] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12443] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12443] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12444 attached
 => {parent_tid=[12444]}, 88) = 12444
[pid 12444] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12444] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12444] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12443] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12443] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12444] <... futex resumed>)        = 0
[pid 12443] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12444] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12444] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12444] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12443] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12443] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12444] <... futex resumed>)        = 0
[pid 12444] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12444] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12444] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12443] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12443] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12444] <... futex resumed>)        = 0
[pid 12444] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12444] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12444] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12443] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12443] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12444] <... futex resumed>)        = 0
[pid 12444] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12444] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12444] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12443] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12443] exit_group(0)               = ?
[pid 12444] <... futex resumed>)        = ?
[pid 12444] +++ exited with 0 +++
[pid 12443] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12443, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12445
./strace-static-x86_64: Process 12445 attached
[pid 12445] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12445] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12445] setpgid(0, 0)               = 0
[pid 12445] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12445] write(3, "1000", 4)         = 4
[pid 12445] close(3)                    = 0
executing program
[pid 12445] write(1, "executing program\n", 18) = 18
[pid 12445] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12445] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12445] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12445] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12445] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12445] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12445] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12446 attached
 => {parent_tid=[12446]}, 88) = 12446
[pid 12445] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12445] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12445] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12446] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12446] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12446] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12446] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12445] <... futex resumed>)        = 0
[pid 12445] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12445] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12446] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12446] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12445] <... futex resumed>)        = 0
[pid 12445] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12445] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12446] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12446] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12445] <... futex resumed>)        = 0
[pid 12445] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12445] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12446] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12446] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12445] <... futex resumed>)        = 0
[pid 12445] exit_group(0)               = ?
[pid 12446] +++ exited with 0 +++
[pid 12445] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12445, si_uid=0, si_status=0, 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 12447 attached
, child_tidptr=0x55558842d690) = 12447
[pid 12447] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12447] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12447] setpgid(0, 0)               = 0
[pid 12447] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12447] write(3, "1000", 4)         = 4
[pid 12447] close(3)                    = 0
[pid 12447] write(1, "executing program\n", 18executing program
) = 18
[pid 12447] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12447] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12447] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12447] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12447] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12447] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12447] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12448 attached
 => {parent_tid=[12448]}, 88) = 12448
[pid 12448] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12448] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12448] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12447] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12447] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12448] <... futex resumed>)        = 0
[pid 12447] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12448] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12448] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12447] <... futex resumed>)        = 0
[pid 12447] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12447] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12448] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12448] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12447] <... futex resumed>)        = 0
[pid 12447] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12447] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12448] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12448] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12447] <... futex resumed>)        = 0
[pid 12447] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12447] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12448] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12448] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12447] <... futex resumed>)        = 0
[pid 12447] exit_group(0)               = ?
[pid 12448] +++ exited with 0 +++
[pid 12447] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12447, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12449
./strace-static-x86_64: Process 12449 attached
[pid 12449] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12449] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12449] setpgid(0, 0)               = 0
[pid 12449] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12449] write(3, "1000", 4executing program
)         = 4
[pid 12449] close(3)                    = 0
[pid 12449] write(1, "executing program\n", 18) = 18
[pid 12449] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12449] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12449] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12449] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12449] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12449] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12449] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12450]}, 88) = 12450
[pid 12449] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12449] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12449] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12450 attached
 <unfinished ...>
[pid 12450] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12450] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12450] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12449] <... futex resumed>)        = 0
[pid 12449] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12449] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12450] <... futex resumed>)        = 1
[pid 12450] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12450] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12449] <... futex resumed>)        = 0
[pid 12449] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12449] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12450] <... futex resumed>)        = 1
[pid 12450] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12450] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12449] <... futex resumed>)        = 0
[pid 12449] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12449] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12450] <... futex resumed>)        = 1
[pid 12450] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12450] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12449] <... futex resumed>)        = 0
[pid 12449] exit_group(0)               = ?
[pid 12450] <... futex resumed>)        = ?
[pid 12450] +++ exited with 0 +++
[pid 12449] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12449, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12451
./strace-static-x86_64: Process 12451 attached
[pid 12451] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12451] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12451] setpgid(0, 0)               = 0
[pid 12451] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12451] write(3, "1000", 4)         = 4
[pid 12451] close(3)                    = 0
[pid 12451] write(1, "executing program\n", 18executing program
) = 18
[pid 12451] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12451] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12451] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12451] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12451] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12451] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12451] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12452 attached
 => {parent_tid=[12452]}, 88) = 12452
[pid 12452] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12451] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12452] <... set_robust_list resumed>) = 0
[pid 12451] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12452] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12451] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12452] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12451] <... futex resumed>)        = 0
[pid 12451] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12452] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12452] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12451] <... futex resumed>)        = 0
[pid 12452] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12451] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12452] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12451] <... futex resumed>)        = 0
[pid 12452] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12451] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12452] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12452] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12451] <... futex resumed>)        = 0
[pid 12452] <... futex resumed>)        = 1
[pid 12451] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12452] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12451] <... futex resumed>)        = 0
[pid 12451] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12452] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12452] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12451] <... futex resumed>)        = 0
[pid 12452] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12451] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12452] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12451] <... futex resumed>)        = 0
[pid 12451] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12452] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12452] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12451] <... futex resumed>)        = 0
[pid 12452] <... futex resumed>)        = 1
[pid 12451] exit_group(0 <unfinished ...>
[pid 12452] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12451] <... exit_group resumed>)   = ?
[pid 12452] <... futex resumed>)        = -1 (errno 18446744073709551414)
[pid 12452] +++ exited with 0 +++
[pid 12451] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12451, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12453
./strace-static-x86_64: Process 12453 attached
[pid 12453] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12453] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12453] setpgid(0, 0)               = 0
[pid 12453] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12453] write(3, "1000", 4)         = 4
[pid 12453] close(3)                    = 0
[pid 12453] write(1, "executing program\n", 18executing program
) = 18
[pid 12453] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12453] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12453] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12453] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12453] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12453] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12453] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12454 attached
 <unfinished ...>
[pid 12454] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12453] <... clone3 resumed> => {parent_tid=[12454]}, 88) = 12454
[pid 12453] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12454] <... set_robust_list resumed>) = 0
[pid 12453] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12454] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12453] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12454] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12453] <... futex resumed>)        = 0
[pid 12453] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12454] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12454] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12453] <... futex resumed>)        = 0
[pid 12453] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12453] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12454] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12454] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12453] <... futex resumed>)        = 0
[pid 12453] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12453] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12454] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12454] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12453] <... futex resumed>)        = 0
[pid 12453] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12453] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12454] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12454] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12453] <... futex resumed>)        = 0
[pid 12453] exit_group(0)               = ?
[pid 12454] +++ exited with 0 +++
[pid 12453] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12453, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12455
./strace-static-x86_64: Process 12455 attached
[pid 12455] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12455] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12455] setpgid(0, 0)               = 0
[pid 12455] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12455] write(3, "1000", 4)         = 4
executing program
[pid 12455] close(3)                    = 0
[pid 12455] write(1, "executing program\n", 18) = 18
[pid 12455] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12455] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12455] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12455] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12455] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12455] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12455] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12456 attached
 => {parent_tid=[12456]}, 88) = 12456
[pid 12456] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12455] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12456] <... set_robust_list resumed>) = 0
[pid 12456] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12456] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12455] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12455] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12456] <... futex resumed>)        = 0
[pid 12456] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12456] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12456] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12455] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12455] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12456] <... futex resumed>)        = 0
[pid 12456] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12456] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12456] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12455] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12455] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12456] <... futex resumed>)        = 0
[pid 12456] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12456] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12456] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12455] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12455] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12456] <... futex resumed>)        = 0
[pid 12455] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12456] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12456] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12456] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12455] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12455] exit_group(0)               = ?
[pid 12456] <... futex resumed>)        = ?
[pid 12456] +++ exited with 0 +++
[pid 12455] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12455, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12457
./strace-static-x86_64: Process 12457 attached
[pid 12457] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12457] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12457] setpgid(0, 0)               = 0
[pid 12457] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12457] write(3, "1000", 4)         = 4
[pid 12457] close(3)                    = 0
[pid 12457] write(1, "executing program\n", 18executing program
) = 18
[pid 12457] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12457] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12457] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12457] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12457] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12457] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12457] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12458 attached
 => {parent_tid=[12458]}, 88) = 12458
[pid 12457] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12457] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12457] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12458] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12458] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12458] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12458] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12457] <... futex resumed>)        = 0
[pid 12457] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12457] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12458] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12458] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12457] <... futex resumed>)        = 0
[pid 12457] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12457] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12458] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12458] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12458] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12457] <... futex resumed>)        = 0
[pid 12457] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12457] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12458] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12458] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12458] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12457] <... futex resumed>)        = 0
[pid 12458] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12457] exit_group(0)               = ?
[pid 12458] <... futex resumed>)        = ?
[pid 12458] +++ exited with 0 +++
[pid 12457] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12457, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12459
./strace-static-x86_64: Process 12459 attached
[pid 12459] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12459] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12459] setpgid(0, 0)               = 0
[pid 12459] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12459] write(3, "1000", 4)         = 4
[pid 12459] close(3)                    = 0
executing program
[pid 12459] write(1, "executing program\n", 18) = 18
[pid 12459] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12459] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12459] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12459] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12459] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12459] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12459] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12460 attached
 => {parent_tid=[12460]}, 88) = 12460
[pid 12459] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12459] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12459] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12460] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12460] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12460] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12460] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12459] <... futex resumed>)        = 0
[pid 12459] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12459] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12460] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12460] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12459] <... futex resumed>)        = 0
[pid 12459] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12459] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12460] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12460] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12459] <... futex resumed>)        = 0
[pid 12459] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12459] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12460] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12460] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12459] <... futex resumed>)        = 0
[pid 12459] exit_group(0)               = ?
[pid 12460] +++ exited with 0 +++
[pid 12459] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12459, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12461
./strace-static-x86_64: Process 12461 attached
[pid 12461] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12461] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12461] setpgid(0, 0)               = 0
[pid 12461] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12461] write(3, "1000", 4)         = 4
[pid 12461] close(3)                    = 0
[pid 12461] write(1, "executing program\n", 18executing program
) = 18
[pid 12461] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12461] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12461] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12461] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12461] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12461] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12461] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12462 attached
 => {parent_tid=[12462]}, 88) = 12462
[pid 12462] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12462] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12462] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12461] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12461] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12462] <... futex resumed>)        = 0
[pid 12462] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12462] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12462] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12461] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12461] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12462] <... futex resumed>)        = 0
[pid 12462] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12462] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12462] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12461] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12461] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12462] <... futex resumed>)        = 0
[pid 12462] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12462] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12462] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12461] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12461] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12462] <... futex resumed>)        = 0
[pid 12462] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12462] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12462] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12461] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12461] exit_group(0)               = ?
[pid 12462] <... futex resumed>)        = ?
[pid 12462] +++ exited with 0 +++
[pid 12461] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12461, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12463
./strace-static-x86_64: Process 12463 attached
[pid 12463] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12463] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12463] setpgid(0, 0)               = 0
[pid 12463] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12463] write(3, "1000", 4)         = 4
[pid 12463] close(3executing program
)                    = 0
[pid 12463] write(1, "executing program\n", 18) = 18
[pid 12463] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12463] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12463] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12463] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12463] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12463] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12463] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12464]}, 88) = 12464
[pid 12463] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12463] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12463] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12464 attached
 <unfinished ...>
[pid 12464] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12464] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12464] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12463] <... futex resumed>)        = 0
[pid 12463] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12463] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12464] <... futex resumed>)        = 1
[pid 12464] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12464] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12463] <... futex resumed>)        = 0
[pid 12463] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12463] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12464] <... futex resumed>)        = 1
[pid 12464] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12464] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12463] <... futex resumed>)        = 0
[pid 12463] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12463] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12464] <... futex resumed>)        = 1
[pid 12464] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12464] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12463] <... futex resumed>)        = 0
[pid 12463] exit_group(0)               = ?
[pid 12464] <... futex resumed>)        = ?
[pid 12464] +++ exited with 0 +++
[pid 12463] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12463, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12465
./strace-static-x86_64: Process 12465 attached
[pid 12465] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12465] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12465] setpgid(0, 0)               = 0
[pid 12465] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12465] write(3, "1000", 4)         = 4
[pid 12465] close(3)                    = 0
executing program
[pid 12465] write(1, "executing program\n", 18) = 18
[pid 12465] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12465] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12465] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12465] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12465] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12465] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12465] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12466 attached
 => {parent_tid=[12466]}, 88) = 12466
[pid 12465] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12465] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12465] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12466] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12466] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12466] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12466] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12465] <... futex resumed>)        = 0
[pid 12465] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12465] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12466] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12466] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12465] <... futex resumed>)        = 0
[pid 12465] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12465] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12466] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12466] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12465] <... futex resumed>)        = 0
[pid 12465] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12465] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12466] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12466] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12465] <... futex resumed>)        = 0
[pid 12466] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12465] exit_group(0)               = ?
[pid 12466] <... futex resumed>)        = ?
[pid 12466] +++ exited with 0 +++
[pid 12465] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12465, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12467
./strace-static-x86_64: Process 12467 attached
[pid 12467] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12467] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12467] setpgid(0, 0)               = 0
[pid 12467] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12467] write(3, "1000", 4)         = 4
[pid 12467] close(3)                    = 0
[pid 12467] write(1, "executing program\n", 18executing program
) = 18
[pid 12467] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12467] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12467] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12467] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12467] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12467] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12467] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12468 attached
 => {parent_tid=[12468]}, 88) = 12468
[pid 12468] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12468] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12468] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12467] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12467] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12468] <... futex resumed>)        = 0
[pid 12467] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12468] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12468] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12468] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12467] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12467] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12468] <... futex resumed>)        = 0
[pid 12468] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12468] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12468] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12467] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12467] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12468] <... futex resumed>)        = 0
[pid 12468] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12468] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12468] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12467] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12467] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12468] <... futex resumed>)        = 0
[pid 12467] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12468] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12468] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12468] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12467] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12467] exit_group(0)               = ?
[pid 12468] <... futex resumed>)        = ?
[pid 12468] +++ exited with 0 +++
[pid 12467] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12467, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12469
./strace-static-x86_64: Process 12469 attached
[pid 12469] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12469] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12469] setpgid(0, 0)               = 0
[pid 12469] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12469] write(3, "1000", 4)         = 4
[pid 12469] close(3)                    = 0
[pid 12469] write(1, "executing program\n", 18executing program
) = 18
[pid 12469] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12469] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12469] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12469] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12469] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12469] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12469] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12470]}, 88) = 12470
[pid 12469] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12469] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12469] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12470 attached
 <unfinished ...>
[pid 12470] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12470] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12470] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12470] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12469] <... futex resumed>)        = 0
[pid 12469] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12469] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12470] <... futex resumed>)        = 1
[pid 12470] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12470] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12469] <... futex resumed>)        = 0
[pid 12469] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12469] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12470] <... futex resumed>)        = 1
[pid 12470] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12470] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12469] <... futex resumed>)        = 0
[pid 12469] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12469] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12470] <... futex resumed>)        = 1
[pid 12470] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12470] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12469] <... futex resumed>)        = 0
[pid 12469] exit_group(0 <unfinished ...>
[pid 12470] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12469] <... exit_group resumed>)   = ?
[pid 12470] <... futex resumed>)        = ?
[pid 12470] +++ exited with 0 +++
[pid 12469] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12469, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12471
./strace-static-x86_64: Process 12471 attached
[pid 12471] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12471] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12471] setpgid(0, 0)               = 0
[pid 12471] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12471] write(3, "1000", 4)         = 4
[pid 12471] close(3)                    = 0
[pid 12471] write(1, "executing program\n", 18executing program
) = 18
[pid 12471] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12471] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12471] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12471] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12471] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12471] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12471] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12472 attached
 => {parent_tid=[12472]}, 88) = 12472
[pid 12472] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12472] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12472] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12471] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12471] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12472] <... futex resumed>)        = 0
[pid 12472] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12472] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12472] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12471] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12471] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12472] <... futex resumed>)        = 0
[pid 12472] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12472] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12472] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12471] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12471] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12472] <... futex resumed>)        = 0
[pid 12472] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12472] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12472] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12471] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12471] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12472] <... futex resumed>)        = 0
[pid 12472] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12472] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12472] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12471] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12471] exit_group(0)               = ?
[pid 12472] <... futex resumed>)        = ?
[pid 12472] +++ exited with 0 +++
[pid 12471] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12471, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12473
./strace-static-x86_64: Process 12473 attached
[pid 12473] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12473] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12473] setpgid(0, 0)               = 0
[pid 12473] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12473] write(3, "1000", 4executing program
)         = 4
[pid 12473] close(3)                    = 0
[pid 12473] write(1, "executing program\n", 18) = 18
[pid 12473] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12473] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12473] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12473] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12473] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12473] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12473] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12474]}, 88) = 12474
[pid 12473] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12473] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12473] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12474 attached
 <unfinished ...>
[pid 12474] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12474] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12474] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12474] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12473] <... futex resumed>)        = 0
[pid 12473] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12473] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12474] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12474] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12473] <... futex resumed>)        = 0
[pid 12473] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12473] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12474] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12474] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12473] <... futex resumed>)        = 0
[pid 12473] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12473] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12474] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12474] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12473] <... futex resumed>)        = 0
[pid 12473] exit_group(0)               = ?
[pid 12474] +++ exited with 0 +++
[pid 12473] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12473, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12475
./strace-static-x86_64: Process 12475 attached
[pid 12475] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12475] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12475] setpgid(0, 0)               = 0
[pid 12475] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12475] write(3, "1000", 4)         = 4
[pid 12475] close(3)                    = 0
executing program
[pid 12475] write(1, "executing program\n", 18) = 18
[pid 12475] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12475] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12475] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12475] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12475] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12475] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12475] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12476 attached
 => {parent_tid=[12476]}, 88) = 12476
[pid 12476] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12475] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12476] <... set_robust_list resumed>) = 0
[pid 12475] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12476] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12475] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12476] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12475] <... futex resumed>)        = 0
[pid 12476] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12475] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12476] <... 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 12476] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12475] <... futex resumed>)        = 0
[pid 12475] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12475] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12476] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12476] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12475] <... futex resumed>)        = 0
[pid 12475] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12475] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12476] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12476] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12475] <... futex resumed>)        = 0
[pid 12475] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12475] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12476] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12476] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12475] <... futex resumed>)        = 0
[pid 12475] exit_group(0)               = ?
[pid 12476] +++ exited with 0 +++
[pid 12475] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12475, si_uid=0, si_status=0, 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 12477 attached
, child_tidptr=0x55558842d690) = 12477
[pid 12477] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12477] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12477] setpgid(0, 0)               = 0
[pid 12477] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12477] write(3, "1000", 4)         = 4
[pid 12477] close(3)                    = 0
[pid 12477] write(1, "executing program\n", 18executing program
) = 18
[pid 12477] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12477] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12477] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12477] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12477] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12477] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12477] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12478]}, 88) = 12478
[pid 12477] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12477] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12477] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12478 attached
 <unfinished ...>
[pid 12478] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12478] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12478] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12478] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12477] <... futex resumed>)        = 0
[pid 12477] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12477] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12478] <... futex resumed>)        = 1
[pid 12478] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12478] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12477] <... futex resumed>)        = 0
[pid 12477] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12477] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12478] <... futex resumed>)        = 1
[pid 12478] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12478] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12477] <... futex resumed>)        = 0
[pid 12477] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12477] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12478] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12478] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12477] <... futex resumed>)        = 0
[pid 12477] exit_group(0)               = ?
[pid 12478] +++ exited with 0 +++
[pid 12477] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12477, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12479
./strace-static-x86_64: Process 12479 attached
[pid 12479] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12479] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12479] setpgid(0, 0)               = 0
[pid 12479] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12479] write(3, "1000", 4)         = 4
[pid 12479] close(3executing program
)                    = 0
[pid 12479] write(1, "executing program\n", 18) = 18
[pid 12479] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12479] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12479] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12479] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12479] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12479] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12479] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12480]}, 88) = 12480
[pid 12479] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12479] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12479] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12480 attached
 <unfinished ...>
[pid 12480] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12480] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12480] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12480] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12479] <... futex resumed>)        = 0
[pid 12479] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12479] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12480] <... futex resumed>)        = 1
[pid 12480] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12480] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12479] <... futex resumed>)        = 0
[pid 12480] <... futex resumed>)        = 1
[pid 12479] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12479] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12480] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12480] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12479] <... futex resumed>)        = 0
[pid 12479] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12479] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12480] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12480] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12479] <... futex resumed>)        = 0
[pid 12479] exit_group(0 <unfinished ...>
[pid 12480] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12479] <... exit_group resumed>)   = ?
[pid 12480] <... futex resumed>)        = ?
[pid 12480] +++ exited with 0 +++
[pid 12479] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12479, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12481
./strace-static-x86_64: Process 12481 attached
[pid 12481] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12481] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12481] setpgid(0, 0)               = 0
[pid 12481] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12481] write(3, "1000", 4)         = 4
[pid 12481] close(3)                    = 0
[pid 12481] write(1, "executing program\n", 18executing program
) = 18
[pid 12481] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12481] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12481] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12481] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12481] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12481] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12481] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12482 attached
 => {parent_tid=[12482]}, 88) = 12482
[pid 12482] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12482] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12482] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12481] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12481] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12482] <... futex resumed>)        = 0
[pid 12482] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12481] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12482] <... 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 12482] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12482] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12481] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12481] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12482] <... futex resumed>)        = 0
[pid 12482] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12482] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12482] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12481] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12481] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12482] <... futex resumed>)        = 0
[pid 12482] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12482] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12482] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12481] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12481] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12482] <... futex resumed>)        = 0
[pid 12482] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12482] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12482] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12481] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12481] exit_group(0)               = ?
[pid 12482] <... futex resumed>)        = ?
[pid 12482] +++ exited with 0 +++
[pid 12481] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12481, si_uid=0, si_status=0, 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 12483 attached
, child_tidptr=0x55558842d690) = 12483
[pid 12483] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12483] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12483] setpgid(0, 0)               = 0
[pid 12483] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12483] write(3, "1000", 4)         = 4
executing program
[pid 12483] close(3)                    = 0
[pid 12483] write(1, "executing program\n", 18) = 18
[pid 12483] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12483] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12483] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12483] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12483] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12483] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12483] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12484 attached
 => {parent_tid=[12484]}, 88) = 12484
[pid 12483] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12483] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12483] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12484] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12484] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12484] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12484] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12483] <... futex resumed>)        = 0
[pid 12483] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12483] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12484] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12484] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12483] <... futex resumed>)        = 0
[pid 12483] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12483] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12484] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12484] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12483] <... futex resumed>)        = 0
[pid 12483] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12483] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12484] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12484] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12483] <... futex resumed>)        = 0
[pid 12483] exit_group(0)               = ?
[pid 12484] +++ exited with 0 +++
[pid 12483] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12483, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12485
./strace-static-x86_64: Process 12485 attached
[pid 12485] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12485] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12485] setpgid(0, 0)               = 0
[pid 12485] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12485] write(3, "1000", 4)         = 4
[pid 12485] close(3)                    = 0
[pid 12485] write(1, "executing program\n", 18executing program
) = 18
[pid 12485] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12485] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12485] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12485] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12485] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12485] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12485] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12486 attached
 => {parent_tid=[12486]}, 88) = 12486
[pid 12486] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12486] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12486] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12485] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12485] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12486] <... futex resumed>)        = 0
[pid 12486] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12486] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12486] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12485] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12485] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12486] <... futex resumed>)        = 0
[pid 12486] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12486] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12486] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12485] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12485] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12486] <... futex resumed>)        = 0
[pid 12486] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12486] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12486] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12485] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12485] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12486] <... futex resumed>)        = 0
[pid 12486] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12486] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12486] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12485] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12485] exit_group(0)               = ?
[pid 12486] <... futex resumed>)        = ?
[pid 12486] +++ exited with 0 +++
[pid 12485] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12485, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12487
./strace-static-x86_64: Process 12487 attached
[pid 12487] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12487] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12487] setpgid(0, 0)               = 0
[pid 12487] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12487] write(3, "1000", 4)         = 4
executing program
[pid 12487] close(3)                    = 0
[pid 12487] write(1, "executing program\n", 18) = 18
[pid 12487] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12487] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12487] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12487] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12487] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12487] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12487] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12488 attached
 => {parent_tid=[12488]}, 88) = 12488
[pid 12487] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12487] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12487] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12488] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12488] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12488] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12488] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12487] <... futex resumed>)        = 0
[pid 12487] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12487] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12488] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12488] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12487] <... futex resumed>)        = 0
[pid 12487] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12487] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12488] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12488] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12487] <... futex resumed>)        = 0
[pid 12487] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12487] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12488] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12488] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12487] <... futex resumed>)        = 0
[pid 12487] exit_group(0)               = ?
[pid 12488] +++ exited with 0 +++
[pid 12487] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12487, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12489
./strace-static-x86_64: Process 12489 attached
[pid 12489] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12489] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12489] setpgid(0, 0)               = 0
[pid 12489] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12489] write(3, "1000", 4)         = 4
[pid 12489] close(3)                    = 0
[pid 12489] write(1, "executing program\n", 18executing program
) = 18
[pid 12489] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12489] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12489] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12489] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12489] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12489] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12489] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12490 attached
 => {parent_tid=[12490]}, 88) = 12490
[pid 12490] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12490] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12490] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12489] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12489] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12490] <... futex resumed>)        = 0
[pid 12489] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12490] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12490] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12489] <... futex resumed>)        = 0
[pid 12489] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12490] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12489] <... futex resumed>)        = 0
[pid 12490] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12489] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12490] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12489] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12490] <... futex resumed>)        = 0
[pid 12489] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12490] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12489] <... futex resumed>)        = 0
[pid 12490] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12489] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12490] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12489] <... futex resumed>)        = 0
[pid 12490] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12489] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12490] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12489] <... futex resumed>)        = 0
[pid 12490] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12489] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12490] <... futex resumed>)        = 0
[pid 12489] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12490] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12489] exit_group(0)               = ?
[pid 12490] <... futex resumed>)        = ?
[pid 12490] +++ exited with 0 +++
[pid 12489] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12489, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12491
./strace-static-x86_64: Process 12491 attached
[pid 12491] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12491] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12491] setpgid(0, 0)               = 0
[pid 12491] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12491] write(3, "1000", 4)         = 4
[pid 12491] close(3)                    = 0
[pid 12491] write(1, "executing program\n", 18executing program
) = 18
[pid 12491] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12491] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12491] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12491] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12491] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12491] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12491] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12492 attached
 <unfinished ...>
[pid 12492] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12492] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12492] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12491] <... clone3 resumed> => {parent_tid=[12492]}, 88) = 12492
[pid 12491] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12491] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12492] <... futex resumed>)        = 0
[pid 12492] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12491] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12492] <... 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 12492] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12491] <... futex resumed>)        = 0
[pid 12491] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12491] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12492] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12492] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12491] <... futex resumed>)        = 0
[pid 12491] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12491] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12492] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12492] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12491] <... futex resumed>)        = 0
[pid 12491] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12491] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12492] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12492] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12491] <... futex resumed>)        = 0
[pid 12491] exit_group(0)               = ?
[pid 12492] +++ exited with 0 +++
[pid 12491] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12491, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12493
./strace-static-x86_64: Process 12493 attached
[pid 12493] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12493] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12493] setpgid(0, 0)               = 0
[pid 12493] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12493] write(3, "1000", 4)         = 4
[pid 12493] close(3)                    = 0
[pid 12493] write(1, "executing program\n", 18executing program
) = 18
[pid 12493] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12493] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12493] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12493] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12493] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12493] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12493] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12494 attached
 => {parent_tid=[12494]}, 88) = 12494
[pid 12494] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12493] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12494] <... set_robust_list resumed>) = 0
[pid 12493] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12494] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12493] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12494] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12493] <... futex resumed>)        = 0
[pid 12493] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12494] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12494] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12493] <... futex resumed>)        = 0
[pid 12494] <... futex resumed>)        = 1
[pid 12493] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12494] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12493] <... futex resumed>)        = 0
[pid 12493] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12494] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12494] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12493] <... futex resumed>)        = 0
[pid 12494] <... futex resumed>)        = 1
[pid 12493] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12494] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12493] <... futex resumed>)        = 0
[pid 12494] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12493] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12494] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12493] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12494] <... futex resumed>)        = 0
[pid 12493] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12493] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12494] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12494] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12493] <... futex resumed>)        = 0
[pid 12494] <... futex resumed>)        = 1
[pid 12493] exit_group(0 <unfinished ...>
[pid 12494] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12493] <... exit_group resumed>)   = ?
[pid 12494] <... futex resumed>)        = -1 (errno 18446744073709551414)
[pid 12494] +++ exited with 0 +++
[pid 12493] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12493, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12495
./strace-static-x86_64: Process 12495 attached
[pid 12495] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12495] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12495] setpgid(0, 0)               = 0
[pid 12495] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12495] write(3, "1000", 4)         = 4
[pid 12495] close(3)                    = 0
[pid 12495] write(1, "executing program\n", 18executing program
) = 18
[pid 12495] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12495] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12495] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12495] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12495] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12495] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12495] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12496 attached
 <unfinished ...>
[pid 12496] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12496] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12496] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12495] <... clone3 resumed> => {parent_tid=[12496]}, 88) = 12496
[pid 12495] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12495] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12496] <... futex resumed>)        = 0
[pid 12496] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12496] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12496] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12495] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12495] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12496] <... futex resumed>)        = 0
[pid 12496] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12496] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12496] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12495] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12495] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12496] <... futex resumed>)        = 0
[pid 12496] 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12496] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12495] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12495] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12496] <... futex resumed>)        = 0
[pid 12496] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12496] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12496] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12495] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12495] exit_group(0)               = ?
[pid 12496] <... futex resumed>)        = ?
[pid 12496] +++ exited with 0 +++
[pid 12495] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12495, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12497
./strace-static-x86_64: Process 12497 attached
[pid 12497] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12497] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12497] setpgid(0, 0)               = 0
[pid 12497] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12497] write(3, "1000", 4)         = 4
[pid 12497] close(3)                    = 0
executing program
[pid 12497] write(1, "executing program\n", 18) = 18
[pid 12497] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12497] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12497] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12497] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12497] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12497] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12497] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12498 attached
 => {parent_tid=[12498]}, 88) = 12498
[pid 12498] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12498] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12498] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12497] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12497] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12498] <... futex resumed>)        = 0
[pid 12498] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12498] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12498] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12497] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12497] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12498] <... futex resumed>)        = 0
[pid 12498] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12498] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12498] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12497] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12497] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12498] <... futex resumed>)        = 0
[pid 12498] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12498] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12498] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12497] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12497] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12498] <... futex resumed>)        = 0
[pid 12497] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12498] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12498] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12497] <... futex resumed>)        = 0
[pid 12498] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12497] exit_group(0)               = ?
[pid 12498] <... futex resumed>)        = ?
[pid 12498] +++ exited with 0 +++
[pid 12497] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12497, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12499
./strace-static-x86_64: Process 12499 attached
[pid 12499] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12499] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12499] setpgid(0, 0)               = 0
[pid 12499] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12499] write(3, "1000", 4)         = 4
[pid 12499] close(3)                    = 0
[pid 12499] write(1, "executing program\n", 18executing program
) = 18
[pid 12499] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12499] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12499] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12499] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12499] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12499] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12499] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12500 attached
 => {parent_tid=[12500]}, 88) = 12500
[pid 12500] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12500] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12500] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12499] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12499] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12500] <... futex resumed>)        = 0
[pid 12500] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12500] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12500] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12499] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12499] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12500] <... futex resumed>)        = 0
[pid 12500] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12500] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12500] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12499] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12499] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12500] <... futex resumed>)        = 0
[pid 12500] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12500] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12500] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12499] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12499] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12500] <... futex resumed>)        = 0
[pid 12500] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12499] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12500] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12500] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12500] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12499] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12499] exit_group(0)               = ?
[pid 12500] <... futex resumed>)        = ?
[pid 12500] +++ exited with 0 +++
[pid 12499] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12499, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12501
./strace-static-x86_64: Process 12501 attached
[pid 12501] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12501] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12501] setpgid(0, 0)               = 0
[pid 12501] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12501] write(3, "1000", 4)         = 4
[pid 12501] close(3)                    = 0
[pid 12501] write(1, "executing program\n", 18executing program
) = 18
[pid 12501] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12501] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12501] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12501] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12501] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12501] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12501] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12502 attached
 <unfinished ...>
[pid 12502] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12502] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12502] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12501] <... clone3 resumed> => {parent_tid=[12502]}, 88) = 12502
[pid 12501] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12501] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12502] <... futex resumed>)        = 0
[pid 12502] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12502] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12502] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12501] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12501] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12502] <... futex resumed>)        = 0
[pid 12502] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12502] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12502] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12501] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12501] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12502] <... futex resumed>)        = 0
[pid 12502] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12502] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12502] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12501] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12501] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12502] <... futex resumed>)        = 0
[pid 12502] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12502] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12502] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12501] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12501] exit_group(0)               = ?
[pid 12502] <... futex resumed>)        = ?
[pid 12502] +++ exited with 0 +++
[pid 12501] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12501, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12503
./strace-static-x86_64: Process 12503 attached
[pid 12503] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12503] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12503] setpgid(0, 0)               = 0
[pid 12503] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12503] write(3, "1000", 4)         = 4
[pid 12503] close(3)                    = 0
executing program
[pid 12503] write(1, "executing program\n", 18) = 18
[pid 12503] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12503] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12503] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12503] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12503] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12503] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12503] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12504 attached
 => {parent_tid=[12504]}, 88) = 12504
[pid 12503] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12503] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12503] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12504] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12504] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12504] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12504] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12503] <... futex resumed>)        = 0
[pid 12503] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12503] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12504] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12504] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12503] <... futex resumed>)        = 0
[pid 12503] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12503] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12504] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12504] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12503] <... futex resumed>)        = 0
[pid 12503] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12503] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12504] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12504] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12503] <... futex resumed>)        = 0
[pid 12503] exit_group(0)               = ?
[pid 12504] +++ exited with 0 +++
[pid 12503] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12503, si_uid=0, si_status=0, 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 12505 attached
, child_tidptr=0x55558842d690) = 12505
[pid 12505] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12505] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12505] setpgid(0, 0)               = 0
[pid 12505] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12505] write(3, "1000", 4)         = 4
[pid 12505] close(3)                    = 0
[pid 12505] write(1, "executing program\n", 18executing program
) = 18
[pid 12505] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12505] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12505] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12505] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12505] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12505] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12505] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12506 attached
 => {parent_tid=[12506]}, 88) = 12506
[pid 12506] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12506] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12506] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12505] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12505] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12506] <... futex resumed>)        = 0
[pid 12506] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12506] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12506] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12505] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12505] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12506] <... futex resumed>)        = 0
[pid 12506] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12505] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12506] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12506] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12505] <... futex resumed>)        = 0
[pid 12505] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12505] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12506] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12506] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12505] <... futex resumed>)        = 0
[pid 12505] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12506] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12505] <... futex resumed>)        = 0
[pid 12505] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12506] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12506] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12505] <... futex resumed>)        = 0
[pid 12506] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12505] exit_group(0)               = ?
[pid 12506] <... futex resumed>)        = ?
[pid 12506] +++ exited with 0 +++
[pid 12505] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12505, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12507
./strace-static-x86_64: Process 12507 attached
[pid 12507] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12507] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12507] setpgid(0, 0)               = 0
[pid 12507] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12507] write(3, "1000", 4)         = 4
[pid 12507] close(3executing program
)                    = 0
[pid 12507] write(1, "executing program\n", 18) = 18
[pid 12507] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12507] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12507] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12507] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12507] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12507] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12507] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12508]}, 88) = 12508
[pid 12507] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12507] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12507] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12508 attached
 <unfinished ...>
[pid 12508] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12508] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12508] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12508] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12507] <... futex resumed>)        = 0
[pid 12507] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12507] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12508] <... futex resumed>)        = 1
[pid 12508] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12508] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12507] <... futex resumed>)        = 0
[pid 12507] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12507] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12508] <... futex resumed>)        = 1
[pid 12508] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12508] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12507] <... futex resumed>)        = 0
[pid 12507] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12507] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12508] <... futex resumed>)        = 1
[pid 12508] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12508] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12507] <... futex resumed>)        = 0
[pid 12507] exit_group(0)               = ?
[pid 12508] <... futex resumed>)        = ?
[pid 12508] +++ exited with 0 +++
[pid 12507] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12507, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12509
./strace-static-x86_64: Process 12509 attached
[pid 12509] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12509] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12509] setpgid(0, 0)               = 0
[pid 12509] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12509] write(3, "1000", 4)         = 4
[pid 12509] close(3executing program
)                    = 0
[pid 12509] write(1, "executing program\n", 18) = 18
[pid 12509] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12509] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12509] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12509] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12509] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12509] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12509] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12510]}, 88) = 12510
[pid 12509] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12509] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12509] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12510 attached
 <unfinished ...>
[pid 12510] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12510] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12510] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12510] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12509] <... futex resumed>)        = 0
[pid 12509] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12509] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12510] <... futex resumed>)        = 1
[pid 12510] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12510] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12509] <... futex resumed>)        = 0
[pid 12509] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12509] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12510] <... futex resumed>)        = 1
[pid 12510] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12510] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12509] <... futex resumed>)        = 0
[pid 12509] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12509] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12510] <... futex resumed>)        = 1
[pid 12510] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12510] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12509] <... futex resumed>)        = 0
[pid 12509] exit_group(0)               = ?
[pid 12510] <... futex resumed>)        = ?
[pid 12510] +++ exited with 0 +++
[pid 12509] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12509, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12511
./strace-static-x86_64: Process 12511 attached
[pid 12511] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12511] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12511] setpgid(0, 0)               = 0
[pid 12511] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12511] write(3, "1000", 4)         = 4
[pid 12511] close(3)                    = 0
[pid 12511] write(1, "executing program\n", 18executing program
) = 18
[pid 12511] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12511] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12511] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12511] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12511] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12511] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12511] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12512 attached
 => {parent_tid=[12512]}, 88) = 12512
[pid 12512] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12511] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12512] <... set_robust_list resumed>) = 0
[pid 12511] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12512] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12511] <... futex resumed>)        = 0
[pid 12512] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12511] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12512] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12512] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12511] <... futex resumed>)        = 0
[pid 12511] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12511] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12512] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12512] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12511] <... futex resumed>)        = 0
[pid 12511] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12511] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12512] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12512] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12511] <... futex resumed>)        = 0
[pid 12511] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12511] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12512] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12512] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12511] <... futex resumed>)        = 0
[pid 12511] exit_group(0)               = ?
[pid 12512] +++ exited with 0 +++
[pid 12511] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12511, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12514
./strace-static-x86_64: Process 12514 attached
[pid 12514] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12514] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12514] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12515 attached
 => {parent_tid=[12515]}, 88) = 12515
[pid 12514] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12514] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12514] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12515] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12514] <... futex resumed>)        = 0
[pid 12514] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12514] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12515] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12515] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12514] <... futex resumed>)        = 0
[pid 12514] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12514] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12515] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12515] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12514] <... futex resumed>)        = 0
[pid 12514] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12514] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12515] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12515] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12514] <... futex resumed>)        = 0
[pid 12514] exit_group(0)               = ?
[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
 <unfinished ...>
[pid 12516] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12516] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12516] setpgid(0, 0)               = 0
[pid   555] <... clone resumed>, child_tidptr=0x55558842d690) = 12516
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12516] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12516] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12517 attached
 => {parent_tid=[12517]}, 88) = 12517
[pid 12516] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12516] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12516] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12517] set_robust_list(0x7fee38e679a0, 24) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12516] <... futex resumed>)        = 0
[pid 12516] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12516] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12517] <... futex resumed>)        = 1
[pid 12517] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12517] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12516] <... futex resumed>)        = 0
[pid 12516] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12516] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12517] <... futex resumed>)        = 1
[pid 12517] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12517] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12516] <... futex resumed>)        = 0
[pid 12516] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12516] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12517] <... futex resumed>)        = 1
[pid 12517] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12517] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12516] <... futex resumed>)        = 0
[pid 12516] exit_group(0)               = ?
[pid 12517] <... futex 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=0x55558842d690) = 12518
./strace-static-x86_64: Process 12518 attached
[pid 12518] set_robust_list(0x55558842d6a0, 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(3)                    = 0
[pid 12518] write(1, "executing program\n", 18executing program
) = 18
[pid 12518] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12518] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12518] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12519 attached
 => {parent_tid=[12519]}, 88) = 12519
[pid 12519] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12519] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12519] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12518] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12518] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12519] <... futex resumed>)        = 0
[pid 12519] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12519] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12518] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12518] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12519] <... futex resumed>)        = 0
[pid 12519] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12519] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12519] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12518] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12518] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12519] <... futex resumed>)        = 0
[pid 12519] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12519] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12519] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12518] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12518] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12519] <... futex resumed>)        = 0
[pid 12519] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12519] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12519] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12518] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12518] exit_group(0)               = ?
[pid 12519] <... futex 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, child_tidptr=0x55558842d690) = 12520
./strace-static-x86_64: Process 12520 attached
[pid 12520] set_robust_list(0x55558842d6a0, 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
executing program
[pid 12520] close(3)                    = 0
[pid 12520] write(1, "executing program\n", 18) = 18
[pid 12520] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12520] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12520] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12521 attached
 => {parent_tid=[12521]}, 88) = 12521
[pid 12520] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12521] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12520] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12521] <... set_robust_list resumed>) = 0
[pid 12520] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12521] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12520] <... futex resumed>)        = 0
[pid 12521] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12520] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12521] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12520] <... futex resumed>)        = 0
[pid 12520] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12521] <... futex resumed>)        = 0
[pid 12521] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12521] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12521] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12520] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12520] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12521] <... futex resumed>)        = 0
[pid 12521] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12521] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12521] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12520] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12520] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12521] <... futex resumed>)        = 0
[pid 12521] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12520] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12521] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12521] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12521] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12520] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12520] exit_group(0)               = ?
[pid 12521] <... futex 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./strace-static-x86_64: Process 12522 attached
, child_tidptr=0x55558842d690) = 12522
[pid 12522] set_robust_list(0x55558842d6a0, 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
[pid 12522] write(1, "executing program\n", 18executing program
) = 18
[pid 12522] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12522] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12522] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12523 attached
 <unfinished ...>
[pid 12523] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12523] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12523] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12522] <... clone3 resumed> => {parent_tid=[12523]}, 88) = 12523
[pid 12522] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12522] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12523] <... futex resumed>)        = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12523] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12522] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12522] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12523] <... futex resumed>)        = 0
[pid 12523] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12523] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12523] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12522] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12522] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12523] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12523] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12522] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12522] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12523] <... futex resumed>)        = 0
[pid 12523] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12523] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12523] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12522] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[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./strace-static-x86_64: Process 12524 attached
, child_tidptr=0x55558842d690) = 12524
[pid 12524] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12524] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12524] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12525 attached
 => {parent_tid=[12525]}, 88) = 12525
[pid 12525] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12524] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12525] <... set_robust_list resumed>) = 0
[pid 12524] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12525] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12524] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12525] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12524] <... futex resumed>)        = 0
[pid 12524] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12524] <... futex resumed>)        = 0
[pid 12525] <... futex resumed>)        = 1
[pid 12524] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12525] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12524] <... futex resumed>)        = 0
[pid 12524] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12525] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12525] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12524] <... futex resumed>)        = 0
[pid 12525] <... futex resumed>)        = 1
[pid 12524] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12525] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12524] <... futex resumed>)        = 0
[pid 12525] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12524] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12525] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12524] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12525] <... futex resumed>)        = 0
[pid 12524] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12524] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12525] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12525] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12524] <... futex resumed>)        = 0
[pid 12525] <... futex resumed>)        = 1
[pid 12524] exit_group(0 <unfinished ...>
[pid 12525] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12524] <... exit_group resumed>)   = ?
[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=0x55558842d690) = 12526
./strace-static-x86_64: Process 12526 attached
[pid 12526] set_robust_list(0x55558842d6a0, 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
[pid 12526] write(1, "executing program\n", 18executing program
) = 18
[pid 12526] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12526] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12526] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12527 attached
 => {parent_tid=[12527]}, 88) = 12527
[pid 12527] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12527] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12527] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12526] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12526] futex(0x7fee38f303e8, 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, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12527] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12526] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12526] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12527] <... futex resumed>)        = 0
[pid 12527] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12527] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12527] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12526] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12526] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12527] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12526] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12526] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12527] <... futex resumed>)        = 0
[pid 12526] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12527] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12527] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12527] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12526] <... futex resumed>)        = 0
[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, child_tidptr=0x55558842d690) = 12528
./strace-static-x86_64: Process 12528 attached
[pid 12528] set_robust_list(0x55558842d6a0, 24) = 0
[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", 18executing program
) = 18
[pid 12528] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12528] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12528] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12529 attached
 <unfinished ...>
[pid 12529] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12529] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12529] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12528] <... clone3 resumed> => {parent_tid=[12529]}, 88) = 12529
[pid 12528] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12528] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12529] <... futex resumed>)        = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12529] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12528] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12528] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12529] <... futex resumed>)        = 0
[pid 12529] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12529] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12529] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12528] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12528] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12529] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12529] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12528] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12528] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12529] <... futex resumed>)        = 0
[pid 12529] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12529] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12529] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12528] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12528] exit_group(0)               = ?
[pid 12529] <... futex resumed>)        = ?
[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=0x55558842d690) = 12530
./strace-static-x86_64: Process 12530 attached
[pid 12530] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12530] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12530] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12531 attached
 => {parent_tid=[12531]}, 88) = 12531
[pid 12531] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12530] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12531] <... set_robust_list resumed>) = 0
[pid 12530] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12531] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12530] <... futex resumed>)        = 0
[pid 12531] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12530] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12530] <... futex resumed>)        = 0
[pid 12531] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12530] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12531] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12530] <... futex resumed>)        = 0
[pid 12530] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12531] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12531] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12530] <... futex resumed>)        = 0
[pid 12530] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12530] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12530] <... futex resumed>)        = 0
[pid 12530] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12530] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12531] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12531] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12530] <... futex resumed>)        = 0
[pid 12530] exit_group(0)               = ?
[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./strace-static-x86_64: Process 12532 attached
, child_tidptr=0x55558842d690) = 12532
[pid 12532] set_robust_list(0x55558842d6a0, 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
[pid 12532] write(1, "executing program\n", 18executing program
) = 18
[pid 12532] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12532] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12532] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12533 attached
 => {parent_tid=[12533]}, 88) = 12533
[pid 12533] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12533] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12533] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12532] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12532] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12533] <... futex resumed>)        = 0
[pid 12532] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12533] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12532] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12532] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12533] <... futex resumed>)        = 0
[pid 12533] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12533] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12533] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12532] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12532] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12533] <... futex resumed>)        = 0
[pid 12532] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12533] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12532] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12532] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12533] <... futex resumed>)        = 0
[pid 12533] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12533] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12533] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12532] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12532] exit_group(0)               = ?
[pid 12533] <... futex resumed>)        = ?
[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=0x55558842d690) = 12534
./strace-static-x86_64: Process 12534 attached
[pid 12534] set_robust_list(0x55558842d6a0, 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(3executing program
)                    = 0
[pid 12534] write(1, "executing program\n", 18) = 18
[pid 12534] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12534] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12534] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12535 attached
 => {parent_tid=[12535]}, 88) = 12535
[pid 12534] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12534] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12534] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12535] set_robust_list(0x7fee38e679a0, 24) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12534] <... futex resumed>)        = 0
[pid 12534] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12534] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12535] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12535] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12534] <... futex resumed>)        = 0
[pid 12534] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12534] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12534] <... futex resumed>)        = 0
[pid 12534] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12534] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12535] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12535] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12534] <... futex resumed>)        = 0
[pid 12534] exit_group(0 <unfinished ...>
[pid 12535] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12534] <... exit_group resumed>)   = ?
[pid 12535] <... futex 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, child_tidptr=0x55558842d690) = 12536
./strace-static-x86_64: Process 12536 attached
[pid 12536] set_robust_list(0x55558842d6a0, 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(3)                    = 0
[pid 12536] write(1, "executing program\n", 18executing program
) = 18
[pid 12536] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12536] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12536] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12537]}, 88) = 12537
./strace-static-x86_64: Process 12537 attached
[pid 12537] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12537] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12537] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12536] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12536] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12537] <... futex resumed>)        = 0
[pid 12536] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12537] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12536] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12536] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12537] <... futex resumed>)        = 0
[pid 12537] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12537] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12537] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12536] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12536] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12537] <... futex resumed>)        = 0
[pid 12537] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12537] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12537] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12536] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12536] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12537] <... futex resumed>)        = 0
[pid 12537] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12537] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12537] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12536] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12536] exit_group(0)               = ?
[pid 12537] <... futex 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=0x55558842d690) = 12538
./strace-static-x86_64: Process 12538 attached
[pid 12538] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12538] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12538] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12539 attached
 => {parent_tid=[12539]}, 88) = 12539
[pid 12539] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12538] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12539] <... set_robust_list resumed>) = 0
[pid 12539] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12539] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12538] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12538] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12539] <... futex resumed>)        = 0
[pid 12538] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12538] <... futex resumed>)        = 0
[pid 12539] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12538] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12538] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12539] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12539] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12538] <... futex resumed>)        = 0
[pid 12539] <... futex resumed>)        = 1
[pid 12538] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12539] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12538] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12539] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12539] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12538] <... futex resumed>)        = 0
[pid 12539] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12538] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12539] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12538] <... futex resumed>)        = 0
[pid 12538] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12539] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12539] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12538] <... futex resumed>)        = 0
[pid 12539] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[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, child_tidptr=0x55558842d690) = 12540
./strace-static-x86_64: Process 12540 attached
[pid 12540] set_robust_list(0x55558842d6a0, 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(3)                    = 0
[pid 12540] write(1, "executing program\n", 18executing program
) = 18
[pid 12540] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12540] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12540] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12541 attached
 => {parent_tid=[12541]}, 88) = 12541
[pid 12541] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12541] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12541] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12540] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12540] futex(0x7fee38f303e8, 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(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12541] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12540] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12540] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12541] <... futex resumed>)        = 0
[pid 12541] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12540] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12541] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12541] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12541] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12540] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12540] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12541] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12541] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12540] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12540] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12541] <... futex resumed>)        = 0
[pid 12541] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12540] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12541] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12541] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12541] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12540] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12540] exit_group(0)               = ?
[pid 12541] <... futex resumed>)        = ?
[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, child_tidptr=0x55558842d690) = 12542
./strace-static-x86_64: Process 12542 attached
[pid 12542] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12542] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12542] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12543]}, 88) = 12543
[pid 12542] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
./strace-static-x86_64: Process 12543 attached
[pid 12542] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12543] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12542] <... futex resumed>)        = 0
[pid 12543] <... set_robust_list resumed>) = 0
[pid 12542] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12542] <... futex resumed>)        = 0
[pid 12542] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12542] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12543] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12543] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12542] <... futex resumed>)        = 0
[pid 12542] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12543] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12542] <... futex resumed>)        = 0
[pid 12542] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12543] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12543] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12542] <... futex resumed>)        = 0
[pid 12542] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12543] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12542] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12543] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12543] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12542] <... futex resumed>)        = 0
[pid 12543] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[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=0x55558842d690) = 12544
./strace-static-x86_64: Process 12544 attached
[pid 12544] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12544] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12544] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12545 attached
 <unfinished ...>
[pid 12545] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12544] <... clone3 resumed> => {parent_tid=[12545]}, 88) = 12545
[pid 12545] <... set_robust_list resumed>) = 0
[pid 12545] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12545] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12544] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12544] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12545] <... futex resumed>)        = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12545] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12544] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12544] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12545] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12544] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12544] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12545] <... futex resumed>)        = 0
[pid 12544] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12544] <... futex resumed>)        = 0
[pid 12544] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12544] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12545] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12545] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12544] <... futex resumed>)        = 0
[pid 12545] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[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=0x55558842d690) = 12546
./strace-static-x86_64: Process 12546 attached
[pid 12546] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12546] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12546] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12547 attached
 => {parent_tid=[12547]}, 88) = 12547
[pid 12547] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12547] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12547] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12546] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12546] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12547] <... futex resumed>)        = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12547] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12546] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12546] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12547] <... futex resumed>)        = 0
[pid 12547] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12547] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12547] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12546] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12546] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12547] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12547] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12546] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12546] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12547] <... futex resumed>)        = 0
[pid 12547] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12547] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12547] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12546] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12546] exit_group(0)               = ?
[pid 12547] <... futex resumed>)        = ?
[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=0x55558842d690) = 12548
./strace-static-x86_64: Process 12548 attached
[pid 12548] set_robust_list(0x55558842d6a0, 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
[pid 12548] write(1, "executing program\n", 18executing program
) = 18
[pid 12548] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12548] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12548] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12549 attached
 => {parent_tid=[12549]}, 88) = 12549
[pid 12549] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12548] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12549] <... set_robust_list resumed>) = 0
[pid 12548] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12549] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12548] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12549] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12548] <... futex resumed>)        = 0
[pid 12548] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12548] <... futex resumed>)        = 0
[pid 12549] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12548] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12549] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12548] <... futex resumed>)        = 0
[pid 12549] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12548] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12549] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12549] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12548] <... futex resumed>)        = 0
[pid 12549] <... futex resumed>)        = 1
[pid 12548] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12549] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12548] <... futex resumed>)        = 0
[pid 12548] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12549] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12549] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12548] <... futex resumed>)        = 0
[pid 12549] <... futex resumed>)        = 1
[pid 12548] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12548] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12548] <... futex resumed>)        = 0
[pid 12549] <... futex resumed>)        = 1
[pid 12549] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12548] exit_group(0)               = ?
[pid 12549] <... futex resumed>)        = 231
[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=0x55558842d690) = 12550
./strace-static-x86_64: Process 12550 attached
[pid 12550] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12550] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12550] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12551 attached
 => {parent_tid=[12551]}, 88) = 12551
[pid 12551] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12551] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12551] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12550] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12550] futex(0x7fee38f303e8, 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 <unfinished ...>
[pid 12550] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12551] <... 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 12551] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12551] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12550] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12550] futex(0x7fee38f303e8, 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 12550] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12551] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12551] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12550] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12550] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12550] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12551] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12550] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12550] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12551] <... futex resumed>)        = 0
[pid 12551] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12551] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12551] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12550] futex(0x7fee38f303ec, 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=0x55558842d690) = 12552
./strace-static-x86_64: Process 12552 attached
[pid 12552] set_robust_list(0x55558842d6a0, 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
executing program
[pid 12552] write(1, "executing program\n", 18) = 18
[pid 12552] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12552] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12552] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12553]}, 88) = 12553
./strace-static-x86_64: Process 12553 attached
[pid 12552] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12553] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12552] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12553] <... set_robust_list resumed>) = 0
[pid 12552] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12553] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12552] <... futex resumed>)        = 0
[pid 12553] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12553] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12552] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12553] <... 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 12553] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12552] <... futex resumed>)        = 0
[pid 12552] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12552] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12553] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12553] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12552] <... futex resumed>)        = 0
[pid 12552] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12552] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12552] <... futex resumed>)        = 0
[pid 12552] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12552] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12553] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12553] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12552] <... futex resumed>)        = 0
[pid 12552] exit_group(0)               = ?
[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./strace-static-x86_64: Process 12554 attached
, child_tidptr=0x55558842d690) = 12554
[pid 12554] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12554] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12554] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12555 attached
 <unfinished ...>
[pid 12555] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12555] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12555] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12554] <... clone3 resumed> => {parent_tid=[12555]}, 88) = 12555
[pid 12554] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12554] futex(0x7fee38f303e8, 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, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12555] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12554] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12554] futex(0x7fee38f303e8, 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 12555] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12555] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12554] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12554] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12555] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12555] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12554] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12554] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12555] <... futex resumed>)        = 0
[pid 12555] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12555] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12555] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12554] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12554] exit_group(0)               = ?
[pid 12555] <... futex resumed>)        = ?
[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=0x55558842d690) = 12556
./strace-static-x86_64: Process 12556 attached
[pid 12556] set_robust_list(0x55558842d6a0, 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
[pid 12556] write(1, "executing program\n", 18executing program
) = 18
[pid 12556] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12556] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12556] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12557 attached
 => {parent_tid=[12557]}, 88) = 12557
[pid 12556] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12556] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12556] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12557] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12556] <... futex resumed>)        = 0
[pid 12556] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12556] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12557] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12557] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12556] <... futex resumed>)        = 0
[pid 12556] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12556] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12557] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12557] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12556] <... futex resumed>)        = 0
[pid 12556] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12556] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12557] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12557] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12556] <... futex resumed>)        = 0
[pid 12556] exit_group(0)               = ?
[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=0x55558842d690) = 12558
./strace-static-x86_64: Process 12558 attached
[pid 12558] set_robust_list(0x55558842d6a0, 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
executing program
[pid 12558] write(1, "executing program\n", 18) = 18
[pid 12558] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12558] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12558] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12559 attached
 => {parent_tid=[12559]}, 88) = 12559
[pid 12558] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12558] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12558] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12559] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12558] <... futex resumed>)        = 0
[pid 12558] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12558] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12559] <... futex resumed>)        = 1
[pid 12559] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12559] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12558] <... futex resumed>)        = 0
[pid 12558] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12558] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12559] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12558] <... futex resumed>)        = 0
[pid 12558] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12558] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12559] <... futex resumed>)        = 1
[pid 12559] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12559] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12558] <... futex resumed>)        = 0
[pid 12558] exit_group(0)               = ?
[pid 12559] <... futex resumed>)        = ?
[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=0x55558842d690) = 12560
./strace-static-x86_64: Process 12560 attached
[pid 12560] set_robust_list(0x55558842d6a0, 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(3executing program
)                    = 0
[pid 12560] write(1, "executing program\n", 18) = 18
[pid 12560] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12560] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12560] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12561]}, 88) = 12561
[pid 12560] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12560] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12560] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12561 attached
 <unfinished ...>
[pid 12561] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12561] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12560] <... futex resumed>)        = 0
[pid 12560] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12560] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12561] <... futex resumed>)        = 1
[pid 12561] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12561] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12560] <... futex resumed>)        = 0
[pid 12560] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12560] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12561] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12560] <... futex resumed>)        = 0
[pid 12560] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12560] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12561] <... futex resumed>)        = 1
[pid 12561] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12561] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12560] <... futex resumed>)        = 0
[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=0x55558842d690) = 12562
./strace-static-x86_64: Process 12562 attached
[pid 12562] set_robust_list(0x55558842d6a0, 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(3executing program
)                    = 0
[pid 12562] write(1, "executing program\n", 18) = 18
[pid 12562] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12562] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12562] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12563]}, 88) = 12563
[pid 12562] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12562] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12562] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12563 attached
 <unfinished ...>
[pid 12563] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12563] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12562] <... futex resumed>)        = 0
[pid 12562] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12562] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12563] <... futex resumed>)        = 1
[pid 12563] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12563] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12562] <... futex resumed>)        = 0
[pid 12562] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12562] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12563] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12562] <... futex resumed>)        = 0
[pid 12562] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12562] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12563] <... futex resumed>)        = 1
[pid 12563] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12563] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12562] <... futex resumed>)        = 0
[pid 12562] exit_group(0)               = ?
[pid 12563] <... futex resumed>)        = ?
[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=0x55558842d690) = 12564
./strace-static-x86_64: Process 12564 attached
[pid 12564] set_robust_list(0x55558842d6a0, 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(3executing program
)                    = 0
[pid 12564] write(1, "executing program\n", 18) = 18
[pid 12564] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12564] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12564] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12565 attached
 <unfinished ...>
[pid 12565] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12564] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12564] futex(0x7fee38f303e8, 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, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12565] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12564] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12564] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12565] <... futex resumed>)        = 0
[pid 12565] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12565] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12565] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12564] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12564] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12565] <... futex resumed>)        = 0
[pid 12565] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12565] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12565] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12564] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12564] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12565] <... futex resumed>)        = 0
[pid 12565] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12565] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12565] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12564] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12564] exit_group(0)               = ?
[pid 12565] <... futex resumed>)        = ?
[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=0x55558842d690) = 12566
./strace-static-x86_64: Process 12566 attached
[pid 12566] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12566] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12566] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12567 attached
 <unfinished ...>
[pid 12567] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12567] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12567] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12566] <... clone3 resumed> => {parent_tid=[12567]}, 88) = 12567
[pid 12566] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12566] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12567] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12566] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12566] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12567] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12566] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12566] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12567] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12566] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12566] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12567] <... futex resumed>)        = 0
[pid 12567] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12567] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12567] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12566] futex(0x7fee38f303ec, 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=0x55558842d690) = 12568
./strace-static-x86_64: Process 12568 attached
[pid 12568] set_robust_list(0x55558842d6a0, 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
[pid 12568] write(1, "executing program\n", 18) = 18
executing program
[pid 12568] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12568] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12568] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12569]}, 88) = 12569
[pid 12568] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12568] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12568] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12569 attached
 <unfinished ...>
[pid 12569] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12568] <... futex resumed>)        = 0
[pid 12568] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12568] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12569] <... futex resumed>)        = 1
[pid 12569] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12569] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12568] <... futex resumed>)        = 0
[pid 12568] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12568] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12569] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12568] <... futex resumed>)        = 0
[pid 12568] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12568] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12569] <... futex resumed>)        = 1
[pid 12569] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12569] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12568] <... futex resumed>)        = 0
[pid 12568] exit_group(0)               = ?
[pid 12569] <... futex resumed>)        = ?
[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./strace-static-x86_64: Process 12570 attached
, child_tidptr=0x55558842d690) = 12570
[pid 12570] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12570] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12570] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12571 attached
 <unfinished ...>
[pid 12571] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12571] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12571] futex(0x7fee38f303e8, 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(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12571] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12570] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12570] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12571] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12570] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12570] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12571] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12570] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12570] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12571] <... futex resumed>)        = 0
[pid 12571] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12570] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12571] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12571] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12570] <... futex resumed>)        = 0
[pid 12570] exit_group(0)               = ?
[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./strace-static-x86_64: Process 12572 attached
, child_tidptr=0x55558842d690) = 12572
[pid 12572] set_robust_list(0x55558842d6a0, 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(3)                    = 0
[pid 12572] write(1, "executing program\n", 18executing program
) = 18
[pid 12572] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12572] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12572] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12573 attached
 => {parent_tid=[12573]}, 88) = 12573
[pid 12572] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12572] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12572] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12573] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12573] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12573] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12572] <... futex resumed>)        = 0
[pid 12572] futex(0x7fee38f303e8, 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 12572] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12573] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12572] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12573] <... futex resumed>)        = 0
[pid 12573] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12572] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12573] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12572] <... futex resumed>)        = 0
[pid 12573] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12572] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12573] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12573] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12572] <... futex resumed>)        = 0
[pid 12572] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12572] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12573] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12573] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12572] <... futex resumed>)        = 0
[pid 12572] exit_group(0)               = ?
[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, child_tidptr=0x55558842d690) = 12574
./strace-static-x86_64: Process 12574 attached
[pid 12574] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12574] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12574] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12575 attached
 => {parent_tid=[12575]}, 88) = 12575
[pid 12575] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12575] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12575] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12574] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12574] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12575] <... futex resumed>)        = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12575] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12574] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12574] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12575] <... futex resumed>)        = 0
[pid 12575] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12575] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12575] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12574] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12574] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12575] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12575] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12574] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12574] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12575] <... futex resumed>)        = 0
[pid 12575] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12575] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12575] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12574] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12574] exit_group(0)               = ?
[pid 12575] <... futex resumed>)        = ?
[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, child_tidptr=0x55558842d690) = 12576
./strace-static-x86_64: Process 12576 attached
[pid 12576] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12576] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12576] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12577 attached
 => {parent_tid=[12577]}, 88) = 12577
[pid 12577] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12577] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12577] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12576] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12576] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12577] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12576] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12576] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12577] <... futex resumed>)        = 0
[pid 12577] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12577] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12577] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12576] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12576] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12577] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12577] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12576] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12576] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12577] <... futex resumed>)        = 0
[pid 12577] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12577] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12577] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12576] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[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=0x55558842d690) = 12578
./strace-static-x86_64: Process 12578 attached
[pid 12578] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12578] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12578] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12579 attached
 => {parent_tid=[12579]}, 88) = 12579
[pid 12579] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12578] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12579] <... set_robust_list resumed>) = 0
[pid 12578] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12579] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12578] <... futex resumed>)        = 0
[pid 12579] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12578] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12579] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12578] <... futex resumed>)        = 0
[pid 12578] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12578] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12578] <... futex resumed>)        = 0
[pid 12578] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12578] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12578] <... futex resumed>)        = 0
[pid 12578] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12578] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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, child_tidptr=0x55558842d690) = 12580
./strace-static-x86_64: Process 12580 attached
[pid 12580] set_robust_list(0x55558842d6a0, 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) = 3
[pid 12580] write(3, "1000", 4)         = 4
[pid 12580] close(3)                    = 0
[pid 12580] write(1, "executing program\n", 18executing program
) = 18
[pid 12580] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12580] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12580] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12581 attached
 <unfinished ...>
[pid 12581] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12581] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12581] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12580] <... clone3 resumed> => {parent_tid=[12581]}, 88) = 12581
[pid 12580] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12580] futex(0x7fee38f303e8, 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 12581] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12581] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12580] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12580] futex(0x7fee38f303e8, 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 12581] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12581] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12580] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12580] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12581] <... futex resumed>)        = 0
[pid 12581] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12581] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12581] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12580] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12580] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12581] <... futex resumed>)        = 0
[pid 12581] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12581] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12581] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12580] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[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=0x55558842d690) = 12582
./strace-static-x86_64: Process 12582 attached
[pid 12582] set_robust_list(0x55558842d6a0, 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(3)                    = 0
[pid 12582] write(1, "executing program\n", 18executing program
) = 18
[pid 12582] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12582] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12582] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12583 attached
 => {parent_tid=[12583]}, 88) = 12583
[pid 12583] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12583] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12583] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12582] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12582] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12583] <... futex resumed>)        = 0
[pid 12583] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12582] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12583] <... 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 12583] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12582] <... futex resumed>)        = 0
[pid 12582] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12582] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12583] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12583] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12582] <... futex resumed>)        = 0
[pid 12582] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12582] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12583] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12583] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12582] <... futex resumed>)        = 0
[pid 12582] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12582] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12583] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12583] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12582] <... futex resumed>)        = 0
[pid 12582] exit_group(0)               = ?
[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, child_tidptr=0x55558842d690) = 12584
./strace-static-x86_64: Process 12584 attached
[pid 12584] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12584] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12584] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12585 attached
 => {parent_tid=[12585]}, 88) = 12585
[pid 12585] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12584] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12584] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12584] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12585] <... set_robust_list resumed>) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12584] <... futex resumed>)        = 0
[pid 12584] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12584] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12585] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12584] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12584] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12584] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12585] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12584] <... futex resumed>)        = 0
[pid 12584] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12584] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12584] <... futex resumed>)        = 0
[pid 12584] exit_group(0 <unfinished ...>
[pid 12585] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12584] <... exit_group resumed>)   = ?
[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=0x55558842d690) = 12586
./strace-static-x86_64: Process 12586 attached
[pid 12586] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12586] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12586] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12587 attached
 => {parent_tid=[12587]}, 88) = 12587
[pid 12586] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12586] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12586] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12587] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12587] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12586] <... futex resumed>)        = 0
[pid 12586] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12586] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12587] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12587] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12586] <... futex resumed>)        = 0
[pid 12586] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12586] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12586] <... futex resumed>)        = 0
[pid 12586] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12586] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12587] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12587] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12586] <... futex resumed>)        = 0
[pid 12586] exit_group(0)               = ?
[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./strace-static-x86_64: Process 12588 attached
, child_tidptr=0x55558842d690) = 12588
[pid 12588] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12588] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12588] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12589 attached
 => {parent_tid=[12589]}, 88) = 12589
[pid 12589] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12589] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12589] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12588] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12588] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12589] <... futex resumed>)        = 0
[pid 12588] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12589] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12588] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12588] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12589] <... futex resumed>)        = 0
[pid 12588] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12589] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12588] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12588] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12589] <... futex resumed>)        = 0
[pid 12589] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12588] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12589] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12589] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12589] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12588] <... futex resumed>)        = 0
[pid 12588] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12589] <... futex resumed>)        = 0
[pid 12588] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12588] <... futex resumed>)        = 0
[pid 12589] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12588] exit_group(0)               = ?
[pid 12589] <... futex resumed>)        = 231
[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, child_tidptr=0x55558842d690) = 12590
./strace-static-x86_64: Process 12590 attached
[pid 12590] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12590] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12590] setpgid(0, 0)               = 0
[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
[pid 12590] write(1, "executing program\n", 18executing program
) = 18
[pid 12590] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12590] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12590] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12591 attached
 => {parent_tid=[12591]}, 88) = 12591
[pid 12591] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12591] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12591] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12590] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12590] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12591] <... futex resumed>)        = 0
[pid 12590] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12591] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12590] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12590] futex(0x7fee38f303e8, 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 12591] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12591] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12590] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12590] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12591] <... futex resumed>)        = 0
[pid 12591] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12591] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12591] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12590] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12590] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12591] <... futex resumed>)        = 0
[pid 12591] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12591] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12591] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12590] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -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=0x55558842d690) = 12592
./strace-static-x86_64: Process 12592 attached
[pid 12592] set_robust_list(0x55558842d6a0, 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
executing program
[pid 12592] close(3)                    = 0
[pid 12592] write(1, "executing program\n", 18) = 18
[pid 12592] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12592] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12592] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12593 attached
 => {parent_tid=[12593]}, 88) = 12593
[pid 12592] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12592] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12592] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12593] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12592] <... futex resumed>)        = 0
[pid 12592] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12592] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12593] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12593] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12592] <... futex resumed>)        = 0
[pid 12592] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12592] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12593] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12593] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12592] <... futex resumed>)        = 0
[pid 12592] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12592] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12593] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12593] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12592] <... futex resumed>)        = 0
[pid 12592] exit_group(0 <unfinished ...>
[pid 12593] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12592] <... exit_group resumed>)   = ?
[pid 12593] <... futex 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=0x55558842d690) = 12594
./strace-static-x86_64: Process 12594 attached
[pid 12594] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12594] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12594] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12595]}, 88) = 12595
./strace-static-x86_64: Process 12595 attached
[pid 12595] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12595] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12595] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12594] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12594] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12595] <... futex resumed>)        = 0
[pid 12595] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12594] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12595] <... 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 12595] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12595] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12594] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12594] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12594] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12595] <... futex resumed>)        = 0
[pid 12595] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12595] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12594] <... futex resumed>)        = 0
[pid 12594] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12594] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12595] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12595] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12594] <... futex resumed>)        = 0
[pid 12594] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12594] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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./strace-static-x86_64: Process 12596 attached
, child_tidptr=0x55558842d690) = 12596
[pid 12596] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12596] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12596] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12597]}, 88) = 12597
[pid 12596] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12596] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12596] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12597 attached
 <unfinished ...>
[pid 12597] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12597] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12596] <... futex resumed>)        = 0
[pid 12596] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12596] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12597] <... futex resumed>)        = 1
[pid 12597] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12597] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12596] <... futex resumed>)        = 0
[pid 12597] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12596] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12596] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12597] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12597] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12596] <... futex resumed>)        = 0
[pid 12596] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12596] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12597] <... futex resumed>)        = 1
[pid 12597] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12597] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12596] <... futex resumed>)        = 0
[pid 12596] exit_group(0)               = ?
[pid 12597] <... futex resumed>)        = ?
[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=0x55558842d690) = 12598
./strace-static-x86_64: Process 12598 attached
[pid 12598] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12598] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12598] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12599 attached
 => {parent_tid=[12599]}, 88) = 12599
[pid 12599] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12599] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12599] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12598] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12598] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12599] <... futex resumed>)        = 0
[pid 12598] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12599] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12598] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12598] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12599] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12598] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12598] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12599] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12598] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12598] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12599] <... futex resumed>)        = 0
[pid 12598] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12599] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12599] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12599] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12598] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12598] exit_group(0 <unfinished ...>
[pid 12599] <... futex resumed>)        = ? <unavailable>
[pid 12598] <... exit_group 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./strace-static-x86_64: Process 12600 attached
, child_tidptr=0x55558842d690) = 12600
[pid 12600] set_robust_list(0x55558842d6a0, 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(3)                    = 0
[pid 12600] write(1, "executing program\n", 18executing program
) = 18
[pid 12600] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12600] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12600] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12601 attached
 => {parent_tid=[12601]}, 88) = 12601
[pid 12601] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12600] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12601] <... set_robust_list resumed>) = 0
[pid 12600] futex(0x7fee38f303e8, 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 12601] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12600] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12601] <... 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 12601] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12600] <... futex resumed>)        = 0
[pid 12600] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12600] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12600] <... futex resumed>)        = 0
[pid 12600] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12600] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12600] <... futex resumed>)        = 0
[pid 12600] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12600] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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=0x55558842d690) = 12602
./strace-static-x86_64: Process 12602 attached
[pid 12602] set_robust_list(0x55558842d6a0, 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(3)                    = 0
[pid 12602] write(1, "executing program\n", 18executing program
) = 18
[pid 12602] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12602] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12602] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12603 attached
 => {parent_tid=[12603]}, 88) = 12603
[pid 12603] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12603] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12603] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12602] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12602] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12603] <... futex resumed>)        = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12603] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12602] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12602] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12603] <... futex resumed>)        = 0
[pid 12603] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12603] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12603] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12602] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12602] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12603] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12603] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12602] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12602] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12603] <... futex resumed>)        = 0
[pid 12603] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12603] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12603] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12602] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12604
./strace-static-x86_64: Process 12604 attached
[pid 12604] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12604] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12604] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12605 attached
 <unfinished ...>
[pid 12605] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12604] <... clone3 resumed> => {parent_tid=[12605]}, 88) = 12605
[pid 12604] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12605] <... set_robust_list resumed>) = 0
[pid 12604] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12604] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12604] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12604] <... futex resumed>)        = 0
[pid 12604] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12604] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12604] <... futex resumed>)        = 0
[pid 12604] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12604] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12604] <... futex resumed>)        = 0
[pid 12604] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12604] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12604] <... futex resumed>)        = 0
[pid 12604] exit_group(0 <unfinished ...>
[pid 12605] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12604] <... exit_group resumed>)   = ?
[pid 12605] <... futex resumed>)        = ?
[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, child_tidptr=0x55558842d690) = 12606
./strace-static-x86_64: Process 12606 attached
[pid 12606] set_robust_list(0x55558842d6a0, 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
executing program
[pid 12606] write(1, "executing program\n", 18) = 18
[pid 12606] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12606] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12606] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12607]}, 88) = 12607
[pid 12606] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12606] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
./strace-static-x86_64: Process 12607 attached
[pid 12606] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12607] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12607] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12606] <... futex resumed>)        = 0
[pid 12606] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12607] <... futex resumed>)        = 0
[pid 12606] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12606] <... futex resumed>)        = 0
[pid 12607] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12606] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12607] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12607] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12606] <... futex resumed>)        = 0
[pid 12607] <... futex resumed>)        = 0
[pid 12606] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12607] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12606] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12606] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12607] <... futex resumed>)        = 0
[pid 12606] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12607] futex(0x7fee38f303e8, 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=1} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12608
./strace-static-x86_64: Process 12608 attached
[pid 12608] set_robust_list(0x55558842d6a0, 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(3)                    = 0
[pid 12608] write(1, "executing program\n", 18executing program
) = 18
[pid 12608] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12608] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12608] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12609 attached
 => {parent_tid=[12609]}, 88) = 12609
[pid 12608] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12608] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12608] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12609] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12608] <... futex resumed>)        = 0
[pid 12608] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12608] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12609] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12609] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12608] <... futex resumed>)        = 0
[pid 12608] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12608] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12608] <... futex resumed>)        = 0
[pid 12608] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12608] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12609] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12609] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12608] <... futex resumed>)        = 0
[pid 12608] exit_group(0)               = ?
[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=0x55558842d690) = 12610
./strace-static-x86_64: Process 12610 attached
[pid 12610] set_robust_list(0x55558842d6a0, 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
[pid 12610] close(3)                    = 0
[pid 12610] write(1, "executing program\n", 18executing program
) = 18
[pid 12610] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12610] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12610] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12611 attached
 <unfinished ...>
[pid 12611] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12611] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12611] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12610] <... clone3 resumed> => {parent_tid=[12611]}, 88) = 12611
[pid 12610] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12610] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12611] <... futex resumed>)        = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12611] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12610] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12610] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12611] <... futex resumed>)        = 0
[pid 12611] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12611] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12611] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12610] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12610] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12611] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12611] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12610] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12610] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12611] <... futex resumed>)        = 0
[pid 12611] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12611] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12611] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12610] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12610] exit_group(0)               = ?
[pid 12611] <... futex resumed>)        = ?
[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=0x55558842d690) = 12612
./strace-static-x86_64: Process 12612 attached
[pid 12612] set_robust_list(0x55558842d6a0, 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(3)                    = 0
executing program
[pid 12612] write(1, "executing program\n", 18) = 18
[pid 12612] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12612] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12612] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12613 attached
 => {parent_tid=[12613]}, 88) = 12613
[pid 12613] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12613] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12613] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12612] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12612] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12613] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12612] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12612] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12613] <... futex resumed>)        = 0
[pid 12613] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12613] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12613] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12612] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12612] futex(0x7fee38f303e8, 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) = -1 EBADF (Bad file descriptor)
[pid 12613] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12613] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12612] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12612] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12613] <... futex resumed>)        = 0
[pid 12613] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12613] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12613] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12612] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[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=0x55558842d690) = 12614
./strace-static-x86_64: Process 12614 attached
[pid 12614] set_robust_list(0x55558842d6a0, 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
[pid 12614] close(3)                    = 0
[pid 12614] write(1, "executing program\n", 18executing program
) = 18
[pid 12614] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12614] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12614] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12615 attached
 => {parent_tid=[12615]}, 88) = 12615
[pid 12615] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12615] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12615] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12614] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12614] futex(0x7fee38f303e8, 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, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12615] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12614] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12614] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12615] <... futex resumed>)        = 0
[pid 12615] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12615] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12615] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12614] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12614] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12615] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12614] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12614] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12615] <... futex resumed>)        = 0
[pid 12615] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12615] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12615] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12614] futex(0x7fee38f303ec, 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=0x55558842d690) = 12616
./strace-static-x86_64: Process 12616 attached
[pid 12616] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12616] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12616] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12617 attached
 => {parent_tid=[12617]}, 88) = 12617
[pid 12617] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12617] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12617] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12616] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12616] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12617] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12616] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12616] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12617] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12616] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12616] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12617] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12616] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12616] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12617] <... futex resumed>)        = 0
[pid 12617] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12617] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12617] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12616] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -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./strace-static-x86_64: Process 12618 attached
, child_tidptr=0x55558842d690) = 12618
[pid 12618] set_robust_list(0x55558842d6a0, 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
[pid 12618] write(1, "executing program\n", 18executing program
) = 18
[pid 12618] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12618] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12618] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12619 attached
 => {parent_tid=[12619]}, 88) = 12619
[pid 12619] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12618] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12619] <... set_robust_list resumed>) = 0
[pid 12618] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12619] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12618] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12619] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12618] <... futex resumed>)        = 0
[pid 12619] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12618] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12618] <... futex resumed>)        = 0
[pid 12618] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12618] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12618] <... futex resumed>)        = 0
[pid 12618] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12619] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12618] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12619] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12619] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12618] <... futex resumed>)        = 0
[pid 12618] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12618] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12618] <... futex resumed>)        = 0
[pid 12619] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12618] exit_group(0)               = ?
[pid 12619] <... futex resumed>)        = ?
[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./strace-static-x86_64: Process 12620 attached
, child_tidptr=0x55558842d690) = 12620
[pid 12620] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12620] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12620] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12621 attached
 <unfinished ...>
[pid 12621] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12620] <... clone3 resumed> => {parent_tid=[12621]}, 88) = 12621
[pid 12620] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12621] <... set_robust_list resumed>) = 0
[pid 12620] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12621] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12620] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12621] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12620] <... 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(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12620] <... futex resumed>)        = 0
[pid 12620] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12620] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12620] <... futex resumed>)        = 0
[pid 12620] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12620] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12620] <... futex resumed>)        = 0
[pid 12620] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12620] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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./strace-static-x86_64: Process 12622 attached
, child_tidptr=0x55558842d690) = 12622
[pid 12622] set_robust_list(0x55558842d6a0, 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
[pid 12622] write(1, "executing program\n", 18executing program
) = 18
[pid 12622] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12622] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12622] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12623 attached
 => {parent_tid=[12623]}, 88) = 12623
[pid 12623] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12623] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12623] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12622] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12622] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12623] <... futex resumed>)        = 0
[pid 12623] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12622] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12623] <... 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 12623] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12623] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12622] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12622] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12623] <... futex resumed>)        = 0
[pid 12623] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12623] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12623] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12622] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12622] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12623] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12623] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12622] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12622] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12623] <... futex resumed>)        = 0
[pid 12623] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12622] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12623] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12623] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12623] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12622] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[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=0x55558842d690) = 12624
./strace-static-x86_64: Process 12624 attached
[pid 12624] set_robust_list(0x55558842d6a0, 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
executing program
[pid 12624] write(1, "executing program\n", 18) = 18
[pid 12624] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12624] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12624] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12625 attached
 => {parent_tid=[12625]}, 88) = 12625
[pid 12624] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12624] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12624] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12625] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12624] <... futex resumed>)        = 0
[pid 12624] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12624] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12624] <... futex resumed>)        = 0
[pid 12624] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12624] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12624] <... futex resumed>)        = 0
[pid 12624] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12624] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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=0x55558842d690) = 12626
./strace-static-x86_64: Process 12626 attached
[pid 12626] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12626] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12626] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12627 attached
 => {parent_tid=[12627]}, 88) = 12627
[pid 12627] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12627] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12627] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12626] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12626] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12627] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12626] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12626] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12627] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12626] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12626] futex(0x7fee38f303e8, 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) = -1 EBADF (Bad file descriptor)
[pid 12627] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12627] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12626] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12626] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12627] <... futex resumed>)        = 0
[pid 12627] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12627] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12627] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12626] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -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=0x55558842d690) = 12628
./strace-static-x86_64: Process 12628 attached
[pid 12628] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12628] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12628] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12629 attached
 => {parent_tid=[12629]}, 88) = 12629
[pid 12629] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12629] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12629] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12628] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12628] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12629] <... futex resumed>)        = 0
[pid 12629] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12628] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12629] <... 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 12629] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12629] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12628] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12628] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12629] <... futex resumed>)        = 0
[pid 12628] <... futex resumed>)        = 1
[pid 12629] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12629] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12629] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12628] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12628] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12629] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12629] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12628] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12628] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12629] <... futex resumed>)        = 0
[pid 12629] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12628] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12629] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12629] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12629] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12628] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12628] exit_group(0)               = ?
[pid 12629] <... futex resumed>)        = ?
[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=0x55558842d690) = 12630
./strace-static-x86_64: Process 12630 attached
[pid 12630] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12630] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12630] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12631 attached
 => {parent_tid=[12631]}, 88) = 12631
[pid 12631] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12631] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12631] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12630] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12630] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12631] <... futex resumed>)        = 0
[pid 12631] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12630] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12631] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12630] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12630] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12631] <... futex resumed>)        = 0
[pid 12631] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12630] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12631] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12631] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12630] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12630] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12631] <... futex resumed>)        = 0
[pid 12631] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12631] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12631] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12630] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12630] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12631] <... futex resumed>)        = 0
[pid 12631] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12630] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12631] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12631] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12631] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12630] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12630] exit_group(0)               = ?
[pid 12631] <... futex resumed>)        = ?
[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, child_tidptr=0x55558842d690) = 12632
./strace-static-x86_64: Process 12632 attached
[pid 12632] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12632] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12632] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12633 attached
 => {parent_tid=[12633]}, 88) = 12633
[pid 12632] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12632] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12632] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12633] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12633] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12633] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12632] <... futex resumed>)        = 0
[pid 12632] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12632] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12633] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12633] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12632] <... futex resumed>)        = 0
[pid 12632] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12632] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12632] <... futex resumed>)        = 0
[pid 12632] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12632] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12633] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12633] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12632] <... futex resumed>)        = 0
[pid 12632] exit_group(0 <unfinished ...>
[pid 12633] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12632] <... exit_group resumed>)   = ?
[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=0x55558842d690) = 12634
./strace-static-x86_64: Process 12634 attached
[pid 12634] set_robust_list(0x55558842d6a0, 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
[pid 12634] close(3)                    = 0
[pid 12634] write(1, "executing program\n", 18executing program
) = 18
[pid 12634] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12634] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12634] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12635 attached
 => {parent_tid=[12635]}, 88) = 12635
[pid 12635] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12635] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12635] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12634] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12634] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12635] <... futex resumed>)        = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12635] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12634] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12634] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12635] <... futex resumed>)        = 0
[pid 12635] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12635] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12635] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12634] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12634] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12635] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12635] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12634] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12634] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12635] <... futex resumed>)        = 0
[pid 12635] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12635] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12635] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12634] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12636
./strace-static-x86_64: Process 12636 attached
[pid 12636] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12636] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12636] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12637]}, 88) = 12637
./strace-static-x86_64: Process 12637 attached
[pid 12637] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12637] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12637] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12636] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12636] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12637] <... futex resumed>)        = 0
[pid 12637] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12636] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12637] <... 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 12637] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12637] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12636] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12636] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12636] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12637] <... futex resumed>)        = 0
[pid 12637] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12637] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12637] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12636] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12636] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12637] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12637] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12636] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12636] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12637] <... futex resumed>)        = 0
[pid 12637] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12636] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12637] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12637] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12637] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12636] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[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=0x55558842d690) = 12638
./strace-static-x86_64: Process 12638 attached
[pid 12638] set_robust_list(0x55558842d6a0, 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
[pid 12638] write(1, "executing program\n", 18executing program
) = 18
[pid 12638] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12638] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12638] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12639 attached
 => {parent_tid=[12639]}, 88) = 12639
[pid 12639] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12639] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12639] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12638] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12638] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12639] <... futex resumed>)        = 0
[pid 12639] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12638] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12639] <... 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 12639] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12639] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12638] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12638] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12639] <... futex resumed>)        = 0
[pid 12639] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12638] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12639] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12639] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12639] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12638] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12638] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12639] <... futex resumed>)        = 0
[pid 12639] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12638] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12639] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12639] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12639] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12638] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12638] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12639] <... futex resumed>)        = 0
[pid 12639] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12638] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12639] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12639] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12639] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12638] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12638] exit_group(0)               = ?
[pid 12639] <... futex resumed>)        = ?
[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, child_tidptr=0x55558842d690) = 12640
./strace-static-x86_64: Process 12640 attached
[pid 12640] set_robust_list(0x55558842d6a0, 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
executing program
[pid 12640] write(1, "executing program\n", 18) = 18
[pid 12640] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12640] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12640] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12641 attached
 <unfinished ...>
[pid 12641] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12640] <... clone3 resumed> => {parent_tid=[12641]}, 88) = 12641
[pid 12640] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12641] <... set_robust_list resumed>) = 0
[pid 12640] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12641] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12640] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12641] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12640] <... futex resumed>)        = 0
[pid 12641] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12640] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12641] <... 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 12641] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12640] <... futex resumed>)        = 0
[pid 12640] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12640] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12641] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12641] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12640] <... futex resumed>)        = 0
[pid 12640] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12640] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12641] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12641] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12640] <... futex resumed>)        = 0
[pid 12640] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12640] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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=0x55558842d690) = 12642
./strace-static-x86_64: Process 12642 attached
[pid 12642] set_robust_list(0x55558842d6a0, 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(3)                    = 0
[pid 12642] write(1, "executing program\n", 18executing program
) = 18
[pid 12642] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12642] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12642] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12643 attached
 => {parent_tid=[12643]}, 88) = 12643
[pid 12643] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12643] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12643] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12642] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12642] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12643] <... futex resumed>)        = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12643] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12642] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12642] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12643] <... futex resumed>)        = 0
[pid 12643] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12643] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12643] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12642] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12642] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12643] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12643] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12642] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12642] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12643] <... futex resumed>)        = 0
[pid 12643] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12642] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12643] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12643] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12643] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12642] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12642] exit_group(0)               = ?
[pid 12643] <... futex resumed>)        = ?
[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} ---
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12644
./strace-static-x86_64: Process 12644 attached
[pid 12644] set_robust_list(0x55558842d6a0, 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
[pid 12644] write(1, "executing program\n", 18executing program
) = 18
[pid 12644] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12644] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12644] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12645]}, 88) = 12645
[pid 12644] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12644] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12644] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12645 attached
 <unfinished ...>
[pid 12645] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12644] <... futex resumed>)        = 0
[pid 12644] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12644] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12645] <... futex resumed>)        = 1
[pid 12645] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12645] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12644] <... futex resumed>)        = 0
[pid 12644] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12644] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12645] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12644] <... futex resumed>)        = 0
[pid 12644] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12644] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12645] <... futex resumed>)        = 1
[pid 12645] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12645] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12644] <... futex resumed>)        = 0
[pid 12644] exit_group(0)               = ?
[pid 12645] <... futex resumed>)        = ?
[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=0x55558842d690) = 12646
./strace-static-x86_64: Process 12646 attached
[pid 12646] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12646] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12646] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12647]}, 88) = 12647
[pid 12646] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12646] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12646] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12647 attached
 <unfinished ...>
[pid 12647] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12646] <... futex resumed>)        = 0
[pid 12646] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12646] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12647] <... futex resumed>)        = 1
[pid 12647] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12647] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12646] <... futex resumed>)        = 0
[pid 12646] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12646] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12647] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12646] <... futex resumed>)        = 0
[pid 12646] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12646] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12647] <... futex resumed>)        = 1
[pid 12647] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12647] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12646] <... futex resumed>)        = 0
[pid 12646] exit_group(0)               = ?
[pid 12647] <... futex resumed>)        = ?
[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=0x55558842d690) = 12648
./strace-static-x86_64: Process 12648 attached
[pid 12648] set_robust_list(0x55558842d6a0, 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", 4executing program
)         = 4
[pid 12648] close(3)                    = 0
[pid 12648] write(1, "executing program\n", 18) = 18
[pid 12648] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12648] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12648] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12649]}, 88) = 12649
[pid 12648] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12648] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12648] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12649 attached
 <unfinished ...>
[pid 12649] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12648] <... futex resumed>)        = 0
[pid 12648] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12648] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12648] <... futex resumed>)        = 0
[pid 12648] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12648] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12648] <... futex resumed>)        = 0
[pid 12648] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12648] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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=0x55558842d690) = 12650
./strace-static-x86_64: Process 12650 attached
[pid 12650] set_robust_list(0x55558842d6a0, 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
[pid 12650] write(1, "executing program\n", 18executing program
) = 18
[pid 12650] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12650] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12650] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12651 attached
 => {parent_tid=[12651]}, 88) = 12651
[pid 12651] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12651] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12651] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12650] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12650] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12651] <... futex resumed>)        = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12651] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12650] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12650] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12651] <... futex resumed>)        = 0
[pid 12651] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12651] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12651] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12650] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12650] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12651] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12651] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12650] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12650] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12651] <... futex resumed>)        = 0
[pid 12651] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12651] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12651] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12650] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12650] exit_group(0)               = ?
[pid 12651] <... futex resumed>)        = ?
[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=0x55558842d690) = 12652
./strace-static-x86_64: Process 12652 attached
[pid 12652] set_robust_list(0x55558842d6a0, 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", 4)         = 4
[pid 12652] close(3executing program
)                    = 0
[pid 12652] write(1, "executing program\n", 18) = 18
[pid 12652] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12652] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12652] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12653 attached
 => {parent_tid=[12653]}, 88) = 12653
[pid 12652] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12652] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12652] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12653] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12652] <... futex resumed>)        = 0
[pid 12652] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12652] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12652] <... futex resumed>)        = 0
[pid 12652] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12652] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12652] <... futex resumed>)        = 0
[pid 12652] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12652] futex(0x7fee38f303ec, 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(0x7fee38f303ec, 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=0x55558842d690) = 12655
./strace-static-x86_64: Process 12655 attached
[pid 12655] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12655] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12655] setpgid(0, 0)               = 0
executing program
[pid 12655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12655] write(3, "1000", 4)         = 4
[pid 12655] close(3)                    = 0
[pid 12655] write(1, "executing program\n", 18) = 18
[pid 12655] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12655] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12655] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12655] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12655] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12655] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12655] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12656 attached
 <unfinished ...>
[pid 12656] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12655] <... clone3 resumed> => {parent_tid=[12656]}, 88) = 12656
[pid 12656] <... set_robust_list resumed>) = 0
[pid 12656] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12656] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12655] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12655] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12656] <... futex resumed>)        = 0
[pid 12656] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12655] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12656] <... 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 12656] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12655] <... futex resumed>)        = 0
[pid 12656] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12655] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12655] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12656] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12656] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12655] <... futex resumed>)        = 0
[pid 12656] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12655] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12655] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12656] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12656] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12655] <... futex resumed>)        = 0
[pid 12655] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12655] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12656] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12656] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12655] <... futex resumed>)        = 0
[pid 12656] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12655] exit_group(0)               = ?
[pid 12656] <... futex resumed>)        = ?
[pid 12656] +++ exited with 0 +++
[pid 12655] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12655, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12657
./strace-static-x86_64: Process 12657 attached
[pid 12657] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12657] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12657] setpgid(0, 0)               = 0
[pid 12657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12657] write(3, "1000", 4)         = 4
[pid 12657] close(3)                    = 0
[pid 12657] write(1, "executing program\n", 18executing program
) = 18
[pid 12657] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12657] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12657] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12657] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12657] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12657] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12657] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12658 attached
 => {parent_tid=[12658]}, 88) = 12658
[pid 12658] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12658] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12658] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12657] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12657] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12658] <... futex resumed>)        = 0
[pid 12657] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12658] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12658] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12658] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12657] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12657] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12658] <... futex resumed>)        = 0
[pid 12658] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12658] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12658] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12657] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12657] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12658] <... futex resumed>)        = 0
[pid 12658] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12658] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12658] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12657] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12657] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12658] <... futex resumed>)        = 0
[pid 12658] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12658] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12658] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12657] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12657] exit_group(0)               = ?
[pid 12658] <... futex resumed>)        = ?
[pid 12658] +++ exited with 0 +++
[pid 12657] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12657, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12659
./strace-static-x86_64: Process 12659 attached
[pid 12659] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12659] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12659] setpgid(0, 0)               = 0
[pid 12659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12659] write(3, "1000", 4)         = 4
[pid 12659] close(3)                    = 0
[pid 12659] write(1, "executing program\n", 18executing program
) = 18
[pid 12659] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12659] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12659] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12659] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12659] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12659] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12659] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12660 attached
 => {parent_tid=[12660]}, 88) = 12660
[pid 12659] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12659] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12659] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12660] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12660] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12660] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12660] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12659] <... futex resumed>)        = 0
[pid 12659] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12659] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12660] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12660] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12659] <... futex resumed>)        = 0
[pid 12659] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12659] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12660] 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12659] <... futex resumed>)        = 0
[pid 12659] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12659] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12660] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12660] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12659] <... futex resumed>)        = 0
[pid 12659] exit_group(0)               = ?
[pid 12660] +++ exited with 0 +++
[pid 12659] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12659, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12661
./strace-static-x86_64: Process 12661 attached
[pid 12661] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12661] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12661] setpgid(0, 0)               = 0
[pid 12661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12661] write(3, "1000", 4)         = 4
[pid 12661] close(3)                    = 0
executing program
[pid 12661] write(1, "executing program\n", 18) = 18
[pid 12661] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12661] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12661] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12661] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12661] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12661] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12661] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12662 attached
 => {parent_tid=[12662]}, 88) = 12662
[pid 12662] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12662] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12662] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12661] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12661] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12662] <... futex resumed>)        = 0
[pid 12662] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12661] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12662] <... 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 12662] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12661] <... futex resumed>)        = 0
[pid 12661] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12661] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12662] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12662] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12661] <... futex resumed>)        = 0
[pid 12661] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12661] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12662] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12662] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12661] <... futex resumed>)        = 0
[pid 12661] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12661] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12662] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12662] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12662] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12661] <... futex resumed>)        = 0
[pid 12661] exit_group(0)               = ?
[pid 12662] <... futex resumed>)        = ?
[pid 12662] +++ exited with 0 +++
[pid 12661] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12661, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12663
./strace-static-x86_64: Process 12663 attached
[pid 12663] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12663] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12663] setpgid(0, 0)               = 0
[pid 12663] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12663] write(3, "1000", 4)         = 4
[pid 12663] close(3)                    = 0
[pid 12663] write(1, "executing program\n", 18executing program
) = 18
[pid 12663] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12663] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12663] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12663] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12663] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12663] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12663] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12664]}, 88) = 12664
./strace-static-x86_64: Process 12664 attached
[pid 12664] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12664] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12664] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12663] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12663] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12664] <... futex resumed>)        = 0
[pid 12664] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12664] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12663] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12664] <... futex resumed>)        = 0
[pid 12663] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12664] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12663] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12664] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12663] <... futex resumed>)        = 0
[pid 12664] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12663] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12664] <... futex resumed>)        = 0
[pid 12663] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12664] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12663] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12664] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12664] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12663] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12664] <... futex resumed>)        = 0
[pid 12663] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12663] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12664] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12663] <... futex resumed>)        = 0
[pid 12664] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12663] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12664] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12663] <... futex resumed>)        = 0
[pid 12663] exit_group(0)               = ?
[pid 12664] +++ exited with 0 +++
[pid 12663] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12663, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12665
./strace-static-x86_64: Process 12665 attached
[pid 12665] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12665] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12665] setpgid(0, 0)               = 0
[pid 12665] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12665] write(3, "1000", 4)         = 4
[pid 12665] close(3executing program
)                    = 0
[pid 12665] write(1, "executing program\n", 18) = 18
[pid 12665] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12665] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12665] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12665] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12665] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12665] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12665] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12666 attached
 <unfinished ...>
[pid 12666] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12665] <... clone3 resumed> => {parent_tid=[12666]}, 88) = 12666
[pid 12665] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12666] <... set_robust_list resumed>) = 0
[pid 12665] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12666] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12665] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12666] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12665] <... futex resumed>)        = 0
[pid 12666] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12665] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12666] <... 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 12666] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12665] <... futex resumed>)        = 0
[pid 12665] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12665] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12666] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12666] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12665] <... futex resumed>)        = 0
[pid 12665] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12665] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12666] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12666] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12665] <... futex resumed>)        = 0
[pid 12665] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12665] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12666] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12666] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12665] <... futex resumed>)        = 0
[pid 12665] exit_group(0)               = ?
[pid 12666] +++ exited with 0 +++
[pid 12665] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12665, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12667
./strace-static-x86_64: Process 12667 attached
[pid 12667] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12667] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12667] setpgid(0, 0)               = 0
[pid 12667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12667] write(3, "1000", 4)         = 4
[pid 12667] close(3)                    = 0
[pid 12667] write(1, "executing program\n", 18executing program
) = 18
[pid 12667] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12667] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12667] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12667] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12667] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12667] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12667] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12668 attached
 <unfinished ...>
[pid 12668] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12668] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12668] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12667] <... clone3 resumed> => {parent_tid=[12668]}, 88) = 12668
[pid 12667] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12667] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12668] <... futex resumed>)        = 0
[pid 12668] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12667] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12668] <... 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 12668] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12668] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12667] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12667] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12668] <... futex resumed>)        = 0
[pid 12668] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12667] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12668] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12668] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12667] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12667] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12668] <... futex resumed>)        = 0
[pid 12668] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12668] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12668] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12667] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12667] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12668] <... futex resumed>)        = 0
[pid 12668] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12668] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12668] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12667] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12667] exit_group(0)               = ?
[pid 12668] <... futex resumed>)        = ?
[pid 12668] +++ exited with 0 +++
[pid 12667] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12667, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12669
./strace-static-x86_64: Process 12669 attached
[pid 12669] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12669] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12669] setpgid(0, 0)               = 0
[pid 12669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12669] write(3, "1000", 4)         = 4
[pid 12669] close(3)                    = 0
[pid 12669] write(1, "executing program\n", 18executing program
) = 18
[pid 12669] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12669] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12669] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12669] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12669] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12669] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12669] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12670]}, 88) = 12670
[pid 12669] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12669] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12669] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12670 attached
 <unfinished ...>
[pid 12670] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12670] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12670] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12670] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12669] <... futex resumed>)        = 0
[pid 12669] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12669] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12670] <... futex resumed>)        = 1
[pid 12670] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12670] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12669] <... futex resumed>)        = 0
[pid 12669] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12669] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12670] <... futex resumed>)        = 1
[pid 12670] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12670] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12669] <... futex resumed>)        = 0
[pid 12669] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12669] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12670] <... futex resumed>)        = 1
[pid 12670] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12670] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12669] <... futex resumed>)        = 0
[pid 12669] exit_group(0)               = ?
[pid 12670] <... futex resumed>)        = ?
[pid 12670] +++ exited with 0 +++
[pid 12669] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12669, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12671
./strace-static-x86_64: Process 12671 attached
[pid 12671] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12671] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12671] setpgid(0, 0)               = 0
[pid 12671] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12671] write(3, "1000", 4)         = 4
[pid 12671] close(3)                    = 0
[pid 12671] write(1, "executing program\n", 18executing program
) = 18
[pid 12671] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12671] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12671] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12671] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12671] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12671] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12671] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12672 attached
 <unfinished ...>
[pid 12672] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12672] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12672] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12671] <... clone3 resumed> => {parent_tid=[12672]}, 88) = 12672
[pid 12671] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12671] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12672] <... futex resumed>)        = 0
[pid 12672] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12672] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12672] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12671] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12671] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12672] <... futex resumed>)        = 0
[pid 12672] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12672] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12672] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12671] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12671] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12672] <... futex resumed>)        = 0
[pid 12672] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12672] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12672] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12671] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12671] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12672] <... futex resumed>)        = 0
[pid 12672] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12672] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12672] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12671] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12671] exit_group(0)               = ?
[pid 12672] <... futex resumed>)        = ?
[pid 12672] +++ exited with 0 +++
[pid 12671] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12671, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12673
./strace-static-x86_64: Process 12673 attached
[pid 12673] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12673] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12673] setpgid(0, 0)               = 0
[pid 12673] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12673] write(3, "1000", 4)         = 4
[pid 12673] close(3)                    = 0
[pid 12673] write(1, "executing program\n", 18executing program
) = 18
[pid 12673] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12673] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12673] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12673] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12673] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12673] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12673] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12674 attached
 <unfinished ...>
[pid 12674] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12673] <... clone3 resumed> => {parent_tid=[12674]}, 88) = 12674
[pid 12674] <... set_robust_list resumed>) = 0
[pid 12673] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12674] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12673] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12674] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12673] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12674] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12673] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12674] <... 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 12674] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12673] <... futex resumed>)        = 0
[pid 12673] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12673] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12674] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12674] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12673] <... futex resumed>)        = 0
[pid 12673] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12674] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12673] <... futex resumed>)        = 0
[pid 12673] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12674] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12674] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12673] <... futex resumed>)        = 0
[pid 12673] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12673] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12674] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12674] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12673] <... futex resumed>)        = 0
[pid 12673] exit_group(0)               = ?
[pid 12674] +++ exited with 0 +++
[pid 12673] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12673, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12675
./strace-static-x86_64: Process 12675 attached
[pid 12675] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12675] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12675] setpgid(0, 0)               = 0
[pid 12675] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12675] write(3, "1000", 4)         = 4
[pid 12675] close(3)                    = 0
[pid 12675] write(1, "executing program\n", 18executing program
) = 18
[pid 12675] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12675] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12675] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12675] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12675] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12675] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12675] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12676 attached
 => {parent_tid=[12676]}, 88) = 12676
[pid 12676] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12676] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12676] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12675] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12675] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12676] <... futex resumed>)        = 0
[pid 12676] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12676] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12675] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12676] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12675] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12675] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12676] <... futex resumed>)        = 0
[pid 12676] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12676] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12676] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12675] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12675] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12676] <... futex resumed>)        = 0
[pid 12676] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12676] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12676] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12675] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12675] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12676] <... futex resumed>)        = 0
[pid 12676] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12676] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12676] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12675] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12675] exit_group(0)               = ?
[pid 12676] <... futex resumed>)        = ?
[pid 12676] +++ exited with 0 +++
[pid 12675] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12675, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12677
./strace-static-x86_64: Process 12677 attached
[pid 12677] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12677] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12677] setpgid(0, 0)               = 0
[pid 12677] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12677] write(3, "1000", 4)         = 4
[pid 12677] close(3executing program
)                    = 0
[pid 12677] write(1, "executing program\n", 18) = 18
[pid 12677] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12677] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12677] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12677] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12677] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12677] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12677] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12678 attached
 => {parent_tid=[12678]}, 88) = 12678
[pid 12678] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12677] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12678] <... set_robust_list resumed>) = 0
[pid 12677] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12678] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12677] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12678] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12677] <... futex resumed>)        = 0
[pid 12677] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12678] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12678] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12677] <... futex resumed>)        = 0
[pid 12677] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12677] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12678] <... futex resumed>)        = 1
[pid 12678] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12678] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12677] <... futex resumed>)        = 0
[pid 12677] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12677] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12678] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12678] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12677] <... futex resumed>)        = 0
[pid 12677] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12677] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12678] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12678] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12677] <... futex resumed>)        = 0
[pid 12678] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12677] exit_group(0)               = ?
[pid 12678] <... futex resumed>)        = ?
[pid 12678] +++ exited with 0 +++
[pid 12677] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12677, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12679
./strace-static-x86_64: Process 12679 attached
[pid 12679] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12679] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12679] setpgid(0, 0)               = 0
[pid 12679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12679] write(3, "1000", 4)         = 4
[pid 12679] close(3)                    = 0
executing program
[pid 12679] write(1, "executing program\n", 18) = 18
[pid 12679] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12679] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12679] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12679] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12679] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12679] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12679] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12680]}, 88) = 12680
[pid 12679] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12679] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12679] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12680 attached
 <unfinished ...>
[pid 12680] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12680] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12680] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12680] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12679] <... futex resumed>)        = 0
[pid 12679] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12679] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12680] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12680] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12679] <... futex resumed>)        = 0
[pid 12679] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12679] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12680] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12680] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12679] <... futex resumed>)        = 0
[pid 12679] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12679] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12680] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12680] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12679] <... futex resumed>)        = 0
[pid 12679] exit_group(0)               = ?
[pid 12680] +++ exited with 0 +++
[pid 12679] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12679, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12681
./strace-static-x86_64: Process 12681 attached
[pid 12681] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12681] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12681] setpgid(0, 0)               = 0
[pid 12681] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12681] write(3, "1000", 4)         = 4
[pid 12681] close(3)                    = 0
[pid 12681] write(1, "executing program\n", 18executing program
) = 18
[pid 12681] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12681] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12681] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12681] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12681] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12681] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12681] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12682 attached
 => {parent_tid=[12682]}, 88) = 12682
[pid 12682] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12682] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12682] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12681] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12681] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12682] <... futex resumed>)        = 0
[pid 12682] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12682] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12682] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12681] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12681] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12682] <... futex resumed>)        = 0
[pid 12682] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12681] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12682] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12681] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12682] <... futex resumed>)        = 0
[pid 12681] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12682] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12681] <... futex resumed>)        = 0
[pid 12682] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12681] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12682] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12681] <... futex resumed>)        = 0
[pid 12681] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12681] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12682] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12682] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12681] <... futex resumed>)        = 0
[pid 12681] exit_group(0)               = ?
[pid 12682] +++ exited with 0 +++
[pid 12681] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12681, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12683
./strace-static-x86_64: Process 12683 attached
[pid 12683] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12683] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12683] setpgid(0, 0)               = 0
[pid 12683] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12683] write(3, "1000", 4)         = 4
[pid 12683] close(3)                    = 0
[pid 12683] write(1, "executing program\n", 18executing program
) = 18
[pid 12683] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12683] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12683] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12683] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12683] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12683] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12683] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12684 attached
 => {parent_tid=[12684]}, 88) = 12684
[pid 12684] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12684] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12684] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12683] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12683] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12684] <... futex resumed>)        = 0
[pid 12684] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12684] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12684] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12683] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12683] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12684] <... futex resumed>)        = 0
[pid 12684] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12684] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12684] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12683] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12683] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12684] <... futex resumed>)        = 0
[pid 12684] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12684] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12684] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12683] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12683] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12684] <... futex resumed>)        = 0
[pid 12684] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12684] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12684] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12683] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12683] exit_group(0)               = ?
[pid 12684] <... futex resumed>)        = ?
[pid 12684] +++ exited with 0 +++
[pid 12683] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12683, 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=0x55558842d690) = 12685
./strace-static-x86_64: Process 12685 attached
[pid 12685] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12685] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12685] setpgid(0, 0)               = 0
[pid 12685] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12685] write(3, "1000", 4)         = 4
[pid 12685] close(3)                    = 0
[pid 12685] write(1, "executing program\n", 18executing program
) = 18
[pid 12685] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12685] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12685] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12685] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12685] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12685] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12685] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12686 attached
 => {parent_tid=[12686]}, 88) = 12686
[pid 12686] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12686] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12686] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12685] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12685] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12686] <... futex resumed>)        = 0
[pid 12686] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12686] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12686] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12685] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12685] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12686] <... futex resumed>)        = 0
[pid 12686] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12686] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12686] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12685] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12685] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12686] <... futex resumed>)        = 0
[pid 12686] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12686] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12686] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12685] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12685] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12686] <... futex resumed>)        = 0
[pid 12686] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12685] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12686] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12686] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12685] <... futex resumed>)        = 0
[pid 12685] exit_group(0)               = ?
[pid 12686] +++ exited with 0 +++
[pid 12685] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12685, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12687
./strace-static-x86_64: Process 12687 attached
[pid 12687] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12687] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12687] setpgid(0, 0)               = 0
[pid 12687] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12687] write(3, "1000", 4)         = 4
[pid 12687] close(3executing program
)                    = 0
[pid 12687] write(1, "executing program\n", 18) = 18
[pid 12687] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12687] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12687] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12687] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12687] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12687] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12687] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12688 attached
 <unfinished ...>
[pid 12688] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12687] <... clone3 resumed> => {parent_tid=[12688]}, 88) = 12688
[pid 12687] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12688] <... set_robust_list resumed>) = 0
[pid 12687] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12688] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12687] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12688] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12687] <... futex resumed>)        = 0
[pid 12688] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12687] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12688] <... 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 12688] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12687] <... futex resumed>)        = 0
[pid 12687] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12687] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12688] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12688] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12687] <... futex resumed>)        = 0
[pid 12687] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12687] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12688] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12688] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12687] <... futex resumed>)        = 0
[pid 12687] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12687] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12688] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12688] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12687] <... futex resumed>)        = 0
[pid 12687] exit_group(0)               = ?
[pid 12688] +++ exited with 0 +++
[pid 12687] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12687, si_uid=0, si_status=0, 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 12689 attached
 <unfinished ...>
[pid 12689] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12689] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12689] setpgid(0, 0)               = 0
[pid   555] <... clone resumed>, child_tidptr=0x55558842d690) = 12689
[pid 12689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12689] write(3, "1000", 4)         = 4
[pid 12689] close(3)                    = 0
[pid 12689] write(1, "executing program\n", 18executing program
) = 18
[pid 12689] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12689] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12689] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12689] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12689] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12689] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12689] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12690]}, 88) = 12690
./strace-static-x86_64: Process 12690 attached
[pid 12689] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12689] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12689] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12690] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12690] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12690] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12690] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12689] <... futex resumed>)        = 0
[pid 12689] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12689] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12690] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12690] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12689] <... futex resumed>)        = 0
[pid 12689] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12689] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12690] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12690] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12689] <... futex resumed>)        = 0
[pid 12689] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12689] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12690] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12690] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12689] <... futex resumed>)        = 0
[pid 12689] exit_group(0)               = ?
[pid 12690] +++ exited with 0 +++
[pid 12689] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12689, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12691
./strace-static-x86_64: Process 12691 attached
[pid 12691] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12691] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12691] setpgid(0, 0)               = 0
[pid 12691] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12691] write(3, "1000", 4)         = 4
[pid 12691] close(3)                    = 0
[pid 12691] write(1, "executing program\n", 18executing program
) = 18
[pid 12691] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12691] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12691] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12691] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12691] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12691] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12691] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12692 attached
 => {parent_tid=[12692]}, 88) = 12692
[pid 12691] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12691] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12691] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12692] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12692] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12692] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12692] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12691] <... futex resumed>)        = 0
[pid 12691] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12691] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12692] <... futex resumed>)        = 1
[pid 12692] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12692] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12691] <... futex resumed>)        = 0
[pid 12691] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12691] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12692] <... futex resumed>)        = 1
[pid 12692] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12692] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12691] <... futex resumed>)        = 0
[pid 12691] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12692] <... futex resumed>)        = 1
[pid 12691] <... futex resumed>)        = 0
[pid 12691] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12692] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12692] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12691] <... futex resumed>)        = 0
[pid 12691] exit_group(0)               = ?
[pid 12692] +++ exited with 0 +++
[pid 12691] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12691, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12693
./strace-static-x86_64: Process 12693 attached
[pid 12693] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12693] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12693] setpgid(0, 0)               = 0
[pid 12693] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12693] write(3, "1000", 4)         = 4
executing program
[pid 12693] close(3)                    = 0
[pid 12693] write(1, "executing program\n", 18) = 18
[pid 12693] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12693] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12693] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12693] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12693] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12693] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12693] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12694 attached
 <unfinished ...>
[pid 12694] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12694] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12694] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12693] <... clone3 resumed> => {parent_tid=[12694]}, 88) = 12694
[pid 12693] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12693] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12694] <... futex resumed>)        = 0
[pid 12694] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12694] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12694] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12693] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12693] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12694] <... futex resumed>)        = 0
[pid 12694] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12694] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12694] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12693] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12693] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12694] <... futex resumed>)        = 0
[pid 12694] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12694] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12694] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12693] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12693] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12694] <... futex resumed>)        = 0
[pid 12694] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12694] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12694] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12693] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12693] exit_group(0)               = ?
[pid 12694] <... futex resumed>)        = ?
[pid 12694] +++ exited with 0 +++
[pid 12693] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12693, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12695
./strace-static-x86_64: Process 12695 attached
[pid 12695] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12695] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12695] setpgid(0, 0)               = 0
[pid 12695] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12695] write(3, "1000", 4)         = 4
[pid 12695] close(3)                    = 0
executing program
[pid 12695] write(1, "executing program\n", 18) = 18
[pid 12695] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12695] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12695] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12695] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12695] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12695] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12695] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12696]}, 88) = 12696
[pid 12695] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12695] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12695] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12696 attached
 <unfinished ...>
[pid 12696] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12696] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12696] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12696] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12695] <... futex resumed>)        = 0
[pid 12695] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12695] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12696] <... futex resumed>)        = 1
[pid 12696] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12696] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12695] <... futex resumed>)        = 0
[pid 12695] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12695] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12696] <... futex resumed>)        = 1
[pid 12696] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12696] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12695] <... futex resumed>)        = 0
[pid 12695] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12695] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12696] <... futex resumed>)        = 1
[pid 12696] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12696] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12695] <... futex resumed>)        = 0
[pid 12695] exit_group(0)               = ?
[pid 12696] <... futex resumed>)        = ?
[pid 12696] +++ exited with 0 +++
[pid 12695] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12695, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12697
./strace-static-x86_64: Process 12697 attached
[pid 12697] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12697] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12697] setpgid(0, 0)               = 0
[pid 12697] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12697] write(3, "1000", 4)         = 4
[pid 12697] close(3executing program
)                    = 0
[pid 12697] write(1, "executing program\n", 18) = 18
[pid 12697] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12697] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12697] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12697] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12697] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12697] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12697] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12698 attached
 => {parent_tid=[12698]}, 88) = 12698
[pid 12697] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12697] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12697] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12698] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12698] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12698] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12698] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12697] <... futex resumed>)        = 0
[pid 12697] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12697] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12698] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12698] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12697] <... futex resumed>)        = 0
[pid 12698] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12697] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12697] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12698] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12698] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12698] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12697] <... futex resumed>)        = 0
[pid 12697] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12697] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12698] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12698] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12697] <... futex resumed>)        = 0
[pid 12698] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12697] exit_group(0)               = ?
[pid 12698] <... futex resumed>)        = ?
[pid 12698] +++ exited with 0 +++
[pid 12697] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12697, si_uid=0, si_status=0, 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 12699 attached
, child_tidptr=0x55558842d690) = 12699
[pid 12699] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12699] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12699] setpgid(0, 0)               = 0
[pid 12699] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12699] write(3, "1000", 4)         = 4
[pid 12699] close(3)                    = 0
[pid 12699] write(1, "executing program\n", 18executing program
) = 18
[pid 12699] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12699] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12699] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12699] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12699] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12699] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12699] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12700 attached
 => {parent_tid=[12700]}, 88) = 12700
[pid 12700] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12700] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12700] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12699] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12699] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12700] <... futex resumed>)        = 0
[pid 12700] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12700] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12700] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12699] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12699] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12700] <... futex resumed>)        = 0
[pid 12700] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12700] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12700] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12699] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12699] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12700] <... futex resumed>)        = 0
[pid 12700] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12700] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12700] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12699] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12699] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12700] <... futex resumed>)        = 0
[pid 12699] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12700] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12700] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12700] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12699] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12699] exit_group(0)               = ?
[pid 12700] <... futex resumed>)        = ?
[pid 12700] +++ exited with 0 +++
[pid 12699] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12699, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12701
./strace-static-x86_64: Process 12701 attached
[pid 12701] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12701] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12701] setpgid(0, 0)               = 0
[pid 12701] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12701] write(3, "1000", 4)         = 4
[pid 12701] close(3)                    = 0
executing program
[pid 12701] write(1, "executing program\n", 18) = 18
[pid 12701] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12701] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12701] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12701] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12701] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12701] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12701] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12702 attached
 => {parent_tid=[12702]}, 88) = 12702
[pid 12701] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12701] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12701] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12702] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12702] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12702] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12702] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12702] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12701] <... futex resumed>)        = 0
[pid 12701] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12701] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12702] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12702] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12702] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12701] <... futex resumed>)        = 0
[pid 12702] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12701] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12702] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12701] <... futex resumed>)        = 0
[pid 12702] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12701] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12702] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12702] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12701] <... futex resumed>)        = 0
[pid 12702] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12701] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12702] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12701] <... futex resumed>)        = 0
[pid 12702] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12701] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12702] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12701] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12702] <... futex resumed>)        = 0
[pid 12701] exit_group(0 <unfinished ...>
[pid 12702] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12701] <... exit_group resumed>)   = ?
[pid 12702] <... futex resumed>)        = -1 (errno 18446744073709551414)
[pid 12702] +++ exited with 0 +++
[pid 12701] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12701, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12703
./strace-static-x86_64: Process 12703 attached
[pid 12703] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12703] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12703] setpgid(0, 0)               = 0
[pid 12703] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12703] write(3, "1000", 4)         = 4
[pid 12703] close(3)                    = 0
executing program
[pid 12703] write(1, "executing program\n", 18) = 18
[pid 12703] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12703] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12703] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12703] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12703] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12703] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12703] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12704 attached
 => {parent_tid=[12704]}, 88) = 12704
[pid 12704] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12703] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12703] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12703] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12704] <... set_robust_list resumed>) = 0
[pid 12704] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12704] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12704] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12703] <... futex resumed>)        = 0
[pid 12703] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12703] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12704] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12704] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12703] <... futex resumed>)        = 0
[pid 12704] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12703] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12704] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12703] <... futex resumed>)        = 0
[pid 12704] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12703] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12704] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12704] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12703] <... futex resumed>)        = 0
[pid 12703] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12703] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12704] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12704] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12703] <... futex resumed>)        = 0
[pid 12703] exit_group(0)               = ?
[pid 12704] +++ exited with 0 +++
[pid 12703] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12703, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12705
./strace-static-x86_64: Process 12705 attached
[pid 12705] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12705] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12705] setpgid(0, 0)               = 0
[pid 12705] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12705] write(3, "1000", 4)         = 4
[pid 12705] close(3)                    = 0
[pid 12705] write(1, "executing program\n", 18executing program
) = 18
[pid 12705] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12705] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12705] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12705] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12705] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12705] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12705] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12706 attached
 => {parent_tid=[12706]}, 88) = 12706
[pid 12706] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12706] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12706] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12705] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12705] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12706] <... futex resumed>)        = 0
[pid 12706] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12705] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12706] <... 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 12706] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12705] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12706] <... futex resumed>)        = 0
[pid 12706] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12705] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12706] <... futex resumed>)        = 0
[pid 12706] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12706] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12706] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12705] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12705] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12706] <... futex resumed>)        = 0
[pid 12705] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12706] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12706] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12706] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12705] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12705] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12706] <... futex resumed>)        = 0
[pid 12705] <... futex resumed>)        = 1
[pid 12706] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12705] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12706] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12706] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12705] <... futex resumed>)        = 0
[pid 12706] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12705] exit_group(0)               = ?
[pid 12706] <... futex resumed>)        = ?
[pid 12706] +++ exited with 0 +++
[pid 12705] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12705, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12707
./strace-static-x86_64: Process 12707 attached
[pid 12707] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12707] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12707] setpgid(0, 0)               = 0
[pid 12707] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12707] write(3, "1000", 4)         = 4
[pid 12707] close(3)                    = 0
[pid 12707] write(1, "executing program\n", 18executing program
) = 18
[pid 12707] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12707] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12707] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12707] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12707] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12707] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12707] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12708 attached
 => {parent_tid=[12708]}, 88) = 12708
[pid 12708] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12707] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12708] <... set_robust_list resumed>) = 0
[pid 12708] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12708] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12707] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12707] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12708] <... futex resumed>)        = 0
[pid 12708] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12708] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12708] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12707] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12707] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12708] <... futex resumed>)        = 0
[pid 12708] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12708] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12708] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12707] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12707] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12708] <... futex resumed>)        = 0
[pid 12708] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12708] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12708] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12707] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12707] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12708] <... futex resumed>)        = 0
[pid 12708] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12708] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12708] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12707] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12707] exit_group(0)               = ?
[pid 12708] <... futex resumed>)        = ?
[pid 12708] +++ exited with 0 +++
[pid 12707] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12707, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12709
./strace-static-x86_64: Process 12709 attached
[pid 12709] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12709] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12709] setpgid(0, 0)               = 0
[pid 12709] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12709] write(3, "1000", 4)         = 4
[pid 12709] close(3)                    = 0
[pid 12709] write(1, "executing program\n", 18executing program
) = 18
[pid 12709] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12709] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12709] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12709] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12709] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12709] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12709] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12710 attached
 => {parent_tid=[12710]}, 88) = 12710
[pid 12710] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12710] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12710] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12709] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12709] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12710] <... futex resumed>)        = 0
[pid 12710] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12710] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12710] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12709] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12709] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12710] <... futex resumed>)        = 0
[pid 12710] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12710] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12710] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12709] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12709] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12710] <... futex resumed>)        = 0
[pid 12710] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12710] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12710] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12709] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12709] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12710] <... futex resumed>)        = 0
[pid 12710] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12709] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12710] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12710] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12710] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12709] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12709] exit_group(0)               = ?
[pid 12710] <... futex resumed>)        = ?
[pid 12710] +++ exited with 0 +++
[pid 12709] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12709, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12711
./strace-static-x86_64: Process 12711 attached
[pid 12711] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12711] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12711] setpgid(0, 0)               = 0
[pid 12711] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12711] write(3, "1000", 4)         = 4
[pid 12711] close(3)                    = 0
[pid 12711] write(1, "executing program\n", 18executing program
) = 18
[pid 12711] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12711] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12711] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12711] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12711] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12711] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12711] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12712 attached
 <unfinished ...>
[pid 12712] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12712] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12712] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12711] <... clone3 resumed> => {parent_tid=[12712]}, 88) = 12712
[pid 12711] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12711] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12712] <... futex resumed>)        = 0
[pid 12712] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12712] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12712] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12711] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12711] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12712] <... futex resumed>)        = 0
[pid 12712] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12712] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12712] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12711] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12711] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12712] <... futex resumed>)        = 0
[pid 12712] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12712] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12712] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12711] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12711] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12712] <... futex resumed>)        = 0
[pid 12712] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12712] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12712] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12711] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12711] exit_group(0)               = ?
[pid 12712] <... futex resumed>)        = ?
[pid 12712] +++ exited with 0 +++
[pid 12711] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12711, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12713
./strace-static-x86_64: Process 12713 attached
[pid 12713] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12713] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12713] setpgid(0, 0)               = 0
[pid 12713] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12713] write(3, "1000", 4)         = 4
[pid 12713] close(3)                    = 0
[pid 12713] write(1, "executing program\n", 18executing program
) = 18
[pid 12713] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12713] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12713] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12713] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12713] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12713] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12713] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12714 attached
 => {parent_tid=[12714]}, 88) = 12714
[pid 12714] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12713] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12714] <... set_robust_list resumed>) = 0
[pid 12713] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12714] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12713] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12714] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12713] <... futex resumed>)        = 0
[pid 12714] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12713] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12714] <... 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 12714] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12713] <... futex resumed>)        = 0
[pid 12713] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12713] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12714] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12714] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12713] <... futex resumed>)        = 0
[pid 12713] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12713] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12714] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12714] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12713] <... futex resumed>)        = 0
[pid 12713] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12713] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12714] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12714] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12713] <... futex resumed>)        = 0
[pid 12713] exit_group(0)               = ?
[pid 12714] +++ exited with 0 +++
[pid 12713] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12713, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12715
./strace-static-x86_64: Process 12715 attached
[pid 12715] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12715] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12715] setpgid(0, 0)               = 0
[pid 12715] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12715] write(3, "1000", 4)         = 4
[pid 12715] close(3)                    = 0
executing program
[pid 12715] write(1, "executing program\n", 18) = 18
[pid 12715] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12715] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12715] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12715] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12715] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12715] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12715] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12716 attached
 => {parent_tid=[12716]}, 88) = 12716
[pid 12716] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12715] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12716] <... set_robust_list resumed>) = 0
[pid 12715] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12716] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12715] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12716] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12715] <... futex resumed>)        = 0
[pid 12716] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12715] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12716] <... 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 12716] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12715] <... futex resumed>)        = 0
[pid 12715] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12715] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12716] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12716] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12715] <... futex resumed>)        = 0
[pid 12715] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12715] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12716] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12716] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12715] <... futex resumed>)        = 0
[pid 12715] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12715] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12716] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12716] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12715] <... futex resumed>)        = 0
[pid 12715] exit_group(0)               = ?
[pid 12716] +++ exited with 0 +++
[pid 12715] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12715, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12717
./strace-static-x86_64: Process 12717 attached
[pid 12717] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12717] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12717] setpgid(0, 0)               = 0
[pid 12717] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12717] write(3, "1000", 4)         = 4
[pid 12717] close(3)                    = 0
executing program
[pid 12717] write(1, "executing program\n", 18) = 18
[pid 12717] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12717] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12717] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12717] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12717] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12717] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12717] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12718]}, 88) = 12718
[pid 12717] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12717] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12717] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12718 attached
 <unfinished ...>
[pid 12718] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12718] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12718] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12718] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12717] <... futex resumed>)        = 0
[pid 12717] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12717] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12718] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12718] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12717] <... futex resumed>)        = 0
[pid 12717] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12717] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12718] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12718] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12717] <... futex resumed>)        = 0
[pid 12717] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12717] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12718] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12718] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12717] <... futex resumed>)        = 0
[pid 12717] exit_group(0)               = ?
[pid 12718] +++ exited with 0 +++
[pid 12717] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12717, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12719
./strace-static-x86_64: Process 12719 attached
[pid 12719] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12719] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12719] setpgid(0, 0)               = 0
[pid 12719] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12719] write(3, "1000", 4)         = 4
[pid 12719] close(3)                    = 0
executing program
[pid 12719] write(1, "executing program\n", 18) = 18
[pid 12719] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12719] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12719] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12719] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12719] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12719] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12719] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12720 attached
 => {parent_tid=[12720]}, 88) = 12720
[pid 12720] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12719] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12720] <... set_robust_list resumed>) = 0
[pid 12719] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12720] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12719] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12720] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12719] <... futex resumed>)        = 0
[pid 12720] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12719] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12720] <... 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 12720] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12719] <... futex resumed>)        = 0
[pid 12720] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12719] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12720] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12719] <... futex resumed>)        = 0
[pid 12719] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12720] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12719] <... futex resumed>)        = 0
[pid 12720] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12719] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12720] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12719] <... futex resumed>)        = 0
[pid 12720] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12719] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12720] <... futex resumed>)        = 0
[pid 12719] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12720] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12719] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12720] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12719] <... futex resumed>)        = 0
[pid 12720] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12719] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12719] exit_group(0)               = ?
[pid 12720] <... futex resumed>)        = ?
[pid 12720] +++ exited with 0 +++
[pid 12719] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12719, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12721
./strace-static-x86_64: Process 12721 attached
[pid 12721] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12721] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12721] setpgid(0, 0)               = 0
[pid 12721] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12721] write(3, "1000", 4)         = 4
executing program
[pid 12721] close(3)                    = 0
[pid 12721] write(1, "executing program\n", 18) = 18
[pid 12721] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12721] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12721] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12721] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12721] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12721] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12721] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12722]}, 88) = 12722
[pid 12721] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12721] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12721] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12722 attached
 <unfinished ...>
[pid 12722] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12722] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12722] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12722] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12721] <... futex resumed>)        = 0
[pid 12721] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12721] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12722] <... futex resumed>)        = 1
[pid 12722] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12722] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12721] <... futex resumed>)        = 0
[pid 12721] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12721] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12722] <... futex resumed>)        = 1
[pid 12722] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12722] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12721] <... futex resumed>)        = 0
[pid 12721] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12721] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12722] <... futex resumed>)        = 1
[pid 12722] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12722] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12721] <... futex resumed>)        = 0
[pid 12721] exit_group(0)               = ?
[pid 12722] <... futex resumed>)        = ?
[pid 12722] +++ exited with 0 +++
[pid 12721] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12721, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12723
./strace-static-x86_64: Process 12723 attached
[pid 12723] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12723] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12723] setpgid(0, 0)               = 0
[pid 12723] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12723] write(3, "1000", 4)         = 4
[pid 12723] close(3executing program
)                    = 0
[pid 12723] write(1, "executing program\n", 18) = 18
[pid 12723] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12723] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12723] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12723] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12723] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12723] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12723] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12724]}, 88) = 12724
./strace-static-x86_64: Process 12724 attached
[pid 12724] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12724] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12724] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12723] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12723] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12724] <... futex resumed>)        = 0
[pid 12724] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12723] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12724] <... 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 12724] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12723] <... futex resumed>)        = 0
[pid 12723] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12723] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12724] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12724] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12723] <... futex resumed>)        = 0
[pid 12723] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12723] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12724] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12724] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12723] <... futex resumed>)        = 0
[pid 12723] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12723] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12724] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12724] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12723] <... futex resumed>)        = 0
[pid 12723] exit_group(0)               = ?
[pid 12724] +++ exited with 0 +++
[pid 12723] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12723, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12725
./strace-static-x86_64: Process 12725 attached
[pid 12725] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12725] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12725] setpgid(0, 0)               = 0
[pid 12725] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12725] write(3, "1000", 4)         = 4
[pid 12725] close(3executing program
)                    = 0
[pid 12725] write(1, "executing program\n", 18) = 18
[pid 12725] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12725] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12725] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12725] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12725] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12725] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12725] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12726 attached
 => {parent_tid=[12726]}, 88) = 12726
[pid 12725] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12725] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12725] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12726] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12726] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12726] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12726] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12725] <... futex resumed>)        = 0
[pid 12725] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12725] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12726] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12726] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12725] <... futex resumed>)        = 0
[pid 12725] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12725] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12726] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12726] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12725] <... futex resumed>)        = 0
[pid 12725] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12725] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12726] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12726] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12725] <... futex resumed>)        = 0
[pid 12726] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12725] exit_group(0)               = ?
[pid 12726] <... futex resumed>)        = ?
[pid 12726] +++ exited with 0 +++
[pid 12725] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12725, si_uid=0, si_status=0, 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 12727 attached
, child_tidptr=0x55558842d690) = 12727
[pid 12727] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12727] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12727] setpgid(0, 0)               = 0
[pid 12727] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12727] write(3, "1000", 4)         = 4
[pid 12727] close(3)                    = 0
[pid 12727] write(1, "executing program\n", 18executing program
) = 18
[pid 12727] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12727] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12727] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12727] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12727] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12727] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12727] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12728 attached
 <unfinished ...>
[pid 12728] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12728] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12728] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12727] <... clone3 resumed> => {parent_tid=[12728]}, 88) = 12728
[pid 12727] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12727] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12728] <... futex resumed>)        = 0
[pid 12728] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12727] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12728] <... 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 12728] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12728] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12727] <... futex resumed>)        = 0
[pid 12727] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12728] <... futex resumed>)        = 0
[pid 12727] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12728] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12728] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12728] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12727] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12727] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12728] <... futex resumed>)        = 0
[pid 12727] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12728] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12728] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12728] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12727] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12727] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12728] <... futex resumed>)        = 0
[pid 12728] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12727] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12728] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12728] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12727] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12727] exit_group(0)               = ?
[pid 12728] <... futex resumed>)        = ?
[pid 12728] +++ exited with 0 +++
[pid 12727] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12727, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12729
./strace-static-x86_64: Process 12729 attached
[pid 12729] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12729] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12729] setpgid(0, 0)               = 0
[pid 12729] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12729] write(3, "1000", 4)         = 4
[pid 12729] close(3)                    = 0
[pid 12729] write(1, "executing program\n", 18executing program
) = 18
[pid 12729] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12729] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12729] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12729] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12729] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12729] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12729] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12730 attached
 => {parent_tid=[12730]}, 88) = 12730
[pid 12730] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12730] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12730] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12729] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12729] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12730] <... futex resumed>)        = 0
[pid 12730] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12729] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12730] <... 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 12730] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12730] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12729] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12729] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12730] <... futex resumed>)        = 0
[pid 12730] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12730] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12730] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12729] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12729] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12730] <... futex resumed>)        = 0
[pid 12730] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12730] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12730] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12729] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12729] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12730] <... futex resumed>)        = 0
[pid 12730] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12730] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12730] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12729] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12729] exit_group(0)               = ?
[pid 12730] <... futex resumed>)        = ?
[pid 12730] +++ exited with 0 +++
[pid 12729] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12729, si_uid=0, si_status=0, 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 12731 attached
, child_tidptr=0x55558842d690) = 12731
[pid 12731] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12731] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12731] setpgid(0, 0)               = 0
[pid 12731] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12731] write(3, "1000", 4)         = 4
executing program
[pid 12731] close(3)                    = 0
[pid 12731] write(1, "executing program\n", 18) = 18
[pid 12731] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12731] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12731] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12731] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12731] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12731] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12731] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12732 attached
 => {parent_tid=[12732]}, 88) = 12732
[pid 12731] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12731] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12731] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12732] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12732] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12732] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12732] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12731] <... futex resumed>)        = 0
[pid 12731] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12731] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12732] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12732] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12731] <... futex resumed>)        = 0
[pid 12731] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12731] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12732] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12732] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12731] <... futex resumed>)        = 0
[pid 12731] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12731] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12732] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12732] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12731] <... futex resumed>)        = 0
[pid 12731] exit_group(0)               = ?
[pid 12732] +++ exited with 0 +++
[pid 12731] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12731, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12733
./strace-static-x86_64: Process 12733 attached
[pid 12733] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12733] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12733] setpgid(0, 0)               = 0
[pid 12733] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12733] write(3, "1000", 4)         = 4
[pid 12733] close(3)                    = 0
[pid 12733] write(1, "executing program\n", 18executing program
) = 18
[pid 12733] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12733] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12733] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12733] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12733] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12733] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12733] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12734 attached
 => {parent_tid=[12734]}, 88) = 12734
[pid 12733] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12733] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12733] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12734] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12734] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12734] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12734] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12733] <... futex resumed>)        = 0
[pid 12734] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12733] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12734] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12734] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12733] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12734] <... futex resumed>)        = 0
[pid 12733] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12734] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12733] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12734] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12733] <... futex resumed>)        = 0
[pid 12734] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12733] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12734] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12734] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12733] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12734] <... futex resumed>)        = 0
[pid 12733] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12734] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12733] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12734] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12733] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12734] <... futex resumed>)        = 0
[pid 12733] exit_group(0 <unfinished ...>
[pid 12734] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12733] <... exit_group resumed>)   = ?
[pid 12734] <... futex resumed>)        = ?
[pid 12734] +++ exited with 0 +++
[pid 12733] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12733, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12735
./strace-static-x86_64: Process 12735 attached
[pid 12735] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12735] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12735] setpgid(0, 0)               = 0
[pid 12735] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12735] write(3, "1000", 4)         = 4
[pid 12735] close(3)                    = 0
[pid 12735] write(1, "executing program\n", 18executing program
) = 18
[pid 12735] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12735] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12735] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12735] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12735] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12735] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12735] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12736 attached
 <unfinished ...>
[pid 12736] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12736] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12736] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12735] <... clone3 resumed> => {parent_tid=[12736]}, 88) = 12736
[pid 12735] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12735] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12736] <... futex resumed>)        = 0
[pid 12736] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12736] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12736] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12735] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12735] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12736] <... futex resumed>)        = 0
[pid 12736] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12736] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12736] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12735] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12735] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12736] <... futex resumed>)        = 0
[pid 12736] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12736] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12736] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12735] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12735] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12736] <... futex resumed>)        = 0
[pid 12736] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12736] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12736] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12735] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12735] exit_group(0)               = ?
[pid 12736] <... futex resumed>)        = ?
[pid 12736] +++ exited with 0 +++
[pid 12735] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12735, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12737
./strace-static-x86_64: Process 12737 attached
[pid 12737] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12737] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12737] setpgid(0, 0)               = 0
[pid 12737] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12737] write(3, "1000", 4)         = 4
[pid 12737] close(3)                    = 0
[pid 12737] write(1, "executing program\n", 18executing program
) = 18
[pid 12737] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12737] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12737] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12737] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12737] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12737] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12737] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12738 attached
 => {parent_tid=[12738]}, 88) = 12738
[pid 12738] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12738] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12738] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12737] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12737] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12738] <... futex resumed>)        = 0
[pid 12738] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12737] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12738] <... 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 12738] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12738] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12737] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12737] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12738] <... futex resumed>)        = 0
[pid 12738] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12738] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12738] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12737] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12737] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12738] <... futex resumed>)        = 0
[pid 12738] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12738] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12738] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12737] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12737] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12738] <... futex resumed>)        = 0
[pid 12738] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12738] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12738] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12737] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12737] exit_group(0)               = ?
[pid 12738] <... futex resumed>)        = ?
[pid 12738] +++ exited with 0 +++
[pid 12737] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12737, si_uid=0, si_status=0, 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 12739 attached
, child_tidptr=0x55558842d690) = 12739
[pid 12739] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12739] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12739] setpgid(0, 0)               = 0
[pid 12739] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12739] write(3, "1000", 4)         = 4
[pid 12739] close(3)                    = 0
[pid 12739] write(1, "executing program\n", 18executing program
) = 18
[pid 12739] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12739] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12739] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12739] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12739] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12739] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12739] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12740]}, 88) = 12740
[pid 12739] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12739] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12739] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12740 attached
 <unfinished ...>
[pid 12740] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12740] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12740] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12740] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12739] <... futex resumed>)        = 0
[pid 12740] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12739] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12739] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12740] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12740] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12739] <... futex resumed>)        = 0
[pid 12739] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12739] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12740] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12740] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12739] <... futex resumed>)        = 0
[pid 12739] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12739] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12740] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12740] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12739] <... futex resumed>)        = 0
[pid 12739] exit_group(0 <unfinished ...>
[pid 12740] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12739] <... exit_group resumed>)   = ?
[pid 12740] <... futex resumed>)        = ?
[pid 12740] +++ exited with 0 +++
[pid 12739] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12739, si_uid=0, si_status=0, 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 12741 attached
, child_tidptr=0x55558842d690) = 12741
[pid 12741] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12741] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12741] setpgid(0, 0)               = 0
[pid 12741] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12741] write(3, "1000", 4)         = 4
[pid 12741] close(3)                    = 0
[pid 12741] write(1, "executing program\n", 18executing program
) = 18
[pid 12741] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12741] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12741] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12741] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12741] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12741] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12741] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12742 attached
 <unfinished ...>
[pid 12742] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12741] <... clone3 resumed> => {parent_tid=[12742]}, 88) = 12742
[pid 12742] <... set_robust_list resumed>) = 0
[pid 12742] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12742] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12741] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12741] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12742] <... futex resumed>)        = 0
[pid 12742] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12742] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12742] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12741] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12741] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12742] <... futex resumed>)        = 0
[pid 12742] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12741] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12742] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12742] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12741] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12741] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12742] <... futex resumed>)        = 0
[pid 12742] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12742] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12742] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12741] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12741] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12742] <... futex resumed>)        = 0
[pid 12741] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12742] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12742] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12742] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12741] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12741] exit_group(0)               = ?
[pid 12742] <... futex resumed>)        = ?
[pid 12742] +++ exited with 0 +++
[pid 12741] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12741, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12743
./strace-static-x86_64: Process 12743 attached
[pid 12743] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12743] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12743] setpgid(0, 0)               = 0
[pid 12743] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12743] write(3, "1000", 4)         = 4
[pid 12743] close(3)                    = 0
[pid 12743] write(1, "executing program\n", 18executing program
) = 18
[pid 12743] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12743] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12743] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12743] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12743] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12743] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12743] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12744 attached
 => {parent_tid=[12744]}, 88) = 12744
[pid 12743] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12743] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12743] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12744] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12744] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12744] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12744] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12743] <... futex resumed>)        = 0
[pid 12743] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12743] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12744] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12744] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12743] <... futex resumed>)        = 0
[pid 12744] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12743] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12743] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12744] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12744] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12743] <... futex resumed>)        = 0
[pid 12743] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12743] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12744] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12744] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12743] <... futex resumed>)        = 0
[pid 12743] exit_group(0)               = ?
[pid 12744] +++ exited with 0 +++
[pid 12743] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12743, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12745
./strace-static-x86_64: Process 12745 attached
[pid 12745] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12745] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12745] setpgid(0, 0)               = 0
[pid 12745] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12745] write(3, "1000", 4)         = 4
[pid 12745] close(3)                    = 0
[pid 12745] write(1, "executing program\n", 18executing program
) = 18
[pid 12745] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12745] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12745] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12745] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12745] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12745] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12745] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12746 attached
 <unfinished ...>
[pid 12746] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12746] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12746] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12745] <... clone3 resumed> => {parent_tid=[12746]}, 88) = 12746
[pid 12745] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12745] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12746] <... futex resumed>)        = 0
[pid 12745] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12746] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12746] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12746] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12745] <... futex resumed>)        = 0
[pid 12745] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12746] <... futex resumed>)        = 0
[pid 12745] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12746] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12746] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12745] <... futex resumed>)        = 0
[pid 12746] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12745] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12746] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12745] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12746] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12746] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12745] <... futex resumed>)        = 0
[pid 12746] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12745] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12746] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12745] <... futex resumed>)        = 0
[pid 12746] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12745] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12746] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12746] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12745] <... futex resumed>)        = 0
[pid 12746] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12745] exit_group(0)               = ?
[pid 12746] <... futex resumed>)        = ?
[pid 12746] +++ exited with 0 +++
[pid 12745] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12745, 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=0x55558842d690) = 12747
./strace-static-x86_64: Process 12747 attached
[pid 12747] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12747] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12747] setpgid(0, 0)               = 0
[pid 12747] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12747] write(3, "1000", 4)         = 4
[pid 12747] close(3)                    = 0
executing program
[pid 12747] write(1, "executing program\n", 18) = 18
[pid 12747] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12747] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12747] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12747] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12747] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12747] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12747] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12748 attached
 => {parent_tid=[12748]}, 88) = 12748
[pid 12748] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12747] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12748] <... set_robust_list resumed>) = 0
[pid 12747] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12748] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12747] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12748] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12747] <... futex resumed>)        = 0
[pid 12747] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12748] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12748] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12747] <... futex resumed>)        = 0
[pid 12747] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12747] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12748] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12748] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12747] <... futex resumed>)        = 0
[pid 12747] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12747] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12748] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12748] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12747] <... futex resumed>)        = 0
[pid 12747] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12747] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12748] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12748] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12747] <... futex resumed>)        = 0
[pid 12747] exit_group(0)               = ?
[pid 12748] +++ exited with 0 +++
[pid 12747] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12747, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12749
./strace-static-x86_64: Process 12749 attached
[pid 12749] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12749] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12749] setpgid(0, 0)               = 0
[pid 12749] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12749] write(3, "1000", 4)         = 4
[pid 12749] close(3)                    = 0
[pid 12749] write(1, "executing program\n", 18executing program
) = 18
[pid 12749] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12749] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12749] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12749] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12749] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12749] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12749] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12750 attached
 => {parent_tid=[12750]}, 88) = 12750
[pid 12750] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12750] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12750] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12749] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12749] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12750] <... futex resumed>)        = 0
[pid 12750] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12750] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12750] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12749] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12749] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12750] <... futex resumed>)        = 0
[pid 12750] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12750] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12750] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12749] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12749] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12750] <... futex resumed>)        = 0
[pid 12750] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12750] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12750] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12749] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12749] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12750] <... futex resumed>)        = 0
[pid 12750] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12749] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12750] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12750] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12750] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12749] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12749] exit_group(0)               = ?
[pid 12750] <... futex resumed>)        = ?
[pid 12750] +++ exited with 0 +++
[pid 12749] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12749, si_uid=0, si_status=0, 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 12751 attached
, child_tidptr=0x55558842d690) = 12751
[pid 12751] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12751] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12751] setpgid(0, 0)               = 0
[pid 12751] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12751] write(3, "1000", 4)         = 4
[pid 12751] close(3)                    = 0
executing program
[pid 12751] write(1, "executing program\n", 18) = 18
[pid 12751] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12751] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12751] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12751] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12751] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12751] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12751] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12752 attached
 => {parent_tid=[12752]}, 88) = 12752
[pid 12751] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12751] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12751] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12752] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12752] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12752] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12752] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12751] <... futex resumed>)        = 0
[pid 12751] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12751] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12752] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12752] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12751] <... futex resumed>)        = 0
[pid 12751] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12751] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12752] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12752] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12751] <... futex resumed>)        = 0
[pid 12751] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12751] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12752] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12752] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12751] <... futex resumed>)        = 0
[pid 12751] exit_group(0)               = ?
[pid 12752] +++ exited with 0 +++
[pid 12751] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12751, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12753
./strace-static-x86_64: Process 12753 attached
[pid 12753] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12753] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12753] setpgid(0, 0)               = 0
[pid 12753] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12753] write(3, "1000", 4)         = 4
[pid 12753] close(3)                    = 0
[pid 12753] write(1, "executing program\n", 18executing program
) = 18
[pid 12753] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12753] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12753] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12753] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12753] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12753] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12753] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12754 attached
 => {parent_tid=[12754]}, 88) = 12754
[pid 12753] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12753] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12753] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12754] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12754] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12754] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12754] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12753] <... futex resumed>)        = 0
[pid 12753] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12753] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12754] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12754] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12753] <... futex resumed>)        = 0
[pid 12753] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12753] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12754] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12754] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12753] <... futex resumed>)        = 0
[pid 12753] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12753] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12754] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12754] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12753] <... futex resumed>)        = 0
[pid 12754] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12753] exit_group(0)               = ?
[pid 12754] <... futex resumed>)        = ?
[pid 12754] +++ exited with 0 +++
[pid 12753] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12753, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12755
./strace-static-x86_64: Process 12755 attached
[pid 12755] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12755] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12755] setpgid(0, 0)               = 0
[pid 12755] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12755] write(3, "1000", 4)         = 4
[pid 12755] close(3executing program
)                    = 0
[pid 12755] write(1, "executing program\n", 18) = 18
[pid 12755] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12755] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12755] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12755] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12755] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12755] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12755] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12756]}, 88) = 12756
[pid 12755] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12755] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12755] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12756 attached
 <unfinished ...>
[pid 12756] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12756] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12756] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12756] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12755] <... futex resumed>)        = 0
[pid 12755] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12755] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12756] <... futex resumed>)        = 1
[pid 12756] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12756] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12755] <... futex resumed>)        = 0
[pid 12755] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12755] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12756] <... futex resumed>)        = 1
[pid 12756] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12756] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12755] <... futex resumed>)        = 0
[pid 12755] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12755] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12756] <... futex resumed>)        = 1
[pid 12756] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12756] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12755] <... futex resumed>)        = 0
[pid 12755] exit_group(0)               = ?
[pid 12756] <... futex resumed>)        = ?
[pid 12756] +++ exited with 0 +++
[pid 12755] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12755, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12757
./strace-static-x86_64: Process 12757 attached
[pid 12757] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12757] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12757] setpgid(0, 0)               = 0
[pid 12757] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12757] write(3, "1000", 4)         = 4
[pid 12757] close(3)                    = 0
[pid 12757] write(1, "executing program\n", 18executing program
) = 18
[pid 12757] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12757] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12757] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12757] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12757] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12757] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12757] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12758 attached
 => {parent_tid=[12758]}, 88) = 12758
[pid 12758] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12757] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12757] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12757] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12758] <... set_robust_list resumed>) = 0
[pid 12758] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12758] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12758] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12757] <... futex resumed>)        = 0
[pid 12757] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12757] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12758] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12758] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12757] <... futex resumed>)        = 0
[pid 12757] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12757] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12758] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12758] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12757] <... futex resumed>)        = 0
[pid 12758] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12757] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12757] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12758] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12758] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12758] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12757] <... futex resumed>)        = 0
[pid 12757] exit_group(0)               = ?
[pid 12758] +++ exited with 0 +++
[pid 12757] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12757, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12759
./strace-static-x86_64: Process 12759 attached
[pid 12759] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12759] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12759] setpgid(0, 0)               = 0
[pid 12759] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12759] write(3, "1000", 4)         = 4
[pid 12759] close(3)                    = 0
[pid 12759] write(1, "executing program\n", 18executing program
) = 18
[pid 12759] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12759] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12759] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12759] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12759] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12759] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12759] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12760 attached
 => {parent_tid=[12760]}, 88) = 12760
[pid 12760] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12760] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12760] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12759] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12759] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12760] <... futex resumed>)        = 0
[pid 12760] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12759] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12760] <... 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 12760] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12760] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12759] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12759] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12760] <... futex resumed>)        = 0
[pid 12760] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12759] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12760] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12760] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12760] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12759] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12759] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12760] <... futex resumed>)        = 0
[pid 12760] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12760] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12760] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12759] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12759] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12760] <... futex resumed>)        = 0
[pid 12760] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12759] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12760] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12760] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12759] <... futex resumed>)        = 0
[pid 12759] exit_group(0)               = ?
[pid 12760] +++ exited with 0 +++
[pid 12759] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12759, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12761
./strace-static-x86_64: Process 12761 attached
[pid 12761] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12761] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12761] setpgid(0, 0)               = 0
[pid 12761] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12761] write(3, "1000", 4)         = 4
[pid 12761] close(3)                    = 0
[pid 12761] write(1, "executing program\n", 18executing program
) = 18
[pid 12761] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12761] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12761] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12761] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12761] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12761] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12761] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12762 attached
 <unfinished ...>
[pid 12762] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12762] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12762] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12761] <... clone3 resumed> => {parent_tid=[12762]}, 88) = 12762
[pid 12761] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12761] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12762] <... futex resumed>)        = 0
[pid 12762] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12762] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12762] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12761] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12761] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12762] <... futex resumed>)        = 0
[pid 12762] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12762] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12762] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12761] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12761] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12762] <... futex resumed>)        = 0
[pid 12762] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12762] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12762] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12761] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12761] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12762] <... futex resumed>)        = 0
[pid 12762] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12762] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12762] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12761] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12761] exit_group(0)               = ?
[pid 12762] <... futex resumed>)        = ?
[pid 12762] +++ exited with 0 +++
[pid 12761] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12761, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12763
./strace-static-x86_64: Process 12763 attached
[pid 12763] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12763] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12763] setpgid(0, 0)               = 0
[pid 12763] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
executing program
[pid 12763] write(3, "1000", 4)         = 4
[pid 12763] close(3)                    = 0
[pid 12763] write(1, "executing program\n", 18) = 18
[pid 12763] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12763] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12763] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12763] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12763] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12763] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12763] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12764]}, 88) = 12764
[pid 12763] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12763] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12763] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12764 attached
 <unfinished ...>
[pid 12764] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12764] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12764] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12764] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12763] <... futex resumed>)        = 0
[pid 12763] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12763] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12764] <... futex resumed>)        = 1
[pid 12764] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12764] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12763] <... futex resumed>)        = 0
[pid 12763] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12763] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12764] <... futex resumed>)        = 1
[pid 12764] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12764] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12763] <... futex resumed>)        = 0
[pid 12763] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12763] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12764] <... futex resumed>)        = 1
[pid 12764] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12764] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12763] <... futex resumed>)        = 0
[pid 12763] exit_group(0)               = ?
[pid 12764] <... futex resumed>)        = ?
[pid 12764] +++ exited with 0 +++
[pid 12763] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12763, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12765
./strace-static-x86_64: Process 12765 attached
[pid 12765] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12765] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12765] setpgid(0, 0)               = 0
[pid 12765] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12765] write(3, "1000", 4)         = 4
[pid 12765] close(3)                    = 0
[pid 12765] write(1, "executing program\n", 18executing program
) = 18
[pid 12765] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12765] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12765] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12765] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12765] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12765] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12765] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12766 attached
 => {parent_tid=[12766]}, 88) = 12766
[pid 12766] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12765] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12766] <... set_robust_list resumed>) = 0
[pid 12765] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12766] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12765] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12766] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12765] <... futex resumed>)        = 0
[pid 12766] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12765] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12766] <... 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 12766] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12765] <... futex resumed>)        = 0
[pid 12765] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12765] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12766] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12766] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12765] <... futex resumed>)        = 0
[pid 12765] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12765] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12766] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12766] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12765] <... futex resumed>)        = 0
[pid 12765] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12765] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12766] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12766] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12765] <... futex resumed>)        = 0
[pid 12766] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12765] exit_group(0)               = ?
[pid 12766] <... futex resumed>)        = ?
[pid 12766] +++ exited with 0 +++
[pid 12765] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12765, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12767
./strace-static-x86_64: Process 12767 attached
[pid 12767] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12767] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12767] setpgid(0, 0)               = 0
[pid 12767] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12767] write(3, "1000", 4)         = 4
[pid 12767] close(3)                    = 0
executing program
[pid 12767] write(1, "executing program\n", 18) = 18
[pid 12767] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12767] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12767] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12767] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12767] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12767] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12767] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12768]}, 88) = 12768
./strace-static-x86_64: Process 12768 attached
[pid 12767] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12768] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12767] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12768] <... set_robust_list resumed>) = 0
[pid 12767] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12768] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12767] <... futex resumed>)        = 0
[pid 12768] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12767] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12768] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12768] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12767] <... futex resumed>)        = 0
[pid 12767] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12767] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12768] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12768] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12767] <... futex resumed>)        = 0
[pid 12767] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12767] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12768] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12768] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12767] <... futex resumed>)        = 0
[pid 12767] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12767] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12768] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12768] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12767] <... futex resumed>)        = 0
[pid 12767] exit_group(0)               = ?
[pid 12768] +++ exited with 0 +++
[pid 12767] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12767, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12769
./strace-static-x86_64: Process 12769 attached
[pid 12769] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12769] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12769] setpgid(0, 0)               = 0
[pid 12769] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12769] write(3, "1000", 4)         = 4
[pid 12769] close(3)                    = 0
[pid 12769] write(1, "executing program\n", 18executing program
) = 18
[pid 12769] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12769] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12769] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12769] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12769] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12769] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12769] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12770 attached
 => {parent_tid=[12770]}, 88) = 12770
[pid 12770] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12770] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12770] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12769] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12769] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12770] <... futex resumed>)        = 0
[pid 12770] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12770] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12770] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12769] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12769] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12770] <... futex resumed>)        = 0
[pid 12770] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12770] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12770] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12769] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12769] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12770] <... futex resumed>)        = 0
[pid 12770] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12769] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12770] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12770] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12770] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12769] <... futex resumed>)        = 0
[pid 12769] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12770] <... futex resumed>)        = 0
[pid 12770] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12769] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12770] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12770] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12770] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12769] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12769] exit_group(0)               = ?
[pid 12770] <... futex resumed>)        = ?
[pid 12770] +++ exited with 0 +++
[pid 12769] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12769, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12771
./strace-static-x86_64: Process 12771 attached
[pid 12771] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12771] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12771] setpgid(0, 0)               = 0
[pid 12771] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12771] write(3, "1000", 4)         = 4
[pid 12771] close(3)                    = 0
executing program
[pid 12771] write(1, "executing program\n", 18) = 18
[pid 12771] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12771] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12771] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12771] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12771] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12771] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12771] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12772]}, 88) = 12772
[pid 12771] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12771] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12771] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12772 attached
 <unfinished ...>
[pid 12772] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12772] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12772] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12772] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12771] <... futex resumed>)        = 0
[pid 12771] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12771] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12772] <... futex resumed>)        = 1
[pid 12772] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12772] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12771] <... futex resumed>)        = 0
[pid 12771] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12771] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12772] <... futex resumed>)        = 1
[pid 12772] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12772] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12771] <... futex resumed>)        = 0
[pid 12771] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12771] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12772] <... futex resumed>)        = 1
[pid 12772] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12772] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12771] <... futex resumed>)        = 0
[pid 12771] exit_group(0 <unfinished ...>
[pid 12772] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12771] <... exit_group resumed>)   = ?
[pid 12772] <... futex resumed>)        = ?
[pid 12772] +++ exited with 0 +++
[pid 12771] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12771, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12773
./strace-static-x86_64: Process 12773 attached
[pid 12773] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12773] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12773] setpgid(0, 0)               = 0
[pid 12773] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12773] write(3, "1000", 4)         = 4
[pid 12773] close(3)                    = 0
[pid 12773] write(1, "executing program\n", 18executing program
) = 18
[pid 12773] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12773] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12773] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12773] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12773] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12773] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12773] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12774 attached
 => {parent_tid=[12774]}, 88) = 12774
[pid 12774] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12774] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12774] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12773] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12773] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12774] <... futex resumed>)        = 0
[pid 12773] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12774] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12774] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12773] <... futex resumed>)        = 0
[pid 12773] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12773] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12774] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12774] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12773] <... futex resumed>)        = 0
[pid 12773] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12773] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12774] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12774] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12773] <... futex resumed>)        = 0
[pid 12773] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12773] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12774] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12774] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12773] <... futex resumed>)        = 0
[pid 12773] exit_group(0)               = ?
[pid 12774] +++ exited with 0 +++
[pid 12773] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12773, si_uid=0, si_status=0, 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 12775 attached
, child_tidptr=0x55558842d690) = 12775
[pid 12775] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12775] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12775] setpgid(0, 0)               = 0
[pid 12775] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12775] write(3, "1000", 4)         = 4
[pid 12775] close(3executing program
)                    = 0
[pid 12775] write(1, "executing program\n", 18) = 18
[pid 12775] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12775] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12775] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12775] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12775] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12775] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12775] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12776]}, 88) = 12776
[pid 12775] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12775] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12775] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12776 attached
 <unfinished ...>
[pid 12776] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12776] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12776] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12776] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12775] <... futex resumed>)        = 0
[pid 12775] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12775] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12776] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12776] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12775] <... futex resumed>)        = 0
[pid 12775] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12775] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12776] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12776] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12775] <... futex resumed>)        = 0
[pid 12775] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12775] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12776] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12776] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12775] <... futex resumed>)        = 0
[pid 12776] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12775] exit_group(0)               = ?
[pid 12776] <... futex resumed>)        = ?
[pid 12776] +++ exited with 0 +++
[pid 12775] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12775, si_uid=0, si_status=0, 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 12777 attached
, child_tidptr=0x55558842d690) = 12777
[pid 12777] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12777] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12777] setpgid(0, 0)               = 0
[pid 12777] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12777] write(3, "1000", 4)         = 4
[pid 12777] close(3)                    = 0
[pid 12777] write(1, "executing program\n", 18executing program
) = 18
[pid 12777] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12777] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12777] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12777] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12777] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12777] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12777] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12778 attached
 <unfinished ...>
[pid 12778] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12777] <... clone3 resumed> => {parent_tid=[12778]}, 88) = 12778
[pid 12777] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12778] <... set_robust_list resumed>) = 0
[pid 12777] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12778] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12777] <... futex resumed>)        = 0
[pid 12778] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12778] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12777] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12778] <... 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 12778] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12777] <... futex resumed>)        = 0
[pid 12777] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12777] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12778] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12778] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12777] <... futex resumed>)        = 0
[pid 12777] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12777] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12778] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12778] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12777] <... futex resumed>)        = 0
[pid 12777] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12777] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12778] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12778] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12777] <... futex resumed>)        = 0
[pid 12777] exit_group(0)               = ?
[pid 12778] +++ exited with 0 +++
[pid 12777] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12777, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12779
./strace-static-x86_64: Process 12779 attached
[pid 12779] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12779] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12779] setpgid(0, 0)               = 0
[pid 12779] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12779] write(3, "1000", 4)         = 4
[pid 12779] close(3)                    = 0
[pid 12779] write(1, "executing program\n", 18executing program
) = 18
[pid 12779] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12779] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12779] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12779] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12779] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12779] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12779] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12780 attached
 => {parent_tid=[12780]}, 88) = 12780
[pid 12779] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12779] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12779] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12780] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12780] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12780] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12780] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12779] <... futex resumed>)        = 0
[pid 12779] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12779] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12780] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12780] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12779] <... futex resumed>)        = 0
[pid 12779] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12779] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12780] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12780] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12779] <... futex resumed>)        = 0
[pid 12779] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12779] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12780] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12780] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12779] <... futex resumed>)        = 0
[pid 12779] exit_group(0)               = ?
[pid 12780] +++ exited with 0 +++
[pid 12779] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12779, si_uid=0, si_status=0, 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 12781 attached
, child_tidptr=0x55558842d690) = 12781
[pid 12781] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12781] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12781] setpgid(0, 0)               = 0
[pid 12781] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12781] write(3, "1000", 4)         = 4
[pid 12781] close(3)                    = 0
executing program
[pid 12781] write(1, "executing program\n", 18) = 18
[pid 12781] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12781] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12781] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12781] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12781] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12781] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12781] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12782]}, 88) = 12782
[pid 12781] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12781] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12781] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12782 attached
 <unfinished ...>
[pid 12782] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12782] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12782] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12782] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12781] <... futex resumed>)        = 0
[pid 12781] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12781] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12782] <... futex resumed>)        = 1
[pid 12782] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12782] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12781] <... futex resumed>)        = 0
[pid 12782] <... futex resumed>)        = 1
[pid 12781] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12782] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12781] <... futex resumed>)        = 0
[pid 12781] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12782] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12782] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12781] <... futex resumed>)        = 0
[pid 12782] <... futex resumed>)        = 1
[pid 12781] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12781] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12782] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12782] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12781] <... futex resumed>)        = 0
[pid 12781] exit_group(0)               = ?
[pid 12782] <... futex resumed>)        = ?
[pid 12782] +++ exited with 0 +++
[pid 12781] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12781, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12783
./strace-static-x86_64: Process 12783 attached
[pid 12783] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12783] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12783] setpgid(0, 0)               = 0
[pid 12783] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12783] write(3, "1000", 4)         = 4
[pid 12783] close(3)                    = 0
[pid 12783] write(1, "executing program\n", 18executing program
) = 18
[pid 12783] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12783] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12783] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12783] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12783] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12783] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12783] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12784 attached
 => {parent_tid=[12784]}, 88) = 12784
[pid 12784] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12783] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12784] <... set_robust_list resumed>) = 0
[pid 12783] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12784] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12783] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12784] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12783] <... futex resumed>)        = 0
[pid 12783] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12784] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12784] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12783] <... futex resumed>)        = 0
[pid 12784] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12783] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12784] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12783] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12784] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12784] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12783] <... futex resumed>)        = 0
[pid 12783] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12783] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12784] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12784] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12783] <... futex resumed>)        = 0
[pid 12783] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12784] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12783] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12784] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12784] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12783] <... futex resumed>)        = 0
[pid 12783] exit_group(0)               = ?
[pid 12784] +++ exited with 0 +++
[pid 12783] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12783, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12785
./strace-static-x86_64: Process 12785 attached
[pid 12785] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12785] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12785] setpgid(0, 0)               = 0
[pid 12785] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12785] write(3, "1000", 4)         = 4
[pid 12785] close(3)                    = 0
[pid 12785] write(1, "executing program\n", 18executing program
) = 18
[pid 12785] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12785] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12785] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12785] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12785] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12785] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12785] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12786 attached
 => {parent_tid=[12786]}, 88) = 12786
[pid 12786] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12786] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12786] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12785] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12785] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12786] <... futex resumed>)        = 0
[pid 12786] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12786] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12786] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12785] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12785] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12786] <... futex resumed>)        = 0
[pid 12786] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12786] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12786] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12785] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12785] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12786] <... futex resumed>)        = 0
[pid 12786] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12786] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12786] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12785] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12785] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12786] <... futex resumed>)        = 0
[pid 12786] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12786] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12786] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12785] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12785] exit_group(0)               = ?
[pid 12786] <... futex resumed>)        = ?
[pid 12786] +++ exited with 0 +++
[pid 12785] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12785, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12787
./strace-static-x86_64: Process 12787 attached
[pid 12787] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12787] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12787] setpgid(0, 0)               = 0
[pid 12787] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12787] write(3, "1000", 4)         = 4
[pid 12787] close(3)                    = 0
executing program
[pid 12787] write(1, "executing program\n", 18) = 18
[pid 12787] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12787] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12787] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12787] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12787] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12787] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12787] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12788 attached
 => {parent_tid=[12788]}, 88) = 12788
[pid 12788] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12787] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12787] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12787] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12788] <... set_robust_list resumed>) = 0
[pid 12788] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12788] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12787] <... futex resumed>)        = 0
[pid 12787] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12787] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12788] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12788] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12787] <... futex resumed>)        = 0
[pid 12787] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12788] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12787] <... futex resumed>)        = 0
[pid 12787] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12788] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12788] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12787] <... futex resumed>)        = 0
[pid 12787] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12787] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12788] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12788] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12787] <... futex resumed>)        = 0
[pid 12787] exit_group(0)               = ?
[pid 12788] +++ exited with 0 +++
[pid 12787] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12787, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12789
./strace-static-x86_64: Process 12789 attached
[pid 12789] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12789] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12789] setpgid(0, 0)               = 0
[pid 12789] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12789] write(3, "1000", 4)         = 4
[pid 12789] close(3)                    = 0
[pid 12789] write(1, "executing program\n", 18executing program
) = 18
[pid 12789] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12789] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12789] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12789] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12789] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12789] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12789] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12790 attached
 => {parent_tid=[12790]}, 88) = 12790
[pid 12789] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12789] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12789] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12790] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12790] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12790] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12790] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12789] <... futex resumed>)        = 0
[pid 12789] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12789] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12790] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12790] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12789] <... futex resumed>)        = 0
[pid 12789] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12789] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12790] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12790] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12789] <... futex resumed>)        = 0
[pid 12789] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12789] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12790] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12790] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12789] <... futex resumed>)        = 0
[pid 12789] exit_group(0)               = ?
[pid 12790] +++ exited with 0 +++
[pid 12789] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12789, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12791
./strace-static-x86_64: Process 12791 attached
[pid 12791] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12791] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12791] setpgid(0, 0)               = 0
[pid 12791] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12791] write(3, "1000", 4)         = 4
[pid 12791] close(3)                    = 0
executing program
[pid 12791] write(1, "executing program\n", 18) = 18
[pid 12791] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12791] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12791] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12791] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12791] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12791] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12791] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12792 attached
 => {parent_tid=[12792]}, 88) = 12792
[pid 12792] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12792] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12792] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12791] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12791] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12792] <... futex resumed>)        = 0
[pid 12791] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12792] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12792] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12791] <... futex resumed>)        = 0
[pid 12792] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12791] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12791] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12792] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12792] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12791] <... futex resumed>)        = 0
[pid 12792] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12791] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12791] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12792] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12792] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12791] <... futex resumed>)        = 0
[pid 12791] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12791] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12792] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12792] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12791] <... futex resumed>)        = 0
[pid 12792] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12791] exit_group(0)               = ?
[pid 12792] <... futex resumed>)        = ?
[pid 12792] +++ exited with 0 +++
[pid 12791] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12791, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12793
./strace-static-x86_64: Process 12793 attached
[pid 12793] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12793] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12793] setpgid(0, 0)               = 0
[pid 12793] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12793] write(3, "1000", 4)         = 4
[pid 12793] close(3)                    = 0
[pid 12793] write(1, "executing program\n", 18executing program
) = 18
[pid 12793] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12793] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12793] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12793] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12793] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12793] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12793] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12794 attached
 => {parent_tid=[12794]}, 88) = 12794
[pid 12794] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12794] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12794] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12793] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12793] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12794] <... futex resumed>)        = 0
[pid 12794] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12793] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12794] <... 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 12794] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12794] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12793] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12793] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12794] <... futex resumed>)        = 0
[pid 12794] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12794] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12794] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12793] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12793] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12794] <... futex resumed>)        = 0
[pid 12794] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12794] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12794] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12793] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12793] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12794] <... futex resumed>)        = 0
[pid 12794] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12794] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12794] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12793] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12793] exit_group(0)               = ?
[pid 12794] <... futex resumed>)        = ?
[pid 12794] +++ exited with 0 +++
[pid 12793] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12793, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12795
./strace-static-x86_64: Process 12795 attached
[pid 12795] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12795] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12795] setpgid(0, 0)               = 0
[pid 12795] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12795] write(3, "1000", 4)         = 4
[pid 12795] close(3executing program
)                    = 0
[pid 12795] write(1, "executing program\n", 18) = 18
[pid 12795] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12795] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12795] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12795] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12795] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12795] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12795] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12796 attached
 => {parent_tid=[12796]}, 88) = 12796
[pid 12795] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12796] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12795] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12796] <... set_robust_list resumed>) = 0
[pid 12795] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12796] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12795] <... futex resumed>)        = 0
[pid 12796] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12795] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12796] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12796] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12795] <... futex resumed>)        = 0
[pid 12795] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12795] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12796] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12796] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12795] <... futex resumed>)        = 0
[pid 12795] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12795] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12796] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12796] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12795] <... futex resumed>)        = 0
[pid 12795] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12795] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12796] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12796] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12795] <... futex resumed>)        = 0
[pid 12795] exit_group(0)               = ?
[pid 12796] +++ exited with 0 +++
[pid 12795] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12795, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12797
./strace-static-x86_64: Process 12797 attached
[pid 12797] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12797] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12797] setpgid(0, 0)               = 0
[pid 12797] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12797] write(3, "1000", 4)         = 4
[pid 12797] close(3)                    = 0
[pid 12797] write(1, "executing program\n", 18executing program
) = 18
[pid 12797] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12797] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12797] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12797] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12797] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12797] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12797] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12799 attached
 => {parent_tid=[12799]}, 88) = 12799
[pid 12799] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12799] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12799] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12797] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12797] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12799] <... futex resumed>)        = 0
[pid 12799] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12797] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12799] <... 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 12799] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12799] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12797] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12797] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12799] <... futex resumed>)        = 0
[pid 12799] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12799] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12797] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12799] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12797] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12797] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12799] <... futex resumed>)        = 0
[pid 12799] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12799] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12799] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12797] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12797] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12799] <... futex resumed>)        = 0
[pid 12799] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12799] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12799] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12797] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12797] exit_group(0)               = ?
[pid 12799] <... futex resumed>)        = ?
[pid 12799] +++ exited with 0 +++
[pid 12797] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12797, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12800
./strace-static-x86_64: Process 12800 attached
[pid 12800] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12800] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12800] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12801 attached
 => {parent_tid=[12801]}, 88) = 12801
[pid 12801] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12800] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12801] <... set_robust_list resumed>) = 0
[pid 12800] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12801] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12800] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12801] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12800] <... futex resumed>)        = 0
[pid 12801] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12800] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12801] <... 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 12801] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12801] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12800] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12800] futex(0x7fee38f303e8, 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 12800] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12801] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12800] <... futex resumed>)        = 0
[pid 12800] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12800] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12800] <... futex resumed>)        = 0
[pid 12800] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12800] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12800] <... futex resumed>)        = 0
[pid 12800] exit_group(0)               = ?
[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=0x55558842d690) = 12802
./strace-static-x86_64: Process 12802 attached
[pid 12802] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12802] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12802] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12803 attached
 => {parent_tid=[12803]}, 88) = 12803
[pid 12803] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12802] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12803] <... set_robust_list resumed>) = 0
[pid 12803] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12803] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12802] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12802] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12803] <... futex resumed>)        = 0
[pid 12803] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12802] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12803] <... 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 12803] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12803] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12802] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12802] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12803] <... futex resumed>)        = 0
[pid 12803] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12802] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12803] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12802] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12802] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12803] <... futex resumed>)        = 0
[pid 12802] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12803] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12802] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12802] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12803] <... futex resumed>)        = 0
[pid 12802] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12803] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12802] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12802] exit_group(0)               = ?
[pid 12803] <... futex resumed>)        = ?
[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=0x55558842d690) = 12804
./strace-static-x86_64: Process 12804 attached
[pid 12804] set_robust_list(0x55558842d6a0, 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
[pid 12804] write(1, "executing program\n", 18executing program
) = 18
[pid 12804] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12804] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12804] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12805 attached
 => {parent_tid=[12805]}, 88) = 12805
[pid 12805] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12805] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12805] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12804] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12804] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12805] <... futex resumed>)        = 0
[pid 12805] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12804] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12805] <... 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 12805] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12805] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12804] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12804] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12805] <... futex resumed>)        = 0
[pid 12805] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12805] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12804] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12805] <... futex resumed>)        = 0
[pid 12805] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12804] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12804] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12805] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12805] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12804] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12804] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12805] <... futex resumed>)        = 0
[pid 12805] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12804] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12805] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12805] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12805] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12804] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12804] exit_group(0)               = ?
[pid 12805] <... futex resumed>)        = ?
[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=0x55558842d690) = 12806
./strace-static-x86_64: Process 12806 attached
[pid 12806] set_robust_list(0x55558842d6a0, 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(3executing program
)                    = 0
[pid 12806] write(1, "executing program\n", 18) = 18
[pid 12806] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12806] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12806] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12807 attached
 => {parent_tid=[12807]}, 88) = 12807
[pid 12807] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12807] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12807] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12806] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12806] futex(0x7fee38f303e8, 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 <unfinished ...>
[pid 12806] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12807] <... 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 12807] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12806] <... futex resumed>)        = 0
[pid 12806] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12806] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12807] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12807] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12806] <... futex resumed>)        = 0
[pid 12806] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12806] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12807] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12807] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12806] <... futex resumed>)        = 0
[pid 12806] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12806] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12807] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12807] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12806] <... futex resumed>)        = 0
[pid 12806] exit_group(0)               = ?
[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=0x55558842d690) = 12808
./strace-static-x86_64: Process 12808 attached
[pid 12808] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12808] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12808] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12809 attached
 => {parent_tid=[12809]}, 88) = 12809
[pid 12809] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12809] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12809] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12808] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12808] futex(0x7fee38f303e8, 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 12809] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12809] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12808] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12808] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12809] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12808] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12808] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12809] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12809] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12808] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12808] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12809] <... futex resumed>)        = 0
[pid 12809] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12809] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12809] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12808] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12808] exit_group(0)               = ?
[pid 12809] <... futex resumed>)        = ?
[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./strace-static-x86_64: Process 12810 attached
, child_tidptr=0x55558842d690) = 12810
[pid 12810] set_robust_list(0x55558842d6a0, 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(3)                    = 0
[pid 12810] write(1, "executing program\n", 18executing program
) = 18
[pid 12810] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12810] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12810] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12811 attached
 => {parent_tid=[12811]}, 88) = 12811
[pid 12811] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12811] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12811] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12810] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12810] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12811] <... futex resumed>)        = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12811] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12810] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12810] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12811] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12810] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12810] futex(0x7fee38f303e8, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12811] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12810] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12810] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12811] <... futex resumed>)        = 0
[pid 12810] <... futex resumed>)        = 1
[pid 12811] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12811] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12811] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12810] futex(0x7fee38f303ec, 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, child_tidptr=0x55558842d690) = 12812
./strace-static-x86_64: Process 12812 attached
[pid 12812] set_robust_list(0x55558842d6a0, 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(3)                    = 0
[pid 12812] write(1, "executing program\n", 18executing program
) = 18
[pid 12812] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12812] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12812] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12813 attached
 => {parent_tid=[12813]}, 88) = 12813
[pid 12812] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12812] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12812] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12813] set_robust_list(0x7fee38e679a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12812] <... futex resumed>)        = 0
[pid 12812] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12812] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12813] <... futex resumed>)        = 1
[pid 12813] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12813] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12812] <... futex resumed>)        = 0
[pid 12812] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12812] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12813] <... futex resumed>)        = 1
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12812] <... futex resumed>)        = 0
[pid 12812] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12812] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12813] <... futex resumed>)        = 1
[pid 12813] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12813] futex(0x7fee38f303ec, 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=0x55558842d690) = 12814
./strace-static-x86_64: Process 12814 attached
[pid 12814] set_robust_list(0x55558842d6a0, 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
[pid 12814] write(1, "executing program\n", 18executing program
) = 18
[pid 12814] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12814] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12814] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12815 attached
 => {parent_tid=[12815]}, 88) = 12815
[pid 12815] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12815] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12815] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12814] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12814] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12815] <... futex resumed>)        = 0
[pid 12815] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12814] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12815] <... 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 12815] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12815] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12814] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12814] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12815] <... futex resumed>)        = 0
[pid 12815] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12814] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12815] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12815] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12814] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12814] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12815] <... futex resumed>)        = 0
[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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12815] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12814] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12814] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12815] <... futex resumed>)        = 0
[pid 12814] futex(0x7fee38f303ec, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12815] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12814] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12814] exit_group(0)               = ?
[pid 12815] <... futex 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=0x55558842d690) = 12816
./strace-static-x86_64: Process 12816 attached
[pid 12816] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12816] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12816] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12817]}, 88) = 12817
[pid 12816] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12816] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12816] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12817 attached
 <unfinished ...>
[pid 12817] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12817] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12816] <... futex resumed>)        = 0
[pid 12816] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12816] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12817] <... futex resumed>)        = 1
[pid 12817] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12817] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12816] <... futex resumed>)        = 0
[pid 12816] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12816] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12817] <... futex resumed>)        = 1
[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 12817] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12816] <... futex resumed>)        = 0
[pid 12816] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12816] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12817] <... futex resumed>)        = 1
[pid 12817] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12817] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12816] <... futex resumed>)        = 0
[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, child_tidptr=0x55558842d690) = 12818
./strace-static-x86_64: Process 12818 attached
[pid 12818] set_robust_list(0x55558842d6a0, 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(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12818] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, 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) = 0x7fee38e47000
[pid 12818] mprotect(0x7fee38e48000, 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=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12819 attached
 <unfinished ...>
[pid 12819] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12818] <... clone3 resumed> => {parent_tid=[12819]}, 88) = 12819
[pid 12818] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12819] <... set_robust_list resumed>) = 0
[pid 12818] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12819] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12818] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12819] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12818] <... futex resumed>)        = 0
[pid 12819] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12818] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12819] <... 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 12819] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12818] <... futex resumed>)        = 0
[pid 12818] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12818] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12819] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12819] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12818] <... futex resumed>)        = 0
[pid 12818] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12818] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12819] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12819] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12818] <... futex resumed>)        = 0
[pid 12818] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12818] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12819] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12819] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12818] <... futex resumed>)        = 0
[pid 12818] exit_group(0)               = ?
[pid 12819] +++ exited with 0 +++
[pid 12818] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12818, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12820
./strace-static-x86_64: Process 12820 attached
[pid 12820] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12820] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12820] setpgid(0, 0)               = 0
[pid 12820] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12820] write(3, "1000", 4)         = 4
[pid 12820] close(3)                    = 0
[pid 12820] write(1, "executing program\n", 18executing program
) = 18
[pid 12820] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12820] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12820] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12820] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12820] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12820] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12820] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12821 attached
 => {parent_tid=[12821]}, 88) = 12821
[pid 12821] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12820] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12821] <... set_robust_list resumed>) = 0
[pid 12820] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12821] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12820] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12821] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12820] <... futex resumed>)        = 0
[pid 12820] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12821] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12821] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12820] <... futex resumed>)        = 0
[pid 12820] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12820] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12821] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12821] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12820] <... futex resumed>)        = 0
[pid 12820] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12820] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12821] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12821] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12820] <... futex resumed>)        = 0
[pid 12820] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12820] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12821] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12821] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12820] <... futex resumed>)        = 0
[pid 12820] exit_group(0)               = ?
[pid 12821] +++ exited with 0 +++
[pid 12820] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12820, si_uid=0, si_status=0, 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 12822 attached
, child_tidptr=0x55558842d690) = 12822
[pid 12822] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12822] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12822] setpgid(0, 0)               = 0
[pid 12822] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12822] write(3, "1000", 4)         = 4
[pid 12822] close(3)                    = 0
[pid 12822] write(1, "executing program\n", 18executing program
) = 18
[pid 12822] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12822] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12822] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12822] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12822] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12822] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12822] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12823 attached
 => {parent_tid=[12823]}, 88) = 12823
[pid 12823] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12823] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12823] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12822] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12822] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12823] <... futex resumed>)        = 0
[pid 12822] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12823] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12823] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12823] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12822] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12822] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12823] <... futex resumed>)        = 0
[pid 12823] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12823] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12823] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12822] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12822] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12823] <... futex resumed>)        = 0
[pid 12823] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12823] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12823] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12822] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12822] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12823] <... futex resumed>)        = 0
[pid 12823] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12823] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12823] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12822] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12822] exit_group(0)               = ?
[pid 12823] <... futex resumed>)        = ?
[pid 12823] +++ exited with 0 +++
[pid 12822] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12822, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12824
./strace-static-x86_64: Process 12824 attached
[pid 12824] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12824] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12824] setpgid(0, 0)               = 0
[pid 12824] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12824] write(3, "1000", 4)         = 4
[pid 12824] close(3)                    = 0
executing program
[pid 12824] write(1, "executing program\n", 18) = 18
[pid 12824] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12824] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12824] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12824] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12824] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12824] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12824] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12825]}, 88) = 12825
[pid 12824] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12824] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12824] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12825 attached
 <unfinished ...>
[pid 12825] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12825] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12825] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12825] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12824] <... futex resumed>)        = 0
[pid 12824] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12824] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12825] <... futex resumed>)        = 1
[pid 12825] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12825] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12824] <... futex resumed>)        = 0
[pid 12824] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12824] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12825] <... futex resumed>)        = 1
[pid 12825] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12825] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12824] <... futex resumed>)        = 0
[pid 12824] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12824] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12825] <... futex resumed>)        = 1
[pid 12825] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12825] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12824] <... futex resumed>)        = 0
[pid 12824] exit_group(0)               = ?
[pid 12825] <... futex resumed>)        = ?
[pid 12825] +++ exited with 0 +++
[pid 12824] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12824, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12826
./strace-static-x86_64: Process 12826 attached
[pid 12826] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12826] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12826] setpgid(0, 0)               = 0
[pid 12826] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12826] write(3, "1000", 4)         = 4
[pid 12826] close(3executing program
)                    = 0
[pid 12826] write(1, "executing program\n", 18) = 18
[pid 12826] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12826] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12826] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12826] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12826] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12826] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12826] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12827 attached
 <unfinished ...>
[pid 12827] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12826] <... clone3 resumed> => {parent_tid=[12827]}, 88) = 12827
[pid 12826] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12826] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12826] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12827] <... set_robust_list resumed>) = 0
[pid 12827] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12827] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12827] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12826] <... futex resumed>)        = 0
[pid 12827] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12826] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12827] <... futex resumed>)        = 0
[pid 12827] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12827] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12827] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12826] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12826] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12827] <... futex resumed>)        = 0
[pid 12827] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12827] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12827] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12826] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12826] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12827] <... futex resumed>)        = 0
[pid 12827] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12827] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12827] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12826] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12826] exit_group(0)               = ?
[pid 12827] <... futex resumed>)        = ?
[pid 12827] +++ exited with 0 +++
[pid 12826] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12826, si_uid=0, si_status=0, 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 12828 attached
, child_tidptr=0x55558842d690) = 12828
[pid 12828] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12828] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12828] setpgid(0, 0)               = 0
[pid 12828] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12828] write(3, "1000", 4)         = 4
[pid 12828] close(3)                    = 0
[pid 12828] write(1, "executing program\n", 18executing program
) = 18
[pid 12828] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12828] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12828] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12828] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12828] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12828] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12828] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12829 attached
 <unfinished ...>
[pid 12829] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12829] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12829] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12828] <... clone3 resumed> => {parent_tid=[12829]}, 88) = 12829
[pid 12828] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12828] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12829] <... futex resumed>)        = 0
[pid 12829] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12829] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12829] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12828] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12828] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12829] <... futex resumed>)        = 0
[pid 12829] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12829] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12829] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12828] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12828] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12829] <... futex resumed>)        = 0
[pid 12829] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12829] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12829] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12828] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12828] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12829] <... futex resumed>)        = 0
[pid 12829] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12829] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12829] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12828] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12828] exit_group(0)               = ?
[pid 12829] <... futex resumed>)        = ?
[pid 12829] +++ exited with 0 +++
[pid 12828] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12828, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12830
./strace-static-x86_64: Process 12830 attached
[pid 12830] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12830] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12830] setpgid(0, 0)               = 0
[pid 12830] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12830] write(3, "1000", 4)         = 4
[pid 12830] close(3)                    = 0
[pid 12830] write(1, "executing program\n", 18executing program
) = 18
[pid 12830] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12830] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12830] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12830] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12830] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12830] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12830] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12831 attached
 => {parent_tid=[12831]}, 88) = 12831
[pid 12831] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12830] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12831] <... set_robust_list resumed>) = 0
[pid 12830] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12831] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12830] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12831] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12830] <... futex resumed>)        = 0
[pid 12830] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12831] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12831] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12830] <... futex resumed>)        = 0
[pid 12831] <... futex resumed>)        = 1
[pid 12830] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12831] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12830] <... futex resumed>)        = 0
[pid 12830] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12831] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12831] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12830] <... futex resumed>)        = 0
[pid 12831] <... futex resumed>)        = 1
[pid 12831] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12830] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12830] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12831] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12831] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12830] <... futex resumed>)        = 0
[pid 12831] <... futex resumed>)        = 1
[pid 12830] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12830] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12831] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12831] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12830] <... futex resumed>)        = 0
[pid 12830] exit_group(0)               = ?
[pid 12831] <... futex resumed>)        = ?
[pid 12831] +++ exited with 0 +++
[pid 12830] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12830, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12832
./strace-static-x86_64: Process 12832 attached
[pid 12832] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12832] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12832] setpgid(0, 0)               = 0
[pid 12832] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12832] write(3, "1000", 4)         = 4
[pid 12832] close(3)                    = 0
[pid 12832] write(1, "executing program\n", 18executing program
) = 18
[pid 12832] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12832] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12832] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12832] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12832] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12832] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12832] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12833]}, 88) = 12833
[pid 12832] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12832] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12832] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12833 attached
 <unfinished ...>
[pid 12833] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12833] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12833] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12833] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12832] <... futex resumed>)        = 0
[pid 12832] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12832] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12833] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12833] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12832] <... futex resumed>)        = 0
[pid 12832] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12832] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12833] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12833] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12832] <... futex resumed>)        = 0
[pid 12832] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12832] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12833] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12833] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12832] <... futex resumed>)        = 0
[pid 12832] exit_group(0)               = ?
[pid 12833] +++ exited with 0 +++
[pid 12832] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12832, si_uid=0, si_status=0, 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 12834 attached
 <unfinished ...>
[pid 12834] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12834] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12834] setpgid(0, 0)               = 0
[pid   555] <... clone resumed>, child_tidptr=0x55558842d690) = 12834
[pid 12834] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12834] write(3, "1000", 4)         = 4
[pid 12834] close(3executing program
)                    = 0
[pid 12834] write(1, "executing program\n", 18) = 18
[pid 12834] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12834] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12834] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12834] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12834] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12834] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12834] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12835 attached
 => {parent_tid=[12835]}, 88) = 12835
[pid 12834] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12835] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12834] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12835] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12834] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12835] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12834] <... futex resumed>)        = 0
[pid 12834] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12835] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12835] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12834] <... futex resumed>)        = 0
[pid 12834] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12834] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12835] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12835] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12834] <... futex resumed>)        = 0
[pid 12834] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12834] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12835] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12835] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12834] <... futex resumed>)        = 0
[pid 12835] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12834] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12835] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12834] <... futex resumed>)        = 0
[pid 12835] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12834] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12835] <... futex resumed>)        = 0
[pid 12834] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12835] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12834] exit_group(0 <unfinished ...>
[pid 12835] <... futex resumed>)        = ?
[pid 12834] <... exit_group resumed>)   = ?
[pid 12835] +++ exited with 0 +++
[pid 12834] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12834, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12836
./strace-static-x86_64: Process 12836 attached
[pid 12836] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12836] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12836] setpgid(0, 0)               = 0
[pid 12836] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12836] write(3, "1000", 4)         = 4
[pid 12836] close(3)                    = 0
[pid 12836] write(1, "executing program\n", 18executing program
) = 18
[pid 12836] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12836] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12836] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12836] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12836] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12836] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12836] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12837 attached
 => {parent_tid=[12837]}, 88) = 12837
[pid 12837] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12836] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12837] <... set_robust_list resumed>) = 0
[pid 12836] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12837] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12836] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12837] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12836] <... futex resumed>)        = 0
[pid 12837] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12836] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12837] <... 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 12837] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12836] <... futex resumed>)        = 0
[pid 12836] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12837] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12836] <... futex resumed>)        = 0
[pid 12836] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12837] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12837] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12836] <... futex resumed>)        = 0
[pid 12836] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12836] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12837] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12837] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12836] <... futex resumed>)        = 0
[pid 12836] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12837] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12836] <... futex resumed>)        = 0
[pid 12836] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12837] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12837] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12836] <... futex resumed>)        = 0
[pid 12836] exit_group(0)               = ?
[pid 12837] +++ exited with 0 +++
[pid 12836] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12836, si_uid=0, si_status=0, 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 12838 attached
, child_tidptr=0x55558842d690) = 12838
[pid 12838] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12838] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12838] setpgid(0, 0)               = 0
[pid 12838] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12838] write(3, "1000", 4)         = 4
[pid 12838] close(3)                    = 0
[pid 12838] write(1, "executing program\n", 18executing program
) = 18
[pid 12838] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12838] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12838] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12838] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12838] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12838] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12838] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12839 attached
 => {parent_tid=[12839]}, 88) = 12839
[pid 12839] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12839] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12839] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12838] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12838] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12839] <... futex resumed>)        = 0
[pid 12838] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12839] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12839] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12839] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12838] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12838] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12839] <... futex resumed>)        = 0
[pid 12839] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12839] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12839] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12838] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12838] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12839] <... futex resumed>)        = 0
[pid 12838] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12839] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12839] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12839] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12838] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12838] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12839] <... futex resumed>)        = 0
[pid 12839] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12838] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12839] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12839] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12839] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12838] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12838] exit_group(0)               = ?
[pid 12839] <... futex resumed>)        = ?
[pid 12839] +++ exited with 0 +++
[pid 12838] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12838, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12840
./strace-static-x86_64: Process 12840 attached
[pid 12840] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12840] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12840] setpgid(0, 0)               = 0
[pid 12840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12840] write(3, "1000", 4)         = 4
[pid 12840] close(3)                    = 0
[pid 12840] write(1, "executing program\n", 18executing program
) = 18
[pid 12840] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12840] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12840] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12840] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12840] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12840] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12840] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12841 attached
 <unfinished ...>
[pid 12841] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12841] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12841] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12840] <... clone3 resumed> => {parent_tid=[12841]}, 88) = 12841
[pid 12840] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12840] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12841] <... futex resumed>)        = 0
[pid 12841] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12841] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12841] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12840] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12840] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12841] <... futex resumed>)        = 0
[pid 12841] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12841] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12841] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12840] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12840] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12841] <... futex resumed>)        = 0
[pid 12841] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12841] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12841] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12840] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12840] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12841] <... futex resumed>)        = 0
[pid 12840] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12841] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12841] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12841] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12840] <... futex resumed>)        = 0
[pid 12840] exit_group(0)               = ?
[pid 12841] <... futex resumed>)        = ?
[pid 12841] +++ exited with 0 +++
[pid 12840] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12840, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12842
./strace-static-x86_64: Process 12842 attached
[pid 12842] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12842] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12842] setpgid(0, 0)               = 0
[pid 12842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12842] write(3, "1000", 4)         = 4
[pid 12842] close(3)                    = 0
[pid 12842] write(1, "executing program\n", 18) = 18
[pid 12842] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000executing program
) = 0
[pid 12842] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12842] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12842] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12842] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12842] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12842] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12843 attached
 <unfinished ...>
[pid 12843] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12842] <... clone3 resumed> => {parent_tid=[12843]}, 88) = 12843
[pid 12843] <... set_robust_list resumed>) = 0
[pid 12842] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12843] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12842] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12842] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12843] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12842] <... futex resumed>)        = 0
[pid 12843] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12842] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12843] <... 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 12843] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12842] <... futex resumed>)        = 0
[pid 12842] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12842] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12843] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12843] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12842] <... futex resumed>)        = 0
[pid 12842] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12842] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12843] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12843] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12842] <... futex resumed>)        = 0
[pid 12842] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12842] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12843] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12843] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12842] <... futex resumed>)        = 0
[pid 12842] exit_group(0)               = ?
[pid 12843] +++ exited with 0 +++
[pid 12842] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12842, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12844
./strace-static-x86_64: Process 12844 attached
[pid 12844] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12844] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12844] setpgid(0, 0)               = 0
[pid 12844] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12844] write(3, "1000", 4)         = 4
[pid 12844] close(3)                    = 0
[pid 12844] write(1, "executing program\n", 18executing program
) = 18
[pid 12844] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12844] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12844] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12844] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12844] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12844] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12844] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12845 attached
 => {parent_tid=[12845]}, 88) = 12845
[pid 12845] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12845] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12845] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12844] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12844] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12845] <... futex resumed>)        = 0
[pid 12845] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12844] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12845] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12845] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12844] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12844] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12845] <... futex resumed>)        = 0
[pid 12845] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12844] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12845] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12845] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12844] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12844] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12845] <... futex resumed>)        = 0
[pid 12845] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12845] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12845] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12844] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12844] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12845] <... futex resumed>)        = 0
[pid 12845] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12845] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12845] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12844] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12844] exit_group(0)               = ?
[pid 12845] <... futex resumed>)        = ?
[pid 12845] +++ exited with 0 +++
[pid 12844] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12844, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12846
./strace-static-x86_64: Process 12846 attached
[pid 12846] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12846] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12846] setpgid(0, 0)               = 0
[pid 12846] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12846] write(3, "1000", 4)         = 4
[pid 12846] close(3executing program
)                    = 0
[pid 12846] write(1, "executing program\n", 18) = 18
[pid 12846] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12846] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12846] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12846] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12846] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12846] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12846] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12847 attached
 => {parent_tid=[12847]}, 88) = 12847
[pid 12846] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12846] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12846] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12847] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12847] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12847] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12847] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12846] <... futex resumed>)        = 0
[pid 12846] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12846] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12847] <... futex resumed>)        = 1
[pid 12847] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12847] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12846] <... futex resumed>)        = 0
[pid 12846] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12846] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12847] <... futex resumed>)        = 1
[pid 12847] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12847] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12846] <... futex resumed>)        = 0
[pid 12846] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12846] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12847] <... futex resumed>)        = 1
[pid 12847] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12847] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12846] <... futex resumed>)        = 0
[pid 12846] exit_group(0)               = ?
[pid 12847] <... futex resumed>)        = ?
[pid 12847] +++ exited with 0 +++
[pid 12846] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12846, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12848
./strace-static-x86_64: Process 12848 attached
[pid 12848] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12848] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12848] setpgid(0, 0)               = 0
[pid 12848] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12848] write(3, "1000", 4)         = 4
[pid 12848] close(3)                    = 0
executing program
[pid 12848] write(1, "executing program\n", 18) = 18
[pid 12848] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12848] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12848] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12848] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12848] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12848] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12848] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12849]}, 88) = 12849
[pid 12848] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12848] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12848] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12849 attached
 <unfinished ...>
[pid 12849] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12849] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12849] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12849] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12848] <... futex resumed>)        = 0
[pid 12848] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12848] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12849] <... futex resumed>)        = 1
[pid 12849] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12849] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12848] <... futex resumed>)        = 0
[pid 12848] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12848] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12849] <... futex resumed>)        = 1
[pid 12849] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12849] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12848] <... futex resumed>)        = 0
[pid 12848] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12848] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12849] <... futex resumed>)        = 1
[pid 12849] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12849] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12848] <... futex resumed>)        = 0
[pid 12848] exit_group(0)               = ?
[pid 12849] <... futex resumed>)        = ?
[pid 12849] +++ exited with 0 +++
[pid 12848] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12848, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12850
./strace-static-x86_64: Process 12850 attached
[pid 12850] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12850] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12850] setpgid(0, 0)               = 0
[pid 12850] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12850] write(3, "1000", 4)         = 4
[pid 12850] close(3executing program
)                    = 0
[pid 12850] write(1, "executing program\n", 18) = 18
[pid 12850] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12850] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12850] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12850] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12850] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12850] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12850] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12851]}, 88) = 12851
[pid 12850] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12850] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12850] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12851 attached
 <unfinished ...>
[pid 12851] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12851] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12851] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12851] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12850] <... futex resumed>)        = 0
[pid 12850] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12850] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12851] <... futex resumed>)        = 1
[pid 12851] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12851] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12850] <... futex resumed>)        = 0
[pid 12850] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12850] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12851] <... futex resumed>)        = 1
[pid 12851] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12851] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12850] <... futex resumed>)        = 0
[pid 12850] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12850] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12851] <... futex resumed>)        = 1
[pid 12851] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12851] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12850] <... futex resumed>)        = 0
[pid 12850] exit_group(0)               = ?
[pid 12851] <... futex resumed>)        = ?
[pid 12851] +++ exited with 0 +++
[pid 12850] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12850, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12852
./strace-static-x86_64: Process 12852 attached
[pid 12852] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12852] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12852] setpgid(0, 0)               = 0
[pid 12852] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12852] write(3, "1000", 4)         = 4
[pid 12852] close(3)                    = 0
[pid 12852] write(1, "executing program\n", 18executing program
) = 18
[pid 12852] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12852] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12852] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12852] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12852] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12852] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12852] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12853 attached
 => {parent_tid=[12853]}, 88) = 12853
[pid 12853] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12853] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12853] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12852] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12852] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12853] <... futex resumed>)        = 0
[pid 12853] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12852] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12853] <... 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 12853] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12853] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12852] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12852] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12853] <... futex resumed>)        = 0
[pid 12853] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12853] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12853] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12852] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12852] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12853] <... futex resumed>)        = 0
[pid 12853] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12852] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12853] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12853] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12853] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12852] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12852] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12853] <... futex resumed>)        = 0
[pid 12852] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12853] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12853] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12852] <... futex resumed>)        = 0
[pid 12852] exit_group(0)               = ?
[pid 12853] +++ exited with 0 +++
[pid 12852] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12852, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12854
./strace-static-x86_64: Process 12854 attached
[pid 12854] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12854] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12854] setpgid(0, 0)               = 0
[pid 12854] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12854] write(3, "1000", 4)         = 4
[pid 12854] close(3)                    = 0
executing program
[pid 12854] write(1, "executing program\n", 18) = 18
[pid 12854] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12854] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12854] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12854] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12854] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12854] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12854] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12855 attached
 => {parent_tid=[12855]}, 88) = 12855
[pid 12855] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12854] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12855] <... set_robust_list resumed>) = 0
[pid 12854] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12855] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12854] <... futex resumed>)        = 0
[pid 12855] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12854] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12855] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12855] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12854] <... futex resumed>)        = 0
[pid 12854] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12854] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12855] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12855] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12854] <... futex resumed>)        = 0
[pid 12854] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12854] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12855] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12855] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12854] <... futex resumed>)        = 0
[pid 12854] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12854] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12855] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12855] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12854] <... futex resumed>)        = 0
[pid 12854] exit_group(0)               = ?
[pid 12855] +++ exited with 0 +++
[pid 12854] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12854, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12856
./strace-static-x86_64: Process 12856 attached
[pid 12856] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12856] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12856] setpgid(0, 0)               = 0
[pid 12856] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12856] write(3, "1000", 4executing program
)         = 4
[pid 12856] close(3)                    = 0
[pid 12856] write(1, "executing program\n", 18) = 18
[pid 12856] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12856] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12856] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12856] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12856] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12856] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12856] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12857]}, 88) = 12857
[pid 12856] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12856] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12856] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12857 attached
 <unfinished ...>
[pid 12857] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12857] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12857] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12857] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12856] <... futex resumed>)        = 0
[pid 12856] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12856] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12857] <... futex resumed>)        = 1
[pid 12857] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12857] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12856] <... futex resumed>)        = 0
[pid 12856] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12856] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12857] <... futex resumed>)        = 1
[pid 12857] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12857] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12856] <... futex resumed>)        = 0
[pid 12856] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12856] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12857] <... futex resumed>)        = 1
[pid 12857] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12857] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12856] <... futex resumed>)        = 0
[pid 12856] exit_group(0)               = ?
[pid 12857] <... futex resumed>)        = ?
[pid 12857] +++ exited with 0 +++
[pid 12856] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12856, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12858
./strace-static-x86_64: Process 12858 attached
[pid 12858] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12858] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12858] setpgid(0, 0)               = 0
[pid 12858] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12858] write(3, "1000", 4)         = 4
[pid 12858] close(3)                    = 0
[pid 12858] write(1, "executing program\n", 18executing program
) = 18
[pid 12858] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12858] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12858] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12858] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12858] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12858] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12858] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12859 attached
 => {parent_tid=[12859]}, 88) = 12859
[pid 12859] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12859] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12859] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12858] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12858] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12859] <... futex resumed>)        = 0
[pid 12859] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12859] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12859] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12858] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12858] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12859] <... futex resumed>)        = 0
[pid 12859] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12859] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12859] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12858] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12858] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12859] <... futex resumed>)        = 0
[pid 12859] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12859] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12859] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12858] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12858] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12859] <... futex resumed>)        = 0
[pid 12859] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12859] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12859] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12858] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12858] exit_group(0)               = ?
[pid 12859] <... futex resumed>)        = ?
[pid 12859] +++ exited with 0 +++
[pid 12858] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12858, si_uid=0, si_status=0, 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 12860 attached
, child_tidptr=0x55558842d690) = 12860
[pid 12860] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12860] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12860] setpgid(0, 0)               = 0
[pid 12860] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12860] write(3, "1000", 4executing program
)         = 4
[pid 12860] close(3)                    = 0
[pid 12860] write(1, "executing program\n", 18) = 18
[pid 12860] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12860] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12860] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12860] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12860] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12860] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12860] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12861 attached
 => {parent_tid=[12861]}, 88) = 12861
[pid 12861] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12861] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12861] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12860] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12860] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12861] <... futex resumed>)        = 0
[pid 12861] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12861] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12861] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12860] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12860] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12861] <... futex resumed>)        = 0
[pid 12861] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12861] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12861] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12860] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12860] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12861] <... futex resumed>)        = 0
[pid 12861] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12861] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12861] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12860] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12860] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12861] <... futex resumed>)        = 0
[pid 12861] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12861] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12861] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12860] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12860] exit_group(0)               = ?
[pid 12861] <... futex resumed>)        = ?
[pid 12861] +++ exited with 0 +++
[pid 12860] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12860, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12862
./strace-static-x86_64: Process 12862 attached
[pid 12862] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12862] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12862] setpgid(0, 0)               = 0
[pid 12862] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12862] write(3, "1000", 4)         = 4
[pid 12862] close(3executing program
)                    = 0
[pid 12862] write(1, "executing program\n", 18) = 18
[pid 12862] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12862] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12862] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12862] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12862] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12862] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12862] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12863]}, 88) = 12863
[pid 12862] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12862] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12862] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12863 attached
 <unfinished ...>
[pid 12863] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12863] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12863] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12863] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12862] <... futex resumed>)        = 0
[pid 12862] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12862] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12863] <... futex resumed>)        = 1
[pid 12863] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12863] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12862] <... futex resumed>)        = 0
[pid 12862] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12862] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12863] <... futex resumed>)        = 1
[pid 12863] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12863] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12862] <... futex resumed>)        = 0
[pid 12862] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12862] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12863] <... futex resumed>)        = 1
[pid 12863] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12863] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12862] <... futex resumed>)        = 0
[pid 12862] exit_group(0)               = ?
[pid 12863] <... futex resumed>)        = ?
[pid 12863] +++ exited with 0 +++
[pid 12862] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12862, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12864
./strace-static-x86_64: Process 12864 attached
[pid 12864] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12864] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12864] setpgid(0, 0)               = 0
[pid 12864] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12864] write(3, "1000", 4executing program
)         = 4
[pid 12864] close(3)                    = 0
[pid 12864] write(1, "executing program\n", 18) = 18
[pid 12864] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12864] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12864] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12864] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12864] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12864] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12864] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12865 attached
 => {parent_tid=[12865]}, 88) = 12865
[pid 12865] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12864] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12865] <... set_robust_list resumed>) = 0
[pid 12865] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12865] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12864] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12864] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12865] <... futex resumed>)        = 0
[pid 12865] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12864] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12865] <... 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 12865] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12864] <... futex resumed>)        = 0
[pid 12864] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12864] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12865] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12865] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12864] <... futex resumed>)        = 0
[pid 12864] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12864] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12865] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12865] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12864] <... futex resumed>)        = 0
[pid 12864] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12864] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12865] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12865] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12864] <... futex resumed>)        = 0
[pid 12864] exit_group(0)               = ?
[pid 12865] +++ exited with 0 +++
[pid 12864] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12864, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12866
./strace-static-x86_64: Process 12866 attached
[pid 12866] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12866] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12866] setpgid(0, 0)               = 0
[pid 12866] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12866] write(3, "1000", 4)         = 4
[pid 12866] close(3)                    = 0
[pid 12866] write(1, "executing program\n", 18executing program
) = 18
[pid 12866] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12866] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12866] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12866] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12866] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12866] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12866] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12867]}, 88) = 12867
./strace-static-x86_64: Process 12867 attached
[pid 12867] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12867] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12867] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12866] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12866] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12867] <... futex resumed>)        = 0
[pid 12866] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12867] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12867] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12867] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12866] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12866] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12867] <... futex resumed>)        = 0
[pid 12867] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12867] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12867] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12866] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12866] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12867] <... futex resumed>)        = 0
[pid 12867] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12866] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12867] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12867] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12867] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12866] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12866] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12867] <... futex resumed>)        = 0
[pid 12867] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12866] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12867] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12867] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12867] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12866] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12866] exit_group(0)               = ?
[pid 12867] <... futex resumed>)        = ?
[pid 12867] +++ exited with 0 +++
[pid 12866] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12866, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12868
./strace-static-x86_64: Process 12868 attached
[pid 12868] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12868] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12868] setpgid(0, 0)               = 0
[pid 12868] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12868] write(3, "1000", 4)         = 4
[pid 12868] close(3executing program
)                    = 0
[pid 12868] write(1, "executing program\n", 18) = 18
[pid 12868] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12868] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12868] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12868] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12868] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12868] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12868] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12869 attached
 => {parent_tid=[12869]}, 88) = 12869
[pid 12869] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12868] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12869] <... set_robust_list resumed>) = 0
[pid 12868] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12869] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12868] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12869] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12868] <... futex resumed>)        = 0
[pid 12868] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12869] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12869] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12868] <... futex resumed>)        = 0
[pid 12868] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12868] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12869] <... futex resumed>)        = 1
[pid 12869] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12869] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12868] <... futex resumed>)        = 0
[pid 12868] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12868] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12869] <... futex resumed>)        = 1
[pid 12869] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12869] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12868] <... futex resumed>)        = 0
[pid 12868] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12868] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12869] <... futex resumed>)        = 1
[pid 12869] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12869] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12868] <... futex resumed>)        = 0
[pid 12868] exit_group(0)               = ?
[pid 12869] <... futex resumed>)        = ?
[pid 12869] +++ exited with 0 +++
[pid 12868] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12868, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12870
./strace-static-x86_64: Process 12870 attached
[pid 12870] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12870] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12870] setpgid(0, 0)               = 0
[pid 12870] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12870] write(3, "1000", 4)         = 4
[pid 12870] close(3)                    = 0
[pid 12870] write(1, "executing program\n", 18executing program
) = 18
[pid 12870] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12870] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12870] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12870] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12870] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12870] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12870] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12871 attached
 => {parent_tid=[12871]}, 88) = 12871
[pid 12871] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12871] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12871] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12870] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12870] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12871] <... futex resumed>)        = 0
[pid 12871] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12870] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12871] <... 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 12871] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12871] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12870] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12870] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12871] <... futex resumed>)        = 0
[pid 12871] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12871] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12871] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12870] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12870] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12871] <... futex resumed>)        = 0
[pid 12871] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12871] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12871] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12870] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12870] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12871] <... futex resumed>)        = 0
[pid 12870] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12871] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12871] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12871] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12870] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12870] exit_group(0)               = ?
[pid 12871] <... futex resumed>)        = ?
[pid 12871] +++ exited with 0 +++
[pid 12870] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12870, si_uid=0, si_status=0, 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 12872 attached
, child_tidptr=0x55558842d690) = 12872
[pid 12872] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12872] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12872] setpgid(0, 0)               = 0
[pid 12872] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12872] write(3, "1000", 4)         = 4
[pid 12872] close(3)                    = 0
[pid 12872] write(1, "executing program\n", 18executing program
) = 18
[pid 12872] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12872] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12872] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12872] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12872] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12872] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12872] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12873 attached
 => {parent_tid=[12873]}, 88) = 12873
[pid 12873] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12873] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12873] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12872] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12872] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12873] <... futex resumed>)        = 0
[pid 12873] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12872] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12873] <... 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 12873] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12872] <... futex resumed>)        = 0
[pid 12872] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12872] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12873] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12873] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12873] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12872] <... futex resumed>)        = 0
[pid 12872] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12872] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12873] <... futex resumed>)        = 0
[pid 12873] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12873] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12872] <... futex resumed>)        = 0
[pid 12872] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12872] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12873] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12873] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12872] <... futex resumed>)        = 0
[pid 12873] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12872] exit_group(0)               = ?
[pid 12873] <... futex resumed>)        = ?
[pid 12873] +++ exited with 0 +++
[pid 12872] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12872, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12874
./strace-static-x86_64: Process 12874 attached
[pid 12874] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12874] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12874] setpgid(0, 0)               = 0
[pid 12874] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12874] write(3, "1000", 4)         = 4
[pid 12874] close(3)                    = 0
[pid 12874] write(1, "executing program\n", 18executing program
) = 18
[pid 12874] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12874] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12874] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12874] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12874] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12874] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12874] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12875 attached
 => {parent_tid=[12875]}, 88) = 12875
[pid 12875] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12875] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12875] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12874] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12874] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12875] <... futex resumed>)        = 0
[pid 12875] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12875] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12875] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12874] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12874] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12875] <... futex resumed>)        = 0
[pid 12875] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12875] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12875] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12874] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12874] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12875] <... futex resumed>)        = 0
[pid 12875] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12875] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12875] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12874] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12874] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12875] <... futex resumed>)        = 0
[pid 12875] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12874] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12875] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12875] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12875] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12874] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12874] exit_group(0)               = ?
[pid 12875] <... futex resumed>)        = ?
[pid 12875] +++ exited with 0 +++
[pid 12874] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12874, si_uid=0, si_status=0, 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 12876 attached
, child_tidptr=0x55558842d690) = 12876
[pid 12876] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12876] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12876] setpgid(0, 0)               = 0
[pid 12876] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12876] write(3, "1000", 4)         = 4
[pid 12876] close(3)                    = 0
[pid 12876] write(1, "executing program\n", 18executing program
) = 18
[pid 12876] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12876] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12876] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12876] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12876] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12876] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12876] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12877 attached
 <unfinished ...>
[pid 12877] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12877] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12877] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12876] <... clone3 resumed> => {parent_tid=[12877]}, 88) = 12877
[pid 12876] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12876] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12877] <... futex resumed>)        = 0
[pid 12877] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12877] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12877] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12876] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12876] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12877] <... futex resumed>)        = 0
[pid 12877] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12877] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12877] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12876] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12876] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12877] <... futex resumed>)        = 0
[pid 12877] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12877] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12877] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12876] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12876] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12877] <... futex resumed>)        = 0
[pid 12876] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12877] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12877] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12877] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12876] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12876] exit_group(0)               = ?
[pid 12877] <... futex resumed>)        = ?
[pid 12877] +++ exited with 0 +++
[pid 12876] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12876, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12878
./strace-static-x86_64: Process 12878 attached
[pid 12878] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12878] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12878] setpgid(0, 0)               = 0
[pid 12878] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12878] write(3, "1000", 4)         = 4
[pid 12878] close(3)                    = 0
executing program
[pid 12878] write(1, "executing program\n", 18) = 18
[pid 12878] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12878] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12878] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12878] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12878] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12878] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12878] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12879]}, 88) = 12879
./strace-static-x86_64: Process 12879 attached
[pid 12878] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12879] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12878] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12879] <... set_robust_list resumed>) = 0
[pid 12878] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12879] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12878] <... futex resumed>)        = 0
[pid 12879] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12878] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12879] <... 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 12879] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12878] <... futex resumed>)        = 0
[pid 12878] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12878] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12879] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12879] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12878] <... futex resumed>)        = 0
[pid 12878] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12878] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12879] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12879] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12878] <... futex resumed>)        = 0
[pid 12878] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12878] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12879] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12879] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12878] <... futex resumed>)        = 0
[pid 12878] exit_group(0)               = ?
[pid 12879] +++ exited with 0 +++
[pid 12878] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12878, si_uid=0, si_status=0, 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 12880 attached
 <unfinished ...>
[pid 12880] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12880] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   555] <... clone resumed>, child_tidptr=0x55558842d690) = 12880
[pid 12880] setpgid(0, 0)               = 0
[pid 12880] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12880] write(3, "1000", 4)         = 4
[pid 12880] close(3)                    = 0
executing program
[pid 12880] write(1, "executing program\n", 18) = 18
[pid 12880] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12880] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12880] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12880] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12880] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12880] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12880] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12881]}, 88) = 12881
[pid 12880] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12880] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12880] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12881 attached
 <unfinished ...>
[pid 12881] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12881] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12881] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12881] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12880] <... futex resumed>)        = 0
[pid 12880] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12880] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12881] <... futex resumed>)        = 1
[pid 12881] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12881] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12880] <... futex resumed>)        = 0
[pid 12880] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12880] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12881] <... futex resumed>)        = 1
[pid 12881] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12881] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12880] <... futex resumed>)        = 0
[pid 12880] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12880] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12881] <... futex resumed>)        = 1
[pid 12881] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12881] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12880] <... futex resumed>)        = 0
[pid 12880] exit_group(0)               = ?
[pid 12881] <... futex resumed>)        = ?
[pid 12881] +++ exited with 0 +++
[pid 12880] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12880, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12882
./strace-static-x86_64: Process 12882 attached
[pid 12882] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12882] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12882] setpgid(0, 0)               = 0
[pid 12882] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12882] write(3, "1000", 4)         = 4
[pid 12882] close(3)                    = 0
[pid 12882] write(1, "executing program\n", 18executing program
) = 18
[pid 12882] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12882] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12882] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12882] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12882] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12882] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12882] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12883 attached
 => {parent_tid=[12883]}, 88) = 12883
[pid 12883] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12883] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12883] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12882] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12882] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12883] <... futex resumed>)        = 0
[pid 12883] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12883] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12883] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12882] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12882] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12883] <... futex resumed>)        = 0
[pid 12883] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12883] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12883] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12882] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12882] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12883] <... futex resumed>)        = 0
[pid 12883] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12883] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12883] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12882] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12882] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12883] <... futex resumed>)        = 0
[pid 12883] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12882] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12883] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12883] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12883] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12882] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12882] exit_group(0)               = ?
[pid 12883] <... futex resumed>)        = ?
[pid 12883] +++ exited with 0 +++
[pid 12882] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12882, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12884
./strace-static-x86_64: Process 12884 attached
[pid 12884] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12884] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12884] setpgid(0, 0)               = 0
[pid 12884] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12884] write(3, "1000", 4)         = 4
[pid 12884] close(3)                    = 0
[pid 12884] write(1, "executing program\n", 18executing program
) = 18
[pid 12884] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12884] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12884] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12884] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12884] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12884] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12884] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12885 attached
 => {parent_tid=[12885]}, 88) = 12885
[pid 12884] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12884] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12884] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12885] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12885] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12885] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12885] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12884] <... futex resumed>)        = 0
[pid 12884] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12884] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12885] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12885] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12884] <... futex resumed>)        = 0
[pid 12884] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12884] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12885] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12885] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12884] <... futex resumed>)        = 0
[pid 12884] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12884] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12885] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12885] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12884] <... futex resumed>)        = 0
[pid 12884] exit_group(0)               = ?
[pid 12885] +++ exited with 0 +++
[pid 12884] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12884, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12886
./strace-static-x86_64: Process 12886 attached
[pid 12886] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12886] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12886] setpgid(0, 0)               = 0
[pid 12886] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12886] write(3, "1000", 4)         = 4
executing program
[pid 12886] close(3)                    = 0
[pid 12886] write(1, "executing program\n", 18) = 18
[pid 12886] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12886] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12886] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12886] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12886] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12886] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12886] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12887]}, 88) = 12887
[pid 12886] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12886] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12886] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12887 attached
 <unfinished ...>
[pid 12887] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12887] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12887] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12887] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12887] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12886] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12886] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12887] <... futex resumed>)        = 0
[pid 12887] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12886] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12887] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12886] <... futex resumed>)        = 0
[pid 12886] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12886] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12887] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12887] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12886] <... futex resumed>)        = 0
[pid 12886] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12886] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12887] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12887] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12886] <... futex resumed>)        = 0
[pid 12886] exit_group(0)               = ?
[pid 12887] +++ exited with 0 +++
[pid 12886] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12886, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12888
./strace-static-x86_64: Process 12888 attached
[pid 12888] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12888] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12888] setpgid(0, 0)               = 0
[pid 12888] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12888] write(3, "1000", 4)         = 4
[pid 12888] close(3)                    = 0
[pid 12888] write(1, "executing program\n", 18executing program
) = 18
[pid 12888] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12888] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12888] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12888] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12888] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12888] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12888] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12889 attached
 <unfinished ...>
[pid 12889] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12889] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12889] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12888] <... clone3 resumed> => {parent_tid=[12889]}, 88) = 12889
[pid 12888] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12888] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12889] <... futex resumed>)        = 0
[pid 12889] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12889] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12889] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12888] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12888] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12889] <... futex resumed>)        = 0
[pid 12889] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12889] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12889] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12888] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12888] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12889] <... futex resumed>)        = 0
[pid 12889] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12889] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12889] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12888] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12888] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12889] <... futex resumed>)        = 0
[pid 12889] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12889] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12889] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12888] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12888] exit_group(0)               = ?
[pid 12889] <... futex resumed>)        = ?
[pid 12889] +++ exited with 0 +++
[pid 12888] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12888, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12890
./strace-static-x86_64: Process 12890 attached
[pid 12890] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12890] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12890] setpgid(0, 0)               = 0
[pid 12890] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12890] write(3, "1000", 4)         = 4
[pid 12890] close(3executing program
)                    = 0
[pid 12890] write(1, "executing program\n", 18) = 18
[pid 12890] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12890] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12890] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12890] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12890] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12890] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12890] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12891]}, 88) = 12891
[pid 12890] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12890] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12890] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12891 attached
 <unfinished ...>
[pid 12891] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12891] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12891] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12891] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12890] <... futex resumed>)        = 0
[pid 12890] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12890] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12891] <... futex resumed>)        = 1
[pid 12891] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12891] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12890] <... futex resumed>)        = 0
[pid 12890] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12890] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12891] <... futex resumed>)        = 1
[pid 12891] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12891] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12890] <... futex resumed>)        = 0
[pid 12890] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12890] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12891] <... futex resumed>)        = 1
[pid 12891] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12891] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12890] <... futex resumed>)        = 0
[pid 12890] exit_group(0)               = ?
[pid 12891] <... futex resumed>)        = ?
[pid 12891] +++ exited with 0 +++
[pid 12890] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12890, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12892
./strace-static-x86_64: Process 12892 attached
[pid 12892] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12892] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12892] setpgid(0, 0)               = 0
[pid 12892] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12892] write(3, "1000", 4)         = 4
[pid 12892] close(3executing program
)                    = 0
[pid 12892] write(1, "executing program\n", 18) = 18
[pid 12892] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12892] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12892] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12892] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12892] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12892] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12892] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12893]}, 88) = 12893
[pid 12892] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12892] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12892] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12893 attached
 <unfinished ...>
[pid 12893] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12893] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12893] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12893] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12892] <... futex resumed>)        = 0
[pid 12892] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12892] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12893] <... futex resumed>)        = 1
[pid 12893] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12893] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12892] <... futex resumed>)        = 0
[pid 12892] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12892] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12893] <... futex resumed>)        = 1
[pid 12893] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12893] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12892] <... futex resumed>)        = 0
[pid 12892] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12892] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12893] <... futex resumed>)        = 1
[pid 12893] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12893] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12892] <... futex resumed>)        = 0
[pid 12892] exit_group(0)               = ?
[pid 12893] <... futex resumed>)        = ?
[pid 12893] +++ exited with 0 +++
[pid 12892] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12892, si_uid=0, si_status=0, 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 12894 attached
, child_tidptr=0x55558842d690) = 12894
[pid 12894] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12894] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12894] setpgid(0, 0)               = 0
[pid 12894] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12894] write(3, "1000", 4)         = 4
[pid 12894] close(3executing program
)                    = 0
[pid 12894] write(1, "executing program\n", 18) = 18
[pid 12894] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12894] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12894] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12894] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12894] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12894] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12894] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12895 attached
 => {parent_tid=[12895]}, 88) = 12895
[pid 12895] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12894] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12895] <... set_robust_list resumed>) = 0
[pid 12894] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12895] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12894] <... futex resumed>)        = 0
[pid 12895] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12895] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12894] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12895] <... 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 12895] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12894] <... futex resumed>)        = 0
[pid 12894] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12894] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12895] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12895] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12894] <... futex resumed>)        = 0
[pid 12894] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12894] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12895] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12895] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12894] <... futex resumed>)        = 0
[pid 12894] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12894] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12895] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12895] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12894] <... futex resumed>)        = 0
[pid 12894] exit_group(0)               = ?
[pid 12895] +++ exited with 0 +++
[pid 12894] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12894, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12896
./strace-static-x86_64: Process 12896 attached
[pid 12896] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12896] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12896] setpgid(0, 0)               = 0
[pid 12896] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12896] write(3, "1000", 4executing program
)         = 4
[pid 12896] close(3)                    = 0
[pid 12896] write(1, "executing program\n", 18) = 18
[pid 12896] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12896] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12896] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12896] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12896] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12896] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12896] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12897]}, 88) = 12897
[pid 12896] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12896] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12896] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12897 attached
 <unfinished ...>
[pid 12897] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12897] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12897] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12897] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12896] <... futex resumed>)        = 0
[pid 12896] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12896] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12897] <... futex resumed>)        = 1
[pid 12897] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12897] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12896] <... futex resumed>)        = 0
[pid 12896] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12896] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12897] <... futex resumed>)        = 1
[pid 12897] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12897] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12896] <... futex resumed>)        = 0
[pid 12896] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12896] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12897] <... futex resumed>)        = 1
[pid 12897] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12897] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12896] <... futex resumed>)        = 0
[pid 12896] exit_group(0)               = ?
[pid 12897] <... futex resumed>)        = ?
[pid 12897] +++ exited with 0 +++
[pid 12896] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12896, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12898
./strace-static-x86_64: Process 12898 attached
[pid 12898] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12898] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12898] setpgid(0, 0)               = 0
[pid 12898] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12898] write(3, "1000", 4)         = 4
[pid 12898] close(3)                    = 0
[pid 12898] write(1, "executing program\n", 18executing program
) = 18
[pid 12898] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12898] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12898] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12898] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12898] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12898] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12898] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12899 attached
 => {parent_tid=[12899]}, 88) = 12899
[pid 12899] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12898] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12898] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12898] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12899] <... set_robust_list resumed>) = 0
[pid 12899] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12899] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12899] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12898] <... futex resumed>)        = 0
[pid 12898] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12898] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12899] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12899] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12898] <... futex resumed>)        = 0
[pid 12898] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12898] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12899] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12899] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12898] <... futex resumed>)        = 0
[pid 12898] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12898] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12899] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12899] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12898] <... futex resumed>)        = 0
[pid 12898] exit_group(0 <unfinished ...>
[pid 12899] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL) = ?
[pid 12898] <... exit_group resumed>)   = ?
[pid 12899] +++ exited with 0 +++
[pid 12898] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12898, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12900
./strace-static-x86_64: Process 12900 attached
[pid 12900] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12900] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12900] setpgid(0, 0)               = 0
[pid 12900] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12900] write(3, "1000", 4)         = 4
[pid 12900] close(3)                    = 0
[pid 12900] write(1, "executing program\n", 18executing program
) = 18
[pid 12900] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12900] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12900] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12900] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12900] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12900] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12900] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12901 attached
 => {parent_tid=[12901]}, 88) = 12901
[pid 12901] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12900] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12901] <... set_robust_list resumed>) = 0
[pid 12900] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12901] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12900] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12901] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12900] <... futex resumed>)        = 0
[pid 12900] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12901] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12901] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12900] <... futex resumed>)        = 0
[pid 12901] <... futex resumed>)        = 1
[pid 12900] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12901] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12900] <... futex resumed>)        = 0
[pid 12901] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12900] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12901] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12900] <... futex resumed>)        = 0
[pid 12900] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12901] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12900] <... futex resumed>)        = 0
[pid 12900] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12901] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12901] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12900] <... futex resumed>)        = 0
[pid 12900] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12900] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12901] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12901] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12900] <... futex resumed>)        = 0
[pid 12900] exit_group(0)               = ?
[pid 12901] +++ exited with 0 +++
[pid 12900] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12900, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12902
./strace-static-x86_64: Process 12902 attached
[pid 12902] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12902] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12902] setpgid(0, 0)               = 0
[pid 12902] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12902] write(3, "1000", 4)         = 4
[pid 12902] close(3)                    = 0
[pid 12902] write(1, "executing program\n", 18executing program
) = 18
[pid 12902] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12902] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12902] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12902] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12902] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12902] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12902] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12903 attached
 => {parent_tid=[12903]}, 88) = 12903
[pid 12903] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12903] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12903] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12902] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12902] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12903] <... futex resumed>)        = 0
[pid 12903] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12903] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12903] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12902] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12902] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12903] <... futex resumed>)        = 0
[pid 12903] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12903] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12903] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12902] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12902] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12903] <... futex resumed>)        = 0
[pid 12903] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12903] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12903] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12902] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12902] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12903] <... futex resumed>)        = 0
[pid 12903] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12902] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12903] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12903] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12903] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12902] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12902] exit_group(0)               = ?
[pid 12903] <... futex resumed>)        = ?
[pid 12903] +++ exited with 0 +++
[pid 12902] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12902, si_uid=0, si_status=0, 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 12904 attached
, child_tidptr=0x55558842d690) = 12904
[pid 12904] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12904] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12904] setpgid(0, 0)               = 0
[pid 12904] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12904] write(3, "1000", 4)         = 4
[pid 12904] close(3)                    = 0
executing program
[pid 12904] write(1, "executing program\n", 18) = 18
[pid 12904] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12904] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12904] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12904] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12904] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12904] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12904] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12905]}, 88) = 12905
[pid 12904] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12904] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12904] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12905 attached
 <unfinished ...>
[pid 12905] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12905] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12905] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12905] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12904] <... futex resumed>)        = 0
[pid 12904] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12904] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12905] <... futex resumed>)        = 1
[pid 12905] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12905] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12904] <... futex resumed>)        = 0
[pid 12904] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12904] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12905] <... futex resumed>)        = 1
[pid 12905] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12905] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12904] <... futex resumed>)        = 0
[pid 12904] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12904] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12905] <... futex resumed>)        = 1
[pid 12905] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12905] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12904] <... futex resumed>)        = 0
[pid 12904] exit_group(0)               = ?
[pid 12905] <... futex resumed>)        = ?
[pid 12905] +++ exited with 0 +++
[pid 12904] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12904, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12906
./strace-static-x86_64: Process 12906 attached
[pid 12906] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12906] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12906] setpgid(0, 0)               = 0
[pid 12906] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12906] write(3, "1000", 4executing program
)         = 4
[pid 12906] close(3)                    = 0
[pid 12906] write(1, "executing program\n", 18) = 18
[pid 12906] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12906] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12906] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12906] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12906] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12906] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12906] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12907 attached
 => {parent_tid=[12907]}, 88) = 12907
[pid 12907] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12906] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12907] <... set_robust_list resumed>) = 0
[pid 12907] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12906] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12906] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12907] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12906] <... futex resumed>)        = 0
[pid 12907] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12906] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12907] <... 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 12907] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12907] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12906] <... futex resumed>)        = 0
[pid 12906] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12907] <... futex resumed>)        = 0
[pid 12907] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12907] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12907] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12906] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12906] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12907] <... futex resumed>)        = 0
[pid 12907] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12907] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12907] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12906] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12906] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12907] <... futex resumed>)        = 0
[pid 12907] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12907] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12907] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12906] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12906] exit_group(0)               = ?
[pid 12907] <... futex resumed>)        = ?
[pid 12907] +++ exited with 0 +++
[pid 12906] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12906, si_uid=0, si_status=0, 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 12908 attached
, child_tidptr=0x55558842d690) = 12908
[pid 12908] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12908] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12908] setpgid(0, 0)               = 0
[pid 12908] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12908] write(3, "1000", 4)         = 4
[pid 12908] close(3)                    = 0
executing program
[pid 12908] write(1, "executing program\n", 18) = 18
[pid 12908] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12908] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12908] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12908] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12908] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12908] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12908] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12909 attached
 => {parent_tid=[12909]}, 88) = 12909
[pid 12909] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12909] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12909] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12908] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12908] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12909] <... futex resumed>)        = 0
[pid 12909] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12909] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12909] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12908] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12908] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12909] <... futex resumed>)        = 0
[pid 12909] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12909] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12909] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12908] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12908] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12909] <... futex resumed>)        = 0
[pid 12909] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12909] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12909] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12908] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12908] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12909] <... futex resumed>)        = 0
[pid 12908] <... futex resumed>)        = 1
[pid 12909] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12909] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12909] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12908] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12908] exit_group(0)               = ?
[pid 12909] <... futex resumed>)        = ?
[pid 12909] +++ exited with 0 +++
[pid 12908] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12908, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12910
./strace-static-x86_64: Process 12910 attached
[pid 12910] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12910] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12910] setpgid(0, 0)               = 0
[pid 12910] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12910] write(3, "1000", 4)         = 4
[pid 12910] close(3)                    = 0
[pid 12910] write(1, "executing program\n", 18executing program
) = 18
[pid 12910] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12910] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12910] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12910] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12910] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12910] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12910] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12911 attached
 => {parent_tid=[12911]}, 88) = 12911
[pid 12911] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12910] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12911] <... set_robust_list resumed>) = 0
[pid 12910] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12911] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12910] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12911] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12910] <... futex resumed>)        = 0
[pid 12910] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12911] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12911] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12910] <... futex resumed>)        = 0
[pid 12911] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12910] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12911] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12910] <... futex resumed>)        = 0
[pid 12911] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12910] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12911] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12911] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12910] <... futex resumed>)        = 0
[pid 12910] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12910] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12911] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12911] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12910] <... futex resumed>)        = 0
[pid 12910] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12910] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12911] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12911] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12910] <... futex resumed>)        = 0
[pid 12911] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12910] exit_group(0)               = ?
[pid 12911] <... futex resumed>)        = ?
[pid 12911] +++ exited with 0 +++
[pid 12910] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12910, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12912
./strace-static-x86_64: Process 12912 attached
[pid 12912] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12912] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12912] setpgid(0, 0)               = 0
[pid 12912] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12912] write(3, "1000", 4)         = 4
[pid 12912] close(3)                    = 0
[pid 12912] write(1, "executing program\n", 18executing program
) = 18
[pid 12912] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12912] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12912] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12912] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12912] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12912] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12912] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12913 attached
 => {parent_tid=[12913]}, 88) = 12913
[pid 12912] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12912] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12912] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12913] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12913] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12913] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12913] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12912] <... futex resumed>)        = 0
[pid 12912] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12912] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12913] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12913] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12912] <... futex resumed>)        = 0
[pid 12912] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12912] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12913] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12913] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12912] <... futex resumed>)        = 0
[pid 12912] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12912] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12913] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12913] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12912] <... futex resumed>)        = 0
[pid 12913] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12912] exit_group(0)               = ?
[pid 12913] <... futex resumed>)        = ?
[pid 12913] +++ exited with 0 +++
[pid 12912] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12912, si_uid=0, si_status=0, 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 12914 attached
, child_tidptr=0x55558842d690) = 12914
[pid 12914] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12914] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12914] setpgid(0, 0)               = 0
[pid 12914] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12914] write(3, "1000", 4)         = 4
[pid 12914] close(3)                    = 0
[pid 12914] write(1, "executing program\n", 18executing program
) = 18
[pid 12914] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12914] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12914] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12914] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12914] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12914] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12914] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12915]}, 88) = 12915
[pid 12914] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12914] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12914] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12915 attached
 <unfinished ...>
[pid 12915] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12915] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12915] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12915] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12914] <... futex resumed>)        = 0
[pid 12914] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12914] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12915] <... futex resumed>)        = 1
[pid 12915] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12915] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12914] <... futex resumed>)        = 0
[pid 12914] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12914] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12915] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12915] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12914] <... futex resumed>)        = 0
[pid 12914] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12914] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12915] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12915] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12914] <... futex resumed>)        = 0
[pid 12914] exit_group(0 <unfinished ...>
[pid 12915] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12914] <... exit_group resumed>)   = ?
[pid 12915] <... futex resumed>)        = ?
[pid 12915] +++ exited with 0 +++
[pid 12914] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12914, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12916
./strace-static-x86_64: Process 12916 attached
[pid 12916] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12916] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12916] setpgid(0, 0)               = 0
[pid 12916] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12916] write(3, "1000", 4)         = 4
[pid 12916] close(3)                    = 0
executing program
[pid 12916] write(1, "executing program\n", 18) = 18
[pid 12916] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12916] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12916] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12916] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12916] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12916] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12916] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12917 attached
 => {parent_tid=[12917]}, 88) = 12917
[pid 12916] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12916] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12916] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12917] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12917] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12917] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12917] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12916] <... futex resumed>)        = 0
[pid 12916] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12916] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12917] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12917] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12916] <... futex resumed>)        = 0
[pid 12916] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12916] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12917] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12917] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12916] <... futex resumed>)        = 0
[pid 12916] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12916] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12917] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12917] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12916] <... futex resumed>)        = 0
[pid 12916] exit_group(0)               = ?
[pid 12917] +++ exited with 0 +++
[pid 12916] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12916, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12918
./strace-static-x86_64: Process 12918 attached
[pid 12918] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12918] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12918] setpgid(0, 0)               = 0
[pid 12918] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12918] write(3, "1000", 4)         = 4
[pid 12918] close(3)                    = 0
executing program
[pid 12918] write(1, "executing program\n", 18) = 18
[pid 12918] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12918] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12918] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12918] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12918] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12918] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12918] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12919 attached
 => {parent_tid=[12919]}, 88) = 12919
[pid 12918] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12918] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12918] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12919] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12919] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12919] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12919] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12918] <... futex resumed>)        = 0
[pid 12918] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12918] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12919] <... futex resumed>)        = 1
[pid 12919] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12919] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12918] <... futex resumed>)        = 0
[pid 12918] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12918] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12919] <... futex resumed>)        = 1
[pid 12919] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12919] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12918] <... futex resumed>)        = 0
[pid 12918] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12918] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12919] <... futex resumed>)        = 1
[pid 12919] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12919] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12918] <... futex resumed>)        = 0
[pid 12918] exit_group(0)               = ?
[pid 12919] <... futex resumed>)        = ?
[pid 12919] +++ exited with 0 +++
[pid 12918] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12918, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12920
./strace-static-x86_64: Process 12920 attached
[pid 12920] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12920] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12920] setpgid(0, 0)               = 0
[pid 12920] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12920] write(3, "1000", 4)         = 4
[pid 12920] close(3)                    = 0
executing program
[pid 12920] write(1, "executing program\n", 18) = 18
[pid 12920] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12920] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12920] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12920] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12920] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12920] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12920] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12921 attached
 <unfinished ...>
[pid 12921] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12920] <... clone3 resumed> => {parent_tid=[12921]}, 88) = 12921
[pid 12921] <... set_robust_list resumed>) = 0
[pid 12920] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12921] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12920] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12921] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12920] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12921] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12920] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12921] <... 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 12921] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12920] <... futex resumed>)        = 0
[pid 12921] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12920] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12921] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12920] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12921] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12920] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12921] <... futex resumed>)        = 0
[pid 12920] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12921] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12920] <... futex resumed>)        = 0
[pid 12920] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12921] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12921] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12920] <... futex resumed>)        = 0
[pid 12921] <... futex resumed>)        = 1
[pid 12920] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12921] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12920] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12921] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12921] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12920] <... futex resumed>)        = 0
[pid 12921] <... futex resumed>)        = 1
[pid 12920] exit_group(0 <unfinished ...>
[pid 12921] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12920] <... exit_group resumed>)   = ?
[pid 12921] <... futex resumed>)        = -1 (errno 18446744073709551414)
[pid 12921] +++ exited with 0 +++
[pid 12920] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12920, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12922
./strace-static-x86_64: Process 12922 attached
[pid 12922] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12922] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12922] setpgid(0, 0)               = 0
[pid 12922] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12922] write(3, "1000", 4)         = 4
[pid 12922] close(3)                    = 0
[pid 12922] write(1, "executing program\n", 18executing program
) = 18
[pid 12922] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12922] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12922] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12922] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12922] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12922] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12922] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12923]}, 88) = 12923
[pid 12922] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12922] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12922] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12923 attached
 <unfinished ...>
[pid 12923] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12923] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12923] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12923] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12922] <... futex resumed>)        = 0
[pid 12922] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12922] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12923] <... futex resumed>)        = 1
[pid 12923] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12923] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12922] <... futex resumed>)        = 0
[pid 12922] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12922] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12923] <... futex resumed>)        = 1
[pid 12923] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12923] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12922] <... futex resumed>)        = 0
[pid 12922] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12922] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12923] <... futex resumed>)        = 1
[pid 12923] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12923] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12922] <... futex resumed>)        = 0
[pid 12922] exit_group(0)               = ?
[pid 12923] <... futex resumed>)        = ?
[pid 12923] +++ exited with 0 +++
[pid 12922] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12922, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12924
./strace-static-x86_64: Process 12924 attached
[pid 12924] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12924] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12924] setpgid(0, 0)               = 0
[pid 12924] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12924] write(3, "1000", 4)         = 4
[pid 12924] close(3)                    = 0
[pid 12924] write(1, "executing program\n", 18executing program
) = 18
[pid 12924] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12924] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12924] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12924] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12924] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12924] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12924] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12925 attached
 => {parent_tid=[12925]}, 88) = 12925
[pid 12925] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12924] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12925] <... set_robust_list resumed>) = 0
[pid 12924] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12925] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12924] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12925] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12924] <... futex resumed>)        = 0
[pid 12924] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12925] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12925] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12924] <... futex resumed>)        = 0
[pid 12925] <... futex resumed>)        = 1
[pid 12924] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12925] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12924] <... futex resumed>)        = 0
[pid 12924] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12925] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12925] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12924] <... futex resumed>)        = 0
[pid 12925] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12924] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12925] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12924] <... futex resumed>)        = 0
[pid 12925] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12924] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12925] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12925] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12924] <... futex resumed>)        = 0
[pid 12925] <... futex resumed>)        = 1
[pid 12924] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12925] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12924] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12925] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12925] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12924] <... futex resumed>)        = 0
[pid 12925] <... futex resumed>)        = 1
[pid 12925] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12924] exit_group(0)               = ?
[pid 12925] <... futex resumed>)        = 231
[pid 12925] +++ exited with 0 +++
[pid 12924] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12924, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12926
./strace-static-x86_64: Process 12926 attached
[pid 12926] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12926] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12926] setpgid(0, 0)               = 0
[pid 12926] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12926] write(3, "1000", 4)         = 4
[pid 12926] close(3)                    = 0
[pid 12926] write(1, "executing program\n", 18executing program
) = 18
[pid 12926] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12926] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12926] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12926] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12926] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12926] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12926] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12927 attached
 <unfinished ...>
[pid 12927] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12927] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12927] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12926] <... clone3 resumed> => {parent_tid=[12927]}, 88) = 12927
[pid 12926] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12926] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12927] <... futex resumed>)        = 0
[pid 12927] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12927] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12927] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12926] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12926] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12927] <... futex resumed>)        = 0
[pid 12927] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12927] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12927] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12926] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12926] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12927] <... futex resumed>)        = 0
[pid 12927] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12927] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12927] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12926] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12926] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12927] <... futex resumed>)        = 0
[pid 12927] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12927] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12927] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12926] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12926] exit_group(0)               = ?
[pid 12927] <... futex resumed>)        = ?
[pid 12927] +++ exited with 0 +++
[pid 12926] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12926, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12928
./strace-static-x86_64: Process 12928 attached
[pid 12928] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12928] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12928] setpgid(0, 0)               = 0
[pid 12928] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12928] write(3, "1000", 4)         = 4
[pid 12928] close(3)                    = 0
[pid 12928] write(1, "executing program\n", 18executing program
) = 18
[pid 12928] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12928] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12928] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12928] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12928] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12928] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12928] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12929 attached
 => {parent_tid=[12929]}, 88) = 12929
[pid 12929] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12929] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12929] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12928] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12928] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12929] <... futex resumed>)        = 0
[pid 12929] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12928] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12929] <... 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 12929] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12929] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12928] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12928] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12929] <... futex resumed>)        = 0
[pid 12929] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12928] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12929] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12929] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12929] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12928] <... futex resumed>)        = 0
[pid 12928] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12929] <... futex resumed>)        = 0
[pid 12929] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12929] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12929] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12928] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12928] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12929] <... futex resumed>)        = 0
[pid 12928] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12929] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12929] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12928] <... futex resumed>)        = 0
[pid 12928] exit_group(0)               = ?
[pid 12929] +++ exited with 0 +++
[pid 12928] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12928, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12930
./strace-static-x86_64: Process 12930 attached
[pid 12930] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12930] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12930] setpgid(0, 0)               = 0
[pid 12930] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12930] write(3, "1000", 4)         = 4
[pid 12930] close(3executing program
)                    = 0
[pid 12930] write(1, "executing program\n", 18) = 18
[pid 12930] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12930] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12930] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12930] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12930] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12930] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12930] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12931 attached
 => {parent_tid=[12931]}, 88) = 12931
[pid 12930] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12930] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12930] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12931] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12931] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12931] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12931] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12930] <... futex resumed>)        = 0
[pid 12931] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12930] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12931] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12930] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12931] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12930] <... futex resumed>)        = 0
[pid 12930] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12930] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12931] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12931] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12930] <... futex resumed>)        = 0
[pid 12930] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12930] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12931] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12931] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12930] <... futex resumed>)        = 0
[pid 12931] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12930] exit_group(0)               = ?
[pid 12931] <... futex resumed>)        = ?
[pid 12931] +++ exited with 0 +++
[pid 12930] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12930, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12932
./strace-static-x86_64: Process 12932 attached
[pid 12932] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12932] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12932] setpgid(0, 0)               = 0
[pid 12932] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12932] write(3, "1000", 4)         = 4
[pid 12932] close(3)                    = 0
[pid 12932] write(1, "executing program\n", 18executing program
) = 18
[pid 12932] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12932] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12932] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12932] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12932] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12932] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12932] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12933 attached
 => {parent_tid=[12933]}, 88) = 12933
[pid 12933] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12933] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12933] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12932] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12932] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12933] <... futex resumed>)        = 0
[pid 12932] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12933] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12933] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12933] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12932] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12932] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12933] <... futex resumed>)        = 0
[pid 12933] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12933] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12932] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12933] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12932] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12932] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12933] <... futex resumed>)        = 0
[pid 12933] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12933] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12933] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12932] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12932] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12933] <... futex resumed>)        = 0
[pid 12933] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12932] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12933] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12933] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12932] <... futex resumed>)        = 0
[pid 12933] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12932] exit_group(0)               = ?
[pid 12933] <... futex resumed>)        = ?
[pid 12933] +++ exited with 0 +++
[pid 12932] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12932, si_uid=0, si_status=0, 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 12934 attached
, child_tidptr=0x55558842d690) = 12934
[pid 12934] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12934] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12934] setpgid(0, 0)               = 0
[pid 12934] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12934] write(3, "1000", 4)         = 4
[pid 12934] close(3)                    = 0
executing program
[pid 12934] write(1, "executing program\n", 18) = 18
[pid 12934] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12934] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12934] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12934] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12934] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12934] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12934] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12935]}, 88) = 12935
./strace-static-x86_64: Process 12935 attached
[pid 12934] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12935] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12934] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12935] <... set_robust_list resumed>) = 0
[pid 12935] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12934] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12935] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12934] <... futex resumed>)        = 0
[pid 12935] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12934] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12935] <... 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 12935] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12934] <... futex resumed>)        = 0
[pid 12934] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12934] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12935] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12935] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12934] <... futex resumed>)        = 0
[pid 12934] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12934] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12935] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12935] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12934] <... futex resumed>)        = 0
[pid 12934] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12934] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12935] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12935] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12934] <... futex resumed>)        = 0
[pid 12934] exit_group(0)               = ?
[pid 12935] +++ exited with 0 +++
[pid 12934] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12934, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12936
./strace-static-x86_64: Process 12936 attached
[pid 12936] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12936] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12936] setpgid(0, 0)               = 0
[pid 12936] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12936] write(3, "1000", 4)         = 4
[pid 12936] close(3)                    = 0
[pid 12936] write(1, "executing program\n", 18executing program
) = 18
[pid 12936] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12936] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12936] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12936] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12936] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12936] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12936] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12937 attached
 => {parent_tid=[12937]}, 88) = 12937
[pid 12937] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12937] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12937] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12936] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12936] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12937] <... futex resumed>)        = 0
[pid 12937] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12937] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12937] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12936] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12936] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12937] <... futex resumed>)        = 0
[pid 12937] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12937] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12937] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12936] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12936] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12937] <... futex resumed>)        = 0
[pid 12937] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12937] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12937] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12936] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12936] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12937] <... futex resumed>)        = 0
[pid 12937] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12936] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12937] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12937] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12937] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12936] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12936] exit_group(0)               = ?
[pid 12937] <... futex resumed>)        = ?
[pid 12937] +++ exited with 0 +++
[pid 12936] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12936, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12938
./strace-static-x86_64: Process 12938 attached
[pid 12938] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12938] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12938] setpgid(0, 0)               = 0
[pid 12938] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12938] write(3, "1000", 4)         = 4
executing program
[pid 12938] close(3)                    = 0
[pid 12938] write(1, "executing program\n", 18) = 18
[pid 12938] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12938] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12938] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12938] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12938] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12938] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12938] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12939]}, 88) = 12939
[pid 12938] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12938] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12938] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12939 attached
 <unfinished ...>
[pid 12939] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12939] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12939] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12939] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12938] <... futex resumed>)        = 0
[pid 12938] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12938] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12939] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12939] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12938] <... futex resumed>)        = 0
[pid 12938] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12938] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12939] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12939] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12938] <... futex resumed>)        = 0
[pid 12938] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12938] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12939] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12939] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12938] <... futex resumed>)        = 0
[pid 12938] exit_group(0)               = ?
[pid 12939] +++ exited with 0 +++
[pid 12938] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12938, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12940
./strace-static-x86_64: Process 12940 attached
[pid 12940] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12940] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12940] setpgid(0, 0)               = 0
[pid 12940] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12940] write(3, "1000", 4)         = 4
[pid 12940] close(3)                    = 0
[pid 12940] write(1, "executing program\n", 18executing program
) = 18
[pid 12940] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12940] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12940] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12940] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12940] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12940] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12940] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12941]}, 88) = 12941
./strace-static-x86_64: Process 12941 attached
[pid 12940] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12940] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12940] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12941] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12941] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12941] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12941] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12940] <... futex resumed>)        = 0
[pid 12940] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12940] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12941] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12941] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12940] <... futex resumed>)        = 0
[pid 12940] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12940] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12941] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12941] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12940] <... futex resumed>)        = 0
[pid 12940] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12940] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12941] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12941] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12940] <... futex resumed>)        = 0
[pid 12940] exit_group(0)               = ?
[pid 12941] +++ exited with 0 +++
[pid 12940] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12940, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12942
./strace-static-x86_64: Process 12942 attached
[pid 12942] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12942] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12942] setpgid(0, 0)               = 0
[pid 12942] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12942] write(3, "1000", 4)         = 4
[pid 12942] close(3)                    = 0
executing program
[pid 12942] write(1, "executing program\n", 18) = 18
[pid 12942] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12942] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12942] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12942] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12942] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12942] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12942] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12943]}, 88) = 12943
[pid 12942] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12942] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12942] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12943 attached
 <unfinished ...>
[pid 12943] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12943] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12943] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12943] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12942] <... futex resumed>)        = 0
[pid 12942] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12942] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12943] <... futex resumed>)        = 1
[pid 12943] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12943] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12942] <... futex resumed>)        = 0
[pid 12942] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12942] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12943] <... futex resumed>)        = 1
[pid 12943] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12943] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12942] <... futex resumed>)        = 0
[pid 12942] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12942] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12943] <... futex resumed>)        = 1
[pid 12943] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12943] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12942] <... futex resumed>)        = 0
[pid 12942] exit_group(0)               = ?
[pid 12943] <... futex resumed>)        = ?
[pid 12943] +++ exited with 0 +++
[pid 12942] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12942, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12944
./strace-static-x86_64: Process 12944 attached
[pid 12944] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12944] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12944] setpgid(0, 0)               = 0
[pid 12944] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12944] write(3, "1000", 4)         = 4
[pid 12944] close(3)                    = 0
executing program
[pid 12944] write(1, "executing program\n", 18) = 18
[pid 12944] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12944] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12944] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12944] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12944] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12944] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12944] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12945]}, 88) = 12945
[pid 12944] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12944] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12944] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12945 attached
 <unfinished ...>
[pid 12945] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12945] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12945] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12945] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12944] <... futex resumed>)        = 0
[pid 12944] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12944] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12945] <... futex resumed>)        = 1
[pid 12945] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12945] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12944] <... futex resumed>)        = 0
[pid 12944] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12944] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12945] <... futex resumed>)        = 1
[pid 12945] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12945] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12944] <... futex resumed>)        = 0
[pid 12944] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12944] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12945] <... futex resumed>)        = 1
[pid 12945] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12945] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12944] <... futex resumed>)        = 0
[pid 12944] exit_group(0)               = ?
[pid 12945] <... futex resumed>)        = ?
[pid 12945] +++ exited with 0 +++
[pid 12944] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12944, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12946
./strace-static-x86_64: Process 12946 attached
[pid 12946] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12946] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12946] setpgid(0, 0)               = 0
[pid 12946] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12946] write(3, "1000", 4)         = 4
[pid 12946] close(3)                    = 0
executing program
[pid 12946] write(1, "executing program\n", 18) = 18
[pid 12946] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12946] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12946] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12946] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12946] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12946] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12946] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12947]}, 88) = 12947
[pid 12946] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12946] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12946] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12947 attached
 <unfinished ...>
[pid 12947] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12947] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12947] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12947] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12946] <... futex resumed>)        = 0
[pid 12946] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12946] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12947] <... futex resumed>)        = 1
[pid 12947] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12947] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12946] <... futex resumed>)        = 0
[pid 12946] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12946] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12947] <... futex resumed>)        = 1
[pid 12947] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12947] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12946] <... futex resumed>)        = 0
[pid 12946] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12946] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12947] <... futex resumed>)        = 1
[pid 12947] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12947] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12946] <... futex resumed>)        = 0
[pid 12946] exit_group(0)               = ?
[pid 12947] <... futex resumed>)        = ?
[pid 12947] +++ exited with 0 +++
[pid 12946] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12946, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12949
./strace-static-x86_64: Process 12949 attached
[pid 12949] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12949] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12949] setpgid(0, 0)               = 0
[pid 12949] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12949] write(3, "1000", 4)         = 4
[pid 12949] close(3executing program
)                    = 0
[pid 12949] write(1, "executing program\n", 18) = 18
[pid 12949] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12949] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12949] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12949] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12949] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12949] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12949] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12950 attached
 => {parent_tid=[12950]}, 88) = 12950
[pid 12950] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12949] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12950] <... set_robust_list resumed>) = 0
[pid 12949] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12950] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12950] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12949] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12950] <... futex resumed>)        = 0
[pid 12950] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12949] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12950] <... 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 12950] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12950] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12949] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12949] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12950] <... futex resumed>)        = 0
[pid 12949] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12950] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12950] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12949] <... futex resumed>)        = 0
[pid 12949] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12949] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12950] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12950] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12949] <... futex resumed>)        = 0
[pid 12949] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12949] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12950] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12950] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12949] <... futex resumed>)        = 0
[pid 12949] exit_group(0)               = ?
[pid 12950] +++ exited with 0 +++
[pid 12949] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12949, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12951
./strace-static-x86_64: Process 12951 attached
[pid 12951] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12951] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12951] setpgid(0, 0)               = 0
[pid 12951] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12951] write(3, "1000", 4)         = 4
[pid 12951] close(3)                    = 0
[pid 12951] write(1, "executing program\n", 18executing program
) = 18
[pid 12951] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12951] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12951] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12951] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12951] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12951] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12951] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12952 attached
 <unfinished ...>
[pid 12952] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12952] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12952] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12951] <... clone3 resumed> => {parent_tid=[12952]}, 88) = 12952
[pid 12951] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12951] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12952] <... futex resumed>)        = 0
[pid 12952] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12952] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12952] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12951] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12951] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12952] <... futex resumed>)        = 0
[pid 12952] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12952] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12952] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12951] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12951] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12952] <... futex resumed>)        = 0
[pid 12951] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12952] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12952] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12951] <... futex resumed>)        = 0
[pid 12951] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12951] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12952] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12952] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12951] <... futex resumed>)        = 0
[pid 12951] exit_group(0)               = ?
[pid 12952] +++ exited with 0 +++
[pid 12951] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12951, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12953
./strace-static-x86_64: Process 12953 attached
[pid 12953] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12953] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12953] setpgid(0, 0)               = 0
[pid 12953] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12953] write(3, "1000", 4)         = 4
[pid 12953] close(3)                    = 0
executing program
[pid 12953] write(1, "executing program\n", 18) = 18
[pid 12953] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12953] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12953] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12953] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12953] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12953] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12953] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12954]}, 88) = 12954
[pid 12953] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12953] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12953] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12954 attached
 <unfinished ...>
[pid 12954] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12954] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12954] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12954] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12953] <... futex resumed>)        = 0
[pid 12953] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12953] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12954] <... futex resumed>)        = 1
[pid 12954] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12954] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12953] <... futex resumed>)        = 0
[pid 12953] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12953] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12954] <... futex resumed>)        = 1
[pid 12954] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12954] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12953] <... futex resumed>)        = 0
[pid 12953] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12953] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12954] <... futex resumed>)        = 1
[pid 12954] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12954] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12953] <... futex resumed>)        = 0
[pid 12953] exit_group(0)               = ?
[pid 12954] <... futex resumed>)        = ?
[pid 12954] +++ exited with 0 +++
[pid 12953] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12953, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12955
./strace-static-x86_64: Process 12955 attached
[pid 12955] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12955] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12955] setpgid(0, 0)               = 0
[pid 12955] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12955] write(3, "1000", 4)         = 4
[pid 12955] close(3executing program
)                    = 0
[pid 12955] write(1, "executing program\n", 18) = 18
[pid 12955] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12955] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12955] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12955] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12955] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12955] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12955] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12956 attached
 => {parent_tid=[12956]}, 88) = 12956
[pid 12956] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12955] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12956] <... set_robust_list resumed>) = 0
[pid 12955] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12956] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12955] <... futex resumed>)        = 0
[pid 12956] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12955] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12956] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12956] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12955] <... futex resumed>)        = 0
[pid 12955] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12955] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12956] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12956] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12955] <... futex resumed>)        = 0
[pid 12955] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12955] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12956] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12956] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12955] <... futex resumed>)        = 0
[pid 12955] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12955] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12956] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12956] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12955] <... futex resumed>)        = 0
[pid 12955] exit_group(0)               = ?
[pid 12956] +++ exited with 0 +++
[pid 12955] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12955, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12957
./strace-static-x86_64: Process 12957 attached
[pid 12957] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12957] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12957] setpgid(0, 0)               = 0
[pid 12957] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12957] write(3, "1000", 4)         = 4
executing program
[pid 12957] close(3)                    = 0
[pid 12957] write(1, "executing program\n", 18) = 18
[pid 12957] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12957] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12957] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12957] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12957] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12957] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12957] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12958]}, 88) = 12958
[pid 12957] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12957] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12957] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12958 attached
 <unfinished ...>
[pid 12958] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12958] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12958] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12958] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12957] <... futex resumed>)        = 0
[pid 12957] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12957] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12958] <... futex resumed>)        = 1
[pid 12958] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12958] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12957] <... futex resumed>)        = 0
[pid 12957] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12957] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12958] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12958] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12957] <... futex resumed>)        = 0
[pid 12957] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12957] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12958] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12958] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12957] <... futex resumed>)        = 0
[pid 12957] exit_group(0)               = ?
[pid 12958] +++ exited with 0 +++
[pid 12957] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12957, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12959
./strace-static-x86_64: Process 12959 attached
[pid 12959] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12959] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12959] setpgid(0, 0)               = 0
[pid 12959] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12959] write(3, "1000", 4)         = 4
[pid 12959] close(3)                    = 0
[pid 12959] write(1, "executing program\n", 18executing program
) = 18
[pid 12959] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12959] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12959] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12959] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12959] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12959] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12959] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12960 attached
 <unfinished ...>
[pid 12960] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12959] <... clone3 resumed> => {parent_tid=[12960]}, 88) = 12960
[pid 12960] <... set_robust_list resumed>) = 0
[pid 12959] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12960] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12959] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12960] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12959] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12959] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12960] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12960] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12959] <... futex resumed>)        = 0
[pid 12960] <... futex resumed>)        = 1
[pid 12959] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12960] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 12959] <... futex resumed>)        = 0
[pid 12959] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12960] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 12960] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12959] <... futex resumed>)        = 0
[pid 12960] <... futex resumed>)        = 1
[pid 12959] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12960] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12959] <... futex resumed>)        = 0
[pid 12959] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12960] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12960] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12959] <... futex resumed>)        = 0
[pid 12960] <... futex resumed>)        = 1
[pid 12959] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12959] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12960] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12960] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12959] <... futex resumed>)        = 0
[pid 12960] <... futex resumed>)        = 1
[pid 12959] exit_group(0 <unfinished ...>
[pid 12960] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12959] <... exit_group resumed>)   = ?
[pid 12960] +++ exited with 0 +++
[pid 12959] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12959, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12961
./strace-static-x86_64: Process 12961 attached
[pid 12961] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12961] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12961] setpgid(0, 0)               = 0
[pid 12961] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12961] write(3, "1000", 4)         = 4
[pid 12961] close(3)                    = 0
executing program
[pid 12961] write(1, "executing program\n", 18) = 18
[pid 12961] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12961] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12961] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12961] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12961] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12961] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12961] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12962 attached
 => {parent_tid=[12962]}, 88) = 12962
[pid 12962] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12962] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12962] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12961] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12961] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12962] <... futex resumed>)        = 0
[pid 12962] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12962] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12962] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12961] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12961] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12962] <... futex resumed>)        = 0
[pid 12962] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12962] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12962] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12961] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12961] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12962] <... futex resumed>)        = 0
[pid 12962] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12961] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12962] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12962] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12961] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12961] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12962] <... futex resumed>)        = 0
[pid 12962] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12962] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12962] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12961] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12961] exit_group(0)               = ?
[pid 12962] <... futex resumed>)        = ?
[pid 12962] +++ exited with 0 +++
[pid 12961] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12961, si_uid=0, si_status=0, 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 12963 attached
, child_tidptr=0x55558842d690) = 12963
[pid 12963] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12963] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12963] setpgid(0, 0)               = 0
[pid 12963] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12963] write(3, "1000", 4)         = 4
[pid 12963] close(3)                    = 0
[pid 12963] write(1, "executing program\n", 18executing program
) = 18
[pid 12963] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12963] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12963] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12963] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12963] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12963] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12963] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12964 attached
 => {parent_tid=[12964]}, 88) = 12964
[pid 12964] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12963] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12963] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12963] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12964] <... set_robust_list resumed>) = 0
[pid 12964] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12964] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12964] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12963] <... futex resumed>)        = 0
[pid 12963] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12963] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12964] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12964] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12963] <... futex resumed>)        = 0
[pid 12963] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12963] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12964] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12964] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12963] <... futex resumed>)        = 0
[pid 12963] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12963] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12964] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12964] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12963] <... futex resumed>)        = 0
[pid 12963] exit_group(0)               = ?
[pid 12964] +++ exited with 0 +++
[pid 12963] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12963, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12965
./strace-static-x86_64: Process 12965 attached
[pid 12965] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12965] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12965] setpgid(0, 0)               = 0
[pid 12965] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12965] write(3, "1000", 4)         = 4
[pid 12965] close(3)                    = 0
[pid 12965] write(1, "executing program\n", 18executing program
) = 18
[pid 12965] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12965] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12965] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12965] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12965] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12965] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12965] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12966]}, 88) = 12966
[pid 12965] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12965] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12965] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12966 attached
 <unfinished ...>
[pid 12966] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12966] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12966] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12966] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12965] <... futex resumed>)        = 0
[pid 12965] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12965] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12966] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12966] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12965] <... futex resumed>)        = 0
[pid 12965] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12966] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12965] <... futex resumed>)        = 0
[pid 12965] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12966] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12966] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12965] <... futex resumed>)        = 0
[pid 12965] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12965] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12966] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12966] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12965] <... futex resumed>)        = 0
[pid 12966] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12965] exit_group(0)               = ?
[pid 12966] <... futex resumed>)        = ?
[pid 12966] +++ exited with 0 +++
[pid 12965] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12965, si_uid=0, si_status=0, 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 12967 attached
, child_tidptr=0x55558842d690) = 12967
[pid 12967] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12967] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12967] setpgid(0, 0)               = 0
[pid 12967] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12967] write(3, "1000", 4)         = 4
executing program
[pid 12967] close(3)                    = 0
[pid 12967] write(1, "executing program\n", 18) = 18
[pid 12967] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12967] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12967] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12967] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12967] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12967] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12967] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12968]}, 88) = 12968
[pid 12967] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12967] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12967] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12968 attached
 <unfinished ...>
[pid 12968] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12968] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12968] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12968] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12967] <... futex resumed>)        = 0
[pid 12967] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12967] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12968] <... futex resumed>)        = 1
[pid 12968] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12968] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12967] <... futex resumed>)        = 0
[pid 12967] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12967] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12968] <... futex resumed>)        = 1
[pid 12968] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12968] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12967] <... futex resumed>)        = 0
[pid 12967] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12967] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12968] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12968] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12967] <... futex resumed>)        = 0
[pid 12967] exit_group(0 <unfinished ...>
[pid 12968] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12967] <... exit_group resumed>)   = ?
[pid 12968] <... futex resumed>)        = ?
[pid 12968] +++ exited with 0 +++
[pid 12967] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12967, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12969
./strace-static-x86_64: Process 12969 attached
[pid 12969] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12969] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12969] setpgid(0, 0)               = 0
[pid 12969] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12969] write(3, "1000", 4)         = 4
[pid 12969] close(3executing program
)                    = 0
[pid 12969] write(1, "executing program\n", 18) = 18
[pid 12969] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12969] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12969] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12969] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12969] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12969] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12969] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12970 attached
 => {parent_tid=[12970]}, 88) = 12970
[pid 12969] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12969] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12969] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12970] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12970] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12970] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12970] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12969] <... futex resumed>)        = 0
[pid 12969] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12969] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12970] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12970] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12969] <... futex resumed>)        = 0
[pid 12969] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12969] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12970] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12970] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12969] <... futex resumed>)        = 0
[pid 12969] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12969] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12970] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12970] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12969] <... futex resumed>)        = 0
[pid 12970] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12969] exit_group(0)               = ?
[pid 12970] <... futex resumed>)        = ?
[pid 12970] +++ exited with 0 +++
[pid 12969] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12969, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12971
./strace-static-x86_64: Process 12971 attached
[pid 12971] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12971] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12971] setpgid(0, 0)               = 0
[pid 12971] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12971] write(3, "1000", 4)         = 4
[pid 12971] close(3)                    = 0
[pid 12971] write(1, "executing program\n", 18executing program
) = 18
[pid 12971] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12971] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12971] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12971] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12971] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12971] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12971] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12972 attached
 <unfinished ...>
[pid 12972] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12972] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12972] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12971] <... clone3 resumed> => {parent_tid=[12972]}, 88) = 12972
[pid 12971] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12971] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12972] <... futex resumed>)        = 0
[pid 12972] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12972] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12972] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12971] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12971] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12972] <... futex resumed>)        = 0
[pid 12972] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12972] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12972] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12971] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12971] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12972] <... futex resumed>)        = 0
[pid 12972] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12972] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12972] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12971] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12971] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12972] <... futex resumed>)        = 0
[pid 12972] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12972] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12972] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12971] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12971] exit_group(0)               = ?
[pid 12972] <... futex resumed>)        = ?
[pid 12972] +++ exited with 0 +++
[pid 12971] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12971, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12973
./strace-static-x86_64: Process 12973 attached
[pid 12973] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12973] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12973] setpgid(0, 0)               = 0
[pid 12973] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12973] write(3, "1000", 4)         = 4
[pid 12973] close(3)                    = 0
[pid 12973] write(1, "executing program\n", 18executing program
) = 18
[pid 12973] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12973] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12973] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12973] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12973] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12973] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12973] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12974 attached
 => {parent_tid=[12974]}, 88) = 12974
[pid 12974] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12974] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12974] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12973] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12973] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12974] <... futex resumed>)        = 0
[pid 12973] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12974] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12974] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12974] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12973] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12973] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12974] <... futex resumed>)        = 0
[pid 12974] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12974] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12974] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12973] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12973] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12974] <... futex resumed>)        = 0
[pid 12974] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12973] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12974] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12974] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12973] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12973] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12974] <... futex resumed>)        = 0
[pid 12974] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12973] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12974] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12974] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12973] <... futex resumed>)        = 0
[pid 12973] exit_group(0)               = ?
[pid 12974] +++ exited with 0 +++
[pid 12973] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12973, 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=0x55558842d690) = 12975
./strace-static-x86_64: Process 12975 attached
[pid 12975] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12975] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12975] setpgid(0, 0)               = 0
[pid 12975] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12975] write(3, "1000", 4)         = 4
[pid 12975] close(3)                    = 0
[pid 12975] write(1, "executing program\n", 18executing program
) = 18
[pid 12975] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12975] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12975] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12975] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12975] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12975] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12975] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12976 attached
 => {parent_tid=[12976]}, 88) = 12976
[pid 12976] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12976] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12976] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12975] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12975] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12976] <... futex resumed>)        = 0
[pid 12976] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12976] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12976] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12975] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12975] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12976] <... futex resumed>)        = 0
[pid 12976] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12976] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12976] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12975] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12975] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12976] <... futex resumed>)        = 0
[pid 12976] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12976] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12976] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12975] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12975] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12976] <... futex resumed>)        = 0
[pid 12976] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12976] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12976] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12975] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12975] exit_group(0)               = ?
[pid 12976] <... futex resumed>)        = ?
[pid 12976] +++ exited with 0 +++
[pid 12975] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12975, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12977
./strace-static-x86_64: Process 12977 attached
[pid 12977] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12977] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12977] setpgid(0, 0)               = 0
[pid 12977] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12977] write(3, "1000", 4)         = 4
[pid 12977] close(3)                    = 0
[pid 12977] write(1, "executing program\n", 18executing program
) = 18
[pid 12977] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12977] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12977] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12977] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12977] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12977] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12977] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12978 attached
 <unfinished ...>
[pid 12978] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12978] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12978] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12977] <... clone3 resumed> => {parent_tid=[12978]}, 88) = 12978
[pid 12977] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12977] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12978] <... futex resumed>)        = 0
[pid 12978] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12978] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12978] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12977] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12977] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12978] <... futex resumed>)        = 0
[pid 12978] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12978] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12978] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12977] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12977] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12978] <... futex resumed>)        = 0
[pid 12978] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12978] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12978] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12977] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12977] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12978] <... futex resumed>)        = 0
[pid 12978] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12978] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12978] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12977] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12977] exit_group(0)               = ?
[pid 12978] <... futex resumed>)        = ?
[pid 12978] +++ exited with 0 +++
[pid 12977] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12977, si_uid=0, si_status=0, 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 12979 attached
, child_tidptr=0x55558842d690) = 12979
[pid 12979] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12979] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12979] setpgid(0, 0)               = 0
[pid 12979] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12979] write(3, "1000", 4)         = 4
[pid 12979] close(3)                    = 0
[pid 12979] write(1, "executing program\n", 18executing program
) = 18
[pid 12979] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12979] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12979] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12979] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12979] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12979] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12979] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12980 attached
 => {parent_tid=[12980]}, 88) = 12980
[pid 12980] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12980] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12980] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12979] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12979] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12980] <... futex resumed>)        = 0
[pid 12980] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12980] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12980] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12979] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12979] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12980] <... futex resumed>)        = 0
[pid 12980] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12979] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12980] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12979] <... futex resumed>)        = 0
[pid 12979] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12980] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12979] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12980] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12980] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12979] <... futex resumed>)        = 0
[pid 12979] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12979] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12980] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12980] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12979] <... futex resumed>)        = 0
[pid 12979] exit_group(0)               = ?
[pid 12980] +++ exited with 0 +++
[pid 12979] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12979, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12981
./strace-static-x86_64: Process 12981 attached
[pid 12981] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12981] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12981] setpgid(0, 0)               = 0
[pid 12981] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12981] write(3, "1000", 4)         = 4
executing program
[pid 12981] close(3)                    = 0
[pid 12981] write(1, "executing program\n", 18) = 18
[pid 12981] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12981] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12981] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12981] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12981] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12981] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12981] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12982 attached
 => {parent_tid=[12982]}, 88) = 12982
[pid 12981] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12981] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12981] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12982] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12982] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12982] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12982] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12981] <... futex resumed>)        = 0
[pid 12981] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12981] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12982] <... futex resumed>)        = 1
[pid 12982] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12982] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12981] <... futex resumed>)        = 0
[pid 12981] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12981] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12982] <... futex resumed>)        = 1
[pid 12982] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12982] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12981] <... futex resumed>)        = 0
[pid 12981] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12981] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12982] <... futex resumed>)        = 1
[pid 12982] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12982] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12981] <... futex resumed>)        = 0
[pid 12981] exit_group(0)               = ?
[pid 12982] <... futex resumed>)        = ?
[pid 12982] +++ exited with 0 +++
[pid 12981] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12981, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12983
./strace-static-x86_64: Process 12983 attached
[pid 12983] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12983] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12983] setpgid(0, 0)               = 0
[pid 12983] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12983] write(3, "1000", 4)         = 4
[pid 12983] close(3)                    = 0
executing program
[pid 12983] write(1, "executing program\n", 18) = 18
[pid 12983] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12983] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12983] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12983] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12983] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12983] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12983] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[12984]}, 88) = 12984
[pid 12983] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12983] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12983] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 12984 attached
 <unfinished ...>
[pid 12984] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12984] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12984] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12984] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12983] <... futex resumed>)        = 0
[pid 12983] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12983] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12984] <... futex resumed>)        = 1
[pid 12984] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12984] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12983] <... futex resumed>)        = 0
[pid 12983] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12983] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12984] <... futex resumed>)        = 1
[pid 12984] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12984] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12983] <... futex resumed>)        = 0
[pid 12983] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12983] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12984] <... futex resumed>)        = 1
[pid 12984] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12984] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12983] <... futex resumed>)        = 0
[pid 12983] exit_group(0)               = ?
[pid 12984] <... futex resumed>)        = ?
[pid 12984] +++ exited with 0 +++
[pid 12983] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12983, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12985
./strace-static-x86_64: Process 12985 attached
[pid 12985] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12985] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12985] setpgid(0, 0)               = 0
[pid 12985] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12985] write(3, "1000", 4executing program
)         = 4
[pid 12985] close(3)                    = 0
[pid 12985] write(1, "executing program\n", 18) = 18
[pid 12985] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12985] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12985] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12985] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12985] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12985] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12985] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12986 attached
 => {parent_tid=[12986]}, 88) = 12986
[pid 12986] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12985] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12986] <... set_robust_list resumed>) = 0
[pid 12986] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12986] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12985] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12985] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12986] <... futex resumed>)        = 0
[pid 12986] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12986] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12986] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12985] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12985] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12986] <... futex resumed>)        = 0
[pid 12985] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12986] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12986] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12985] <... futex resumed>)        = 0
[pid 12986] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12985] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12986] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12986] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12986] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12985] <... futex resumed>)        = 1
[pid 12986] <... futex resumed>)        = 0
[pid 12985] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12986] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12985] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12986] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12985] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12985] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12986] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12986] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12985] <... futex resumed>)        = 0
[pid 12985] exit_group(0)               = ?
[pid 12986] +++ exited with 0 +++
[pid 12985] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12985, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12987
./strace-static-x86_64: Process 12987 attached
[pid 12987] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12987] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12987] setpgid(0, 0)               = 0
[pid 12987] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12987] write(3, "1000", 4)         = 4
[pid 12987] close(3)                    = 0
[pid 12987] write(1, "executing program\n", 18executing program
) = 18
[pid 12987] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12987] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12987] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12987] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12987] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12987] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12987] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12988 attached
 => {parent_tid=[12988]}, 88) = 12988
[pid 12988] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12988] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12988] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12987] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12987] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12988] <... futex resumed>)        = 0
[pid 12987] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12988] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12988] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12988] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12987] <... futex resumed>)        = 0
[pid 12987] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12988] <... futex resumed>)        = 0
[pid 12988] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12987] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12988] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12987] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12988] <... futex resumed>)        = 0
[pid 12988] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12987] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12988] <... futex resumed>)        = 0
[pid 12988] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12988] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12988] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12987] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12987] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12988] <... futex resumed>)        = 0
[pid 12987] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12988] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12988] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12988] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12987] <... futex resumed>)        = 0
[pid 12987] exit_group(0)               = ?
[pid 12988] <... futex resumed>)        = ?
[pid 12988] +++ exited with 0 +++
[pid 12987] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12987, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12989
./strace-static-x86_64: Process 12989 attached
[pid 12989] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12989] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12989] setpgid(0, 0)               = 0
[pid 12989] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12989] write(3, "1000", 4)         = 4
[pid 12989] close(3)                    = 0
[pid 12989] write(1, "executing program\n", 18executing program
) = 18
[pid 12989] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12989] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12989] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12989] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12989] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12989] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12989] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12990 attached
 => {parent_tid=[12990]}, 88) = 12990
[pid 12989] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12989] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12989] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12990] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12990] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12990] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12990] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12989] <... futex resumed>)        = 0
[pid 12989] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12989] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12990] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12990] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12989] <... futex resumed>)        = 0
[pid 12989] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12989] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12990] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12990] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12989] <... futex resumed>)        = 0
[pid 12990] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12989] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12989] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12990] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12990] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12990] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12989] <... futex resumed>)        = 0
[pid 12989] exit_group(0)               = ?
[pid 12990] +++ exited with 0 +++
[pid 12989] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12989, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12991
./strace-static-x86_64: Process 12991 attached
[pid 12991] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12991] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12991] setpgid(0, 0)               = 0
[pid 12991] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12991] write(3, "1000", 4)         = 4
[pid 12991] close(3)                    = 0
[pid 12991] write(1, "executing program\n", 18executing program
) = 18
[pid 12991] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12991] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12991] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12991] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12991] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12991] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12991] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12992 attached
 => {parent_tid=[12992]}, 88) = 12992
[pid 12992] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12992] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12992] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12991] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12991] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12992] <... futex resumed>)        = 0
[pid 12992] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 12991] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12992] <... 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 12992] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12992] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12991] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12991] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12992] <... futex resumed>)        = 0
[pid 12992] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12992] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12992] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12991] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12991] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12992] <... futex resumed>)        = 0
[pid 12992] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12992] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12992] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12991] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12991] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 12992] <... futex resumed>)        = 0
[pid 12991] <... futex resumed>)        = 1
[pid 12992] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12992] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12992] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12991] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12991] exit_group(0)               = ?
[pid 12992] <... futex resumed>)        = ?
[pid 12992] +++ exited with 0 +++
[pid 12991] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12991, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12993
./strace-static-x86_64: Process 12993 attached
[pid 12993] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12993] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12993] setpgid(0, 0)               = 0
[pid 12993] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12993] write(3, "1000", 4)         = 4
[pid 12993] close(3)                    = 0
[pid 12993] write(1, "executing program\n", 18executing program
) = 18
[pid 12993] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12993] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12993] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12993] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12993] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12993] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12993] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12994 attached
 <unfinished ...>
[pid 12994] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12994] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12994] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12993] <... clone3 resumed> => {parent_tid=[12994]}, 88) = 12994
[pid 12993] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12993] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12994] <... futex resumed>)        = 0
[pid 12994] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12994] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12994] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12993] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12993] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12994] <... futex resumed>)        = 0
[pid 12994] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12994] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12994] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12993] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12993] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12994] <... futex resumed>)        = 0
[pid 12994] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12994] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12994] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12993] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12993] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12994] <... futex resumed>)        = 0
[pid 12994] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 12993] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12994] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 12994] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12994] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12993] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 12993] exit_group(0)               = ?
[pid 12994] <... futex resumed>)        = ?
[pid 12994] +++ exited with 0 +++
[pid 12993] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12993, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12995
./strace-static-x86_64: Process 12995 attached
[pid 12995] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12995] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12995] setpgid(0, 0)               = 0
[pid 12995] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12995] write(3, "1000", 4)         = 4
[pid 12995] close(3)                    = 0
[pid 12995] write(1, "executing program\n", 18executing program
) = 18
[pid 12995] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12995] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12995] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12995] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12995] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12995] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12995] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12996 attached
 => {parent_tid=[12996]}, 88) = 12996
[pid 12996] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12996] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12996] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12995] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12995] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12996] <... futex resumed>)        = 0
[pid 12996] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12996] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12996] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12995] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12995] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12996] <... futex resumed>)        = 0
[pid 12996] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12996] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12996] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12995] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12995] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12996] <... futex resumed>)        = 0
[pid 12996] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 12996] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12996] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12995] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12995] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12996] <... futex resumed>)        = 0
[pid 12996] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12996] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12996] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12995] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12995] exit_group(0)               = ?
[pid 12996] <... futex resumed>)        = ?
[pid 12996] +++ exited with 0 +++
[pid 12995] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12995, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12997
./strace-static-x86_64: Process 12997 attached
[pid 12997] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12997] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12997] setpgid(0, 0)               = 0
[pid 12997] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12997] write(3, "1000", 4)         = 4
[pid 12997] close(3)                    = 0
[pid 12997] write(1, "executing program\n", 18executing program
) = 18
[pid 12997] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12997] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12997] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12997] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12997] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12997] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12997] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 12998 attached
 => {parent_tid=[12998]}, 88) = 12998
[pid 12998] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 12998] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12998] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12997] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 12997] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12998] <... futex resumed>)        = 0
[pid 12998] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 12998] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12998] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12997] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12997] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12998] <... futex resumed>)        = 0
[pid 12998] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 12998] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12998] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12997] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 12997] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12998] <... futex resumed>)        = 0
[pid 12998] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 12997] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12998] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 12998] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12997] <... futex resumed>)        = 0
[pid 12997] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12997] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 12998] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 12998] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12998] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 12997] <... futex resumed>)        = 0
[pid 12997] exit_group(0)               = ?
[pid 12998] <... futex resumed>)        = ?
[pid 12998] +++ exited with 0 +++
[pid 12997] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12997, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 12999
./strace-static-x86_64: Process 12999 attached
[pid 12999] set_robust_list(0x55558842d6a0, 24) = 0
[pid 12999] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 12999] setpgid(0, 0)               = 0
[pid 12999] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 12999] write(3, "1000", 4)         = 4
executing program
[pid 12999] close(3)                    = 0
[pid 12999] write(1, "executing program\n", 18) = 18
[pid 12999] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12999] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 12999] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 12999] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 12999] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 12999] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 12999] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13000]}, 88) = 13000
./strace-static-x86_64: Process 13000 attached
[pid 12999] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13000] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 12999] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13000] <... set_robust_list resumed>) = 0
[pid 12999] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13000] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 12999] <... futex resumed>)        = 0
[pid 13000] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 12999] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13000] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13000] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12999] <... futex resumed>)        = 0
[pid 12999] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12999] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13000] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13000] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12999] <... futex resumed>)        = 0
[pid 12999] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12999] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13000] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13000] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12999] <... futex resumed>)        = 0
[pid 12999] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 12999] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13000] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13000] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 12999] <... futex resumed>)        = 0
[pid 12999] exit_group(0)               = ?
[pid 13000] +++ exited with 0 +++
[pid 12999] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12999, si_uid=0, si_status=0, 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 13001 attached
, child_tidptr=0x55558842d690) = 13001
[pid 13001] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13001] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13001] setpgid(0, 0)               = 0
[pid 13001] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13001] write(3, "1000", 4)         = 4
[pid 13001] close(3)                    = 0
[pid 13001] write(1, "executing program\n", 18executing program
) = 18
[pid 13001] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13001] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13001] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13001] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13001] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13001] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13001] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13002 attached
 => {parent_tid=[13002]}, 88) = 13002
[pid 13002] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13002] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13002] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13001] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13001] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13002] <... futex resumed>)        = 0
[pid 13002] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 13001] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13002] <... 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 13002] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13002] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13001] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13001] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13002] <... futex resumed>)        = 0
[pid 13002] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13002] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13002] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13001] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13001] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13002] <... futex resumed>)        = 0
[pid 13002] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13002] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13002] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13001] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13001] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13002] <... futex resumed>)        = 0
[pid 13002] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13002] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13002] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13001] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13001] exit_group(0)               = ?
[pid 13002] <... futex resumed>)        = ?
[pid 13002] +++ exited with 0 +++
[pid 13001] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13001, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13003
./strace-static-x86_64: Process 13003 attached
[pid 13003] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13003] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13003] setpgid(0, 0)               = 0
[pid 13003] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13003] write(3, "1000", 4)         = 4
[pid 13003] close(3)                    = 0
[pid 13003] write(1, "executing program\n", 18executing program
) = 18
[pid 13003] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13003] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13003] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13003] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13003] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13003] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13003] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13004]}, 88) = 13004
[pid 13003] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13003] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13003] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 13004 attached
 <unfinished ...>
[pid 13004] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13004] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13004] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13004] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13003] <... futex resumed>)        = 0
[pid 13003] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13003] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13004] <... futex resumed>)        = 1
[pid 13004] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13004] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13003] <... futex resumed>)        = 0
[pid 13003] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13003] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13004] <... futex resumed>)        = 1
[pid 13004] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13004] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13003] <... futex resumed>)        = 0
[pid 13003] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13003] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13004] <... futex resumed>)        = 1
[pid 13004] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13004] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13003] <... futex resumed>)        = 0
[pid 13003] exit_group(0)               = ?
[pid 13004] <... futex resumed>)        = ?
[pid 13004] +++ exited with 0 +++
[pid 13003] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13003, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13005
./strace-static-x86_64: Process 13005 attached
[pid 13005] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13005] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13005] setpgid(0, 0)               = 0
[pid 13005] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13005] write(3, "1000", 4)         = 4
[pid 13005] close(3)                    = 0
[pid 13005] write(1, "executing program\n", 18executing program
) = 18
[pid 13005] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13005] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13005] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13005] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13005] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13005] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13005] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13006 attached
 => {parent_tid=[13006]}, 88) = 13006
[pid 13006] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13005] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13006] <... set_robust_list resumed>) = 0
[pid 13005] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13006] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13005] <... futex resumed>)        = 0
[pid 13006] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13005] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13006] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13006] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13005] <... futex resumed>)        = 0
[pid 13005] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13005] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13006] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13006] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13005] <... futex resumed>)        = 0
[pid 13005] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13005] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13006] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13006] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13005] <... futex resumed>)        = 0
[pid 13005] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13005] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13006] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13006] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13005] <... futex resumed>)        = 0
[pid 13005] exit_group(0)               = ?
[pid 13006] +++ exited with 0 +++
[pid 13005] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13005, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13007
./strace-static-x86_64: Process 13007 attached
[pid 13007] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13007] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13007] setpgid(0, 0)               = 0
[pid 13007] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13007] write(3, "1000", 4)         = 4
[pid 13007] close(3)                    = 0
executing program
[pid 13007] write(1, "executing program\n", 18) = 18
[pid 13007] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13007] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13007] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13007] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13007] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13007] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13007] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13008]}, 88) = 13008
[pid 13007] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13007] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13007] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 13008 attached
 <unfinished ...>
[pid 13008] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13008] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13008] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13008] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13007] <... futex resumed>)        = 0
[pid 13007] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13007] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13008] <... futex resumed>)        = 1
[pid 13008] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13008] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13007] <... futex resumed>)        = 0
[pid 13007] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13007] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13008] <... futex resumed>)        = 1
[pid 13008] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13008] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13007] <... futex resumed>)        = 0
[pid 13007] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13007] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13008] <... futex resumed>)        = 1
[pid 13008] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13008] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13007] <... futex resumed>)        = 0
[pid 13007] exit_group(0)               = ?
[pid 13008] +++ exited with 0 +++
[pid 13007] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13007, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13009
./strace-static-x86_64: Process 13009 attached
[pid 13009] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13009] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13009] setpgid(0, 0)               = 0
[pid 13009] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13009] write(3, "1000", 4)         = 4
[pid 13009] close(3)                    = 0
[pid 13009] write(1, "executing program\n", 18executing program
) = 18
[pid 13009] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13009] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13009] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13009] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13009] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13009] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13009] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13010]}, 88) = 13010
[pid 13009] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13009] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13009] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 13010 attached
 <unfinished ...>
[pid 13010] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13010] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13010] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13010] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13009] <... futex resumed>)        = 0
[pid 13009] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13009] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13010] <... futex resumed>)        = 1
[pid 13010] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13010] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13009] <... futex resumed>)        = 0
[pid 13009] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13009] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13010] <... futex resumed>)        = 1
[pid 13010] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13010] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13009] <... futex resumed>)        = 0
[pid 13009] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13009] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13010] <... futex resumed>)        = 1
[pid 13010] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13010] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13009] <... futex resumed>)        = 0
[pid 13009] exit_group(0)               = ?
[pid 13010] <... futex resumed>)        = ?
[pid 13010] +++ exited with 0 +++
[pid 13009] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13009, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13011
./strace-static-x86_64: Process 13011 attached
[pid 13011] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13011] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13011] setpgid(0, 0)               = 0
[pid 13011] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13011] write(3, "1000", 4)         = 4
[pid 13011] close(3)                    = 0
[pid 13011] write(1, "executing program\n", 18executing program
) = 18
[pid 13011] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13011] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13011] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13011] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13011] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13011] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13011] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13012 attached
 => {parent_tid=[13012]}, 88) = 13012
[pid 13012] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13012] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13012] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13011] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13011] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13012] <... futex resumed>)        = 0
[pid 13011] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13012] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13012] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13012] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13011] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13011] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13012] <... futex resumed>)        = 0
[pid 13012] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13012] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13012] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13011] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13011] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13012] <... futex resumed>)        = 0
[pid 13012] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 13011] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13012] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 13012] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13012] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13011] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13011] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13012] <... futex resumed>)        = 0
[pid 13012] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13012] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13012] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13011] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13011] exit_group(0)               = ?
[pid 13012] <... futex resumed>)        = ?
[pid 13012] +++ exited with 0 +++
[pid 13011] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13011, 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=0x55558842d690) = 13013
./strace-static-x86_64: Process 13013 attached
[pid 13013] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13013] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13013] setpgid(0, 0)               = 0
[pid 13013] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13013] write(3, "1000", 4)         = 4
[pid 13013] close(3)                    = 0
[pid 13013] write(1, "executing program\n", 18executing program
) = 18
[pid 13013] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13013] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13013] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13013] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13013] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13013] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13013] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13014 attached
 => {parent_tid=[13014]}, 88) = 13014
[pid 13014] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13014] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13014] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13013] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13013] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13014] <... futex resumed>)        = 0
[pid 13013] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13014] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13014] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13014] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13013] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13013] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13014] <... futex resumed>)        = 0
[pid 13014] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13014] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13014] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13013] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13013] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13014] <... futex resumed>)        = 0
[pid 13014] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13014] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13013] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13014] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13013] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13013] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13014] <... futex resumed>)        = 0
[pid 13014] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13013] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13014] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13014] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13014] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13013] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13013] exit_group(0)               = ?
[pid 13014] <... futex resumed>)        = ?
[pid 13014] +++ exited with 0 +++
[pid 13013] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13013, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13015
./strace-static-x86_64: Process 13015 attached
[pid 13015] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13015] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13015] setpgid(0, 0)               = 0
[pid 13015] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13015] write(3, "1000", 4)         = 4
[pid 13015] close(3)                    = 0
executing program
[pid 13015] write(1, "executing program\n", 18) = 18
[pid 13015] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13015] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13015] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13015] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13015] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13015] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13015] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13016]}, 88) = 13016
./strace-static-x86_64: Process 13016 attached
[pid 13016] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13016] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13016] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13015] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13015] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13016] <... futex resumed>)        = 0
[pid 13015] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13016] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13016] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13016] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13015] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13015] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13016] <... futex resumed>)        = 0
[pid 13016] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 13015] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13016] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 13016] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13016] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13015] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13015] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13016] <... futex resumed>)        = 0
[pid 13016] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13016] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13016] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13015] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13015] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13016] <... futex resumed>)        = 0
[pid 13016] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13015] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13016] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13016] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13016] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13015] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13015] exit_group(0)               = ?
[pid 13016] <... futex resumed>)        = ?
[pid 13016] +++ exited with 0 +++
[pid 13015] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13015, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13017
./strace-static-x86_64: Process 13017 attached
[pid 13017] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13017] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13017] setpgid(0, 0)               = 0
[pid 13017] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13017] write(3, "1000", 4)         = 4
[pid 13017] close(3)                    = 0
executing program
[pid 13017] write(1, "executing program\n", 18) = 18
[pid 13017] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13017] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13017] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13017] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13017] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13017] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13017] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13018]}, 88) = 13018
./strace-static-x86_64: Process 13018 attached
[pid 13017] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13018] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13017] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13017] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13017] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13018] <... set_robust_list resumed>) = 0
[pid 13018] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13018] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13018] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13017] <... futex resumed>)        = 0
[pid 13017] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13017] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13018] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13018] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13017] <... futex resumed>)        = 0
[pid 13017] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13017] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13018] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13018] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13017] <... futex resumed>)        = 0
[pid 13017] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13017] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13018] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13018] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13017] <... futex resumed>)        = 0
[pid 13017] exit_group(0)               = ?
[pid 13018] +++ exited with 0 +++
[pid 13017] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13017, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13019
./strace-static-x86_64: Process 13019 attached
[pid 13019] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13019] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13019] setpgid(0, 0)               = 0
[pid 13019] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13019] write(3, "1000", 4)         = 4
[pid 13019] close(3)                    = 0
[pid 13019] write(1, "executing program\n", 18executing program
) = 18
[pid 13019] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13019] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13019] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13019] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13019] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13019] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13019] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13020 attached
 => {parent_tid=[13020]}, 88) = 13020
[pid 13020] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13020] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13020] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13019] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13019] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13020] <... futex resumed>)        = 0
[pid 13020] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13019] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13020] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13020] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13019] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13019] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13020] <... futex resumed>)        = 0
[pid 13020] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13019] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13020] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13019] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13019] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13019] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13020] <... futex resumed>)        = 1
[pid 13019] <... futex resumed>)        = 0
[pid 13019] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13020] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13020] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13019] <... futex resumed>)        = 0
[pid 13019] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13019] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13020] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13020] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13020] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13019] <... futex resumed>)        = 0
[pid 13019] exit_group(0)               = ?
[pid 13020] <... futex resumed>)        = ?
[pid 13020] +++ exited with 0 +++
[pid 13019] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13019, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13021
./strace-static-x86_64: Process 13021 attached
[pid 13021] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13021] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13021] setpgid(0, 0)               = 0
[pid 13021] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13021] write(3, "1000", 4)         = 4
[pid 13021] close(3)                    = 0
[pid 13021] write(1, "executing program\n", 18executing program
) = 18
[pid 13021] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13021] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13021] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13021] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13021] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13021] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13021] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13022 attached
 => {parent_tid=[13022]}, 88) = 13022
[pid 13022] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13022] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13022] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13021] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13021] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13022] <... futex resumed>)        = 0
[pid 13022] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13022] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13022] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13021] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13021] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13022] <... futex resumed>)        = 0
[pid 13022] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13022] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13022] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13021] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13021] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13022] <... futex resumed>)        = 0
[pid 13022] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13022] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13022] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13021] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13021] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13022] <... futex resumed>)        = 0
[pid 13022] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13022] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13022] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13021] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13021] exit_group(0)               = ?
[pid 13022] <... futex resumed>)        = ?
[pid 13022] +++ exited with 0 +++
[pid 13021] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13021, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13023
./strace-static-x86_64: Process 13023 attached
[pid 13023] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13023] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13023] setpgid(0, 0)               = 0
[pid 13023] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13023] write(3, "1000", 4)         = 4
[pid 13023] close(3)                    = 0
[pid 13023] write(1, "executing program\n", 18executing program
) = 18
[pid 13023] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13023] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13023] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13023] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13023] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13023] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13023] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13024]}, 88) = 13024
[pid 13023] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13023] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13023] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 13024 attached
 <unfinished ...>
[pid 13024] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13024] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13024] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13024] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13023] <... futex resumed>)        = 0
[pid 13024] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 13023] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13024] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 13023] <... futex resumed>)        = 0
[pid 13023] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13024] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13023] <... futex resumed>)        = 0
[pid 13023] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13023] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13024] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13024] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13023] <... futex resumed>)        = 0
[pid 13023] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13023] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13024] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13024] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13023] <... futex resumed>)        = 0
[pid 13023] exit_group(0)               = ?
[pid 13024] +++ exited with 0 +++
[pid 13023] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13023, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13025
./strace-static-x86_64: Process 13025 attached
[pid 13025] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13025] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13025] setpgid(0, 0)               = 0
[pid 13025] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13025] write(3, "1000", 4)         = 4
[pid 13025] close(3executing program
)                    = 0
[pid 13025] write(1, "executing program\n", 18) = 18
[pid 13025] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13025] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13025] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13025] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13025] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13025] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13025] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13026]}, 88) = 13026
[pid 13025] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13025] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13025] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 13026 attached
 <unfinished ...>
[pid 13026] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13026] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13026] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13026] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13025] <... futex resumed>)        = 0
[pid 13025] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13025] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13026] <... futex resumed>)        = 1
[pid 13026] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13026] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13025] <... futex resumed>)        = 0
[pid 13025] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13025] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13026] <... futex resumed>)        = 1
[pid 13026] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13026] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13025] <... futex resumed>)        = 0
[pid 13025] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13025] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13026] <... futex resumed>)        = 1
[pid 13026] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13026] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13025] <... futex resumed>)        = 0
[pid 13025] exit_group(0)               = ?
[pid 13026] <... futex resumed>)        = ?
[pid 13026] +++ exited with 0 +++
[pid 13025] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13025, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13027
./strace-static-x86_64: Process 13027 attached
[pid 13027] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13027] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13027] setpgid(0, 0)               = 0
[pid 13027] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13027] write(3, "1000", 4)         = 4
[pid 13027] close(3)                    = 0
[pid 13027] write(1, "executing program\n", 18executing program
) = 18
[pid 13027] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13027] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13027] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13027] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13027] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13027] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13027] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13028 attached
 => {parent_tid=[13028]}, 88) = 13028
[pid 13027] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13027] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13027] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13028] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13028] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13028] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13028] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13027] <... futex resumed>)        = 0
[pid 13027] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13027] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13028] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13028] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13027] <... futex resumed>)        = 0
[pid 13027] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13027] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13028] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13028] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13027] <... futex resumed>)        = 0
[pid 13028] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13027] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13028] <... futex resumed>)        = 0
[pid 13028] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13027] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13028] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13028] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13028] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13027] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13027] exit_group(0)               = ?
[pid 13028] <... futex resumed>)        = ?
[pid 13028] +++ exited with 0 +++
[pid 13027] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13027, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13029
./strace-static-x86_64: Process 13029 attached
[pid 13029] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13029] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13029] setpgid(0, 0)               = 0
[pid 13029] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13029] write(3, "1000", 4)         = 4
[pid 13029] close(3)                    = 0
[pid 13029] write(1, "executing program\n", 18executing program
) = 18
[pid 13029] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13029] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13029] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13029] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13029] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13029] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13029] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13030 attached
 => {parent_tid=[13030]}, 88) = 13030
[pid 13030] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13030] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13030] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13029] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13029] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13030] <... futex resumed>)        = 0
[pid 13029] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13030] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13030] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13030] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13029] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13029] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13030] <... futex resumed>)        = 0
[pid 13029] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13030] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13030] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13030] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13029] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13029] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13030] <... futex resumed>)        = 0
[pid 13030] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13030] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13030] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13029] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13029] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13030] <... futex resumed>)        = 0
[pid 13030] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13029] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13030] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13030] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13030] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13029] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13029] exit_group(0)               = ?
[pid 13030] <... futex resumed>)        = ?
[pid 13030] +++ exited with 0 +++
[pid 13029] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13029, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13031
./strace-static-x86_64: Process 13031 attached
[pid 13031] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13031] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13031] setpgid(0, 0)               = 0
[pid 13031] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13031] write(3, "1000", 4)         = 4
[pid 13031] close(3)                    = 0
[pid 13031] write(1, "executing program\n", 18executing program
) = 18
[pid 13031] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13031] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13031] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13031] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13031] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13031] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13031] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13032 attached
 => {parent_tid=[13032]}, 88) = 13032
[pid 13031] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13031] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13031] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13032] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13032] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13032] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13032] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13031] <... futex resumed>)        = 0
[pid 13031] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13031] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13032] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13032] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13031] <... futex resumed>)        = 0
[pid 13031] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13031] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13032] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13032] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13031] <... futex resumed>)        = 0
[pid 13031] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13031] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13032] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13032] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13031] <... futex resumed>)        = 0
[pid 13031] exit_group(0)               = ?
[pid 13032] +++ exited with 0 +++
[pid 13031] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13031, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13033
./strace-static-x86_64: Process 13033 attached
[pid 13033] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13033] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13033] setpgid(0, 0)               = 0
[pid 13033] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13033] write(3, "1000", 4)         = 4
[pid 13033] close(3)                    = 0
[pid 13033] write(1, "executing program\n", 18executing program
) = 18
[pid 13033] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13033] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13033] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13033] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13033] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13033] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13033] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13034 attached
 => {parent_tid=[13034]}, 88) = 13034
[pid 13034] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13034] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13034] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13033] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13033] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13034] <... futex resumed>)        = 0
[pid 13034] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 13033] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13034] <... 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 13034] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13034] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13033] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13033] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13034] <... futex resumed>)        = 0
[pid 13034] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 13033] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13034] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 13034] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13034] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13033] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13033] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13034] <... futex resumed>)        = 0
[pid 13034] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13034] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13034] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13033] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13033] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13034] <... futex resumed>)        = 0
[pid 13034] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13034] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13034] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13033] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13033] exit_group(0)               = ?
[pid 13034] <... futex resumed>)        = ?
[pid 13034] +++ exited with 0 +++
[pid 13033] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13033, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13035
./strace-static-x86_64: Process 13035 attached
[pid 13035] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13035] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13035] setpgid(0, 0)               = 0
[pid 13035] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13035] write(3, "1000", 4)         = 4
[pid 13035] close(3)                    = 0
[pid 13035] write(1, "executing program\n", 18executing program
) = 18
[pid 13035] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13035] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13035] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13035] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13035] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13035] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13035] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13036 attached
 => {parent_tid=[13036]}, 88) = 13036
[pid 13036] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13036] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13036] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13035] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13035] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13036] <... futex resumed>)        = 0
[pid 13036] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 13035] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13036] <... 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 13036] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13036] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13035] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13035] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13036] <... futex resumed>)        = 0
[pid 13036] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13035] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13036] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13036] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13035] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13035] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13036] <... futex resumed>)        = 0
[pid 13036] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13036] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13035] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13036] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13035] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13035] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13036] <... futex resumed>)        = 0
[pid 13036] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13035] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13036] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13036] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13035] <... futex resumed>)        = 0
[pid 13035] exit_group(0)               = ?
[pid 13036] +++ exited with 0 +++
[pid 13035] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13035, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13037
./strace-static-x86_64: Process 13037 attached
[pid 13037] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13037] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13037] setpgid(0, 0)               = 0
[pid 13037] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13037] write(3, "1000", 4)         = 4
[pid 13037] close(3)                    = 0
[pid 13037] write(1, "executing program\n", 18executing program
) = 18
[pid 13037] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13037] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13037] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13037] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13037] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13037] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13037] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13038 attached
 => {parent_tid=[13038]}, 88) = 13038
[pid 13038] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13038] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13037] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13038] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13037] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13037] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13038] <... futex resumed>)        = 0
[pid 13038] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13038] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13038] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13037] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13037] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13038] <... futex resumed>)        = 0
[pid 13038] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13038] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13037] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13038] <... futex resumed>)        = 0
[pid 13038] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13037] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13037] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13038] <... futex resumed>)        = 0
[pid 13038] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13038] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13038] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13037] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13037] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13038] <... futex resumed>)        = 0
[pid 13037] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13038] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13038] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13037] <... futex resumed>)        = 0
[pid 13038] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13037] exit_group(0)               = ?
[pid 13038] <... futex resumed>)        = ?
[pid 13038] +++ exited with 0 +++
[pid 13037] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13037, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13039
./strace-static-x86_64: Process 13039 attached
[pid 13039] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13039] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13039] setpgid(0, 0)               = 0
[pid 13039] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13039] write(3, "1000", 4)         = 4
[pid 13039] close(3)                    = 0
[pid 13039] write(1, "executing program\n", 18executing program
) = 18
[pid 13039] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13039] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13039] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13039] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13039] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13039] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13039] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13040]}, 88) = 13040
./strace-static-x86_64: Process 13040 attached
[pid 13039] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13040] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13040] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13040] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13039] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13039] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13040] <... futex resumed>)        = 0
[pid 13040] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13040] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13040] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13039] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13039] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13040] <... futex resumed>)        = 0
[pid 13040] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13039] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13040] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13040] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13039] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13039] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13040] <... futex resumed>)        = 0
[pid 13040] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13040] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13040] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13039] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13039] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13040] <... futex resumed>)        = 0
[pid 13039] <... futex resumed>)        = 1
[pid 13039] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13040] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13040] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13039] <... futex resumed>)        = 0
[pid 13039] exit_group(0)               = ?
[pid 13040] <... futex resumed>)        = ?
[pid 13040] +++ exited with 0 +++
[pid 13039] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13039, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13041
./strace-static-x86_64: Process 13041 attached
[pid 13041] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13041] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13041] setpgid(0, 0)               = 0
[pid 13041] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13041] write(3, "1000", 4)         = 4
[pid 13041] close(3)                    = 0
[pid 13041] write(1, "executing program\n", 18executing program
) = 18
[pid 13041] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13041] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13041] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13041] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13041] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13041] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13041] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13042 attached
 <unfinished ...>
[pid 13042] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13042] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13042] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13041] <... clone3 resumed> => {parent_tid=[13042]}, 88) = 13042
[pid 13041] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13041] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13042] <... futex resumed>)        = 0
[pid 13042] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13042] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13042] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13041] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13041] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13042] <... futex resumed>)        = 0
[pid 13042] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13042] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13042] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13041] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13041] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13042] <... futex resumed>)        = 0
[pid 13042] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13042] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13042] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13041] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13041] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13042] <... futex resumed>)        = 0
[pid 13042] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13041] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13042] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13042] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13042] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13041] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13041] exit_group(0)               = ?
[pid 13042] <... futex resumed>)        = ?
[pid 13042] +++ exited with 0 +++
[pid 13041] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13041, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13043
./strace-static-x86_64: Process 13043 attached
[pid 13043] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13043] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13043] setpgid(0, 0)               = 0
[pid 13043] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13043] write(3, "1000", 4)         = 4
[pid 13043] close(3)                    = 0
[pid 13043] write(1, "executing program\n", 18executing program
) = 18
[pid 13043] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13043] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13043] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13043] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13043] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13043] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13043] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13044]}, 88) = 13044
[pid 13043] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13043] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13043] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 13044 attached
 <unfinished ...>
[pid 13044] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13044] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13044] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13044] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13043] <... futex resumed>)        = 0
[pid 13043] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13043] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13044] <... futex resumed>)        = 1
[pid 13044] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13044] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13043] <... futex resumed>)        = 0
[pid 13043] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13043] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13044] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13044] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13043] <... futex resumed>)        = 0
[pid 13043] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13044] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13043] <... futex resumed>)        = 0
[pid 13043] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13044] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13044] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13043] <... futex resumed>)        = 0
[pid 13043] exit_group(0)               = ?
[pid 13044] +++ exited with 0 +++
[pid 13043] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13043, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13045
./strace-static-x86_64: Process 13045 attached
[pid 13045] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13045] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13045] setpgid(0, 0)               = 0
[pid 13045] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13045] write(3, "1000", 4)         = 4
[pid 13045] close(3)                    = 0
executing program
[pid 13045] write(1, "executing program\n", 18) = 18
[pid 13045] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13045] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13045] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13045] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13045] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13045] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13045] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13046 attached
 => {parent_tid=[13046]}, 88) = 13046
[pid 13046] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13045] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13046] <... set_robust_list resumed>) = 0
[pid 13046] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13046] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13045] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13045] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13046] <... futex resumed>)        = 0
[pid 13046] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13045] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13046] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13046] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13045] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13045] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13046] <... futex resumed>)        = 0
[pid 13046] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13046] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13045] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13046] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13045] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13045] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13046] <... futex resumed>)        = 0
[pid 13046] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13046] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13046] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13045] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13045] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13046] <... futex resumed>)        = 0
[pid 13046] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13045] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13046] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13046] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13046] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13045] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13045] exit_group(0)               = ?
[pid 13046] <... futex resumed>)        = ?
[pid 13046] +++ exited with 0 +++
[pid 13045] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13045, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13047
./strace-static-x86_64: Process 13047 attached
[pid 13047] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13047] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13047] setpgid(0, 0)               = 0
[pid 13047] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13047] write(3, "1000", 4)         = 4
[pid 13047] close(3)                    = 0
[pid 13047] write(1, "executing program\n", 18executing program
) = 18
[pid 13047] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13047] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13047] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13047] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13047] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13047] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13047] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13048 attached
 <unfinished ...>
[pid 13048] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13048] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13048] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13047] <... clone3 resumed> => {parent_tid=[13048]}, 88) = 13048
[pid 13047] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13047] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13048] <... futex resumed>)        = 0
[pid 13048] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13048] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13048] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13047] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13047] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13048] <... futex resumed>)        = 0
[pid 13048] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13048] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13048] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13047] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13047] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13048] <... futex resumed>)        = 0
[pid 13048] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13048] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13048] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13047] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13047] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13048] <... futex resumed>)        = 0
[pid 13048] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13048] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13048] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13047] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13047] exit_group(0)               = ?
[pid 13048] <... futex resumed>)        = ?
[pid 13048] +++ exited with 0 +++
[pid 13047] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13047, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13049
./strace-static-x86_64: Process 13049 attached
[pid 13049] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13049] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13049] setpgid(0, 0)               = 0
[pid 13049] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13049] write(3, "1000", 4)         = 4
[pid 13049] close(3)                    = 0
[pid 13049] write(1, "executing program\n", 18executing program
) = 18
[pid 13049] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13049] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13049] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13049] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13049] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13049] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13049] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13050 attached
 => {parent_tid=[13050]}, 88) = 13050
[pid 13050] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13050] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13050] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13049] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13049] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13050] <... futex resumed>)        = 0
[pid 13050] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13050] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13050] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13049] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13049] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13050] <... futex resumed>)        = 0
[pid 13050] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13050] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13050] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13049] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13049] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13050] <... futex resumed>)        = 0
[pid 13050] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13050] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13050] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13049] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13049] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13050] <... futex resumed>)        = 0
[pid 13050] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13050] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13050] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13049] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13049] exit_group(0)               = ?
[pid 13050] <... futex resumed>)        = ?
[pid 13050] +++ exited with 0 +++
[pid 13049] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13049, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13051
./strace-static-x86_64: Process 13051 attached
[pid 13051] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13051] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13051] setpgid(0, 0)               = 0
[pid 13051] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13051] write(3, "1000", 4)         = 4
[pid 13051] close(3)                    = 0
[pid 13051] write(1, "executing program\n", 18executing program
) = 18
[pid 13051] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13051] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13051] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13051] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13051] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13051] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13051] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13052]}, 88) = 13052
[pid 13051] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13051] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13051] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 13052 attached
 <unfinished ...>
[pid 13052] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13052] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13052] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13052] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13051] <... futex resumed>)        = 0
[pid 13051] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13051] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13052] <... futex resumed>)        = 1
[pid 13052] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13052] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13051] <... futex resumed>)        = 0
[pid 13051] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13051] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13052] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13052] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13051] <... futex resumed>)        = 0
[pid 13051] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13051] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13052] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13052] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13051] <... futex resumed>)        = 0
[pid 13051] exit_group(0)               = ?
[pid 13052] +++ exited with 0 +++
[pid 13051] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13051, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13053
./strace-static-x86_64: Process 13053 attached
[pid 13053] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13053] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13053] setpgid(0, 0)               = 0
[pid 13053] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13053] write(3, "1000", 4)         = 4
[pid 13053] close(3)                    = 0
[pid 13053] write(1, "executing program\n", 18executing program
) = 18
[pid 13053] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13053] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13053] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13053] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13053] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13053] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13053] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13054 attached
 <unfinished ...>
[pid 13054] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13053] <... clone3 resumed> => {parent_tid=[13054]}, 88) = 13054
[pid 13054] <... set_robust_list resumed>) = 0
[pid 13053] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13054] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13053] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13054] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13053] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13053] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13054] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13054] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13053] <... futex resumed>)        = 0
[pid 13054] <... futex resumed>)        = 1
[pid 13053] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13054] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 13053] <... futex resumed>)        = 0
[pid 13053] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13054] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 13054] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13053] <... futex resumed>)        = 0
[pid 13053] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13053] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13054] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13054] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13053] <... futex resumed>)        = 0
[pid 13053] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13053] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13054] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13054] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13053] <... futex resumed>)        = 0
[pid 13054] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13053] exit_group(0)               = ?
[pid 13054] <... futex resumed>)        = ?
[pid 13054] +++ exited with 0 +++
[pid 13053] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13053, si_uid=0, si_status=0, 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 13055 attached
, child_tidptr=0x55558842d690) = 13055
[pid 13055] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13055] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13055] setpgid(0, 0)               = 0
[pid 13055] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13055] write(3, "1000", 4)         = 4
[pid 13055] close(3)                    = 0
[pid 13055] write(1, "executing program\n", 18executing program
) = 18
[pid 13055] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13055] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13055] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13055] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13055] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13055] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13055] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13056 attached
 => {parent_tid=[13056]}, 88) = 13056
[pid 13056] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13056] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13056] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13055] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13055] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13056] <... futex resumed>)        = 0
[pid 13056] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13056] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13056] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13055] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13055] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13056] <... futex resumed>)        = 0
[pid 13055] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13056] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13056] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13055] <... futex resumed>)        = 0
[pid 13056] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 13055] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13055] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13056] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 13056] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13055] <... futex resumed>)        = 0
[pid 13055] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13055] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13056] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13056] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13055] <... futex resumed>)        = 0
[pid 13056] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13055] exit_group(0)               = ?
[pid 13056] <... futex resumed>)        = ?
[pid 13056] +++ exited with 0 +++
[pid 13055] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13055, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13057
./strace-static-x86_64: Process 13057 attached
[pid 13057] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13057] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13057] setpgid(0, 0)               = 0
[pid 13057] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13057] write(3, "1000", 4)         = 4
[pid 13057] close(3)                    = 0
[pid 13057] write(1, "executing program\n", 18executing program
) = 18
[pid 13057] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13057] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13057] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13057] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13057] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13057] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13057] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13058 attached
 <unfinished ...>
[pid 13058] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13058] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13058] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13057] <... clone3 resumed> => {parent_tid=[13058]}, 88) = 13058
[pid 13057] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13057] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13058] <... futex resumed>)        = 0
[pid 13058] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13058] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13058] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13057] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13057] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13058] <... futex resumed>)        = 0
[pid 13058] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13058] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13058] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13057] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13057] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13058] <... futex resumed>)        = 0
[pid 13058] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13058] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13058] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13057] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13057] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13058] <... futex resumed>)        = 0
[pid 13058] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13058] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13058] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13057] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13057] exit_group(0)               = ?
[pid 13058] <... futex resumed>)        = ?
[pid 13058] +++ exited with 0 +++
[pid 13057] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13057, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13059
./strace-static-x86_64: Process 13059 attached
[pid 13059] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13059] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13059] setpgid(0, 0)               = 0
[pid 13059] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13059] write(3, "1000", 4)         = 4
[pid 13059] close(3)                    = 0
[pid 13059] write(1, "executing program\n", 18executing program
) = 18
[pid 13059] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13059] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13059] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13059] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13059] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13059] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13059] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13060 attached
 <unfinished ...>
[pid 13060] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13060] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13060] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13059] <... clone3 resumed> => {parent_tid=[13060]}, 88) = 13060
[pid 13059] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13059] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13060] <... futex resumed>)        = 0
[pid 13060] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13060] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13060] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13059] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13059] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13060] <... futex resumed>)        = 0
[pid 13060] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13060] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13060] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13059] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13059] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13060] <... futex resumed>)        = 0
[pid 13060] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13059] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13060] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13059] <... futex resumed>)        = 0
[pid 13059] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13059] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13060] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13060] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13059] <... futex resumed>)        = 0
[pid 13059] exit_group(0)               = ?
[pid 13060] +++ exited with 0 +++
[pid 13059] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13059, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13061
./strace-static-x86_64: Process 13061 attached
[pid 13061] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13061] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13061] setpgid(0, 0)               = 0
[pid 13061] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13061] write(3, "1000", 4)         = 4
[pid 13061] close(3)                    = 0
[pid 13061] write(1, "executing program\n", 18executing program
) = 18
[pid 13061] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13061] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13061] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13061] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13061] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13061] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13061] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13062 attached
 => {parent_tid=[13062]}, 88) = 13062
[pid 13062] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13062] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13062] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13061] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13061] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13062] <... futex resumed>)        = 0
[pid 13061] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13062] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13062] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13062] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13061] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13061] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13062] <... futex resumed>)        = 0
[pid 13062] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13062] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13062] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13061] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13061] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13062] <... futex resumed>)        = 0
[pid 13062] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 13061] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13062] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 13062] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13062] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13061] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13061] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13062] <... futex resumed>)        = 0
[pid 13062] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13061] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13062] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13062] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13062] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13061] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13061] exit_group(0)               = ?
[pid 13062] <... futex resumed>)        = ?
[pid 13062] +++ exited with 0 +++
[pid 13061] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13061, si_uid=0, si_status=0, 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 13063 attached
 <unfinished ...>
[pid 13063] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13063] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   555] <... clone resumed>, child_tidptr=0x55558842d690) = 13063
[pid 13063] <... prctl resumed>)        = 0
[pid 13063] setpgid(0, 0)               = 0
[pid 13063] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13063] write(3, "1000", 4)         = 4
executing program
[pid 13063] close(3)                    = 0
[pid 13063] write(1, "executing program\n", 18) = 18
[pid 13063] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13063] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13063] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13063] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13063] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13063] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13063] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13064]}, 88) = 13064
[pid 13063] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13063] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13063] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 13064 attached
 <unfinished ...>
[pid 13064] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13064] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13064] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13064] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13063] <... futex resumed>)        = 0
[pid 13063] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13063] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13064] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13064] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13063] <... futex resumed>)        = 0
[pid 13063] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13063] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13064] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13064] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13063] <... futex resumed>)        = 0
[pid 13063] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13063] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13064] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13064] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13063] <... futex resumed>)        = 0
[pid 13063] exit_group(0)               = ?
[pid 13064] +++ exited with 0 +++
[pid 13063] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13063, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13065
./strace-static-x86_64: Process 13065 attached
[pid 13065] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13065] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13065] setpgid(0, 0)               = 0
[pid 13065] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13065] write(3, "1000", 4)         = 4
[pid 13065] close(3)                    = 0
[pid 13065] write(1, "executing program\n", 18executing program
) = 18
[pid 13065] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13065] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13065] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13065] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13065] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13065] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13065] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13066 attached
 <unfinished ...>
[pid 13066] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13066] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13066] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13065] <... clone3 resumed> => {parent_tid=[13066]}, 88) = 13066
[pid 13065] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13065] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13066] <... futex resumed>)        = 0
[pid 13066] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13066] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13066] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13065] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13065] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13066] <... futex resumed>)        = 0
[pid 13066] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13066] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13066] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13065] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13065] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13066] <... futex resumed>)        = 0
[pid 13066] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13066] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13066] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13065] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13065] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13066] <... futex resumed>)        = 0
[pid 13066] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13065] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13066] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13066] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13066] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13065] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13065] exit_group(0)               = ?
[pid 13066] <... futex resumed>)        = ?
[pid 13066] +++ exited with 0 +++
[pid 13065] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13065, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13067
./strace-static-x86_64: Process 13067 attached
[pid 13067] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13067] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13067] setpgid(0, 0)               = 0
[pid 13067] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13067] write(3, "1000", 4)         = 4
[pid 13067] close(3executing program
)                    = 0
[pid 13067] write(1, "executing program\n", 18) = 18
[pid 13067] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13067] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13067] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13067] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13067] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13067] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13067] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13068 attached
 => {parent_tid=[13068]}, 88) = 13068
[pid 13068] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13067] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13068] <... set_robust_list resumed>) = 0
[pid 13068] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13067] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13068] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13067] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13068] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 13067] <... futex resumed>)        = 0
[pid 13067] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13068] <... 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 13068] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13068] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13067] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13067] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13068] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13067] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13068] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13068] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13067] <... futex resumed>)        = 0
[pid 13067] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13067] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13068] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13068] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13067] <... futex resumed>)        = 0
[pid 13067] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13067] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13068] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13068] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13067] <... futex resumed>)        = 0
[pid 13067] exit_group(0)               = ?
[pid 13068] +++ exited with 0 +++
[pid 13067] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13067, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13069
./strace-static-x86_64: Process 13069 attached
[pid 13069] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13069] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13069] setpgid(0, 0)               = 0
[pid 13069] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13069] write(3, "1000", 4)         = 4
[pid 13069] close(3)                    = 0
[pid 13069] write(1, "executing program\n", 18executing program
) = 18
[pid 13069] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13069] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13069] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13069] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13069] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13069] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13069] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13070 attached
 => {parent_tid=[13070]}, 88) = 13070
[pid 13070] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13070] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13070] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13069] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13069] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13070] <... futex resumed>)        = 0
[pid 13069] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13070] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13070] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13070] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13069] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13069] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13070] <... futex resumed>)        = 0
[pid 13070] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13070] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13070] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13069] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13069] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13070] <... futex resumed>)        = 0
[pid 13070] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13070] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13070] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13069] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13069] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13070] <... futex resumed>)        = 0
[pid 13069] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13070] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13070] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13069] <... futex resumed>)        = 0
[pid 13069] exit_group(0)               = ?
[pid 13070] +++ exited with 0 +++
[pid 13069] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13069, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13071
./strace-static-x86_64: Process 13071 attached
[pid 13071] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13071] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13071] setpgid(0, 0)               = 0
[pid 13071] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13071] write(3, "1000", 4)         = 4
[pid 13071] close(3)                    = 0
[pid 13071] write(1, "executing program\n", 18executing program
) = 18
[pid 13071] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13071] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13071] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13071] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13071] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13071] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13071] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13072 attached
 => {parent_tid=[13072]}, 88) = 13072
[pid 13071] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13071] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13071] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13072] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13072] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13072] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13072] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13071] <... futex resumed>)        = 0
[pid 13071] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13071] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13072] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13072] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13071] <... futex resumed>)        = 0
[pid 13071] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13071] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13072] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13072] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13071] <... futex resumed>)        = 0
[pid 13071] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13071] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13072] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13072] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13071] <... futex resumed>)        = 0
[pid 13071] exit_group(0)               = ?
[pid 13072] +++ exited with 0 +++
[pid 13071] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13071, si_uid=0, si_status=0, 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 13073 attached
, child_tidptr=0x55558842d690) = 13073
[pid 13073] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13073] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13073] setpgid(0, 0)               = 0
[pid 13073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13073] write(3, "1000", 4)         = 4
[pid 13073] close(3)                    = 0
[pid 13073] write(1, "executing program\n", 18executing program
) = 18
[pid 13073] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13073] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13073] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13073] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13073] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13073] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13073] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13074 attached
 => {parent_tid=[13074]}, 88) = 13074
[pid 13074] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13074] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13074] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13073] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13073] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13074] <... futex resumed>)        = 0
[pid 13074] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13074] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13074] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13073] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13073] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13074] <... futex resumed>)        = 0
[pid 13074] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13074] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13074] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13073] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13073] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13074] <... futex resumed>)        = 0
[pid 13074] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13074] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13074] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13073] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13073] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13074] <... futex resumed>)        = 0
[pid 13074] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13074] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13074] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13073] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13073] exit_group(0)               = ?
[pid 13074] <... futex resumed>)        = ?
[pid 13074] +++ exited with 0 +++
[pid 13073] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13073, 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 13075 attached
, child_tidptr=0x55558842d690) = 13075
[pid 13075] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13075] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13075] setpgid(0, 0)               = 0
[pid 13075] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13075] write(3, "1000", 4)         = 4
[pid 13075] close(3)                    = 0
[pid 13075] write(1, "executing program\n", 18executing program
) = 18
[pid 13075] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13075] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13075] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13075] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13075] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13075] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13075] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13076 attached
 => {parent_tid=[13076]}, 88) = 13076
[pid 13076] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13076] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13076] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13075] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13075] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13076] <... futex resumed>)        = 0
[pid 13076] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13076] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13076] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13075] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13075] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13076] <... futex resumed>)        = 0
[pid 13076] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13076] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13076] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13075] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13075] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13076] <... futex resumed>)        = 0
[pid 13076] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13076] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13076] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13075] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13075] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13076] <... futex resumed>)        = 0
[pid 13076] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13076] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13076] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13075] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13075] exit_group(0)               = ?
[pid 13076] <... futex resumed>)        = ?
[pid 13076] +++ exited with 0 +++
[pid 13075] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13075, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13077
./strace-static-x86_64: Process 13077 attached
[pid 13077] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13077] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13077] setpgid(0, 0)               = 0
[pid 13077] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13077] write(3, "1000", 4)         = 4
[pid 13077] close(3)                    = 0
[pid 13077] write(1, "executing program\n", 18executing program
) = 18
[pid 13077] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13077] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13077] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13077] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13077] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13077] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13077] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13078 attached
 => {parent_tid=[13078]}, 88) = 13078
[pid 13078] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13078] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13078] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13077] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13077] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13078] <... futex resumed>)        = 0
[pid 13077] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13078] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13078] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13078] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13077] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13077] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13078] <... futex resumed>)        = 0
[pid 13078] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13078] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13078] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13077] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13077] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13078] <... futex resumed>)        = 0
[pid 13077] <... futex resumed>)        = 1
[pid 13078] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13078] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13078] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13077] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13077] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13078] <... futex resumed>)        = 0
[pid 13078] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13078] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13078] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13077] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13077] exit_group(0)               = ?
[pid 13078] <... futex resumed>)        = ?
[pid 13078] +++ exited with 0 +++
[pid 13077] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13077, si_uid=0, si_status=0, 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 13079 attached
, child_tidptr=0x55558842d690) = 13079
[pid 13079] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13079] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13079] setpgid(0, 0)               = 0
[pid 13079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13079] write(3, "1000", 4)         = 4
[pid 13079] close(3executing program
)                    = 0
[pid 13079] write(1, "executing program\n", 18) = 18
[pid 13079] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13079] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13079] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13079] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13079] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13079] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13079] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13080 attached
 => {parent_tid=[13080]}, 88) = 13080
[pid 13080] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13080] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13080] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13079] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13079] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13080] <... futex resumed>)        = 0
[pid 13080] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13080] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13080] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13079] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13079] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13080] <... futex resumed>)        = 0
[pid 13080] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13080] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13080] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13079] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13079] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13080] <... futex resumed>)        = 0
[pid 13080] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13080] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13080] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13079] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13079] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13080] <... futex resumed>)        = 0
[pid 13080] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13080] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13080] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13079] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13079] exit_group(0)               = ?
[pid 13080] <... futex resumed>)        = ?
[pid 13080] +++ exited with 0 +++
[pid 13079] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13079, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13081
./strace-static-x86_64: Process 13081 attached
[pid 13081] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13081] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13081] setpgid(0, 0)               = 0
[pid 13081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13081] write(3, "1000", 4)         = 4
[pid 13081] close(3)                    = 0
[pid 13081] write(1, "executing program\n", 18executing program
) = 18
[pid 13081] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13081] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13081] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13081] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13081] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13081] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13081] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13082 attached
 => {parent_tid=[13082]}, 88) = 13082
[pid 13082] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13082] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13082] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13081] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13081] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13082] <... futex resumed>)        = 0
[pid 13082] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13082] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13082] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13081] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13081] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13082] <... futex resumed>)        = 0
[pid 13082] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13082] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13082] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13081] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13081] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13082] <... futex resumed>)        = 0
[pid 13082] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13082] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13082] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13081] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13081] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13082] <... futex resumed>)        = 0
[pid 13082] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13081] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13082] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13082] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13082] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13081] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13081] exit_group(0)               = ?
[pid 13082] <... futex resumed>)        = ?
[pid 13082] +++ exited with 0 +++
[pid 13081] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13081, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13083
./strace-static-x86_64: Process 13083 attached
[pid 13083] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13083] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13083] setpgid(0, 0)               = 0
[pid 13083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13083] write(3, "1000", 4)         = 4
executing program
[pid 13083] close(3)                    = 0
[pid 13083] write(1, "executing program\n", 18) = 18
[pid 13083] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13083] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13083] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13083] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13083] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13083] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13083] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13084 attached
 <unfinished ...>
[pid 13084] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13083] <... clone3 resumed> => {parent_tid=[13084]}, 88) = 13084
[pid 13083] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13084] <... set_robust_list resumed>) = 0
[pid 13083] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13084] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13083] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13084] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13083] <... futex resumed>)        = 0
[pid 13084] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 13083] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13084] <... 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 13084] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13083] <... futex resumed>)        = 0
[pid 13083] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13083] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13084] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13084] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13083] <... futex resumed>)        = 0
[pid 13083] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13083] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13084] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13084] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13083] <... futex resumed>)        = 0
[pid 13083] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13083] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13084] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13084] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13083] <... futex resumed>)        = 0
[pid 13083] exit_group(0)               = ?
[pid 13084] +++ exited with 0 +++
[pid 13083] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13083, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13085
./strace-static-x86_64: Process 13085 attached
[pid 13085] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13085] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13085] setpgid(0, 0)               = 0
[pid 13085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13085] write(3, "1000", 4)         = 4
[pid 13085] close(3)                    = 0
executing program
[pid 13085] write(1, "executing program\n", 18) = 18
[pid 13085] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13085] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13085] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13085] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13085] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13085] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13085] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13086 attached
 <unfinished ...>
[pid 13086] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13085] <... clone3 resumed> => {parent_tid=[13086]}, 88) = 13086
[pid 13086] <... set_robust_list resumed>) = 0
[pid 13085] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13086] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13085] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13086] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13085] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13086] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 13085] <... futex resumed>)        = 0
[pid 13085] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13086] <... 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 13086] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13085] <... futex resumed>)        = 0
[pid 13085] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13085] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13086] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13086] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13085] <... futex resumed>)        = 0
[pid 13085] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13085] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13086] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13086] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13085] <... futex resumed>)        = 0
[pid 13085] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13085] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13086] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13086] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13085] <... futex resumed>)        = 0
[pid 13085] exit_group(0)               = ?
[pid 13086] +++ exited with 0 +++
[pid 13085] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13085, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13087
./strace-static-x86_64: Process 13087 attached
[pid 13087] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13087] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13087] setpgid(0, 0)               = 0
[pid 13087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13087] write(3, "1000", 4)         = 4
[pid 13087] close(3executing program
)                    = 0
[pid 13087] write(1, "executing program\n", 18) = 18
[pid 13087] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13087] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13087] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13087] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13087] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13087] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13087] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13088 attached
 <unfinished ...>
[pid 13088] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13088] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13088] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13087] <... clone3 resumed> => {parent_tid=[13088]}, 88) = 13088
[pid 13087] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13087] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13088] <... futex resumed>)        = 0
[pid 13088] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 13087] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13088] <... 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 13088] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13088] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13087] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13087] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13088] <... futex resumed>)        = 0
[pid 13088] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13087] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13088] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13088] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13087] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13087] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13088] <... futex resumed>)        = 0
[pid 13088] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13088] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13088] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13087] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13087] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13088] <... futex resumed>)        = 0
[pid 13088] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13088] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13088] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13087] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13087] exit_group(0)               = ?
[pid 13088] <... futex resumed>)        = ?
[pid 13088] +++ exited with 0 +++
[pid 13087] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13087, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13089
./strace-static-x86_64: Process 13089 attached
[pid 13089] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13089] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13089] setpgid(0, 0)               = 0
[pid 13089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13089] write(3, "1000", 4)         = 4
[pid 13089] close(3)                    = 0
[pid 13089] write(1, "executing program\n", 18executing program
) = 18
[pid 13089] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13089] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13089] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13089] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13089] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13089] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13089] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13091 attached
 => {parent_tid=[13091]}, 88) = 13091
[pid 13091] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13091] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13091] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13089] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13089] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13091] <... futex resumed>)        = 0
[pid 13089] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13091] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13091] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13091] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13089] <... futex resumed>)        = 0
[pid 13089] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13091] <... futex resumed>)        = 0
[pid 13091] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 13089] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13091] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 13091] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13091] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13089] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13089] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13091] <... futex resumed>)        = 0
[pid 13089] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13091] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13091] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13091] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13089] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13089] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13091] <... futex resumed>)        = 0
[pid 13091] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13089] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13091] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13091] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13089] <... futex resumed>)        = 0
[pid 13091] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13089] exit_group(0)               = ?
[pid 13091] <... futex resumed>)        = ?
[pid 13091] +++ exited with 0 +++
[pid 13089] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13089, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13092
./strace-static-x86_64: Process 13092 attached
[pid 13092] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13092] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13092] setpgid(0, 0)               = 0
[pid 13092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13092] write(3, "1000", 4)         = 4
[pid 13092] close(3)                    = 0
[pid 13092] write(1, "executing program\n", 18executing program
) = 18
[pid 13092] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13092] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13092] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13092] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13092] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13092] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13092] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13093]}, 88) = 13093
[pid 13092] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13092] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13092] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 13093 attached
 <unfinished ...>
[pid 13093] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13093] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13093] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13093] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13092] <... futex resumed>)        = 0
[pid 13092] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13092] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13093] <... futex resumed>)        = 1
[pid 13093] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13093] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13092] <... futex resumed>)        = 0
[pid 13092] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13092] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13093] <... futex resumed>)        = 1
[pid 13093] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13093] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13092] <... futex resumed>)        = 0
[pid 13092] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13092] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13093] <... futex resumed>)        = 1
[pid 13093] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13093] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13092] <... futex resumed>)        = 0
[pid 13092] exit_group(0)               = ?
[pid 13093] <... futex resumed>)        = ?
[pid 13093] +++ exited with 0 +++
[pid 13092] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13092, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13094
./strace-static-x86_64: Process 13094 attached
[pid 13094] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13094] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13094] setpgid(0, 0)               = 0
[pid 13094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13094] write(3, "1000", 4)         = 4
[pid 13094] close(3)                    = 0
[pid 13094] write(1, "executing program\n", 18executing program
) = 18
[pid 13094] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13094] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13094] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13094] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13094] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13094] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13094] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13095 attached
 => {parent_tid=[13095]}, 88) = 13095
[pid 13095] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13095] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13095] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13094] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13094] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13095] <... futex resumed>)        = 0
[pid 13095] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13095] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13095] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13094] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13094] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13095] <... futex resumed>)        = 0
[pid 13095] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13095] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13095] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13094] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13094] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13095] <... futex resumed>)        = 0
[pid 13095] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13095] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13095] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13094] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13094] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13095] <... futex resumed>)        = 0
[pid 13095] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13094] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13095] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13095] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13095] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13094] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13094] exit_group(0)               = ?
[pid 13095] <... futex resumed>)        = ?
[pid 13095] +++ exited with 0 +++
[pid 13094] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13094, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13096
./strace-static-x86_64: Process 13096 attached
[pid 13096] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13096] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13096] setpgid(0, 0)               = 0
[pid 13096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13096] write(3, "1000", 4)         = 4
[pid 13096] close(3)                    = 0
[pid 13096] write(1, "executing program\n", 18executing program
) = 18
[pid 13096] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13096] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13096] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13096] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13096] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13096] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13096] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13097 attached
 => {parent_tid=[13097]}, 88) = 13097
[pid 13097] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13097] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13097] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13096] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13096] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13097] <... futex resumed>)        = 0
[pid 13096] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13097] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13097] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13097] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13096] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13096] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13097] <... futex resumed>)        = 0
[pid 13097] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13097] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13097] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13096] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13096] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13097] <... futex resumed>)        = 0
[pid 13097] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13097] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13097] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13096] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13096] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13097] <... futex resumed>)        = 0
[pid 13096] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13097] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13097] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13097] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13096] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13096] exit_group(0)               = ?
[pid 13097] <... futex resumed>)        = ?
[pid 13097] +++ exited with 0 +++
[pid 13096] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13096, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13098
./strace-static-x86_64: Process 13098 attached
[pid 13098] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13098] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13098] setpgid(0, 0)               = 0
[pid 13098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13098] write(3, "1000", 4executing program
)         = 4
[pid 13098] close(3)                    = 0
[pid 13098] write(1, "executing program\n", 18) = 18
[pid 13098] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13098] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13098] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13098] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13098] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13098] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13098] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13099 attached
 => {parent_tid=[13099]}, 88) = 13099
[pid 13098] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13098] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13098] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13099] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13099] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13099] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13099] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13098] <... futex resumed>)        = 0
[pid 13098] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13098] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13099] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13099] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13098] <... futex resumed>)        = 0
[pid 13098] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13098] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13099] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13099] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13098] <... futex resumed>)        = 0
[pid 13098] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13098] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13099] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13099] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13098] <... futex resumed>)        = 0
[pid 13098] exit_group(0)               = ?
[pid 13099] +++ exited with 0 +++
[pid 13098] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13098, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13100
./strace-static-x86_64: Process 13100 attached
[pid 13100] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13100] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13100] setpgid(0, 0)               = 0
[pid 13100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13100] write(3, "1000", 4executing program
)         = 4
[pid 13100] close(3)                    = 0
[pid 13100] write(1, "executing program\n", 18) = 18
[pid 13100] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13100] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13100] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13100] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13100] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13100] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13100] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13101]}, 88) = 13101
[pid 13100] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13100] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13100] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 13101 attached
 <unfinished ...>
[pid 13101] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13101] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13101] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13101] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13100] <... futex resumed>)        = 0
[pid 13100] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13100] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13101] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13101] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13100] <... futex resumed>)        = 0
[pid 13100] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13100] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13101] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13101] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13100] <... futex resumed>)        = 0
[pid 13100] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13100] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13101] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13101] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13100] <... futex resumed>)        = 0
[pid 13100] exit_group(0)               = ?
[pid 13101] +++ exited with 0 +++
[pid 13100] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13100, si_uid=0, si_status=0, 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 13102 attached
 <unfinished ...>
[pid 13102] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13102] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13102] setpgid(0, 0)               = 0
[pid   555] <... clone resumed>, child_tidptr=0x55558842d690) = 13102
[pid 13102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13102] write(3, "1000", 4)         = 4
[pid 13102] close(3)                    = 0
[pid 13102] write(1, "executing program\n", 18executing program
) = 18
[pid 13102] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13102] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13102] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13102] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13102] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13102] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13102] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13103 attached
 => {parent_tid=[13103]}, 88) = 13103
[pid 13103] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13103] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13103] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13102] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13102] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13103] <... futex resumed>)        = 0
[pid 13103] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13103] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13103] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13102] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13102] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13103] <... futex resumed>)        = 0
[pid 13103] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13103] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13103] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13102] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13102] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13103] <... futex resumed>)        = 0
[pid 13103] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13103] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13103] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13102] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13102] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13103] <... futex resumed>)        = 0
[pid 13103] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13102] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13103] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13103] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13103] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13102] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13102] exit_group(0)               = ?
[pid 13103] <... futex resumed>)        = ?
[pid 13103] +++ exited with 0 +++
[pid 13102] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13102, 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=0x55558842d690) = 13104
./strace-static-x86_64: Process 13104 attached
[pid 13104] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13104] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13104] setpgid(0, 0)               = 0
[pid 13104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13104] write(3, "1000", 4)         = 4
[pid 13104] close(3)                    = 0
executing program
[pid 13104] write(1, "executing program\n", 18) = 18
[pid 13104] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13104] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13104] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13104] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13104] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13104] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13104] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13105 attached
 => {parent_tid=[13105]}, 88) = 13105
[pid 13105] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13104] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13105] <... set_robust_list resumed>) = 0
[pid 13104] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13105] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13104] <... futex resumed>)        = 0
[pid 13105] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13104] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13105] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13105] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13104] <... futex resumed>)        = 0
[pid 13104] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13104] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13105] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13105] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13104] <... futex resumed>)        = 0
[pid 13104] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13104] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13105] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13105] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13104] <... futex resumed>)        = 0
[pid 13104] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13104] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13105] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13105] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13104] <... futex resumed>)        = 0
[pid 13104] exit_group(0)               = ?
[pid 13105] +++ exited with 0 +++
[pid 13104] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13104, si_uid=0, si_status=0, 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 13106 attached
, child_tidptr=0x55558842d690) = 13106
[pid 13106] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13106] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13106] setpgid(0, 0)               = 0
[pid 13106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13106] write(3, "1000", 4)         = 4
[pid 13106] close(3)                    = 0
[pid 13106] write(1, "executing program\n", 18executing program
) = 18
[pid 13106] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13106] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13106] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13106] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13106] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13106] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13106] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13107 attached
 => {parent_tid=[13107]}, 88) = 13107
[pid 13107] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13107] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13107] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13106] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13106] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13107] <... futex resumed>)        = 0
[pid 13107] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13107] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13107] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13106] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13106] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13107] <... futex resumed>)        = 0
[pid 13107] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 13106] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13107] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 13107] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13106] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13107] <... futex resumed>)        = 0
[pid 13107] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13106] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13107] <... futex resumed>)        = 0
[pid 13107] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13107] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13107] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13106] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13106] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13107] <... futex resumed>)        = 0
[pid 13107] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13107] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13107] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13106] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13106] exit_group(0)               = ?
[pid 13107] <... futex resumed>)        = ?
[pid 13107] +++ exited with 0 +++
[pid 13106] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13106, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13108
./strace-static-x86_64: Process 13108 attached
[pid 13108] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13108] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13108] setpgid(0, 0)               = 0
[pid 13108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13108] write(3, "1000", 4)         = 4
[pid 13108] close(3)                    = 0
[pid 13108] write(1, "executing program\n", 18executing program
) = 18
[pid 13108] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13108] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13108] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13108] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13108] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13108] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13108] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13109 attached
 => {parent_tid=[13109]}, 88) = 13109
[pid 13108] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13108] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13108] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13109] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13109] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13109] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13109] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13108] <... futex resumed>)        = 0
[pid 13108] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13108] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13109] <... futex resumed>)        = 1
[pid 13109] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13109] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13108] <... futex resumed>)        = 0
[pid 13108] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13108] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13109] <... futex resumed>)        = 1
[pid 13109] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13109] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13108] <... futex resumed>)        = 0
[pid 13108] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13108] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13109] <... futex resumed>)        = 1
[pid 13109] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13109] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13108] <... futex resumed>)        = 0
[pid 13108] exit_group(0)               = ?
[pid 13109] <... futex resumed>)        = ?
[pid 13109] +++ exited with 0 +++
[pid 13108] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13108, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13110
./strace-static-x86_64: Process 13110 attached
[pid 13110] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13110] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13110] setpgid(0, 0)               = 0
[pid 13110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13110] write(3, "1000", 4)         = 4
[pid 13110] close(3executing program
)                    = 0
[pid 13110] write(1, "executing program\n", 18) = 18
[pid 13110] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13110] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13110] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13110] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13110] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13110] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13110] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13111]}, 88) = 13111
[pid 13110] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13110] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13110] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 13111 attached
 <unfinished ...>
[pid 13111] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13111] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13111] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13111] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13110] <... futex resumed>)        = 0
[pid 13110] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13110] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13111] <... futex resumed>)        = 1
[pid 13111] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13111] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13110] <... futex resumed>)        = 0
[pid 13110] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13110] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13111] <... futex resumed>)        = 1
[pid 13111] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13111] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13110] <... futex resumed>)        = 0
[pid 13110] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13110] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13111] <... futex resumed>)        = 1
[pid 13111] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13111] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13110] <... futex resumed>)        = 0
[pid 13110] exit_group(0)               = ?
[pid 13111] <... futex resumed>)        = ?
[pid 13111] +++ exited with 0 +++
[pid 13110] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13110, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13112
./strace-static-x86_64: Process 13112 attached
[pid 13112] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13112] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13112] setpgid(0, 0)               = 0
[pid 13112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13112] write(3, "1000", 4)         = 4
[pid 13112] close(3)                    = 0
[pid 13112] write(1, "executing program\n", 18executing program
) = 18
[pid 13112] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13112] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13112] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13112] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13112] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13112] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13112] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13113 attached
 <unfinished ...>
[pid 13113] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13113] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13113] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13112] <... clone3 resumed> => {parent_tid=[13113]}, 88) = 13113
[pid 13112] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13112] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13113] <... futex resumed>)        = 0
[pid 13113] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 13112] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13113] <... 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 13113] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13112] <... futex resumed>)        = 0
[pid 13112] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13112] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13113] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13113] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13112] <... futex resumed>)        = 0
[pid 13112] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13113] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 13112] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13113] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 13113] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13112] <... futex resumed>)        = 0
[pid 13112] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13112] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13113] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13113] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13112] <... futex resumed>)        = 0
[pid 13112] exit_group(0 <unfinished ...>
[pid 13113] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13112] <... exit_group resumed>)   = ?
[pid 13113] <... futex resumed>)        = ?
[pid 13113] +++ exited with 0 +++
[pid 13112] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13112, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13114
./strace-static-x86_64: Process 13114 attached
[pid 13114] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13114] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13114] setpgid(0, 0)               = 0
[pid 13114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13114] write(3, "1000", 4)         = 4
[pid 13114] close(3)                    = 0
executing program
[pid 13114] write(1, "executing program\n", 18) = 18
[pid 13114] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13114] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13114] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13114] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13114] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13114] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13114] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13115 attached
 => {parent_tid=[13115]}, 88) = 13115
[pid 13114] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13114] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13114] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13115] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13115] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13115] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13115] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13114] <... futex resumed>)        = 0
[pid 13115] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13114] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13114] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13115] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13115] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13115] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13114] <... futex resumed>)        = 0
[pid 13114] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13114] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13115] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13115] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13114] <... futex resumed>)        = 0
[pid 13114] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13114] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13115] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13115] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13114] <... futex resumed>)        = 0
[pid 13114] exit_group(0)               = ?
[pid 13115] +++ exited with 0 +++
[pid 13114] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13114, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13116
./strace-static-x86_64: Process 13116 attached
[pid 13116] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13116] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13116] setpgid(0, 0)               = 0
[pid 13116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13116] write(3, "1000", 4)         = 4
[pid 13116] close(3)                    = 0
[pid 13116] write(1, "executing program\n", 18executing program
) = 18
[pid 13116] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13116] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13116] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13116] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13116] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13116] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13116] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13117 attached
 => {parent_tid=[13117]}, 88) = 13117
[pid 13117] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13117] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13117] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13116] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13116] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13117] <... futex resumed>)        = 0
[pid 13116] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13117] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13117] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13117] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13116] <... futex resumed>)        = 0
[pid 13116] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13117] <... futex resumed>)        = 0
[pid 13117] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13117] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13117] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13116] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13116] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13117] <... futex resumed>)        = 0
[pid 13117] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13117] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13117] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13116] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13116] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13117] <... futex resumed>)        = 0
[pid 13117] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13116] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13117] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13117] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13117] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13116] <... futex resumed>)        = 0
[pid 13116] exit_group(0)               = ?
[pid 13117] <... futex resumed>)        = ?
[pid 13117] +++ exited with 0 +++
[pid 13116] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13116, si_uid=0, si_status=0, 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 13118 attached
, child_tidptr=0x55558842d690) = 13118
[pid 13118] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13118] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13118] setpgid(0, 0)               = 0
[pid 13118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13118] write(3, "1000", 4)         = 4
[pid 13118] close(3executing program
)                    = 0
[pid 13118] write(1, "executing program\n", 18) = 18
[pid 13118] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13118] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13118] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13118] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13118] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13118] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13118] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13119]}, 88) = 13119
[pid 13118] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13118] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13118] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 13119 attached
 <unfinished ...>
[pid 13119] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13119] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13119] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13119] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13118] <... futex resumed>)        = 0
[pid 13118] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13118] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13119] <... futex resumed>)        = 1
[pid 13119] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13119] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13118] <... futex resumed>)        = 0
[pid 13118] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13118] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13119] <... futex resumed>)        = 1
[pid 13119] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13119] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13118] <... futex resumed>)        = 0
[pid 13118] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13118] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13119] <... futex resumed>)        = 1
[pid 13119] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13119] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13118] <... futex resumed>)        = 0
[pid 13118] exit_group(0)               = ?
[pid 13119] <... futex resumed>)        = ?
[pid 13119] +++ exited with 0 +++
[pid 13118] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13118, si_uid=0, si_status=0, 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 13120 attached
, child_tidptr=0x55558842d690) = 13120
[pid 13120] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13120] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13120] setpgid(0, 0)               = 0
[pid 13120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13120] write(3, "1000", 4)         = 4
[pid 13120] close(3)                    = 0
[pid 13120] write(1, "executing program\n", 18executing program
) = 18
[pid 13120] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13120] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13120] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13120] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13120] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13120] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13120] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13121 attached
 <unfinished ...>
[pid 13121] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13121] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13121] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13120] <... clone3 resumed> => {parent_tid=[13121]}, 88) = 13121
[pid 13120] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13120] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13121] <... futex resumed>)        = 0
[pid 13121] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13120] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13121] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13121] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13120] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13120] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13121] <... futex resumed>)        = 0
[pid 13121] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13121] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13121] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13120] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13120] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13121] <... futex resumed>)        = 0
[pid 13121] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13121] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13121] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13120] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13120] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13121] <... futex resumed>)        = 0
[pid 13121] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13121] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13121] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13120] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13120] exit_group(0)               = ?
[pid 13121] <... futex resumed>)        = ?
[pid 13121] +++ exited with 0 +++
[pid 13120] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13120, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13122
./strace-static-x86_64: Process 13122 attached
[pid 13122] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13122] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13122] setpgid(0, 0)               = 0
[pid 13122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13122] write(3, "1000", 4)         = 4
[pid 13122] close(3)                    = 0
[pid 13122] write(1, "executing program\n", 18executing program
) = 18
[pid 13122] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13122] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13122] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13122] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13122] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13122] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13122] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13123 attached
 => {parent_tid=[13123]}, 88) = 13123
[pid 13123] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13123] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13123] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13122] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13122] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13123] <... futex resumed>)        = 0
[pid 13123] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13123] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13123] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13122] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13122] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13123] <... futex resumed>)        = 0
[pid 13123] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13123] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13123] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13122] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13122] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13123] <... futex resumed>)        = 0
[pid 13123] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13122] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13123] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13122] <... futex resumed>)        = 0
[pid 13122] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13123] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13122] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13123] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13123] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13122] <... futex resumed>)        = 0
[pid 13122] exit_group(0)               = ?
[pid 13123] +++ exited with 0 +++
[pid 13122] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13122, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13124
./strace-static-x86_64: Process 13124 attached
[pid 13124] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13124] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13124] setpgid(0, 0)               = 0
[pid 13124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13124] write(3, "1000", 4)         = 4
[pid 13124] close(3)                    = 0
[pid 13124] write(1, "executing program\n", 18executing program
) = 18
[pid 13124] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13124] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13124] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13124] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13124] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13124] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13124] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13125 attached
 => {parent_tid=[13125]}, 88) = 13125
[pid 13125] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13124] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13125] <... set_robust_list resumed>) = 0
[pid 13124] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13125] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13124] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13125] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13124] <... futex resumed>)        = 0
[pid 13124] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13125] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13125] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13124] <... futex resumed>)        = 0
[pid 13124] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13124] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13125] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13125] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13124] <... futex resumed>)        = 0
[pid 13124] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13124] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13125] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13125] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13124] <... futex resumed>)        = 0
[pid 13124] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13124] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13125] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13125] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13124] <... futex resumed>)        = 0
[pid 13125] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13124] exit_group(0)               = ?
[pid 13125] <... futex resumed>)        = ?
[pid 13125] +++ exited with 0 +++
[pid 13124] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13124, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13126
./strace-static-x86_64: Process 13126 attached
[pid 13126] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13126] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13126] setpgid(0, 0)               = 0
[pid 13126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13126] write(3, "1000", 4)         = 4
[pid 13126] close(3)                    = 0
[pid 13126] write(1, "executing program\n", 18executing program
) = 18
[pid 13126] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13126] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13126] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13126] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13126] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13126] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13126] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13127 attached
 => {parent_tid=[13127]}, 88) = 13127
[pid 13127] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13126] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13127] <... set_robust_list resumed>) = 0
[pid 13126] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13127] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13126] <... futex resumed>)        = 0
[pid 13127] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13127] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 13126] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13127] <... 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 13127] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13126] <... futex resumed>)        = 0
[pid 13126] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13126] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13127] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13127] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13126] <... futex resumed>)        = 0
[pid 13126] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13126] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13127] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13127] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13126] <... futex resumed>)        = 0
[pid 13126] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13126] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13127] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13127] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13126] <... futex resumed>)        = 0
[pid 13126] exit_group(0)               = ?
[pid 13127] +++ exited with 0 +++
[pid 13126] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13126, si_uid=0, si_status=0, 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 13128 attached
, child_tidptr=0x55558842d690) = 13128
[pid 13128] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13128] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13128] setpgid(0, 0)               = 0
[pid 13128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13128] write(3, "1000", 4)         = 4
[pid 13128] close(3)                    = 0
[pid 13128] write(1, "executing program\n", 18executing program
) = 18
[pid 13128] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13128] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13128] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13128] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13128] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13128] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13128] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13129 attached
 => {parent_tid=[13129]}, 88) = 13129
[pid 13129] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13129] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13129] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13128] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13128] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13129] <... futex resumed>)        = 0
[pid 13129] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13129] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13129] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13128] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13128] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13129] <... futex resumed>)        = 0
[pid 13129] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13129] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13129] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13128] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13128] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13129] <... futex resumed>)        = 0
[pid 13129] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13129] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13129] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13128] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13128] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13129] <... futex resumed>)        = 0
[pid 13128] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13129] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13129] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13129] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13128] <... futex resumed>)        = 0
[pid 13128] exit_group(0)               = ?
[pid 13129] <... futex resumed>)        = ?
[pid 13129] +++ exited with 0 +++
[pid 13128] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13128, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13130
./strace-static-x86_64: Process 13130 attached
[pid 13130] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13130] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13130] setpgid(0, 0)               = 0
[pid 13130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13130] write(3, "1000", 4)         = 4
executing program
[pid 13130] close(3)                    = 0
[pid 13130] write(1, "executing program\n", 18) = 18
[pid 13130] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13130] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13130] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13130] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13130] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13130] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13130] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13131]}, 88) = 13131
[pid 13130] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13130] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13130] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 13131 attached
 <unfinished ...>
[pid 13131] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13131] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13131] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13131] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13131] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13130] <... futex resumed>)        = 0
[pid 13130] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13131] <... futex resumed>)        = 0
[pid 13131] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13131] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13131] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13130] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13130] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13131] <... futex resumed>)        = 0
[pid 13131] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13131] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13130] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13131] <... futex resumed>)        = 0
[pid 13130] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13131] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13130] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13131] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13130] <... futex resumed>)        = 0
[pid 13131] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13130] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13131] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13131] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13130] <... futex resumed>)        = 0
[pid 13130] exit_group(0)               = ?
[pid 13131] +++ exited with 0 +++
[pid 13130] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13130, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13132
./strace-static-x86_64: Process 13132 attached
[pid 13132] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13132] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13132] setpgid(0, 0)               = 0
[pid 13132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13132] write(3, "1000", 4)         = 4
[pid 13132] close(3)                    = 0
[pid 13132] write(1, "executing program\n", 18executing program
) = 18
[pid 13132] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13132] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13132] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13132] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13132] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13132] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13132] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13133 attached
 => {parent_tid=[13133]}, 88) = 13133
[pid 13133] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13133] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13133] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13132] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13132] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13133] <... futex resumed>)        = 0
[pid 13133] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 13132] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13133] <... 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 13133] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13132] <... futex resumed>)        = 0
[pid 13132] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13132] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13133] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13133] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13132] <... futex resumed>)        = 0
[pid 13132] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13132] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13133] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13133] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13132] <... futex resumed>)        = 0
[pid 13133] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13132] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13132] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13133] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13133] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13133] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13132] <... futex resumed>)        = 0
[pid 13132] exit_group(0)               = ?
[pid 13133] +++ exited with 0 +++
[pid 13132] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13132, si_uid=0, si_status=0, 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 13134 attached
, child_tidptr=0x55558842d690) = 13134
[pid 13134] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13134] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13134] setpgid(0, 0)               = 0
[pid 13134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13134] write(3, "1000", 4)         = 4
executing program
[pid 13134] close(3)                    = 0
[pid 13134] write(1, "executing program\n", 18) = 18
[pid 13134] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13134] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13134] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13134] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13134] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13134] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13134] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13135 attached
 => {parent_tid=[13135]}, 88) = 13135
[pid 13135] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13135] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13135] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13134] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13134] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13135] <... futex resumed>)        = 0
[pid 13134] <... futex resumed>)        = 1
[pid 13135] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13135] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13135] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13134] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13134] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13135] <... futex resumed>)        = 0
[pid 13134] <... futex resumed>)        = 1
[pid 13135] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13135] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13135] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13134] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13134] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13135] <... futex resumed>)        = 0
[pid 13134] <... futex resumed>)        = 1
[pid 13135] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13135] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13135] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13134] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13134] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13135] <... futex resumed>)        = 0
[pid 13134] <... futex resumed>)        = 1
[pid 13135] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13135] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13135] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13134] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13134] exit_group(0 <unfinished ...>
[pid 13135] <... futex resumed>)        = ?
[pid 13134] <... exit_group resumed>)   = ?
[pid 13135] +++ exited with 0 +++
[pid 13134] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13134, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13136
./strace-static-x86_64: Process 13136 attached
[pid 13136] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13136] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13136] setpgid(0, 0)               = 0
[pid 13136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13136] write(3, "1000", 4)         = 4
[pid 13136] close(3)                    = 0
executing program
[pid 13136] write(1, "executing program\n", 18) = 18
[pid 13136] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13136] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13136] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13136] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13136] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13136] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13136] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13137 attached
 => {parent_tid=[13137]}, 88) = 13137
[pid 13136] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13136] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13136] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13137] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13137] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13137] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13137] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13136] <... futex resumed>)        = 0
[pid 13136] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13136] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13137] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13137] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13136] <... futex resumed>)        = 0
[pid 13137] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 13136] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13137] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 13136] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13137] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13136] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13136] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13136] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13137] <... futex resumed>)        = 1
[pid 13136] <... futex resumed>)        = 0
[pid 13136] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13137] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13137] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13136] <... futex resumed>)        = 0
[pid 13137] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13136] exit_group(0)               = ?
[pid 13137] <... futex resumed>)        = ?
[pid 13137] +++ exited with 0 +++
[pid 13136] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13136, 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=0x55558842d690) = 13138
./strace-static-x86_64: Process 13138 attached
[pid 13138] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13138] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13138] setpgid(0, 0)               = 0
[pid 13138] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13138] write(3, "1000", 4)         = 4
[pid 13138] close(3)                    = 0
[pid 13138] write(1, "executing program\n", 18executing program
) = 18
[pid 13138] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13138] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13138] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13138] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13138] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13138] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13138] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13139 attached
 => {parent_tid=[13139]}, 88) = 13139
[pid 13139] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13139] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13139] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13138] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13138] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13139] <... futex resumed>)        = 0
[pid 13138] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13139] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13139] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13139] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13138] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13138] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13139] <... futex resumed>)        = 0
[pid 13139] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13139] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13139] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13138] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13138] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13139] <... futex resumed>)        = 0
[pid 13139] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13139] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13139] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13138] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13138] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13139] <... futex resumed>)        = 0
[pid 13138] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13139] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13139] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13139] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13138] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13138] exit_group(0)               = ?
[pid 13139] <... futex resumed>)        = ?
[pid 13139] +++ exited with 0 +++
[pid 13138] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13138, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13140
./strace-static-x86_64: Process 13140 attached
[pid 13140] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13140] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13140] setpgid(0, 0)               = 0
[pid 13140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13140] write(3, "1000", 4)         = 4
[pid 13140] close(3)                    = 0
[pid 13140] write(1, "executing program\n", 18executing program
) = 18
[pid 13140] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13140] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13140] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13140] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13140] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13140] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13140] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13141 attached
 => {parent_tid=[13141]}, 88) = 13141
[pid 13141] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13141] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13141] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13140] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13140] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13141] <... futex resumed>)        = 0
[pid 13140] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13141] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13141] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13141] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13140] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13140] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13141] <... futex resumed>)        = 0
[pid 13141] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 13140] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13141] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 13141] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13141] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13140] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13140] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13140] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13141] <... futex resumed>)        = 0
[pid 13141] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13141] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13141] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13140] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13140] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13141] <... futex resumed>)        = 0
[pid 13141] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13140] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13141] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13141] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13141] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13140] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13140] exit_group(0)               = ?
[pid 13141] <... futex resumed>)        = ?
[pid 13141] +++ exited with 0 +++
[pid 13140] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13140, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13142
./strace-static-x86_64: Process 13142 attached
[pid 13142] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13142] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13142] setpgid(0, 0)               = 0
[pid 13142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13142] write(3, "1000", 4)         = 4
[pid 13142] close(3)                    = 0
[pid 13142] write(1, "executing program\n", 18executing program
) = 18
[pid 13142] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13142] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13142] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13142] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13142] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13142] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13142] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13143]}, 88) = 13143
[pid 13142] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13142] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13142] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 13143 attached
 <unfinished ...>
[pid 13143] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13143] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13143] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13143] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13142] <... futex resumed>)        = 0
[pid 13142] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13142] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13143] <... futex resumed>)        = 1
[pid 13143] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13143] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13142] <... futex resumed>)        = 0
[pid 13142] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13142] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13143] <... futex resumed>)        = 1
[pid 13143] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13143] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13142] <... futex resumed>)        = 0
[pid 13142] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13142] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13143] <... futex resumed>)        = 1
[pid 13143] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13143] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13142] <... futex resumed>)        = 0
[pid 13142] exit_group(0)               = ?
[pid 13143] <... futex resumed>)        = ?
[pid 13143] +++ exited with 0 +++
[pid 13142] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13142, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13144
./strace-static-x86_64: Process 13144 attached
[pid 13144] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13144] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13144] setpgid(0, 0)               = 0
[pid 13144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13144] write(3, "1000", 4)         = 4
[pid 13144] close(3)                    = 0
[pid 13144] write(1, "executing program\n", 18executing program
) = 18
[pid 13144] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13144] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13144] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13144] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13144] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13144] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13144] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13145]}, 88) = 13145
[pid 13144] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13144] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13144] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 13145 attached
 <unfinished ...>
[pid 13145] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13145] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13145] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13145] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13144] <... futex resumed>)        = 0
[pid 13144] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13144] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13145] <... futex resumed>)        = 1
[pid 13145] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13145] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13144] <... futex resumed>)        = 0
[pid 13144] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13144] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13145] <... futex resumed>)        = 1
[pid 13145] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13145] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13144] <... futex resumed>)        = 0
[pid 13144] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13144] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13145] <... futex resumed>)        = 1
[pid 13145] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13145] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13144] <... futex resumed>)        = 0
[pid 13144] exit_group(0)               = ?
[pid 13145] <... futex resumed>)        = ?
[pid 13145] +++ exited with 0 +++
[pid 13144] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13144, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13146
./strace-static-x86_64: Process 13146 attached
[pid 13146] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13146] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13146] setpgid(0, 0)               = 0
[pid 13146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13146] write(3, "1000", 4)         = 4
[pid 13146] close(3)                    = 0
executing program
[pid 13146] write(1, "executing program\n", 18) = 18
[pid 13146] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13146] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13146] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13146] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13146] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13146] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13146] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13147 attached
 => {parent_tid=[13147]}, 88) = 13147
[pid 13147] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13146] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13147] <... set_robust_list resumed>) = 0
[pid 13146] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13146] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13147] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13146] <... futex resumed>)        = 0
[pid 13147] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13146] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13147] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13147] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13146] <... futex resumed>)        = 0
[pid 13147] <... futex resumed>)        = 1
[pid 13146] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13147] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 13146] <... futex resumed>)        = 0
[pid 13146] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13147] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 13147] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13146] <... futex resumed>)        = 0
[pid 13147] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13146] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13147] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13146] <... futex resumed>)        = 0
[pid 13147] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 13146] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13147] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 13147] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13146] <... futex resumed>)        = 0
[pid 13147] <... futex resumed>)        = 1
[pid 13146] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13146] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13147] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13147] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13146] <... futex resumed>)        = 0
[pid 13147] <... futex resumed>)        = 1
[pid 13146] exit_group(0 <unfinished ...>
[pid 13147] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13146] <... exit_group resumed>)   = ?
[pid 13147] <... futex resumed>)        = -1 (errno 18446744073709551414)
[pid 13147] +++ exited with 0 +++
[pid 13146] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13146, si_uid=0, si_status=0, 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 13148 attached
, child_tidptr=0x55558842d690) = 13148
[pid 13148] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13148] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13148] setpgid(0, 0)               = 0
[pid 13148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13148] write(3, "1000", 4)         = 4
[pid 13148] close(3)                    = 0
[pid 13148] write(1, "executing program\n", 18executing program
) = 18
[pid 13148] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13148] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13148] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13148] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13148] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13148] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13148] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13149 attached
 <unfinished ...>
[pid 13149] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13149] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13149] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13148] <... clone3 resumed> => {parent_tid=[13149]}, 88) = 13149
[pid 13148] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13148] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13148] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13149] <... futex resumed>)        = 0
[pid 13149] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13149] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13148] <... futex resumed>)        = 0
[pid 13148] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13148] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13149] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13149] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13148] <... futex resumed>)        = 0
[pid 13148] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13149] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 13148] <... futex resumed>)        = 0
[pid 13148] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13149] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 13149] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13148] <... futex resumed>)        = 0
[pid 13148] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13149] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13148] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13149] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13148] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13149] <... futex resumed>)        = 0
[pid 13148] exit_group(0)               = ?
[pid 13149] +++ exited with 0 +++
[pid 13148] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13148, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13150
./strace-static-x86_64: Process 13150 attached
[pid 13150] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13150] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13150] setpgid(0, 0)               = 0
[pid 13150] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13150] write(3, "1000", 4)         = 4
[pid 13150] close(3)                    = 0
[pid 13150] write(1, "executing program\n", 18executing program
) = 18
[pid 13150] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13150] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13150] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13150] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13150] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13150] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13150] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13151 attached
 => {parent_tid=[13151]}, 88) = 13151
[pid 13151] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13150] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13151] <... set_robust_list resumed>) = 0
[pid 13150] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13151] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13150] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13151] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13150] <... futex resumed>)        = 0
[pid 13150] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13151] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13151] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13150] <... futex resumed>)        = 0
[pid 13151] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13150] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13151] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13150] <... futex resumed>)        = 0
[pid 13151] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 13150] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13151] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 13151] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13150] <... futex resumed>)        = 0
[pid 13151] <... futex resumed>)        = 1
[pid 13150] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13151] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 13150] <... futex resumed>)        = 0
[pid 13150] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13151] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 13151] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13150] <... futex resumed>)        = 0
[pid 13151] <... futex resumed>)        = 1
[pid 13150] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13151] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13150] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13151] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13151] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13150] <... futex resumed>)        = 0
[pid 13151] <... futex resumed>)        = 1
[pid 13150] exit_group(0 <unfinished ...>
[pid 13151] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL) = ?
[pid 13150] <... exit_group resumed>)   = ?
[pid 13151] +++ exited with 0 +++
[pid 13150] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13150, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13152
./strace-static-x86_64: Process 13152 attached
[pid 13152] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13152] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13152] setpgid(0, 0)               = 0
[pid 13152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13152] write(3, "1000", 4)         = 4
[pid 13152] close(3)                    = 0
executing program
[pid 13152] write(1, "executing program\n", 18) = 18
[pid 13152] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13152] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13152] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13152] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13152] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13152] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13152] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13153]}, 88) = 13153
[pid 13152] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13152] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13152] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 13153 attached
 <unfinished ...>
[pid 13153] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13153] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13153] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13153] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13152] <... futex resumed>)        = 0
[pid 13152] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13153] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 13152] <... futex resumed>)        = 0
[pid 13152] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13153] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 13153] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13152] <... futex resumed>)        = 0
[pid 13152] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13152] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13153] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13153] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13152] <... futex resumed>)        = 0
[pid 13152] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13152] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13153] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13153] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13152] <... futex resumed>)        = 0
[pid 13152] exit_group(0)               = ?
[pid 13153] +++ exited with 0 +++
[pid 13152] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13152, si_uid=0, si_status=0, 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 13154 attached
 <unfinished ...>
[pid 13154] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13154] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13154] setpgid(0, 0)               = 0
[pid   555] <... clone resumed>, child_tidptr=0x55558842d690) = 13154
[pid 13154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13154] write(3, "1000", 4)         = 4
[pid 13154] close(3executing program
)                    = 0
[pid 13154] write(1, "executing program\n", 18) = 18
[pid 13154] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13154] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13154] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13154] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13154] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13154] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13154] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13155]}, 88) = 13155
./strace-static-x86_64: Process 13155 attached
[pid 13154] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13154] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13154] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13155] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13155] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13155] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13155] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13154] <... futex resumed>)        = 0
[pid 13154] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13154] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13155] <... futex resumed>)        = 1
[pid 13155] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13155] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13154] <... futex resumed>)        = 0
[pid 13154] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13154] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13155] <... futex resumed>)        = 1
[pid 13155] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13155] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13154] <... futex resumed>)        = 0
[pid 13154] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13154] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13155] <... futex resumed>)        = 1
[pid 13155] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13155] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13154] <... futex resumed>)        = 0
[pid 13154] exit_group(0)               = ?
[pid 13155] <... futex resumed>)        = ?
[pid 13155] +++ exited with 0 +++
[pid 13154] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13154, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13156
./strace-static-x86_64: Process 13156 attached
[pid 13156] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13156] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13156] setpgid(0, 0)               = 0
[pid 13156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13156] write(3, "1000", 4)         = 4
[pid 13156] close(3)                    = 0
[pid 13156] write(1, "executing program\n", 18executing program
) = 18
[pid 13156] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13156] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13156] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13156] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13156] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13156] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13156] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13157 attached
 <unfinished ...>
[pid 13157] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13157] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13157] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13156] <... clone3 resumed> => {parent_tid=[13157]}, 88) = 13157
[pid 13156] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13156] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13157] <... futex resumed>)        = 0
[pid 13157] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 13156] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13157] <... 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 13157] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13157] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13156] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13156] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13157] <... futex resumed>)        = 0
[pid 13157] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13157] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13157] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13156] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13156] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13157] <... futex resumed>)        = 0
[pid 13157] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13157] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13157] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13156] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13156] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13157] <... futex resumed>)        = 0
[pid 13157] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13157] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13157] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13156] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13156] exit_group(0)               = ?
[pid 13157] <... futex resumed>)        = ?
[pid 13157] +++ exited with 0 +++
[pid 13156] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13156, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13158
./strace-static-x86_64: Process 13158 attached
[pid 13158] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13158] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13158] setpgid(0, 0)               = 0
[pid 13158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13158] write(3, "1000", 4)         = 4
[pid 13158] close(3)                    = 0
[pid 13158] write(1, "executing program\n", 18executing program
) = 18
[pid 13158] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13158] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13158] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13158] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13158] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13158] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13158] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13159 attached
 => {parent_tid=[13159]}, 88) = 13159
[pid 13159] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13158] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13159] <... set_robust_list resumed>) = 0
[pid 13158] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13159] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13158] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13159] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13158] <... futex resumed>)        = 0
[pid 13158] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13159] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13159] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13158] <... futex resumed>)        = 0
[pid 13159] <... futex resumed>)        = 1
[pid 13158] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13159] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 13158] <... futex resumed>)        = 0
[pid 13158] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13159] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 13159] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13158] <... futex resumed>)        = 0
[pid 13159] <... futex resumed>)        = 1
[pid 13158] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13159] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 13158] <... futex resumed>)        = 0
[pid 13158] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13159] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 13159] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13158] <... futex resumed>)        = 0
[pid 13159] <... futex resumed>)        = 1
[pid 13158] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13158] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13159] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13159] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13158] <... futex resumed>)        = 0
[pid 13159] <... futex resumed>)        = 1
[pid 13158] exit_group(0 <unfinished ...>
[pid 13159] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13158] <... exit_group resumed>)   = ?
[pid 13159] <... futex resumed>)        = -1 (errno 18446744073709551414)
[pid 13159] +++ exited with 0 +++
[pid 13158] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13158, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13160
./strace-static-x86_64: Process 13160 attached
[pid 13160] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13160] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13160] setpgid(0, 0)               = 0
[pid 13160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13160] write(3, "1000", 4)         = 4
[pid 13160] close(3)                    = 0
[pid 13160] write(1, "executing program\n", 18executing program
) = 18
[pid 13160] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13160] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13160] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13160] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13160] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13160] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13160] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13161 attached
 <unfinished ...>
[pid 13161] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13161] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13161] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13160] <... clone3 resumed> => {parent_tid=[13161]}, 88) = 13161
[pid 13160] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13160] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13161] <... futex resumed>)        = 0
[pid 13161] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13161] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13161] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13160] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13160] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13161] <... futex resumed>)        = 0
[pid 13161] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13161] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13161] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13160] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13160] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13161] <... futex resumed>)        = 0
[pid 13161] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13161] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13161] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13160] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13160] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13161] <... futex resumed>)        = 0
[pid 13161] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13160] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13161] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13161] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13161] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13160] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13160] exit_group(0)               = ?
[pid 13161] <... futex resumed>)        = ?
[pid 13161] +++ exited with 0 +++
[pid 13160] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13160, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13162
./strace-static-x86_64: Process 13162 attached
[pid 13162] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13162] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13162] setpgid(0, 0)               = 0
[pid 13162] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13162] write(3, "1000", 4)         = 4
executing program
[pid 13162] close(3)                    = 0
[pid 13162] write(1, "executing program\n", 18) = 18
[pid 13162] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13162] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13162] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13162] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13162] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13162] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13162] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13163]}, 88) = 13163
[pid 13162] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13162] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13162] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 13163 attached
 <unfinished ...>
[pid 13163] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13163] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13163] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13163] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13162] <... futex resumed>)        = 0
[pid 13162] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13162] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13163] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13163] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13162] <... futex resumed>)        = 0
[pid 13162] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13162] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13163] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13163] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13162] <... futex resumed>)        = 0
[pid 13162] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13162] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13163] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13163] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13163] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13162] <... futex resumed>)        = 0
[pid 13162] exit_group(0)               = ?
[pid 13163] <... futex resumed>)        = ?
[pid 13163] +++ exited with 0 +++
[pid 13162] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13162, si_uid=0, si_status=0, 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 13164 attached
 <unfinished ...>
[pid 13164] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13164] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   555] <... clone resumed>, child_tidptr=0x55558842d690) = 13164
[pid 13164] <... prctl resumed>)        = 0
[pid 13164] setpgid(0, 0)               = 0
[pid 13164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13164] write(3, "1000", 4)         = 4
[pid 13164] close(3)                    = 0
[pid 13164] write(1, "executing program\n", 18) = 18
[pid 13164] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000executing program
) = 0
[pid 13164] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13164] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13164] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13164] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13164] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13164] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13165 attached
 => {parent_tid=[13165]}, 88) = 13165
[pid 13164] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13164] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13164] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13165] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13165] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13165] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13165] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13164] <... futex resumed>)        = 0
[pid 13164] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13164] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13165] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13165] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13164] <... futex resumed>)        = 0
[pid 13164] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13164] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13165] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13165] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13164] <... futex resumed>)        = 0
[pid 13164] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13164] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13165] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13165] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13164] <... futex resumed>)        = 0
[pid 13164] exit_group(0)               = ?
[pid 13165] +++ exited with 0 +++
[pid 13164] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13164, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13166
./strace-static-x86_64: Process 13166 attached
[pid 13166] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13166] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13166] setpgid(0, 0)               = 0
[pid 13166] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13166] write(3, "1000", 4executing program
)         = 4
[pid 13166] close(3)                    = 0
[pid 13166] write(1, "executing program\n", 18) = 18
[pid 13166] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13166] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13166] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13166] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13166] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13166] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13166] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13167 attached
 => {parent_tid=[13167]}, 88) = 13167
[pid 13167] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13167] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13167] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13166] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13166] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13167] <... futex resumed>)        = 0
[pid 13167] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13166] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13167] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13166] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13167] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13166] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13167] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13166] <... futex resumed>)        = 0
[pid 13167] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 13166] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13167] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 13167] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13166] <... futex resumed>)        = 0
[pid 13166] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13166] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13167] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13167] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13166] <... futex resumed>)        = 0
[pid 13167] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13166] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13167] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13166] <... futex resumed>)        = 0
[pid 13166] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13167] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13166] <... futex resumed>)        = 0
[pid 13166] exit_group(0)               = ?
[pid 13167] +++ exited with 0 +++
[pid 13166] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13166, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13168
./strace-static-x86_64: Process 13168 attached
[pid 13168] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13168] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13168] setpgid(0, 0)               = 0
[pid 13168] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13168] write(3, "1000", 4executing program
)         = 4
[pid 13168] close(3)                    = 0
[pid 13168] write(1, "executing program\n", 18) = 18
[pid 13168] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13168] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13168] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13168] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13168] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13168] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13168] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13169 attached
 => {parent_tid=[13169]}, 88) = 13169
[pid 13168] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13168] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13168] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13169] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13169] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13169] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13169] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13168] <... futex resumed>)        = 0
[pid 13169] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 13168] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13169] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 13168] <... futex resumed>)        = 0
[pid 13169] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13168] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13169] <... futex resumed>)        = 0
[pid 13168] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13169] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 13168] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13169] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 13168] <... futex resumed>)        = 0
[pid 13169] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13168] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13169] <... futex resumed>)        = 0
[pid 13168] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13169] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13168] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13169] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13168] <... futex resumed>)        = 0
[pid 13169] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13168] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13169] <... futex resumed>)        = 0
[pid 13168] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13169] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13168] exit_group(0 <unfinished ...>
[pid 13169] <... futex resumed>)        = ?
[pid 13168] <... exit_group resumed>)   = ?
[pid 13169] +++ exited with 0 +++
[pid 13168] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13168, si_uid=0, si_status=0, 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 13170 attached
, child_tidptr=0x55558842d690) = 13170
[pid 13170] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13170] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13170] setpgid(0, 0)               = 0
[pid 13170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13170] write(3, "1000", 4)         = 4
executing program
[pid 13170] close(3)                    = 0
[pid 13170] write(1, "executing program\n", 18) = 18
[pid 13170] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13170] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13170] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13170] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13170] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13170] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13170] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13171]}, 88) = 13171
[pid 13170] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13170] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13170] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 13171 attached
 <unfinished ...>
[pid 13171] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13171] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13171] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13171] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13170] <... futex resumed>)        = 0
[pid 13170] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13170] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13171] <... futex resumed>)        = 1
[pid 13171] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13171] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13170] <... futex resumed>)        = 0
[pid 13170] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13170] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13171] <... futex resumed>)        = 1
[pid 13171] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13171] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13170] <... futex resumed>)        = 0
[pid 13170] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13170] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13171] <... futex resumed>)        = 1
[pid 13171] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13171] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13170] <... futex resumed>)        = 0
[pid 13170] exit_group(0)               = ?
[pid 13171] <... futex resumed>)        = ?
[pid 13171] +++ exited with 0 +++
[pid 13170] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13170, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13172
./strace-static-x86_64: Process 13172 attached
[pid 13172] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13172] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13172] setpgid(0, 0)               = 0
[pid 13172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13172] write(3, "1000", 4)         = 4
[pid 13172] close(3)                    = 0
executing program
[pid 13172] write(1, "executing program\n", 18) = 18
[pid 13172] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13172] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13172] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13172] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13172] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13172] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13172] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13173 attached
 <unfinished ...>
[pid 13173] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13173] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13173] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13172] <... clone3 resumed> => {parent_tid=[13173]}, 88) = 13173
[pid 13172] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13172] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13173] <... futex resumed>)        = 0
[pid 13172] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13173] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13173] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13173] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13172] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13172] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13173] <... futex resumed>)        = 0
[pid 13173] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13173] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13173] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13172] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13172] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13173] <... futex resumed>)        = 0
[pid 13173] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13173] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13173] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13172] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13172] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13173] <... futex resumed>)        = 0
[pid 13173] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13172] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13173] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13173] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13173] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13172] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13172] exit_group(0)               = ?
[pid 13173] <... futex resumed>)        = ?
[pid 13173] +++ exited with 0 +++
[pid 13172] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13172, si_uid=0, si_status=0, 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 13174 attached
, child_tidptr=0x55558842d690) = 13174
[pid 13174] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13174] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13174] setpgid(0, 0)               = 0
[pid 13174] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13174] write(3, "1000", 4)         = 4
[pid 13174] close(3)                    = 0
executing program
[pid 13174] write(1, "executing program\n", 18) = 18
[pid 13174] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13174] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13174] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13174] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13174] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13174] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13174] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13175]}, 88) = 13175
[pid 13174] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13174] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13174] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 13175 attached
 <unfinished ...>
[pid 13175] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13175] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13175] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13175] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13174] <... futex resumed>)        = 0
[pid 13174] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13174] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13175] <... futex resumed>)        = 1
[pid 13175] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13175] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13174] <... futex resumed>)        = 0
[pid 13174] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13174] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13175] <... futex resumed>)        = 1
[pid 13175] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13175] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13174] <... futex resumed>)        = 0
[pid 13174] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13174] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13175] <... futex resumed>)        = 1
[pid 13175] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13175] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13174] <... futex resumed>)        = 0
[pid 13174] exit_group(0)               = ?
[pid 13175] <... futex resumed>)        = ?
[pid 13175] +++ exited with 0 +++
[pid 13174] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13174, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13176
./strace-static-x86_64: Process 13176 attached
[pid 13176] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13176] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13176] setpgid(0, 0)               = 0
[pid 13176] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13176] write(3, "1000", 4)         = 4
[pid 13176] close(3)                    = 0
[pid 13176] write(1, "executing program\n", 18executing program
) = 18
[pid 13176] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13176] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13176] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13176] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13176] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13176] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13176] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13177 attached
 => {parent_tid=[13177]}, 88) = 13177
[pid 13177] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13176] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13177] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13176] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13177] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13176] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13177] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 13176] <... futex resumed>)        = 0
[pid 13177] <... 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 13176] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13177] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13176] <... futex resumed>)        = 0
[pid 13176] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13176] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13177] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13177] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13176] <... futex resumed>)        = 0
[pid 13177] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 13176] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13176] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13177] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 13177] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13176] <... futex resumed>)        = 0
[pid 13176] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13176] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13177] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13177] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13176] <... futex resumed>)        = 0
[pid 13177] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13176] exit_group(0)               = ?
[pid 13177] <... futex resumed>)        = ?
[pid 13177] +++ exited with 0 +++
[pid 13176] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13176, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13178
./strace-static-x86_64: Process 13178 attached
[pid 13178] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13178] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13178] setpgid(0, 0)               = 0
[pid 13178] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13178] write(3, "1000", 4)         = 4
[pid 13178] close(3)                    = 0
[pid 13178] write(1, "executing program\n", 18executing program
) = 18
[pid 13178] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13178] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13178] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13178] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13178] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13178] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13178] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13179 attached
 => {parent_tid=[13179]}, 88) = 13179
[pid 13178] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13178] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13178] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13179] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13179] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13179] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13179] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13178] <... futex resumed>)        = 0
[pid 13178] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13178] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13179] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13179] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13178] <... futex resumed>)        = 0
[pid 13178] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13178] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13179] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13179] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13178] <... futex resumed>)        = 0
[pid 13178] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13178] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13179] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13179] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13178] <... futex resumed>)        = 0
[pid 13178] exit_group(0)               = ?
[pid 13179] +++ exited with 0 +++
[pid 13178] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13178, si_uid=0, si_status=0, 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 13180 attached
, child_tidptr=0x55558842d690) = 13180
[pid 13180] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13180] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13180] setpgid(0, 0)               = 0
[pid 13180] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13180] write(3, "1000", 4)         = 4
[pid 13180] close(3)                    = 0
[pid 13180] write(1, "executing program\n", 18executing program
) = 18
[pid 13180] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13180] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13180] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13180] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13180] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13180] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13180] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13181 attached
 => {parent_tid=[13181]}, 88) = 13181
[pid 13181] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13180] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13181] <... set_robust_list resumed>) = 0
[pid 13180] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13181] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13180] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13181] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13180] <... futex resumed>)        = 0
[pid 13180] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13181] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13181] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13180] <... futex resumed>)        = 0
[pid 13180] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13180] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13181] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13181] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13180] <... futex resumed>)        = 0
[pid 13180] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13180] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13181] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13181] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13180] <... futex resumed>)        = 0
[pid 13180] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13180] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13181] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13181] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13180] <... futex resumed>)        = 0
[pid 13180] exit_group(0)               = ?
[pid 13181] +++ exited with 0 +++
[pid 13180] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13180, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13182
./strace-static-x86_64: Process 13182 attached
[pid 13182] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13182] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13182] setpgid(0, 0)               = 0
[pid 13182] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13182] write(3, "1000", 4)         = 4
[pid 13182] close(3)                    = 0
[pid 13182] write(1, "executing program\n", 18executing program
) = 18
[pid 13182] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13182] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13182] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13182] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13182] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13182] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13182] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13183 attached
 => {parent_tid=[13183]}, 88) = 13183
[pid 13182] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13182] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13182] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13183] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13183] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13183] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13183] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13182] <... futex resumed>)        = 0
[pid 13182] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13182] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13183] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13183] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13182] <... futex resumed>)        = 0
[pid 13182] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13182] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13183] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13183] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13182] <... futex resumed>)        = 0
[pid 13182] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13182] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13183] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13183] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13182] <... futex resumed>)        = 0
[pid 13182] exit_group(0)               = ?
[pid 13183] +++ exited with 0 +++
[pid 13182] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13182, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13184
./strace-static-x86_64: Process 13184 attached
[pid 13184] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13184] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13184] setpgid(0, 0)               = 0
[pid 13184] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13184] write(3, "1000", 4)         = 4
[pid 13184] close(3)                    = 0
[pid 13184] write(1, "executing program\n", 18executing program
) = 18
[pid 13184] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13184] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13184] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13184] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13184] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13184] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13184] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13185 attached
 => {parent_tid=[13185]}, 88) = 13185
[pid 13185] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13185] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13185] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13184] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13184] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13185] <... futex resumed>)        = 0
[pid 13184] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13185] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13185] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13185] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13184] <... futex resumed>)        = 0
[pid 13184] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13185] <... futex resumed>)        = 0
[pid 13185] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13184] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13185] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13184] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13185] <... futex resumed>)        = 0
[pid 13184] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13185] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 13184] <... futex resumed>)        = 0
[pid 13184] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13185] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 13185] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13184] <... futex resumed>)        = 0
[pid 13184] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13185] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13184] <... futex resumed>)        = 0
[pid 13184] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13185] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13185] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13184] <... futex resumed>)        = 0
[pid 13184] exit_group(0 <unfinished ...>
[pid 13185] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13184] <... exit_group resumed>)   = ?
[pid 13185] <... futex resumed>)        = ?
[pid 13185] +++ exited with 0 +++
[pid 13184] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13184, si_uid=0, si_status=0, 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 13186 attached
, child_tidptr=0x55558842d690) = 13186
[pid 13186] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13186] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13186] setpgid(0, 0)               = 0
[pid 13186] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13186] write(3, "1000", 4)         = 4
[pid 13186] close(3)                    = 0
executing program
[pid 13186] write(1, "executing program\n", 18) = 18
[pid 13186] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13186] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13186] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13186] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13186] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13186] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13186] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13187 attached
 <unfinished ...>
[pid 13187] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13186] <... clone3 resumed> => {parent_tid=[13187]}, 88) = 13187
[pid 13187] <... set_robust_list resumed>) = 0
[pid 13186] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13187] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13186] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13187] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13186] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13187] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13187] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13187] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13186] <... futex resumed>)        = 0
[pid 13186] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13186] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13187] <... futex resumed>)        = 0
[pid 13187] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13187] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13187] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13186] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13186] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13187] <... futex resumed>)        = 0
[pid 13187] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 13186] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13187] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 13187] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13187] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13186] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13186] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13187] <... futex resumed>)        = 0
[pid 13187] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13186] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13187] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13187] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13187] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13186] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13186] exit_group(0)               = ?
[pid 13187] <... futex resumed>)        = ?
[pid 13187] +++ exited with 0 +++
[pid 13186] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13186, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13188
./strace-static-x86_64: Process 13188 attached
[pid 13188] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13188] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13188] setpgid(0, 0)               = 0
[pid 13188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13188] write(3, "1000", 4executing program
)         = 4
[pid 13188] close(3)                    = 0
[pid 13188] write(1, "executing program\n", 18) = 18
[pid 13188] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13188] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13188] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13188] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13188] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13188] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13188] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13189 attached
 => {parent_tid=[13189]}, 88) = 13189
[pid 13188] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13188] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13188] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13189] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13189] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13189] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13189] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13188] <... futex resumed>)        = 0
[pid 13188] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13188] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13189] <... futex resumed>)        = 1
[pid 13189] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13189] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13188] <... futex resumed>)        = 0
[pid 13188] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13188] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13189] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13189] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13188] <... futex resumed>)        = 0
[pid 13188] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13188] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13189] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13189] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13188] <... futex resumed>)        = 0
[pid 13188] exit_group(0)               = ?
[pid 13189] +++ exited with 0 +++
[pid 13188] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13188, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13190
./strace-static-x86_64: Process 13190 attached
[pid 13190] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13190] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13190] setpgid(0, 0)               = 0
[pid 13190] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13190] write(3, "1000", 4)         = 4
[pid 13190] close(3)                    = 0
[pid 13190] write(1, "executing program\n", 18executing program
) = 18
[pid 13190] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13190] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13190] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13190] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13190] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13190] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13190] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13191 attached
 => {parent_tid=[13191]}, 88) = 13191
[pid 13191] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13190] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13191] <... set_robust_list resumed>) = 0
[pid 13190] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13191] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13190] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13191] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13190] <... futex resumed>)        = 0
[pid 13190] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13191] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13191] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13190] <... futex resumed>)        = 0
[pid 13190] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13190] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13191] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13191] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13190] <... futex resumed>)        = 0
[pid 13190] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13190] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13191] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13191] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13190] <... futex resumed>)        = 0
[pid 13190] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13190] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13191] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13191] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13190] <... futex resumed>)        = 0
[pid 13191] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13190] exit_group(0)               = ?
[pid 13191] <... futex resumed>)        = ?
[pid 13191] +++ exited with 0 +++
[pid 13190] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13190, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13192
./strace-static-x86_64: Process 13192 attached
[pid 13192] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13192] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13192] setpgid(0, 0)               = 0
[pid 13192] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13192] write(3, "1000", 4)         = 4
[pid 13192] close(3executing program
)                    = 0
[pid 13192] write(1, "executing program\n", 18) = 18
[pid 13192] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13192] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13192] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13192] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13192] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13192] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13192] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13193]}, 88) = 13193
[pid 13192] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13192] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13192] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 13193 attached
 <unfinished ...>
[pid 13193] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13193] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13193] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13193] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13192] <... futex resumed>)        = 0
[pid 13192] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13192] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13193] <... futex resumed>)        = 1
[pid 13193] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13193] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13192] <... futex resumed>)        = 0
[pid 13192] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13192] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13193] <... futex resumed>)        = 1
[pid 13193] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13193] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13192] <... futex resumed>)        = 0
[pid 13192] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13192] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13193] <... futex resumed>)        = 1
[pid 13193] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13193] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13192] <... futex resumed>)        = 0
[pid 13192] exit_group(0 <unfinished ...>
[pid 13193] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13192] <... exit_group resumed>)   = ?
[pid 13193] <... futex resumed>)        = ?
[pid 13193] +++ exited with 0 +++
[pid 13192] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13192, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13194
./strace-static-x86_64: Process 13194 attached
[pid 13194] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13194] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13194] setpgid(0, 0)               = 0
[pid 13194] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13194] write(3, "1000", 4executing program
)         = 4
[pid 13194] close(3)                    = 0
[pid 13194] write(1, "executing program\n", 18) = 18
[pid 13194] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13194] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13194] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13194] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13194] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13194] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13194] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13195 attached
 => {parent_tid=[13195]}, 88) = 13195
[pid 13195] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13194] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13194] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13194] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13195] <... set_robust_list resumed>) = 0
[pid 13195] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13195] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13195] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13194] <... futex resumed>)        = 0
[pid 13194] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13194] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13195] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13195] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13194] <... futex resumed>)        = 0
[pid 13194] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13195] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 13194] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13195] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 13195] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13194] <... futex resumed>)        = 0
[pid 13194] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13194] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13195] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13195] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13194] <... futex resumed>)        = 0
[pid 13194] exit_group(0 <unfinished ...>
[pid 13195] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13194] <... exit_group resumed>)   = ?
[pid 13195] <... futex resumed>)        = ?
[pid 13195] +++ exited with 0 +++
[pid 13194] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13194, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13196
./strace-static-x86_64: Process 13196 attached
[pid 13196] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13196] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13196] setpgid(0, 0)               = 0
[pid 13196] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13196] write(3, "1000", 4)         = 4
[pid 13196] close(3)                    = 0
executing program
[pid 13196] write(1, "executing program\n", 18) = 18
[pid 13196] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13196] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13196] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13196] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13196] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13196] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13196] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13197]}, 88) = 13197
./strace-static-x86_64: Process 13197 attached
[pid 13197] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13197] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13197] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13196] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13196] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13197] <... futex resumed>)        = 0
[pid 13197] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13197] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13196] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13197] <... futex resumed>)        = 0
[pid 13197] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13196] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13196] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13197] <... futex resumed>)        = 0
[pid 13197] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13197] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13197] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13196] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13196] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13197] <... futex resumed>)        = 0
[pid 13196] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13197] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13197] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13196] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13197] <... futex resumed>)        = 0
[pid 13197] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13196] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13197] <... futex resumed>)        = 0
[pid 13197] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13197] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13196] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13197] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13196] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13196] exit_group(0)               = ?
[pid 13197] <... futex resumed>)        = ?
[pid 13197] +++ exited with 0 +++
[pid 13196] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13196, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13198
./strace-static-x86_64: Process 13198 attached
[pid 13198] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13198] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13198] setpgid(0, 0)               = 0
[pid 13198] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13198] write(3, "1000", 4)         = 4
[pid 13198] close(3)                    = 0
[pid 13198] write(1, "executing program\n", 18executing program
) = 18
[pid 13198] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13198] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13198] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13198] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13198] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13198] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13198] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13199 attached
 => {parent_tid=[13199]}, 88) = 13199
[pid 13199] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13198] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13199] <... set_robust_list resumed>) = 0
[pid 13198] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13199] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13198] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13199] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13198] <... futex resumed>)        = 0
[pid 13198] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13199] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13199] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13198] <... futex resumed>)        = 0
[pid 13199] <... futex resumed>)        = 1
[pid 13198] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13199] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 13198] <... futex resumed>)        = 0
[pid 13198] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13199] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 13199] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13198] <... futex resumed>)        = 0
[pid 13199] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13198] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13199] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13198] <... futex resumed>)        = 0
[pid 13199] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 13198] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13199] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 13199] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13198] <... futex resumed>)        = 0
[pid 13199] <... futex resumed>)        = 1
[pid 13198] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13198] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13199] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13199] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13198] <... futex resumed>)        = 0
[pid 13199] <... futex resumed>)        = 1
[pid 13198] exit_group(0 <unfinished ...>
[pid 13199] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13198] <... exit_group resumed>)   = ?
[pid 13199] <... futex resumed>)        = -1 (errno 18446744073709551414)
[pid 13199] +++ exited with 0 +++
[pid 13198] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13198, si_uid=0, si_status=0, 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 13200 attached
, child_tidptr=0x55558842d690) = 13200
[pid 13200] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13200] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13200] setpgid(0, 0)               = 0
[pid 13200] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13200] write(3, "1000", 4)         = 4
[pid 13200] close(3)                    = 0
executing program
[pid 13200] write(1, "executing program\n", 18) = 18
[pid 13200] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13200] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13200] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13200] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13200] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13200] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13200] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13201 attached
 => {parent_tid=[13201]}, 88) = 13201
[pid 13200] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13200] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13200] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13201] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13201] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13201] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13201] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13200] <... futex resumed>)        = 0
[pid 13201] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13200] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13201] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13200] <... futex resumed>)        = 0
[pid 13200] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13201] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13201] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13200] <... futex resumed>)        = 0
[pid 13200] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13200] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13201] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13201] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13200] <... futex resumed>)        = 0
[pid 13200] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13200] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13201] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13201] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13200] <... futex resumed>)        = 0
[pid 13200] exit_group(0)               = ?
[pid 13201] +++ exited with 0 +++
[pid 13200] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13200, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13202
./strace-static-x86_64: Process 13202 attached
[pid 13202] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13202] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13202] setpgid(0, 0)               = 0
[pid 13202] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13202] write(3, "1000", 4)         = 4
[pid 13202] close(3)                    = 0
[pid 13202] write(1, "executing program\n", 18executing program
) = 18
[pid 13202] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13202] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13202] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13202] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13202] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13202] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13202] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13203 attached
 <unfinished ...>
[pid 13203] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13203] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13203] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13202] <... clone3 resumed> => {parent_tid=[13203]}, 88) = 13203
[pid 13202] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13202] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13203] <... futex resumed>)        = 0
[pid 13203] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13203] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13203] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13202] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13202] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13203] <... futex resumed>)        = 0
[pid 13203] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13203] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13203] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13202] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13202] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13203] <... futex resumed>)        = 0
[pid 13202] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13203] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13203] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13202] <... futex resumed>)        = 0
[pid 13203] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13202] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13203] <... futex resumed>)        = 0
[pid 13202] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13203] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13203] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13202] <... futex resumed>)        = 0
[pid 13203] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13202] exit_group(0)               = ?
[pid 13203] <... futex resumed>)        = ?
[pid 13203] +++ exited with 0 +++
[pid 13202] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13202, si_uid=0, si_status=0, 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 13204 attached
, child_tidptr=0x55558842d690) = 13204
[pid 13204] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13204] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13204] setpgid(0, 0)               = 0
[pid 13204] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13204] write(3, "1000", 4)         = 4
[pid 13204] close(3)                    = 0
[pid 13204] write(1, "executing program\n", 18executing program
) = 18
[pid 13204] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13204] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13204] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13204] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13204] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13204] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13204] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13205 attached
 <unfinished ...>
[pid 13205] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13205] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13205] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13204] <... clone3 resumed> => {parent_tid=[13205]}, 88) = 13205
[pid 13204] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13204] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13205] <... futex resumed>)        = 0
[pid 13205] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13205] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13205] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13204] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13204] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13205] <... futex resumed>)        = 0
[pid 13205] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13205] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13205] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13204] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13204] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13205] <... futex resumed>)        = 0
[pid 13205] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13205] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13205] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13204] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13204] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13205] <... futex resumed>)        = 0
[pid 13205] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13205] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13205] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13204] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13204] exit_group(0)               = ?
[pid 13205] <... futex resumed>)        = ?
[pid 13205] +++ exited with 0 +++
[pid 13204] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13204, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13206
./strace-static-x86_64: Process 13206 attached
[pid 13206] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13206] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13206] setpgid(0, 0)               = 0
[pid 13206] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13206] write(3, "1000", 4executing program
)         = 4
[pid 13206] close(3)                    = 0
[pid 13206] write(1, "executing program\n", 18) = 18
[pid 13206] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13206] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13206] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13206] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13206] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13206] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13206] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13207 attached
 => {parent_tid=[13207]}, 88) = 13207
[pid 13207] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13207] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13207] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13206] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13206] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13207] <... futex resumed>)        = 0
[pid 13207] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 13206] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13207] <... 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 13207] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13206] <... futex resumed>)        = 0
[pid 13206] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13206] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13207] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13207] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13206] <... futex resumed>)        = 0
[pid 13206] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13206] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13207] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13207] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13206] <... futex resumed>)        = 0
[pid 13206] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13206] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13207] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13207] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13206] <... futex resumed>)        = 0
[pid 13206] exit_group(0)               = ?
[pid 13207] +++ exited with 0 +++
[pid 13206] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13206, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13208
./strace-static-x86_64: Process 13208 attached
[pid 13208] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13208] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13208] setpgid(0, 0)               = 0
[pid 13208] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13208] write(3, "1000", 4)         = 4
[pid 13208] close(3)                    = 0
[pid 13208] write(1, "executing program\n", 18executing program
) = 18
[pid 13208] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13208] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13208] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13208] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13208] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13208] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13208] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13209 attached
 => {parent_tid=[13209]}, 88) = 13209
[pid 13209] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13209] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13209] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13208] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13208] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13209] <... futex resumed>)        = 0
[pid 13208] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13209] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13209] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13209] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13208] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13208] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13209] <... futex resumed>)        = 0
[pid 13209] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13209] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13209] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13208] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13208] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13209] <... futex resumed>)        = 0
[pid 13209] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13209] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13209] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13208] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13208] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13209] <... futex resumed>)        = 0
[pid 13209] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13208] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13209] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13209] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13209] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13208] <... futex resumed>)        = 0
[pid 13208] exit_group(0)               = ?
[pid 13209] <... futex resumed>)        = ?
[pid 13209] +++ exited with 0 +++
[pid 13208] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13208, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13210
./strace-static-x86_64: Process 13210 attached
[pid 13210] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13210] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13210] setpgid(0, 0)               = 0
[pid 13210] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13210] write(3, "1000", 4)         = 4
[pid 13210] close(3)                    = 0
[pid 13210] write(1, "executing program\n", 18executing program
) = 18
[pid 13210] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13210] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13210] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13210] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13210] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13210] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13210] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13211 attached
 => {parent_tid=[13211]}, 88) = 13211
[pid 13211] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13211] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13210] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13211] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13211] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13210] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13210] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13211] <... futex resumed>)        = 0
[pid 13211] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13211] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13210] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13211] <... futex resumed>)        = 0
[pid 13210] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13211] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 13210] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13210] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13211] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 13211] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13210] <... futex resumed>)        = 0
[pid 13211] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13210] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13211] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13210] <... futex resumed>)        = 0
[pid 13211] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 13210] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13211] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 13211] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13210] <... futex resumed>)        = 0
[pid 13211] <... futex resumed>)        = 1
[pid 13210] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13210] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13211] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13211] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13210] <... futex resumed>)        = 0
[pid 13211] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13210] exit_group(0)               = ?
[pid 13211] <... futex resumed>)        = ?
[pid 13211] +++ exited with 0 +++
[pid 13210] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13210, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13212
./strace-static-x86_64: Process 13212 attached
[pid 13212] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13212] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13212] setpgid(0, 0)               = 0
[pid 13212] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13212] write(3, "1000", 4)         = 4
[pid 13212] close(3)                    = 0
[pid 13212] write(1, "executing program\n", 18executing program
) = 18
[pid 13212] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13212] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13212] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13212] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13212] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13212] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13212] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13213 attached
 => {parent_tid=[13213]}, 88) = 13213
[pid 13213] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13213] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13213] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13212] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13212] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13213] <... futex resumed>)        = 0
[pid 13212] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13213] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13213] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13213] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13212] <... futex resumed>)        = 0
[pid 13212] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13213] <... futex resumed>)        = 0
[pid 13213] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 13212] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13213] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 13213] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13213] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13212] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13212] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13213] <... futex resumed>)        = 0
[pid 13213] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13213] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13213] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13212] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13212] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13213] <... futex resumed>)        = 0
[pid 13213] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13212] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13213] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13213] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13213] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13212] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13212] exit_group(0)               = ?
[pid 13213] <... futex resumed>)        = ?
[pid 13213] +++ exited with 0 +++
[pid 13212] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13212, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13214
./strace-static-x86_64: Process 13214 attached
[pid 13214] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13214] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13214] setpgid(0, 0)               = 0
[pid 13214] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13214] write(3, "1000", 4)         = 4
[pid 13214] close(3)                    = 0
[pid 13214] write(1, "executing program\n", 18executing program
) = 18
[pid 13214] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13214] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13214] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13214] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13214] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13214] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13214] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13215 attached
 => {parent_tid=[13215]}, 88) = 13215
[pid 13215] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13215] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13215] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13214] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13214] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13215] <... futex resumed>)        = 0
[pid 13214] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13215] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13215] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13215] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13214] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13214] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13215] <... futex resumed>)        = 0
[pid 13215] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13215] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13215] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13214] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13214] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13215] <... futex resumed>)        = 0
[pid 13215] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 13214] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13215] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 13215] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13215] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13214] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13214] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13215] <... futex resumed>)        = 0
[pid 13215] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13214] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13215] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13215] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13215] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13214] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13214] exit_group(0)               = ?
[pid 13215] <... futex resumed>)        = ?
[pid 13215] +++ exited with 0 +++
[pid 13214] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13214, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13216
./strace-static-x86_64: Process 13216 attached
[pid 13216] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13216] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13216] setpgid(0, 0)               = 0
[pid 13216] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13216] write(3, "1000", 4)         = 4
[pid 13216] close(3)                    = 0
[pid 13216] write(1, "executing program\n", 18executing program
) = 18
[pid 13216] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13216] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13216] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13216] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13216] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13216] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13216] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13217]}, 88) = 13217
[pid 13216] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13216] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13216] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 13217 attached
 <unfinished ...>
[pid 13217] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13217] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13217] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13217] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13216] <... futex resumed>)        = 0
[pid 13216] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13216] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13217] <... futex resumed>)        = 1
[pid 13217] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13217] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13216] <... futex resumed>)        = 0
[pid 13216] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13216] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13217] <... futex resumed>)        = 1
[pid 13217] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13217] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13216] <... futex resumed>)        = 0
[pid 13216] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13216] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13217] <... futex resumed>)        = 1
[pid 13217] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13217] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13216] <... futex resumed>)        = 0
[pid 13216] exit_group(0)               = ?
[pid 13217] +++ exited with 0 +++
[pid 13216] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13216, si_uid=0, si_status=0, 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 13218 attached
, child_tidptr=0x55558842d690) = 13218
[pid 13218] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13218] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13218] setpgid(0, 0)               = 0
[pid 13218] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13218] write(3, "1000", 4)         = 4
[pid 13218] close(3)                    = 0
[pid 13218] write(1, "executing program\n", 18executing program
) = 18
[pid 13218] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13218] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13218] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13218] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13218] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13218] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13218] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13219 attached
 <unfinished ...>
[pid 13219] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13219] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13219] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13218] <... clone3 resumed> => {parent_tid=[13219]}, 88) = 13219
[pid 13218] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13218] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13219] <... futex resumed>)        = 0
[pid 13219] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 13218] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13219] <... 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 13219] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13219] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13218] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13218] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13219] <... futex resumed>)        = 0
[pid 13219] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13218] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13219] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13219] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13218] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13218] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13219] <... futex resumed>)        = 0
[pid 13219] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13219] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13219] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13218] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13218] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13219] <... futex resumed>)        = 0
[pid 13218] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13219] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13219] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13219] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13218] <... futex resumed>)        = 0
[pid 13218] exit_group(0)               = ?
[pid 13219] <... futex resumed>)        = ?
[pid 13219] +++ exited with 0 +++
[pid 13218] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13218, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13220
./strace-static-x86_64: Process 13220 attached
[pid 13220] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13220] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13220] setpgid(0, 0)               = 0
[pid 13220] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13220] write(3, "1000", 4)         = 4
[pid 13220] close(3)                    = 0
executing program
[pid 13220] write(1, "executing program\n", 18) = 18
[pid 13220] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13220] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13220] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13220] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13220] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13220] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13220] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13221 attached
 => {parent_tid=[13221]}, 88) = 13221
[pid 13220] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13220] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13221] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13220] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13221] <... set_robust_list resumed>) = 0
[pid 13221] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13221] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13221] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13220] <... futex resumed>)        = 0
[pid 13220] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13220] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13221] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13221] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13220] <... futex resumed>)        = 0
[pid 13221] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13220] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13220] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13221] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13221] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13221] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13220] <... futex resumed>)        = 0
[pid 13220] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13220] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13221] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13221] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13220] <... futex resumed>)        = 0
[pid 13220] exit_group(0 <unfinished ...>
[pid 13221] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13220] <... exit_group resumed>)   = ?
[pid 13221] <... futex resumed>)        = ?
[pid 13221] +++ exited with 0 +++
[pid 13220] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13220, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13222
./strace-static-x86_64: Process 13222 attached
[pid 13222] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13222] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13222] setpgid(0, 0)               = 0
[pid 13222] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13222] write(3, "1000", 4)         = 4
[pid 13222] close(3)                    = 0
executing program
[pid 13222] write(1, "executing program\n", 18) = 18
[pid 13222] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13222] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13222] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13222] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13222] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13222] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13222] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13223]}, 88) = 13223
[pid 13222] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13222] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13222] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 13223 attached
 <unfinished ...>
[pid 13223] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13223] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13223] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13223] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13222] <... futex resumed>)        = 0
[pid 13222] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13222] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13223] <... futex resumed>)        = 1
[pid 13223] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13223] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13222] <... futex resumed>)        = 0
[pid 13222] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13222] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13223] <... futex resumed>)        = 1
[pid 13223] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13223] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13222] <... futex resumed>)        = 0
[pid 13222] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13222] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13223] <... futex resumed>)        = 1
[pid 13223] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13223] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13222] <... futex resumed>)        = 0
[pid 13222] exit_group(0)               = ?
[pid 13223] <... futex resumed>)        = ?
[pid 13223] +++ exited with 0 +++
[pid 13222] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13222, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13224
./strace-static-x86_64: Process 13224 attached
[pid 13224] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13224] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13224] setpgid(0, 0)               = 0
[pid 13224] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13224] write(3, "1000", 4)         = 4
[pid 13224] close(3)                    = 0
[pid 13224] write(1, "executing program\n", 18executing program
) = 18
[pid 13224] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13224] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13224] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13224] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13224] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13224] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13224] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13225 attached
 <unfinished ...>
[pid 13225] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13225] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13225] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13224] <... clone3 resumed> => {parent_tid=[13225]}, 88) = 13225
[pid 13224] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13224] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13225] <... futex resumed>)        = 0
[pid 13225] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13225] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13225] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13224] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13224] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13225] <... futex resumed>)        = 0
[pid 13225] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13224] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13225] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13225] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13224] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13224] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13225] <... futex resumed>)        = 0
[pid 13225] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13225] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13225] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13224] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13224] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13225] <... futex resumed>)        = 0
[pid 13225] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13225] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13225] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13224] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13224] exit_group(0)               = ?
[pid 13225] <... futex resumed>)        = ?
[pid 13225] +++ exited with 0 +++
[pid 13224] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13224, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13226
./strace-static-x86_64: Process 13226 attached
[pid 13226] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13226] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13226] setpgid(0, 0)               = 0
[pid 13226] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13226] write(3, "1000", 4)         = 4
executing program
[pid 13226] close(3)                    = 0
[pid 13226] write(1, "executing program\n", 18) = 18
[pid 13226] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13226] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13226] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13226] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13226] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13226] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13226] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13227]}, 88) = 13227
[pid 13226] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13226] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13226] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 13227 attached
 <unfinished ...>
[pid 13227] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13227] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13227] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13227] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13226] <... futex resumed>)        = 0
[pid 13226] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13226] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13227] <... futex resumed>)        = 1
[pid 13227] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13227] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13226] <... futex resumed>)        = 0
[pid 13226] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13226] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13227] <... futex resumed>)        = 1
[pid 13227] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13227] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13226] <... futex resumed>)        = 0
[pid 13226] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13226] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13227] <... futex resumed>)        = 1
[pid 13227] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13227] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13226] <... futex resumed>)        = 0
[pid 13226] exit_group(0)               = ?
[pid 13227] <... futex resumed>)        = ?
[pid 13227] +++ exited with 0 +++
[pid 13226] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13226, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13228
./strace-static-x86_64: Process 13228 attached
[pid 13228] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13228] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13228] setpgid(0, 0)               = 0
[pid 13228] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13228] write(3, "1000", 4)         = 4
[pid 13228] close(3)                    = 0
[pid 13228] write(1, "executing program\n", 18executing program
) = 18
[pid 13228] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13228] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13228] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13228] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13228] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13228] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13228] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13229 attached
 => {parent_tid=[13229]}, 88) = 13229
[pid 13229] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13228] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13229] <... set_robust_list resumed>) = 0
[pid 13228] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13229] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13228] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13229] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13228] <... futex resumed>)        = 0
[pid 13228] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13229] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13229] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13228] <... futex resumed>)        = 0
[pid 13229] <... futex resumed>)        = 1
[pid 13228] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13229] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 13228] <... futex resumed>)        = 0
[pid 13229] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 13228] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13229] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13228] <... futex resumed>)        = 0
[pid 13228] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13228] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13229] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13229] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13228] <... futex resumed>)        = 0
[pid 13228] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13228] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13229] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13229] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13228] <... futex resumed>)        = 0
[pid 13229] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13228] exit_group(0)               = ?
[pid 13229] <... futex resumed>)        = ?
[pid 13229] +++ exited with 0 +++
[pid 13228] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13228, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13230
./strace-static-x86_64: Process 13230 attached
[pid 13230] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13230] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13230] setpgid(0, 0)               = 0
[pid 13230] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13230] write(3, "1000", 4)         = 4
[pid 13230] close(3)                    = 0
executing program
[pid 13230] write(1, "executing program\n", 18) = 18
[pid 13230] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13230] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13230] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13230] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13230] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13230] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13230] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13231 attached
 => {parent_tid=[13231]}, 88) = 13231
[pid 13231] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13230] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13231] <... set_robust_list resumed>) = 0
[pid 13230] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13230] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13231] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13231] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13231] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13230] <... futex resumed>)        = 0
[pid 13230] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13230] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13231] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13231] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13230] <... futex resumed>)        = 0
[pid 13230] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13230] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13231] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13231] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13230] <... futex resumed>)        = 0
[pid 13230] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13230] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13231] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13231] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13230] <... futex resumed>)        = 0
[pid 13230] exit_group(0)               = ?
[pid 13231] +++ exited with 0 +++
[pid 13230] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13230, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13232
./strace-static-x86_64: Process 13232 attached
[pid 13232] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13232] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13232] setpgid(0, 0)               = 0
[pid 13232] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13232] write(3, "1000", 4)         = 4
[pid 13232] close(3)                    = 0
executing program
[pid 13232] write(1, "executing program\n", 18) = 18
[pid 13232] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13232] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13232] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13232] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13232] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13232] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13232] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13233 attached
 => {parent_tid=[13233]}, 88) = 13233
[pid 13233] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13233] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13233] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13232] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13232] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13233] <... futex resumed>)        = 0
[pid 13233] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13233] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13233] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13232] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13232] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13233] <... futex resumed>)        = 0
[pid 13233] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13233] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13233] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13232] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13232] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13233] <... futex resumed>)        = 0
[pid 13233] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13233] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13233] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13232] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13232] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13233] <... futex resumed>)        = 0
[pid 13233] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13233] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13233] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13232] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13232] exit_group(0)               = ?
[pid 13233] <... futex resumed>)        = ?
[pid 13233] +++ exited with 0 +++
[pid 13232] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13232, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13234
./strace-static-x86_64: Process 13234 attached
[pid 13234] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13234] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13234] setpgid(0, 0)               = 0
[pid 13234] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13234] write(3, "1000", 4)         = 4
[pid 13234] close(3)                    = 0
[pid 13234] write(1, "executing program\n", 18executing program
) = 18
[pid 13234] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13234] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13234] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13234] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13234] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13234] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13234] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13235 attached
 => {parent_tid=[13235]}, 88) = 13235
[pid 13235] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13235] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13235] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13234] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13234] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13235] <... futex resumed>)        = 0
[pid 13234] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13235] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13235] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13235] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13234] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13234] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13235] <... futex resumed>)        = 0
[pid 13235] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13234] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13235] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13235] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13234] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13234] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13235] <... futex resumed>)        = 0
[pid 13234] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13235] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13235] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13234] <... futex resumed>)        = 0
[pid 13234] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13234] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13235] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13235] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13234] <... futex resumed>)        = 0
[pid 13235] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13234] exit_group(0)               = ?
[pid 13235] <... futex resumed>)        = ?
[pid 13235] +++ exited with 0 +++
[pid 13234] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13234, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13236
./strace-static-x86_64: Process 13236 attached
[pid 13236] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13236] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13236] setpgid(0, 0)               = 0
[pid 13236] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13236] write(3, "1000", 4)         = 4
[pid 13236] close(3)                    = 0
[pid 13236] write(1, "executing program\n", 18executing program
) = 18
[pid 13236] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13236] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13236] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13236] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13236] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13236] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13236] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13237]}, 88) = 13237
./strace-static-x86_64: Process 13237 attached
[pid 13237] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13237] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13237] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13236] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13236] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13237] <... futex resumed>)        = 0
[pid 13237] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 13236] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13237] <... 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 13237] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13237] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13236] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13236] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13237] <... futex resumed>)        = 0
[pid 13237] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 13236] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13237] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 13237] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13237] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13236] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13236] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13237] <... futex resumed>)        = 0
[pid 13237] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13237] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13237] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13236] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13236] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13237] <... futex resumed>)        = 0
[pid 13236] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13237] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13237] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13237] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13236] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13236] exit_group(0)               = ?
[pid 13237] <... futex resumed>)        = ?
[pid 13237] +++ exited with 0 +++
[pid 13236] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13236, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13239
./strace-static-x86_64: Process 13239 attached
[pid 13239] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13239] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13239] setpgid(0, 0)               = 0
[pid 13239] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13239] write(3, "1000", 4)         = 4
executing program
[pid 13239] close(3)                    = 0
[pid 13239] write(1, "executing program\n", 18) = 18
[pid 13239] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13239] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13239] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13239] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13239] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13239] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13239] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13240]}, 88) = 13240
[pid 13239] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13239] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13239] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 13240 attached
 <unfinished ...>
[pid 13240] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13240] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13240] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13240] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13239] <... futex resumed>)        = 0
[pid 13239] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13239] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13240] <... futex resumed>)        = 1
[pid 13240] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13240] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13239] <... futex resumed>)        = 0
[pid 13239] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13239] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13240] <... futex resumed>)        = 1
[pid 13240] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13240] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13239] <... futex resumed>)        = 0
[pid 13239] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13239] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13240] <... futex resumed>)        = 1
[pid 13240] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13240] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13239] <... futex resumed>)        = 0
[pid 13239] exit_group(0)               = ?
[pid 13240] <... futex resumed>)        = ?
[pid 13240] +++ exited with 0 +++
[pid 13239] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13239, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13241
./strace-static-x86_64: Process 13241 attached
[pid 13241] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13241] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13241] setpgid(0, 0)               = 0
[pid 13241] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13241] write(3, "1000", 4)         = 4
[pid 13241] close(3)                    = 0
[pid 13241] write(1, "executing program\n", 18executing program
) = 18
[pid 13241] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13241] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13241] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13241] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13241] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13241] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13241] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13242 attached
 => {parent_tid=[13242]}, 88) = 13242
[pid 13242] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13242] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13242] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13241] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13241] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13242] <... futex resumed>)        = 0
[pid 13242] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13242] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13242] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13241] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13241] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13242] <... futex resumed>)        = 0
[pid 13242] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13242] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13242] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13241] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13241] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13242] <... futex resumed>)        = 0
[pid 13242] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 13241] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13242] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 13242] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13241] <... futex resumed>)        = 0
[pid 13241] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13241] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13242] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13242] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13241] <... futex resumed>)        = 0
[pid 13242] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13241] exit_group(0)               = ?
[pid 13242] <... futex resumed>)        = ?
[pid 13242] +++ exited with 0 +++
[pid 13241] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13241, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13243
./strace-static-x86_64: Process 13243 attached
[pid 13243] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13243] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13243] setpgid(0, 0)               = 0
[pid 13243] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13243] write(3, "1000", 4)         = 4
[pid 13243] close(3)                    = 0
[pid 13243] write(1, "executing program\n", 18executing program
) = 18
[pid 13243] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13243] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13243] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13243] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13243] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13243] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13243] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13244 attached
 <unfinished ...>
[pid 13244] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13244] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13244] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13243] <... clone3 resumed> => {parent_tid=[13244]}, 88) = 13244
[pid 13243] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13243] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13244] <... futex resumed>)        = 0
[pid 13244] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13244] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13244] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13243] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13243] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13244] <... futex resumed>)        = 0
[pid 13244] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13244] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13244] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13243] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13243] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13244] <... futex resumed>)        = 0
[pid 13244] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13244] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13244] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13243] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13243] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13244] <... futex resumed>)        = 0
[pid 13244] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13244] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13244] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13243] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13243] exit_group(0)               = ?
[pid 13244] <... futex resumed>)        = ?
[pid 13244] +++ exited with 0 +++
[pid 13243] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13243, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13245
./strace-static-x86_64: Process 13245 attached
[pid 13245] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13245] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13245] setpgid(0, 0)               = 0
[pid 13245] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13245] write(3, "1000", 4)         = 4
[pid 13245] close(3)                    = 0
[pid 13245] write(1, "executing program\n", 18executing program
) = 18
[pid 13245] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13245] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13245] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13245] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13245] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13245] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13245] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13246 attached
 => {parent_tid=[13246]}, 88) = 13246
[pid 13246] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13245] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13246] <... set_robust_list resumed>) = 0
[pid 13245] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13246] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13245] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13246] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13245] <... futex resumed>)        = 0
[pid 13245] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13246] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13246] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13245] <... futex resumed>)        = 0
[pid 13245] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13245] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13246] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13246] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13245] <... futex resumed>)        = 0
[pid 13245] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13245] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13246] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13246] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13245] <... futex resumed>)        = 0
[pid 13245] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13245] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13246] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13246] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13245] <... futex resumed>)        = 0
[pid 13245] exit_group(0)               = ?
[pid 13246] +++ exited with 0 +++
[pid 13245] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13245, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13247
./strace-static-x86_64: Process 13247 attached
[pid 13247] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13247] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13247] setpgid(0, 0)               = 0
[pid 13247] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13247] write(3, "1000", 4)         = 4
[pid 13247] close(3)                    = 0
executing program
[pid 13247] write(1, "executing program\n", 18) = 18
[pid 13247] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13247] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13247] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13247] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13247] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13247] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13247] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13248 attached
 => {parent_tid=[13248]}, 88) = 13248
[pid 13247] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13248] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13247] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13247] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13247] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13248] <... set_robust_list resumed>) = 0
[pid 13248] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13248] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13248] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13247] <... futex resumed>)        = 0
[pid 13247] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13247] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13248] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13248] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13247] <... futex resumed>)        = 0
[pid 13247] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13247] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13248] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13248] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13247] <... futex resumed>)        = 0
[pid 13247] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13247] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13248] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13248] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13247] <... futex resumed>)        = 0
[pid 13247] exit_group(0)               = ?
[pid 13248] +++ exited with 0 +++
[pid 13247] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13247, si_uid=0, si_status=0, 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 13249 attached
, child_tidptr=0x55558842d690) = 13249
[pid 13249] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13249] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13249] setpgid(0, 0)               = 0
[pid 13249] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13249] write(3, "1000", 4)         = 4
[pid 13249] close(3)                    = 0
executing program
[pid 13249] write(1, "executing program\n", 18) = 18
[pid 13249] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13249] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13249] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13249] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13249] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13249] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13249] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13250 attached
 => {parent_tid=[13250]}, 88) = 13250
[pid 13249] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13249] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13249] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13250] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13250] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13250] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13250] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13249] <... futex resumed>)        = 0
[pid 13249] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13249] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13250] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13250] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13249] <... futex resumed>)        = 0
[pid 13249] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13249] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13250] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13250] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13249] <... futex resumed>)        = 0
[pid 13249] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13249] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13250] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13250] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13249] <... futex resumed>)        = 0
[pid 13250] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13249] exit_group(0)               = ?
[pid 13250] <... futex resumed>)        = ?
[pid 13250] +++ exited with 0 +++
[pid 13249] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13249, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13251
./strace-static-x86_64: Process 13251 attached
[pid 13251] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13251] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13251] setpgid(0, 0)               = 0
[pid 13251] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13251] write(3, "1000", 4)         = 4
[pid 13251] close(3)                    = 0
[pid 13251] write(1, "executing program\n", 18executing program
) = 18
[pid 13251] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13251] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13251] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13251] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13251] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13251] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13251] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13252 attached
 => {parent_tid=[13252]}, 88) = 13252
[pid 13252] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13252] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13252] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13251] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13251] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13252] <... futex resumed>)        = 0
[pid 13252] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 13251] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13252] <... 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 13252] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13252] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13251] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13251] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13252] <... futex resumed>)        = 0
[pid 13252] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13252] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13252] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13251] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13251] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13252] <... futex resumed>)        = 0
[pid 13252] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13252] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13252] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13251] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13251] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13252] <... futex resumed>)        = 0
[pid 13252] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13251] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13252] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13252] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13252] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13251] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13251] exit_group(0)               = ?
[pid 13252] <... futex resumed>)        = ?
[pid 13252] +++ exited with 0 +++
[pid 13251] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13251, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13253
./strace-static-x86_64: Process 13253 attached
[pid 13253] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13253] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13253] setpgid(0, 0)               = 0
[pid 13253] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13253] write(3, "1000", 4)         = 4
[pid 13253] close(3)                    = 0
executing program
[pid 13253] write(1, "executing program\n", 18) = 18
[pid 13253] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13253] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13253] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13253] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13253] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13253] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13253] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13254 attached
 => {parent_tid=[13254]}, 88) = 13254
[pid 13254] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13253] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13253] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13253] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13254] <... set_robust_list resumed>) = 0
[pid 13254] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13254] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13254] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13254] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13253] <... futex resumed>)        = 0
[pid 13253] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13253] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13254] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13254] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13254] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13254] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13253] <... futex resumed>)        = 0
[pid 13253] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13253] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13254] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13254] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13254] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13253] <... futex resumed>)        = 0
[pid 13254] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13253] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13254] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13253] <... futex resumed>)        = 0
[pid 13254] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13253] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13254] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13254] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13254] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13253] <... futex resumed>)        = 0
[pid 13253] exit_group(0)               = ?
[pid 13254] <... futex resumed>)        = ?
[pid 13254] +++ exited with 0 +++
[pid 13253] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13253, si_uid=0, si_status=0, 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 13255 attached
 <unfinished ...>
[pid 13255] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13255] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13255] setpgid(0, 0)               = 0
[pid 13255] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   555] <... clone resumed>, child_tidptr=0x55558842d690) = 13255
[pid 13255] <... openat resumed>)       = 3
[pid 13255] write(3, "1000", 4)         = 4
executing program
[pid 13255] close(3)                    = 0
[pid 13255] write(1, "executing program\n", 18) = 18
[pid 13255] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13255] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13255] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13255] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13255] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13255] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13255] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13256 attached
 => {parent_tid=[13256]}, 88) = 13256
[pid 13255] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13255] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13255] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13256] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13256] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13256] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13256] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13255] <... futex resumed>)        = 0
[pid 13255] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13255] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13256] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13256] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13255] <... futex resumed>)        = 0
[pid 13255] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13255] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13256] <... futex resumed>)        = 1
[pid 13256] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13256] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13255] <... futex resumed>)        = 0
[pid 13255] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13255] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13256] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13256] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13255] <... futex resumed>)        = 0
[pid 13255] exit_group(0)               = ?
[pid 13256] +++ exited with 0 +++
[pid 13255] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13255, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13257
./strace-static-x86_64: Process 13257 attached
[pid 13257] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13257] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13257] setpgid(0, 0)               = 0
[pid 13257] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13257] write(3, "1000", 4)         = 4
[pid 13257] close(3)                    = 0
[pid 13257] write(1, "executing program\n", 18executing program
) = 18
[pid 13257] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13257] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13257] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13257] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13257] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13257] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13257] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13258 attached
 <unfinished ...>
[pid 13258] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13258] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13258] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13257] <... clone3 resumed> => {parent_tid=[13258]}, 88) = 13258
[pid 13257] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13257] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13258] <... futex resumed>)        = 0
[pid 13258] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13258] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13258] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13257] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13257] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13258] <... futex resumed>)        = 0
[pid 13258] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13258] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13258] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13257] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13257] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13258] <... futex resumed>)        = 0
[pid 13258] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13258] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13258] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13257] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13257] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13258] <... futex resumed>)        = 0
[pid 13258] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13258] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13258] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13257] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13257] exit_group(0)               = ?
[pid 13258] <... futex resumed>)        = ?
[pid 13258] +++ exited with 0 +++
[pid 13257] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13257, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13259
./strace-static-x86_64: Process 13259 attached
[pid 13259] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13259] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13259] setpgid(0, 0)               = 0
[pid 13259] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13259] write(3, "1000", 4)         = 4
executing program
[pid 13259] close(3)                    = 0
[pid 13259] write(1, "executing program\n", 18) = 18
[pid 13259] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13259] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13259] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13259] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13259] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13259] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13259] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13260 attached
 => {parent_tid=[13260]}, 88) = 13260
[pid 13259] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13259] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13259] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13260] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13260] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13260] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13260] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13259] <... futex resumed>)        = 0
[pid 13259] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13259] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13260] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13260] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13259] <... futex resumed>)        = 0
[pid 13259] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13259] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13260] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13260] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13259] <... futex resumed>)        = 0
[pid 13259] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13259] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13260] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13260] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13259] <... futex resumed>)        = 0
[pid 13260] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13259] exit_group(0)               = ?
[pid 13260] <... futex resumed>)        = ?
[pid 13260] +++ exited with 0 +++
[pid 13259] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13259, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13261
./strace-static-x86_64: Process 13261 attached
[pid 13261] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13261] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13261] setpgid(0, 0)               = 0
[pid 13261] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13261] write(3, "1000", 4)         = 4
[pid 13261] close(3)                    = 0
[pid 13261] write(1, "executing program\n", 18executing program
) = 18
[pid 13261] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13261] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13261] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13261] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13261] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13261] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13261] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13262 attached
 <unfinished ...>
[pid 13262] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13262] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13262] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13261] <... clone3 resumed> => {parent_tid=[13262]}, 88) = 13262
[pid 13261] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13261] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13262] <... futex resumed>)        = 0
[pid 13262] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13262] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13262] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13261] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13261] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13262] <... futex resumed>)        = 0
[pid 13262] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13262] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13262] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13261] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13261] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13262] <... futex resumed>)        = 0
[pid 13262] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13262] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13262] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13261] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13261] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13262] <... futex resumed>)        = 0
[pid 13262] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13262] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13262] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13261] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13261] exit_group(0)               = ?
[pid 13262] <... futex resumed>)        = ?
[pid 13262] +++ exited with 0 +++
[pid 13261] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13261, si_uid=0, si_status=0, 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 13263 attached
, child_tidptr=0x55558842d690) = 13263
[pid 13263] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13263] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13263] setpgid(0, 0)               = 0
[pid 13263] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13263] write(3, "1000", 4)         = 4
[pid 13263] close(3)                    = 0
executing program
[pid 13263] write(1, "executing program\n", 18) = 18
[pid 13263] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13263] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13263] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13263] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13263] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13263] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13263] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13264]}, 88) = 13264
./strace-static-x86_64: Process 13264 attached
[pid 13263] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13264] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13263] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13264] <... set_robust_list resumed>) = 0
[pid 13263] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13264] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13263] <... futex resumed>)        = 0
[pid 13264] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13264] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 13263] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13264] <... 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 13264] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13263] <... futex resumed>)        = 0
[pid 13263] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13263] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13264] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13264] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13263] <... futex resumed>)        = 0
[pid 13263] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13263] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13264] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13264] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13263] <... futex resumed>)        = 0
[pid 13263] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13263] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13264] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13264] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13263] <... futex resumed>)        = 0
[pid 13263] exit_group(0)               = ?
[pid 13264] +++ exited with 0 +++
[pid 13263] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13263, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13265
./strace-static-x86_64: Process 13265 attached
[pid 13265] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13265] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13265] setpgid(0, 0)               = 0
[pid 13265] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13265] write(3, "1000", 4)         = 4
[pid 13265] close(3)                    = 0
[pid 13265] write(1, "executing program\n", 18executing program
) = 18
[pid 13265] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13265] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13265] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13265] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13265] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13265] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13265] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13266 attached
 <unfinished ...>
[pid 13266] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13266] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13266] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13265] <... clone3 resumed> => {parent_tid=[13266]}, 88) = 13266
[pid 13265] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13265] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13266] <... futex resumed>)        = 0
[pid 13266] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 13265] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13266] <... 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 13266] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13265] <... futex resumed>)        = 0
[pid 13265] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13265] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13266] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13266] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13265] <... futex resumed>)        = 0
[pid 13265] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13265] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13266] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13266] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13265] <... futex resumed>)        = 0
[pid 13265] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13265] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13266] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13266] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13265] <... futex resumed>)        = 0
[pid 13265] exit_group(0)               = ?
[pid 13266] +++ exited with 0 +++
[pid 13265] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13265, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13267
./strace-static-x86_64: Process 13267 attached
[pid 13267] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13267] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13267] setpgid(0, 0)               = 0
[pid 13267] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13267] write(3, "1000", 4)         = 4
[pid 13267] close(3)                    = 0
executing program
[pid 13267] write(1, "executing program\n", 18) = 18
[pid 13267] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13267] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13267] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13267] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13267] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13267] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13267] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13268]}, 88) = 13268
[pid 13267] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13267] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13267] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 13268 attached
 <unfinished ...>
[pid 13268] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13268] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13268] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13268] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13267] <... futex resumed>)        = 0
[pid 13267] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13267] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13268] <... futex resumed>)        = 1
[pid 13268] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13268] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13267] <... futex resumed>)        = 0
[pid 13267] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13267] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13268] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13268] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13267] <... futex resumed>)        = 0
[pid 13267] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13267] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13268] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13268] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13267] <... futex resumed>)        = 0
[pid 13267] exit_group(0 <unfinished ...>
[pid 13268] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13267] <... exit_group resumed>)   = ?
[pid 13268] <... futex resumed>)        = ?
[pid 13268] +++ exited with 0 +++
[pid 13267] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13267, 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=0x55558842d690) = 13269
./strace-static-x86_64: Process 13269 attached
[pid 13269] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13269] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13269] setpgid(0, 0)               = 0
[pid 13269] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13269] write(3, "1000", 4)         = 4
executing program
[pid 13269] close(3)                    = 0
[pid 13269] write(1, "executing program\n", 18) = 18
[pid 13269] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13269] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13269] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13269] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13269] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13269] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13269] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13270]}, 88) = 13270
./strace-static-x86_64: Process 13270 attached
[pid 13270] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13270] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13270] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13269] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13269] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13270] <... futex resumed>)        = 0
[pid 13270] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 13269] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13270] <... 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 13270] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13269] <... futex resumed>)        = 0
[pid 13269] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13269] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13270] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13270] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13269] <... futex resumed>)        = 0
[pid 13269] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13269] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13270] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13270] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13269] <... futex resumed>)        = 0
[pid 13269] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13269] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13270] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13270] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13269] <... futex resumed>)        = 0
[pid 13269] exit_group(0)               = ?
[pid 13270] +++ exited with 0 +++
[pid 13269] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13269, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13271
./strace-static-x86_64: Process 13271 attached
[pid 13271] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13271] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13271] setpgid(0, 0)               = 0
[pid 13271] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13271] write(3, "1000", 4)         = 4
[pid 13271] close(3)                    = 0
[pid 13271] write(1, "executing program\n", 18executing program
) = 18
[pid 13271] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13271] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13271] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13271] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13271] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13271] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13271] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13272]}, 88) = 13272
[pid 13271] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13271] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13271] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 13272 attached
 <unfinished ...>
[pid 13272] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13272] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13272] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13272] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13271] <... futex resumed>)        = 0
[pid 13271] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13271] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13272] <... futex resumed>)        = 1
[pid 13272] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13272] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13271] <... futex resumed>)        = 0
[pid 13271] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13271] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13272] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13272] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13271] <... futex resumed>)        = 0
[pid 13271] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13271] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13272] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13272] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13271] <... futex resumed>)        = 0
[pid 13271] exit_group(0)               = ?
[pid 13272] +++ exited with 0 +++
[pid 13271] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13271, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13273
./strace-static-x86_64: Process 13273 attached
[pid 13273] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13273] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13273] setpgid(0, 0)               = 0
[pid 13273] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13273] write(3, "1000", 4executing program
)         = 4
[pid 13273] close(3)                    = 0
[pid 13273] write(1, "executing program\n", 18) = 18
[pid 13273] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13273] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13273] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13273] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13273] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13273] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13273] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13274 attached
 => {parent_tid=[13274]}, 88) = 13274
[pid 13274] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13274] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13274] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13273] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13273] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13274] <... futex resumed>)        = 0
[pid 13274] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 13273] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13274] <... 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 13274] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13274] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13273] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13273] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13274] <... futex resumed>)        = 0
[pid 13274] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13274] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13274] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13273] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13273] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13274] <... futex resumed>)        = 0
[pid 13274] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13274] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13274] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13273] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13273] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13274] <... futex resumed>)        = 0
[pid 13274] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13274] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13274] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13273] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13273] exit_group(0)               = ?
[pid 13274] <... futex resumed>)        = ?
[pid 13274] +++ exited with 0 +++
[pid 13273] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13273, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13275
./strace-static-x86_64: Process 13275 attached
[pid 13275] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13275] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13275] setpgid(0, 0)               = 0
[pid 13275] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13275] write(3, "1000", 4)         = 4
[pid 13275] close(3)                    = 0
executing program
[pid 13275] write(1, "executing program\n", 18) = 18
[pid 13275] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13275] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13275] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13275] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13275] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13275] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13275] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13276 attached
 => {parent_tid=[13276]}, 88) = 13276
[pid 13275] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13275] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13275] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13276] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13276] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13276] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13276] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13275] <... futex resumed>)        = 0
[pid 13275] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13275] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13276] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13276] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13275] <... futex resumed>)        = 0
[pid 13275] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13275] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13276] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13276] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13275] <... futex resumed>)        = 0
[pid 13275] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13275] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13276] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13276] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13275] <... futex resumed>)        = 0
[pid 13275] exit_group(0)               = ?
[pid 13276] +++ exited with 0 +++
[pid 13275] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13275, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13277
./strace-static-x86_64: Process 13277 attached
[pid 13277] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13277] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13277] setpgid(0, 0)               = 0
[pid 13277] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13277] write(3, "1000", 4)         = 4
[pid 13277] close(3)                    = 0
[pid 13277] write(1, "executing program\n", 18executing program
) = 18
[pid 13277] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13277] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13277] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13277] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13277] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13277] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13277] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13278 attached
 <unfinished ...>
[pid 13278] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13278] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13278] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13277] <... clone3 resumed> => {parent_tid=[13278]}, 88) = 13278
[pid 13277] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13277] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13278] <... futex resumed>)        = 0
[pid 13278] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13278] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13278] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13277] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13277] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13278] <... futex resumed>)        = 0
[pid 13278] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13278] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13278] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13277] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13277] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13278] <... futex resumed>)        = 0
[pid 13278] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13278] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13278] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13277] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13277] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13278] <... futex resumed>)        = 0
[pid 13278] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13277] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13278] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13278] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13278] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13277] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13277] exit_group(0)               = ?
[pid 13278] <... futex resumed>)        = ?
[pid 13278] +++ exited with 0 +++
[pid 13277] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13277, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13279
./strace-static-x86_64: Process 13279 attached
[pid 13279] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13279] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13279] setpgid(0, 0)               = 0
[pid 13279] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13279] write(3, "1000", 4)         = 4
[pid 13279] close(3)                    = 0
[pid 13279] write(1, "executing program\n", 18executing program
) = 18
[pid 13279] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13279] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13279] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13279] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13279] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13279] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13279] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13280 attached
 => {parent_tid=[13280]}, 88) = 13280
[pid 13279] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13279] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13279] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13280] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13280] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13280] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13280] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13279] <... futex resumed>)        = 0
[pid 13279] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13279] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13280] <... futex resumed>)        = 1
[pid 13280] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13280] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13279] <... futex resumed>)        = 0
[pid 13279] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13279] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13280] <... futex resumed>)        = 1
[pid 13280] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13280] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13279] <... futex resumed>)        = 0
[pid 13279] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13279] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13280] <... futex resumed>)        = 1
[pid 13280] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13280] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13279] <... futex resumed>)        = 0
[pid 13279] exit_group(0)               = ?
[pid 13280] <... futex resumed>)        = ?
[pid 13280] +++ exited with 0 +++
[pid 13279] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13279, si_uid=0, si_status=0, 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 13281 attached
, child_tidptr=0x55558842d690) = 13281
[pid 13281] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13281] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13281] setpgid(0, 0)               = 0
[pid 13281] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13281] write(3, "1000", 4)         = 4
[pid 13281] close(3executing program
)                    = 0
[pid 13281] write(1, "executing program\n", 18) = 18
[pid 13281] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13281] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13281] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13281] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13281] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13281] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13281] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13282 attached
 => {parent_tid=[13282]}, 88) = 13282
[pid 13281] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13281] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13282] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13281] <... futex resumed>)        = 0
[pid 13282] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13281] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13282] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13282] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13282] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13281] <... futex resumed>)        = 0
[pid 13281] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13281] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13282] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13282] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13282] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13281] <... futex resumed>)        = 0
[pid 13281] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13281] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13282] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13282] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13282] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13281] <... futex resumed>)        = 0
[pid 13281] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13281] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13282] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13282] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13281] <... futex resumed>)        = 0
[pid 13282] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13281] exit_group(0)               = ?
[pid 13282] <... futex resumed>)        = ?
[pid 13282] +++ exited with 0 +++
[pid 13281] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13281, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13283
./strace-static-x86_64: Process 13283 attached
[pid 13283] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13283] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13283] setpgid(0, 0)               = 0
[pid 13283] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13283] write(3, "1000", 4)         = 4
[pid 13283] close(3)                    = 0
[pid 13283] write(1, "executing program\n", 18executing program
) = 18
[pid 13283] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13283] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13283] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13283] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13283] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13283] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13283] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13284 attached
 <unfinished ...>
[pid 13284] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13284] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13284] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13283] <... clone3 resumed> => {parent_tid=[13284]}, 88) = 13284
[pid 13283] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13283] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13284] <... futex resumed>)        = 0
[pid 13284] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13284] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13284] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13283] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13283] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13284] <... futex resumed>)        = 0
[pid 13284] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13284] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13284] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13283] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13283] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13284] <... futex resumed>)        = 0
[pid 13284] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13284] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13284] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13283] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13283] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13284] <... futex resumed>)        = 0
[pid 13284] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13284] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13284] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13283] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13283] exit_group(0)               = ?
[pid 13284] <... futex resumed>)        = ?
[pid 13284] +++ exited with 0 +++
[pid 13283] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13283, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13285
./strace-static-x86_64: Process 13285 attached
[pid 13285] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13285] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13285] setpgid(0, 0)               = 0
[pid 13285] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13285] write(3, "1000", 4)         = 4
[pid 13285] close(3)                    = 0
[pid 13285] write(1, "executing program\n", 18executing program
) = 18
[pid 13285] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13285] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13285] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13285] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13285] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13285] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13285] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13286 attached
 <unfinished ...>
[pid 13286] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13286] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13286] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13285] <... clone3 resumed> => {parent_tid=[13286]}, 88) = 13286
[pid 13285] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13285] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13286] <... futex resumed>)        = 0
[pid 13286] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13286] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13286] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13285] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13285] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13286] <... futex resumed>)        = 0
[pid 13286] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13286] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13286] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13285] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13285] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13286] <... futex resumed>)        = 0
[pid 13286] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13286] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13286] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13285] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13285] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13286] <... futex resumed>)        = 0
[pid 13286] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13286] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13286] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13285] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13285] exit_group(0)               = ?
[pid 13286] <... futex resumed>)        = ?
[pid 13286] +++ exited with 0 +++
[pid 13285] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13285, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13287
./strace-static-x86_64: Process 13287 attached
[pid 13287] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13287] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13287] setpgid(0, 0)               = 0
[pid 13287] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13287] write(3, "1000", 4)         = 4
[pid 13287] close(3)                    = 0
[pid 13287] write(1, "executing program\n", 18executing program
) = 18
[pid 13287] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13287] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13287] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13287] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13287] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13287] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13287] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13288 attached
 => {parent_tid=[13288]}, 88) = 13288
[pid 13288] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13288] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13288] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13287] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13287] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13288] <... futex resumed>)        = 0
[pid 13288] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13288] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13288] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13287] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13287] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13288] <... futex resumed>)        = 0
[pid 13288] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 13287] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13288] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 13288] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13288] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13287] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13287] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13288] <... futex resumed>)        = 0
[pid 13288] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13288] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13288] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13287] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13287] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13288] <... futex resumed>)        = 0
[pid 13288] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13287] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13288] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13288] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13287] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13287] exit_group(0)               = ?
[pid 13288] <... futex resumed>)        = ?
[pid 13288] +++ exited with 0 +++
[pid 13287] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13287, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13289
./strace-static-x86_64: Process 13289 attached
[pid 13289] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13289] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13289] setpgid(0, 0)               = 0
[pid 13289] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13289] write(3, "1000", 4)         = 4
[pid 13289] close(3)                    = 0
[pid 13289] write(1, "executing program\n", 18executing program
) = 18
[pid 13289] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13289] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13289] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13289] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13289] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13289] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13289] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13290 attached
 <unfinished ...>
[pid 13290] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13290] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13290] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13289] <... clone3 resumed> => {parent_tid=[13290]}, 88) = 13290
[pid 13289] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13289] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13290] <... futex resumed>)        = 0
[pid 13290] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13290] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13290] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13289] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13289] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13290] <... futex resumed>)        = 0
[pid 13290] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13290] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13290] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13289] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13289] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13290] <... futex resumed>)        = 0
[pid 13290] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13290] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13290] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13289] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13289] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13290] <... futex resumed>)        = 0
[pid 13290] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13289] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13290] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13290] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13290] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13289] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13289] exit_group(0)               = ?
[pid 13290] <... futex resumed>)        = ?
[pid 13290] +++ exited with 0 +++
[pid 13289] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13289, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13291
./strace-static-x86_64: Process 13291 attached
[pid 13291] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13291] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13291] setpgid(0, 0)               = 0
[pid 13291] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13291] write(3, "1000", 4)         = 4
[pid 13291] close(3)                    = 0
[pid 13291] write(1, "executing program\n", 18executing program
) = 18
[pid 13291] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13291] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13291] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13291] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13291] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13291] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13291] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13292 attached
 <unfinished ...>
[pid 13292] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13291] <... clone3 resumed> => {parent_tid=[13292]}, 88) = 13292
[pid 13292] <... set_robust_list resumed>) = 0
[pid 13292] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13292] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13291] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13291] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13291] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13292] <... futex resumed>)        = 0
[pid 13292] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13292] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13291] <... futex resumed>)        = 0
[pid 13291] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13291] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13292] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13292] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13291] <... futex resumed>)        = 0
[pid 13291] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13291] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13292] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13292] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13291] <... futex resumed>)        = 0
[pid 13291] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13291] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13292] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13292] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13291] <... futex resumed>)        = 0
[pid 13291] exit_group(0)               = ?
[pid 13292] +++ exited with 0 +++
[pid 13291] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13291, si_uid=0, si_status=0, 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 13293 attached
, child_tidptr=0x55558842d690) = 13293
[pid 13293] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13293] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13293] setpgid(0, 0)               = 0
[pid 13293] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13293] write(3, "1000", 4)         = 4
[pid 13293] close(3)                    = 0
[pid 13293] write(1, "executing program\n", 18executing program
) = 18
[pid 13293] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13293] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13293] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13293] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13293] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13293] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13293] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13294 attached
 => {parent_tid=[13294]}, 88) = 13294
[pid 13294] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13294] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13294] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13293] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13293] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13294] <... futex resumed>)        = 0
[pid 13294] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13294] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13294] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13293] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13293] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13294] <... futex resumed>)        = 0
[pid 13294] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13294] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13294] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13293] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13293] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13294] <... futex resumed>)        = 0
[pid 13294] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13294] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13294] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13293] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13293] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13294] <... futex resumed>)        = 0
[pid 13294] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13294] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13294] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13293] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13293] exit_group(0)               = ?
[pid 13294] <... futex resumed>)        = ?
[pid 13294] +++ exited with 0 +++
[pid 13293] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13293, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13295
./strace-static-x86_64: Process 13295 attached
[pid 13295] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13295] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13295] setpgid(0, 0)               = 0
[pid 13295] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13295] write(3, "1000", 4)         = 4
[pid 13295] close(3executing program
)                    = 0
[pid 13295] write(1, "executing program\n", 18) = 18
[pid 13295] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13295] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13295] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13295] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13295] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13295] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13295] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13296]}, 88) = 13296
[pid 13295] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13295] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13295] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 13296 attached
 <unfinished ...>
[pid 13296] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13296] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13296] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13296] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13295] <... futex resumed>)        = 0
[pid 13295] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13295] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13296] <... futex resumed>)        = 1
[pid 13296] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13296] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13295] <... futex resumed>)        = 0
[pid 13295] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13295] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13296] <... futex resumed>)        = 1
[pid 13296] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13296] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13295] <... futex resumed>)        = 0
[pid 13295] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13295] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13296] <... futex resumed>)        = 1
[pid 13296] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13296] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13295] <... futex resumed>)        = 0
[pid 13295] exit_group(0)               = ?
[pid 13296] <... futex resumed>)        = ?
[pid 13296] +++ exited with 0 +++
[pid 13295] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13295, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13297
./strace-static-x86_64: Process 13297 attached
[pid 13297] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13297] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13297] setpgid(0, 0)               = 0
[pid 13297] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13297] write(3, "1000", 4)         = 4
[pid 13297] close(3)                    = 0
[pid 13297] write(1, "executing program\n", 18executing program
) = 18
[pid 13297] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13297] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13297] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13297] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13297] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13297] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13297] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13298 attached
 => {parent_tid=[13298]}, 88) = 13298
[pid 13298] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13298] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13298] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13297] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13297] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13298] <... futex resumed>)        = 0
[pid 13298] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13298] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13298] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13297] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13297] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13298] <... futex resumed>)        = 0
[pid 13298] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13298] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13298] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13297] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13297] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13298] <... futex resumed>)        = 0
[pid 13297] <... futex resumed>)        = 1
[pid 13298] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13298] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13298] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13297] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13297] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13298] <... futex resumed>)        = 0
[pid 13298] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13298] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13298] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13297] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13297] exit_group(0)               = ?
[pid 13298] <... futex resumed>)        = ?
[pid 13298] +++ exited with 0 +++
[pid 13297] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13297, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13299
./strace-static-x86_64: Process 13299 attached
[pid 13299] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13299] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13299] setpgid(0, 0)               = 0
[pid 13299] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13299] write(3, "1000", 4)         = 4
[pid 13299] close(3)                    = 0
[pid 13299] write(1, "executing program\n", 18executing program
) = 18
[pid 13299] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13299] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13299] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13299] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13299] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13299] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13299] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13300]}, 88) = 13300
./strace-static-x86_64: Process 13300 attached
[pid 13300] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13300] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13300] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13299] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13299] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13300] <... futex resumed>)        = 0
[pid 13299] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13300] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13300] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13300] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13299] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13299] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13300] <... futex resumed>)        = 0
[pid 13300] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13300] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13300] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13299] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13299] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13300] <... futex resumed>)        = 0
[pid 13300] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 13299] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13300] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 13300] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13300] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13299] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13299] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13300] <... futex resumed>)        = 0
[pid 13300] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13299] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13300] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13300] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13300] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13299] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13299] exit_group(0)               = ?
[pid 13300] <... futex resumed>)        = ?
[pid 13300] +++ exited with 0 +++
[pid 13299] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13299, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13301
./strace-static-x86_64: Process 13301 attached
[pid 13301] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13301] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13301] setpgid(0, 0)               = 0
[pid 13301] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13301] write(3, "1000", 4)         = 4
[pid 13301] close(3)                    = 0
[pid 13301] write(1, "executing program\n", 18executing program
) = 18
[pid 13301] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13301] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13301] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13301] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13301] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13301] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13301] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13302 attached
 => {parent_tid=[13302]}, 88) = 13302
[pid 13302] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13301] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13301] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13301] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13302] <... set_robust_list resumed>) = 0
[pid 13302] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13302] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13302] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13302] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13301] <... futex resumed>)        = 0
[pid 13301] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13301] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13302] <... futex resumed>)        = 0
[pid 13302] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13302] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13301] <... futex resumed>)        = 0
[pid 13301] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13301] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13302] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13302] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13301] <... futex resumed>)        = 0
[pid 13301] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13301] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13302] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13302] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13301] <... futex resumed>)        = 0
[pid 13301] exit_group(0)               = ?
[pid 13302] +++ exited with 0 +++
[pid 13301] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13301, si_uid=0, si_status=0, 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 13303 attached
, child_tidptr=0x55558842d690) = 13303
[pid 13303] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13303] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13303] setpgid(0, 0)               = 0
[pid 13303] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13303] write(3, "1000", 4)         = 4
[pid 13303] close(3)                    = 0
[pid 13303] write(1, "executing program\n", 18executing program
) = 18
[pid 13303] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13303] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13303] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13303] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13303] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13303] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13303] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13304 attached
 <unfinished ...>
[pid 13304] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13303] <... clone3 resumed> => {parent_tid=[13304]}, 88) = 13304
[pid 13304] <... set_robust_list resumed>) = 0
[pid 13303] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13304] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13303] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13304] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13303] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13303] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13304] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13304] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13303] <... futex resumed>)        = 0
[pid 13303] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13303] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13304] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13304] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13303] <... futex resumed>)        = 0
[pid 13303] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13303] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13304] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13304] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13303] <... futex resumed>)        = 0
[pid 13304] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13303] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13303] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13304] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13304] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13304] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13303] <... futex resumed>)        = 0
[pid 13303] exit_group(0)               = ?
[pid 13304] +++ exited with 0 +++
[pid 13303] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13303, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13305
./strace-static-x86_64: Process 13305 attached
[pid 13305] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13305] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13305] setpgid(0, 0)               = 0
[pid 13305] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13305] write(3, "1000", 4)         = 4
[pid 13305] close(3)                    = 0
executing program
[pid 13305] write(1, "executing program\n", 18) = 18
[pid 13305] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13305] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13305] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13305] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13305] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13305] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13305] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13306 attached
 => {parent_tid=[13306]}, 88) = 13306
[pid 13305] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13305] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13305] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13306] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13306] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13306] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13306] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13305] <... futex resumed>)        = 0
[pid 13305] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13305] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13306] <... futex resumed>)        = 1
[pid 13306] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13306] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13305] <... futex resumed>)        = 0
[pid 13305] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13305] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13306] <... futex resumed>)        = 1
[pid 13306] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13306] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13305] <... futex resumed>)        = 0
[pid 13305] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13306] <... futex resumed>)        = 1
[pid 13305] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13306] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13306] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13305] <... futex resumed>)        = 0
[pid 13305] exit_group(0)               = ?
[pid 13306] <... futex resumed>)        = ?
[pid 13306] +++ exited with 0 +++
[pid 13305] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13305, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13307
./strace-static-x86_64: Process 13307 attached
[pid 13307] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13307] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13307] setpgid(0, 0)               = 0
[pid 13307] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13307] write(3, "1000", 4)         = 4
[pid 13307] close(3)                    = 0
[pid 13307] write(1, "executing program\n", 18executing program
) = 18
[pid 13307] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13307] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13307] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13307] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13307] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13307] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13307] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13308 attached
 => {parent_tid=[13308]}, 88) = 13308
[pid 13308] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13307] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13308] <... set_robust_list resumed>) = 0
[pid 13308] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13308] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13307] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13307] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13308] <... futex resumed>)        = 0
[pid 13308] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13308] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13308] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13307] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13307] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13308] <... futex resumed>)        = 0
[pid 13308] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13308] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13308] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13307] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13307] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13308] <... futex resumed>)        = 0
[pid 13307] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13308] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13308] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13308] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13307] <... futex resumed>)        = 0
[pid 13307] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13308] <... futex resumed>)        = 0
[pid 13307] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13308] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13308] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13307] <... futex resumed>)        = 0
[pid 13308] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13307] exit_group(0)               = ?
[pid 13308] <... futex resumed>)        = ?
[pid 13308] +++ exited with 0 +++
[pid 13307] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13307, si_uid=0, si_status=0, 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 13309 attached
, child_tidptr=0x55558842d690) = 13309
[pid 13309] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13309] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13309] setpgid(0, 0)               = 0
[pid 13309] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13309] write(3, "1000", 4)         = 4
[pid 13309] close(3)                    = 0
executing program
[pid 13309] write(1, "executing program\n", 18) = 18
[pid 13309] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13309] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13309] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13309] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13309] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13309] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13309] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13310 attached
 <unfinished ...>
[pid 13310] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13309] <... clone3 resumed> => {parent_tid=[13310]}, 88) = 13310
[pid 13310] <... set_robust_list resumed>) = 0
[pid 13309] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13310] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13309] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13310] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13309] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13310] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 13309] <... futex resumed>)        = 0
[pid 13310] <... 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 13310] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13309] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13310] <... futex resumed>)        = 0
[pid 13309] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13310] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13309] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13310] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13309] <... futex resumed>)        = 0
[pid 13310] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 13309] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13310] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 13310] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13310] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13309] <... futex resumed>)        = 0
[pid 13309] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13310] <... futex resumed>)        = 0
[pid 13310] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13310] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13310] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13309] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13309] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13310] <... futex resumed>)        = 0
[pid 13310] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13310] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13310] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13309] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13309] exit_group(0)               = ?
[pid 13310] <... futex resumed>)        = ?
[pid 13310] +++ exited with 0 +++
[pid 13309] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13309, si_uid=0, si_status=0, 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 13311 attached
, child_tidptr=0x55558842d690) = 13311
[pid 13311] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13311] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13311] setpgid(0, 0)               = 0
[pid 13311] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13311] write(3, "1000", 4)         = 4
[pid 13311] close(3)                    = 0
[pid 13311] write(1, "executing program\n", 18executing program
) = 18
[pid 13311] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13311] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13311] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13311] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13311] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13311] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13311] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13312 attached
 => {parent_tid=[13312]}, 88) = 13312
[pid 13312] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13312] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13312] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13311] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13311] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13312] <... futex resumed>)        = 0
[pid 13312] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 13311] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13312] <... 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 13312] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13312] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13311] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13311] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13312] <... futex resumed>)        = 0
[pid 13312] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13312] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13312] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13311] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13311] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13312] <... futex resumed>)        = 0
[pid 13312] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13312] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13312] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13311] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13311] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13312] <... futex resumed>)        = 0
[pid 13312] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13311] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13312] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13312] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13312] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13311] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13311] exit_group(0)               = ?
[pid 13312] <... futex resumed>)        = ?
[pid 13312] +++ exited with 0 +++
[pid 13311] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13311, si_uid=0, si_status=0, 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 13313 attached
, child_tidptr=0x55558842d690) = 13313
[pid 13313] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13313] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13313] setpgid(0, 0)               = 0
[pid 13313] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13313] write(3, "1000", 4)         = 4
[pid 13313] close(3)                    = 0
executing program
[pid 13313] write(1, "executing program\n", 18) = 18
[pid 13313] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13313] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13313] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13313] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13313] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13313] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13313] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13314]}, 88) = 13314
./strace-static-x86_64: Process 13314 attached
[pid 13313] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13314] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13313] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13314] <... set_robust_list resumed>) = 0
[pid 13313] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13314] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13313] <... futex resumed>)        = 0
[pid 13314] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13314] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13314] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13314] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13313] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13313] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13313] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13314] <... futex resumed>)        = 0
[pid 13314] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13314] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13314] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13313] <... futex resumed>)        = 0
[pid 13313] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13313] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13314] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13314] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13314] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13313] <... futex resumed>)        = 0
[pid 13313] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13313] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13314] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13314] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13313] <... futex resumed>)        = 0
[pid 13313] exit_group(0)               = ?
[pid 13314] +++ exited with 0 +++
[pid 13313] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13313, si_uid=0, si_status=0, 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 13315 attached
 <unfinished ...>
[pid 13315] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13315] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13315] setpgid(0, 0)               = 0
[pid 13315] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13315] write(3, "1000", 4)         = 4
[pid 13315] close(3)                    = 0
[pid 13315] write(1, "executing program\n", 18executing program
) = 18
[pid 13315] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13315] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0},  <unfinished ...>
[pid   555] <... clone resumed>, child_tidptr=0x55558842d690) = 13315
[pid 13315] <... rt_sigaction resumed>NULL, 8) = 0
[pid 13315] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13315] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13315] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13315] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13315] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13316]}, 88) = 13316
./strace-static-x86_64: Process 13316 attached
[pid 13315] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13315] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13315] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13316] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13316] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13316] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13316] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13315] <... futex resumed>)        = 0
[pid 13315] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13315] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13316] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13316] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13315] <... futex resumed>)        = 0
[pid 13315] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13315] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13316] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13316] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13315] <... futex resumed>)        = 0
[pid 13315] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13315] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13316] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13316] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13315] <... futex resumed>)        = 0
[pid 13315] exit_group(0)               = ?
[pid 13316] +++ exited with 0 +++
[pid 13315] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13315, si_uid=0, si_status=0, 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 13317 attached
, child_tidptr=0x55558842d690) = 13317
[pid 13317] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13317] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13317] setpgid(0, 0)               = 0
[pid 13317] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13317] write(3, "1000", 4)         = 4
[pid 13317] close(3executing program
)                    = 0
[pid 13317] write(1, "executing program\n", 18) = 18
[pid 13317] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13317] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13317] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13317] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13317] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13317] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13317] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13318]}, 88) = 13318
./strace-static-x86_64: Process 13318 attached
[pid 13318] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13318] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13318] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13317] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13317] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13318] <... futex resumed>)        = 0
[pid 13318] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 13317] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13318] <... 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 13318] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13317] <... futex resumed>)        = 0
[pid 13317] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13317] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13318] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13318] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13317] <... futex resumed>)        = 0
[pid 13317] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13317] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13318] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13318] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13317] <... futex resumed>)        = 0
[pid 13317] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13317] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13318] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13318] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13317] <... futex resumed>)        = 0
[pid 13317] exit_group(0)               = ?
[pid 13318] +++ exited with 0 +++
[pid 13317] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13317, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13319
./strace-static-x86_64: Process 13319 attached
[pid 13319] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13319] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13319] setpgid(0, 0)               = 0
[pid 13319] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13319] write(3, "1000", 4)         = 4
[pid 13319] close(3)                    = 0
executing program
[pid 13319] write(1, "executing program\n", 18) = 18
[pid 13319] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13319] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13319] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13319] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13319] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13319] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13319] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13320 attached
 <unfinished ...>
[pid 13320] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13319] <... clone3 resumed> => {parent_tid=[13320]}, 88) = 13320
[pid 13319] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13320] <... set_robust_list resumed>) = 0
[pid 13319] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13320] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13319] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13320] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 13319] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13320] <... 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 13320] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13319] <... futex resumed>)        = 0
[pid 13319] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13319] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13320] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13320] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13319] <... futex resumed>)        = 0
[pid 13319] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13319] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13320] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13320] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13319] <... futex resumed>)        = 0
[pid 13319] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13319] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13320] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13320] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13319] <... futex resumed>)        = 0
[pid 13319] exit_group(0 <unfinished ...>
[pid 13320] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL) = ?
[pid 13319] <... exit_group resumed>)   = ?
[pid 13320] +++ exited with 0 +++
[pid 13319] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13319, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13321
./strace-static-x86_64: Process 13321 attached
[pid 13321] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13321] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13321] setpgid(0, 0)               = 0
[pid 13321] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13321] write(3, "1000", 4)         = 4
[pid 13321] close(3)                    = 0
[pid 13321] write(1, "executing program\n", 18executing program
) = 18
[pid 13321] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13321] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13321] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13321] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13321] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13321] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13321] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13322 attached
 => {parent_tid=[13322]}, 88) = 13322
[pid 13322] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13322] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13322] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13321] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13321] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13322] <... futex resumed>)        = 0
[pid 13322] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13322] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13322] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13321] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13321] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13322] <... futex resumed>)        = 0
[pid 13321] <... futex resumed>)        = 1
[pid 13322] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13321] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13322] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13322] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13321] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13321] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13322] <... futex resumed>)        = 0
[pid 13322] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13322] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13322] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13321] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13321] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13322] <... futex resumed>)        = 0
[pid 13322] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13322] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13322] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13321] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13321] exit_group(0)               = ?
[pid 13322] <... futex resumed>)        = ?
[pid 13322] +++ exited with 0 +++
[pid 13321] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13321, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13323
./strace-static-x86_64: Process 13323 attached
[pid 13323] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13323] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13323] setpgid(0, 0)               = 0
[pid 13323] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13323] write(3, "1000", 4)         = 4
[pid 13323] close(3)                    = 0
executing program
[pid 13323] write(1, "executing program\n", 18) = 18
[pid 13323] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13323] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13323] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13323] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13323] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13323] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13323] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13324 attached
 <unfinished ...>
[pid 13324] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13323] <... clone3 resumed> => {parent_tid=[13324]}, 88) = 13324
[pid 13323] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13324] <... set_robust_list resumed>) = 0
[pid 13323] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13324] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13323] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13324] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 13323] <... futex resumed>)        = 0
[pid 13323] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13324] <... 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 13324] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13323] <... futex resumed>)        = 0
[pid 13323] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13323] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13324] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13324] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13323] <... futex resumed>)        = 0
[pid 13323] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13323] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13324] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13324] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13323] <... futex resumed>)        = 0
[pid 13323] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13323] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13324] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13324] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13323] <... futex resumed>)        = 0
[pid 13323] exit_group(0)               = ?
[pid 13324] +++ exited with 0 +++
[pid 13323] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13323, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13325
./strace-static-x86_64: Process 13325 attached
[pid 13325] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13325] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13325] setpgid(0, 0)               = 0
[pid 13325] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13325] write(3, "1000", 4)         = 4
[pid 13325] close(3)                    = 0
[pid 13325] write(1, "executing program\n", 18executing program
) = 18
[pid 13325] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13325] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13325] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13325] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13325] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13325] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13325] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13326 attached
 <unfinished ...>
[pid 13326] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13326] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13326] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13325] <... clone3 resumed> => {parent_tid=[13326]}, 88) = 13326
[pid 13325] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13325] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13326] <... futex resumed>)        = 0
[pid 13326] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13326] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13326] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13325] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13325] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13326] <... futex resumed>)        = 0
[pid 13326] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13326] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13326] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13325] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13325] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13326] <... futex resumed>)        = 0
[pid 13326] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13326] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13326] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13325] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13325] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13326] <... futex resumed>)        = 0
[pid 13326] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13326] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13326] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13325] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13325] exit_group(0)               = ?
[pid 13326] <... futex resumed>)        = ?
[pid 13326] +++ exited with 0 +++
[pid 13325] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13325, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13327
./strace-static-x86_64: Process 13327 attached
[pid 13327] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13327] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13327] setpgid(0, 0)               = 0
[pid 13327] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13327] write(3, "1000", 4)         = 4
[pid 13327] close(3executing program
)                    = 0
[pid 13327] write(1, "executing program\n", 18) = 18
[pid 13327] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13327] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13327] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13327] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13327] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13327] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13327] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13328 attached
 => {parent_tid=[13328]}, 88) = 13328
[pid 13328] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13327] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13328] <... set_robust_list resumed>) = 0
[pid 13327] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13328] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13327] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13328] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13327] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13328] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13328] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13328] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13327] <... futex resumed>)        = 0
[pid 13327] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13327] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13328] <... futex resumed>)        = 0
[pid 13328] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13328] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13327] <... futex resumed>)        = 0
[pid 13327] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13327] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13328] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13328] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13327] <... futex resumed>)        = 0
[pid 13327] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13327] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13328] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13328] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13327] <... futex resumed>)        = 0
[pid 13327] exit_group(0)               = ?
[pid 13328] +++ exited with 0 +++
[pid 13327] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13327, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13329
./strace-static-x86_64: Process 13329 attached
[pid 13329] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13329] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13329] setpgid(0, 0)               = 0
[pid 13329] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13329] write(3, "1000", 4)         = 4
[pid 13329] close(3executing program
)                    = 0
[pid 13329] write(1, "executing program\n", 18) = 18
[pid 13329] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13329] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13329] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13329] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13329] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13329] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13329] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13330 attached
 => {parent_tid=[13330]}, 88) = 13330
[pid 13329] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13329] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13329] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13330] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13330] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13330] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13330] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13329] <... futex resumed>)        = 0
[pid 13329] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13329] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13330] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13330] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13329] <... futex resumed>)        = 0
[pid 13330] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13329] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13330] <... futex resumed>)        = 0
[pid 13330] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13330] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13330] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13329] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13329] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13330] <... futex resumed>)        = 0
[pid 13330] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13330] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13330] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13329] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13329] exit_group(0)               = ?
[pid 13330] <... futex resumed>)        = ?
[pid 13330] +++ exited with 0 +++
[pid 13329] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13329, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13331
./strace-static-x86_64: Process 13331 attached
[pid 13331] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13331] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13331] setpgid(0, 0)               = 0
[pid 13331] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13331] write(3, "1000", 4)         = 4
[pid 13331] close(3)                    = 0
[pid 13331] write(1, "executing program\n", 18executing program
) = 18
[pid 13331] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13331] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13331] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13331] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13331] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13331] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13331] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13332 attached
 => {parent_tid=[13332]}, 88) = 13332
[pid 13332] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13332] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13332] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13331] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13331] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13332] <... futex resumed>)        = 0
[pid 13332] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13332] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13332] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13331] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13331] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13332] <... futex resumed>)        = 0
[pid 13332] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13332] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13332] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13331] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13331] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13332] <... futex resumed>)        = 0
[pid 13332] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13332] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13332] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13331] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13331] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13332] <... futex resumed>)        = 0
[pid 13332] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13332] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13332] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13331] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13331] exit_group(0)               = ?
[pid 13332] <... futex resumed>)        = ?
[pid 13332] +++ exited with 0 +++
[pid 13331] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13331, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13333
./strace-static-x86_64: Process 13333 attached
[pid 13333] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13333] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13333] setpgid(0, 0)               = 0
[pid 13333] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13333] write(3, "1000", 4)         = 4
[pid 13333] close(3)                    = 0
[pid 13333] write(1, "executing program\n", 18executing program
) = 18
[pid 13333] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13333] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13333] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13333] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13333] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13333] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13333] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13334 attached
 <unfinished ...>
[pid 13334] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13334] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13334] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13333] <... clone3 resumed> => {parent_tid=[13334]}, 88) = 13334
[pid 13333] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13333] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13334] <... futex resumed>)        = 0
[pid 13334] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13334] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13334] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13333] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13333] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13334] <... futex resumed>)        = 0
[pid 13334] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13334] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13334] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13333] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13333] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13334] <... futex resumed>)        = 0
[pid 13334] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13334] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13334] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13333] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13333] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13334] <... futex resumed>)        = 0
[pid 13334] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13334] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13334] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13333] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13333] exit_group(0)               = ?
[pid 13334] <... futex resumed>)        = ?
[pid 13334] +++ exited with 0 +++
[pid 13333] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13333, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13335
./strace-static-x86_64: Process 13335 attached
[pid 13335] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13335] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13335] setpgid(0, 0)               = 0
[pid 13335] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13335] write(3, "1000", 4)         = 4
[pid 13335] close(3)                    = 0
[pid 13335] write(1, "executing program\n", 18executing program
) = 18
[pid 13335] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13335] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13335] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13335] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13335] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13335] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13335] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13336 attached
 => {parent_tid=[13336]}, 88) = 13336
[pid 13335] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13335] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13335] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13336] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13336] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13336] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13336] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13335] <... futex resumed>)        = 0
[pid 13335] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13335] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13336] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13336] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13335] <... futex resumed>)        = 0
[pid 13335] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13335] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13336] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13336] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13335] <... futex resumed>)        = 0
[pid 13335] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13335] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13336] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13336] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13335] <... futex resumed>)        = 0
[pid 13335] exit_group(0)               = ?
[pid 13336] +++ exited with 0 +++
[pid 13335] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13335, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13337
./strace-static-x86_64: Process 13337 attached
[pid 13337] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13337] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13337] setpgid(0, 0)               = 0
[pid 13337] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13337] write(3, "1000", 4)         = 4
[pid 13337] close(3)                    = 0
[pid 13337] write(1, "executing program\n", 18executing program
) = 18
[pid 13337] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13337] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13337] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13337] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13337] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13337] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13337] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13338 attached
 => {parent_tid=[13338]}, 88) = 13338
[pid 13338] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13338] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13338] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13337] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13337] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13338] <... futex resumed>)        = 0
[pid 13338] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13338] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13338] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13337] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13337] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13338] <... futex resumed>)        = 0
[pid 13338] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13338] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13338] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13337] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13337] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13338] <... futex resumed>)        = 0
[pid 13338] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13337] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13338] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13338] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13337] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13337] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13338] <... futex resumed>)        = 0
[pid 13338] write(-1, "0x0000000000000001", 18 <unfinished ...>
[pid 13337] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13338] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid 13338] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13337] <... futex resumed>)        = 0
[pid 13337] exit_group(0)               = ?
[pid 13338] +++ exited with 0 +++
[pid 13337] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13337, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13339
./strace-static-x86_64: Process 13339 attached
[pid 13339] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13339] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13339] setpgid(0, 0)               = 0
[pid 13339] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13339] write(3, "1000", 4)         = 4
[pid 13339] close(3)                    = 0
[pid 13339] write(1, "executing program\n", 18executing program
) = 18
[pid 13339] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13339] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13339] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13339] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13339] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13339] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13339] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13340 attached
 => {parent_tid=[13340]}, 88) = 13340
[pid 13340] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13340] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13340] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13339] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13339] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13340] <... futex resumed>)        = 0
[pid 13340] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 13339] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13340] <... 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 13340] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13339] <... futex resumed>)        = 0
[pid 13340] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 13339] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13339] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13340] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 13340] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13339] <... futex resumed>)        = 0
[pid 13339] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13340] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 13339] <... futex resumed>)        = 0
[pid 13339] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13340] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 13340] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13339] <... futex resumed>)        = 0
[pid 13339] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13339] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13340] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13340] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13339] <... futex resumed>)        = 0
[pid 13339] exit_group(0 <unfinished ...>
[pid 13340] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13339] <... exit_group resumed>)   = ?
[pid 13340] <... futex resumed>)        = ?
[pid 13340] +++ exited with 0 +++
[pid 13339] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13339, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13341
./strace-static-x86_64: Process 13341 attached
[pid 13341] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13341] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13341] setpgid(0, 0)               = 0
[pid 13341] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13341] write(3, "1000", 4)         = 4
[pid 13341] close(3)                    = 0
[pid 13341] write(1, "executing program\n", 18executing program
) = 18
[pid 13341] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13341] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13341] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13341] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13341] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13341] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13341] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13342 attached
 => {parent_tid=[13342]}, 88) = 13342
[pid 13342] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13342] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13342] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13341] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13341] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13342] <... futex resumed>)        = 0
[pid 13341] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13342] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13342] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13342] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13341] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13341] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13342] <... futex resumed>)        = 0
[pid 13342] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13342] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13342] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13341] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13341] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13342] <... futex resumed>)        = 0
[pid 13342] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13342] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13342] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13341] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13341] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13342] <... futex resumed>)        = 0
[pid 13341] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13342] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13342] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13342] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13341] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13341] exit_group(0)               = ?
[pid 13342] <... futex resumed>)        = ?
[pid 13342] +++ exited with 0 +++
[pid 13341] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13341, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13343
./strace-static-x86_64: Process 13343 attached
[pid 13343] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13343] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13343] setpgid(0, 0)               = 0
[pid 13343] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13343] write(3, "1000", 4)         = 4
[pid 13343] close(3executing program
)                    = 0
[pid 13343] write(1, "executing program\n", 18) = 18
[pid 13343] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13343] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13343] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13343] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13343] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13343] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13343] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13344]}, 88) = 13344
[pid 13343] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13343] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13343] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 13344 attached
 <unfinished ...>
[pid 13344] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13344] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13344] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13344] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13343] <... futex resumed>)        = 0
[pid 13343] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13343] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13344] <... futex resumed>)        = 1
[pid 13344] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13344] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13343] <... futex resumed>)        = 0
[pid 13343] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13343] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13344] <... futex resumed>)        = 1
[pid 13344] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13344] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13343] <... futex resumed>)        = 0
[pid 13343] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13343] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13344] <... futex resumed>)        = 1
[pid 13344] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13344] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13343] <... futex resumed>)        = 0
[pid 13343] exit_group(0)               = ?
[pid 13344] <... futex resumed>)        = ?
[pid 13344] +++ exited with 0 +++
[pid 13343] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13343, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13345
./strace-static-x86_64: Process 13345 attached
[pid 13345] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13345] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13345] setpgid(0, 0)               = 0
[pid 13345] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13345] write(3, "1000", 4)         = 4
[pid 13345] close(3)                    = 0
executing program
[pid 13345] write(1, "executing program\n", 18) = 18
[pid 13345] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13345] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13345] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13345] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13345] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13345] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13345] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13346 attached
 => {parent_tid=[13346]}, 88) = 13346
[pid 13346] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13345] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13345] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13345] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13346] <... set_robust_list resumed>) = 0
[pid 13346] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13346] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13346] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13345] <... futex resumed>)        = 0
[pid 13345] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13345] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13346] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13346] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13345] <... futex resumed>)        = 0
[pid 13345] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13345] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13346] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13346] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13345] <... futex resumed>)        = 0
[pid 13345] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13345] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13346] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13346] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13345] <... futex resumed>)        = 0
[pid 13345] exit_group(0)               = ?
[pid 13346] +++ exited with 0 +++
[pid 13345] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13345, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13347
./strace-static-x86_64: Process 13347 attached
[pid 13347] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13347] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13347] setpgid(0, 0)               = 0
[pid 13347] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13347] write(3, "1000", 4)         = 4
[pid 13347] close(3)                    = 0
executing program
[pid 13347] write(1, "executing program\n", 18) = 18
[pid 13347] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13347] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13347] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13347] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13347] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13347] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13347] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13348]}, 88) = 13348
[pid 13347] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13347] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13347] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 13348 attached
 <unfinished ...>
[pid 13348] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13348] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13348] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13348] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13347] <... futex resumed>)        = 0
[pid 13347] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13347] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13348] <... futex resumed>)        = 1
[pid 13348] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13348] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13347] <... futex resumed>)        = 0
[pid 13347] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13347] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13348] <... futex resumed>)        = 1
[pid 13348] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13348] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13347] <... futex resumed>)        = 0
[pid 13347] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13347] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13348] <... futex resumed>)        = 1
[pid 13348] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13348] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13347] <... futex resumed>)        = 0
[pid 13347] exit_group(0)               = ?
[pid 13348] <... futex resumed>)        = ?
[pid 13348] +++ exited with 0 +++
[pid 13347] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13347, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13349
./strace-static-x86_64: Process 13349 attached
[pid 13349] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13349] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13349] setpgid(0, 0)               = 0
[pid 13349] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13349] write(3, "1000", 4)         = 4
[pid 13349] close(3executing program
)                    = 0
[pid 13349] write(1, "executing program\n", 18) = 18
[pid 13349] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13349] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13349] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13349] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13349] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13349] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13349] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13350]}, 88) = 13350
./strace-static-x86_64: Process 13350 attached
[pid 13349] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13349] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13349] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13350] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13350] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13350] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13350] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13349] <... futex resumed>)        = 0
[pid 13349] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13349] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13350] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13350] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13349] <... futex resumed>)        = 0
[pid 13349] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13349] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13350] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13350] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13349] <... futex resumed>)        = 0
[pid 13349] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13349] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13350] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13350] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13349] <... futex resumed>)        = 0
[pid 13349] exit_group(0)               = ?
[pid 13350] +++ exited with 0 +++
[pid 13349] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13349, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13351
./strace-static-x86_64: Process 13351 attached
[pid 13351] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13351] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13351] setpgid(0, 0)               = 0
[pid 13351] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13351] write(3, "1000", 4)         = 4
[pid 13351] close(3)                    = 0
[pid 13351] write(1, "executing program\n", 18executing program
) = 18
[pid 13351] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13351] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13351] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13351] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13351] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13351] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13351] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13352]}, 88) = 13352
./strace-static-x86_64: Process 13352 attached
[pid 13352] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13352] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13352] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13351] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13351] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13352] <... futex resumed>)        = 0
[pid 13351] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13352] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13352] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13352] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13351] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13351] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13352] <... futex resumed>)        = 0
[pid 13352] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13352] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13352] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13351] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13351] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13352] <... futex resumed>)        = 0
[pid 13352] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13352] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13352] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13351] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13351] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13352] <... futex resumed>)        = 0
[pid 13351] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13352] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13352] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13351] <... futex resumed>)        = 0
[pid 13351] exit_group(0)               = ?
[pid 13352] +++ exited with 0 +++
[pid 13351] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13351, 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=0x55558842d690) = 13353
./strace-static-x86_64: Process 13353 attached
[pid 13353] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13353] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13353] setpgid(0, 0)               = 0
[pid 13353] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13353] write(3, "1000", 4)         = 4
executing program
[pid 13353] close(3)                    = 0
[pid 13353] write(1, "executing program\n", 18) = 18
[pid 13353] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13353] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13353] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13353] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13353] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13353] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13353] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13354]}, 88) = 13354
[pid 13353] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13353] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13353] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 13354 attached
 <unfinished ...>
[pid 13354] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13354] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13354] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13354] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13353] <... futex resumed>)        = 0
[pid 13353] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13353] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13354] <... futex resumed>)        = 1
[pid 13354] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13354] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13353] <... futex resumed>)        = 0
[pid 13353] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13353] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13354] <... futex resumed>)        = 1
[pid 13354] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13354] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13353] <... futex resumed>)        = 0
[pid 13353] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13353] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13354] <... futex resumed>)        = 1
[pid 13354] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13354] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13353] <... futex resumed>)        = 0
[pid 13353] exit_group(0)               = ?
[pid 13354] <... futex resumed>)        = ?
[pid 13354] +++ exited with 0 +++
[pid 13353] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13353, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13355
./strace-static-x86_64: Process 13355 attached
[pid 13355] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13355] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13355] setpgid(0, 0)               = 0
[pid 13355] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13355] write(3, "1000", 4)         = 4
[pid 13355] close(3)                    = 0
executing program
[pid 13355] write(1, "executing program\n", 18) = 18
[pid 13355] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13355] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13355] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13355] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13355] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13355] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13355] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13356 attached
 => {parent_tid=[13356]}, 88) = 13356
[pid 13355] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13355] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13355] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13356] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13356] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13356] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13356] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13355] <... futex resumed>)        = 0
[pid 13355] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13355] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13356] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13356] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13355] <... futex resumed>)        = 0
[pid 13355] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13355] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13356] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13356] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13355] <... futex resumed>)        = 0
[pid 13355] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13355] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13356] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13356] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13355] <... futex resumed>)        = 0
[pid 13355] exit_group(0)               = ?
[pid 13356] +++ exited with 0 +++
[pid 13355] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13355, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13357
./strace-static-x86_64: Process 13357 attached
[pid 13357] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13357] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13357] setpgid(0, 0)               = 0
[pid 13357] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13357] write(3, "1000", 4)         = 4
[pid 13357] close(3)                    = 0
[pid 13357] write(1, "executing program\n", 18executing program
) = 18
[pid 13357] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13357] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13357] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13357] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13357] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13357] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13357] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13358 attached
 => {parent_tid=[13358]}, 88) = 13358
[pid 13358] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13358] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13358] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13357] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13357] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13358] <... futex resumed>)        = 0
[pid 13358] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13358] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13358] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13357] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13357] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13358] <... futex resumed>)        = 0
[pid 13358] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13358] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13358] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13357] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13357] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13358] <... futex resumed>)        = 0
[pid 13358] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13358] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13358] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13357] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13357] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13358] <... futex resumed>)        = 0
[pid 13358] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13358] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13358] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13357] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13357] exit_group(0)               = ?
[pid 13358] <... futex resumed>)        = ?
[pid 13358] +++ exited with 0 +++
[pid 13357] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13357, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13359
./strace-static-x86_64: Process 13359 attached
[pid 13359] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13359] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13359] setpgid(0, 0)               = 0
[pid 13359] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13359] write(3, "1000", 4)         = 4
[pid 13359] close(3)                    = 0
[pid 13359] write(1, "executing program\n", 18executing program
) = 18
[pid 13359] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13359] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13359] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13359] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13359] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13359] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13359] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13360]}, 88) = 13360
./strace-static-x86_64: Process 13360 attached
[pid 13360] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13360] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13360] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13359] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13359] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13360] <... futex resumed>)        = 0
[pid 13360] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13360] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13360] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13359] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13359] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13360] <... futex resumed>)        = 0
[pid 13359] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13360] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13360] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13359] <... futex resumed>)        = 0
[pid 13359] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13359] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13360] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13360] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13359] <... futex resumed>)        = 0
[pid 13360] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13359] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13359] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13360] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13360] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13360] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13359] <... futex resumed>)        = 0
[pid 13359] exit_group(0 <unfinished ...>
[pid 13360] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13359] <... exit_group resumed>)   = ?
[pid 13360] <... futex resumed>)        = ?
[pid 13360] +++ exited with 0 +++
[pid 13359] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13359, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13361
./strace-static-x86_64: Process 13361 attached
[pid 13361] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13361] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13361] setpgid(0, 0)               = 0
[pid 13361] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13361] write(3, "1000", 4)         = 4
[pid 13361] close(3)                    = 0
executing program
[pid 13361] write(1, "executing program\n", 18) = 18
[pid 13361] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13361] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13361] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13361] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13361] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13361] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13361] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13362 attached
 => {parent_tid=[13362]}, 88) = 13362
[pid 13362] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13361] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13361] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13361] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13362] <... set_robust_list resumed>) = 0
[pid 13362] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13362] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13362] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13361] <... futex resumed>)        = 0
[pid 13362] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13361] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13361] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13362] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13362] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13362] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13361] <... futex resumed>)        = 0
[pid 13361] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13361] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13362] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13362] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13361] <... futex resumed>)        = 0
[pid 13362] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13361] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13361] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13362] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13362] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13362] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13361] <... futex resumed>)        = 0
[pid 13362] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13361] exit_group(0)               = ?
[pid 13362] <... futex resumed>)        = ?
[pid 13362] +++ exited with 0 +++
[pid 13361] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13361, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13363
./strace-static-x86_64: Process 13363 attached
[pid 13363] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13363] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13363] setpgid(0, 0)               = 0
[pid 13363] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13363] write(3, "1000", 4)         = 4
[pid 13363] close(3)                    = 0
[pid 13363] write(1, "executing program\n", 18executing program
) = 18
[pid 13363] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13363] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13363] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13363] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13363] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13363] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13363] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13364 attached
 => {parent_tid=[13364]}, 88) = 13364
[pid 13364] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13364] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13364] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13363] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13363] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13364] <... futex resumed>)        = 0
[pid 13364] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 13363] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13364] <... 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 13364] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13364] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13363] <... futex resumed>)        = 0
[pid 13363] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13364] <... futex resumed>)        = 0
[pid 13364] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13364] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13363] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13364] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13363] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13363] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13364] <... futex resumed>)        = 0
[pid 13363] <... futex resumed>)        = 1
[pid 13364] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 13363] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13364] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 13364] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13363] <... futex resumed>)        = 0
[pid 13363] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13363] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13364] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13364] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13363] <... futex resumed>)        = 0
[pid 13363] exit_group(0 <unfinished ...>
[pid 13364] ????( <unfinished ...>
[pid 13363] <... exit_group resumed>)   = ?
[pid 13364] <... ???? resumed>)         = ?
[pid 13364] +++ exited with 0 +++
[pid 13363] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13363, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13365
./strace-static-x86_64: Process 13365 attached
[pid 13365] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13365] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13365] setpgid(0, 0)               = 0
[pid 13365] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13365] write(3, "1000", 4)         = 4
[pid 13365] close(3)                    = 0
[pid 13365] write(1, "executing program\n", 18executing program
) = 18
[pid 13365] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13365] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13365] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13365] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13365] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13365] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13365] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13366]}, 88) = 13366
[pid 13365] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13365] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13365] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 13366 attached
 <unfinished ...>
[pid 13366] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13366] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13366] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13366] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13365] <... futex resumed>)        = 0
[pid 13365] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13365] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13366] <... futex resumed>)        = 1
[pid 13366] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13366] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13365] <... futex resumed>)        = 0
[pid 13365] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13365] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13366] <... futex resumed>)        = 1
[pid 13366] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13366] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13365] <... futex resumed>)        = 0
[pid 13365] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13365] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13366] <... futex resumed>)        = 1
[pid 13366] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13366] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13365] <... futex resumed>)        = 0
[pid 13365] exit_group(0)               = ?
[pid 13366] <... futex resumed>)        = ?
[pid 13366] +++ exited with 0 +++
[pid 13365] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13365, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13367
./strace-static-x86_64: Process 13367 attached
[pid 13367] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13367] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13367] setpgid(0, 0)               = 0
[pid 13367] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13367] write(3, "1000", 4)         = 4
[pid 13367] close(3)                    = 0
executing program
[pid 13367] write(1, "executing program\n", 18) = 18
[pid 13367] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13367] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13367] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13367] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13367] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13367] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13367] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0} => {parent_tid=[13368]}, 88) = 13368
[pid 13367] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13367] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13367] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 13368 attached
 <unfinished ...>
[pid 13368] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13368] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13368] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13368] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13367] <... futex resumed>)        = 0
[pid 13367] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13368] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH <unfinished ...>
[pid 13367] <... futex resumed>)        = 0
[pid 13368] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid 13367] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13368] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13367] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13368] <... futex resumed>)        = 0
[pid 13367] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13368] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 13367] <... futex resumed>)        = 0
[pid 13368] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 13367] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13368] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13367] <... futex resumed>)        = 0
[pid 13367] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13367] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13368] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13368] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13367] <... futex resumed>)        = 0
[pid 13367] exit_group(0 <unfinished ...>
[pid 13368] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13367] <... exit_group resumed>)   = ?
[pid 13368] <... futex resumed>)        = ?
[pid 13368] +++ exited with 0 +++
[pid 13367] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13367, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13369
./strace-static-x86_64: Process 13369 attached
[pid 13369] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13369] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13369] setpgid(0, 0)               = 0
[pid 13369] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13369] write(3, "1000", 4)         = 4
[pid 13369] close(3)                    = 0
[pid 13369] write(1, "executing program\n", 18executing program
) = 18
[pid 13369] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13369] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13369] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13369] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13369] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13369] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13369] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13370 attached
 => {parent_tid=[13370]}, 88) = 13370
[pid 13370] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13369] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13369] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13369] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13370] <... set_robust_list resumed>) = 0
[pid 13370] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13370] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13370] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13370] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13369] <... futex resumed>)        = 0
[pid 13369] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13370] <... futex resumed>)        = 0
[pid 13370] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13370] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13370] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13369] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13369] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13370] <... futex resumed>)        = 0
[pid 13370] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13370] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13370] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13369] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13369] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13370] <... futex resumed>)        = 0
[pid 13370] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13370] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13370] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13369] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13369] exit_group(0)               = ?
[pid 13370] <... futex resumed>)        = ?
[pid 13370] +++ exited with 0 +++
[pid 13369] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13369, si_uid=0, si_status=0, 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 13371 attached
, child_tidptr=0x55558842d690) = 13371
[pid 13371] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13371] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13371] setpgid(0, 0)               = 0
[pid 13371] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13371] write(3, "1000", 4)         = 4
[pid 13371] close(3)                    = 0
[pid 13371] write(1, "executing program\n", 18executing program
) = 18
[pid 13371] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13371] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13371] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13371] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13371] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13371] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13371] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13373 attached
 => {parent_tid=[13373]}, 88) = 13373
[pid 13373] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13373] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13373] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13371] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13371] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13373] <... futex resumed>)        = 0
[pid 13371] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13373] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13373] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13373] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13371] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13371] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13373] <... futex resumed>)        = 0
[pid 13373] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13371] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13373] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13373] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13371] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13371] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13373] <... futex resumed>)        = 0
[pid 13373] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13373] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13373] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13371] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13371] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13373] <... futex resumed>)        = 0
[pid 13371] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13373] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13373] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13373] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13371] <... futex resumed>)        = 0
[pid 13371] exit_group(0)               = ?
[pid 13373] <... futex resumed>)        = ?
[pid 13373] +++ exited with 0 +++
[pid 13371] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13371, si_uid=0, si_status=0, 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 13374 attached
, child_tidptr=0x55558842d690) = 13374
[pid 13374] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13374] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13374] setpgid(0, 0)               = 0
[pid 13374] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13374] write(3, "1000", 4)         = 4
[pid 13374] close(3)                    = 0
executing program
[pid 13374] write(1, "executing program\n", 18) = 18
[pid 13374] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13374] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13374] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13374] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13374] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13374] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13374] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13375 attached
 => {parent_tid=[13375]}, 88) = 13375
[pid 13374] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13374] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13374] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13375] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13375] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13375] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13375] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13374] <... futex resumed>)        = 0
[pid 13374] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13374] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13375] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13375] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13374] <... futex resumed>)        = 0
[pid 13374] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13374] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13375] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13375] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13374] <... futex resumed>)        = 0
[pid 13374] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13374] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13375] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13375] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13374] <... futex resumed>)        = 0
[pid 13374] exit_group(0)               = ?
[pid 13375] +++ exited with 0 +++
[pid 13374] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13374, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13376
./strace-static-x86_64: Process 13376 attached
[pid 13376] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13376] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13376] setpgid(0, 0)               = 0
[pid 13376] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13376] write(3, "1000", 4)         = 4
[pid 13376] close(3)                    = 0
[pid 13376] write(1, "executing program\n", 18executing program
) = 18
[pid 13376] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13376] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13376] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13376] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13376] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13376] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13376] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13377 attached
 => {parent_tid=[13377]}, 88) = 13377
[pid 13377] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13377] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13377] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13376] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13376] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13377] <... futex resumed>)        = 0
[pid 13377] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13377] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13377] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13376] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13376] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13377] <... futex resumed>)        = 0
[pid 13377] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13377] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13377] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13376] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13376] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13377] <... futex resumed>)        = 0
[pid 13377] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13377] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13377] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13376] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13376] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13377] <... futex resumed>)        = 0
[pid 13377] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13377] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13377] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13376] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13376] exit_group(0 <unfinished ...>
[pid 13377] <... futex resumed>)        = ?
[pid 13377] +++ exited with 0 +++
[pid 13376] <... exit_group resumed>)   = ?
[pid 13376] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13376, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13378
./strace-static-x86_64: Process 13378 attached
[pid 13378] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13378] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13378] setpgid(0, 0)               = 0
[pid 13378] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13378] write(3, "1000", 4)         = 4
[pid 13378] close(3)                    = 0
[pid 13378] write(1, "executing program\n", 18) = 18
executing program
[pid 13378] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13378] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13378] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13378] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13378] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13378] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13378] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13379 attached
 => {parent_tid=[13379]}, 88) = 13379
[pid 13379] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13378] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13379] <... set_robust_list resumed>) = 0
[pid 13378] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13379] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13378] <... futex resumed>)        = 0
[pid 13379] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13378] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13379] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13379] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13378] <... futex resumed>)        = 0
[pid 13378] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13378] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13379] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13379] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13378] <... futex resumed>)        = 0
[pid 13378] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13378] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13379] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13379] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13378] <... futex resumed>)        = 0
[pid 13378] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13378] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13379] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13379] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13378] <... futex resumed>)        = 0
[pid 13378] exit_group(0)               = ?
[pid 13379] +++ exited with 0 +++
[pid 13378] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13378, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13380
./strace-static-x86_64: Process 13380 attached
[pid 13380] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13380] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13380] setpgid(0, 0)               = 0
[pid 13380] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13380] write(3, "1000", 4)         = 4
executing program
[pid 13380] close(3)                    = 0
[pid 13380] write(1, "executing program\n", 18) = 18
[pid 13380] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13380] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13380] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13380] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13380] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13380] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13380] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13381 attached
 => {parent_tid=[13381]}, 88) = 13381
[pid 13381] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13380] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13381] <... set_robust_list resumed>) = 0
[pid 13381] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13380] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13381] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13380] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13381] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 13380] <... futex resumed>)        = 0
[pid 13380] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13381] <... 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 13381] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13380] <... futex resumed>)        = 0
[pid 13380] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13380] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13381] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13381] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13380] <... futex resumed>)        = 0
[pid 13380] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13380] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13381] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13381] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13380] <... futex resumed>)        = 0
[pid 13380] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13380] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13381] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13381] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13381] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13380] <... futex resumed>)        = 0
[pid 13380] exit_group(0)               = ?
[pid 13381] <... futex resumed>)        = ?
[pid 13381] +++ exited with 0 +++
[pid 13380] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13380, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13382
./strace-static-x86_64: Process 13382 attached
[pid 13382] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13382] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13382] setpgid(0, 0)               = 0
[pid 13382] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13382] write(3, "1000", 4)         = 4
[pid 13382] close(3)                    = 0
[pid 13382] write(1, "executing program\n", 18executing program
) = 18
[pid 13382] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13382] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13382] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13382] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13382] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13382] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13382] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13383 attached
 => {parent_tid=[13383]}, 88) = 13383
[pid 13383] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13383] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13383] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13382] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13382] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13383] <... futex resumed>)        = 0
[pid 13382] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13383] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13383] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13383] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13382] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13382] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13383] <... futex resumed>)        = 0
[pid 13383] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13383] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13383] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13382] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13382] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13383] <... futex resumed>)        = 0
[pid 13383] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 13382] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13383] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 13383] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13383] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13382] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13382] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13383] <... futex resumed>)        = 0
[pid 13382] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13383] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13383] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13383] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13382] <... futex resumed>)        = 0
[pid 13382] exit_group(0)               = ?
[pid 13383] <... futex resumed>)        = 231
[pid 13383] +++ exited with 0 +++
[pid 13382] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13382, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13384
./strace-static-x86_64: Process 13384 attached
[pid 13384] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13384] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13384] setpgid(0, 0)               = 0
[pid 13384] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13384] write(3, "1000", 4)         = 4
[pid 13384] close(3)                    = 0
executing program
[pid 13384] write(1, "executing program\n", 18) = 18
[pid 13384] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13384] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13384] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13384] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13384] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13384] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13384] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13385 attached
 => {parent_tid=[13385]}, 88) = 13385
[pid 13385] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13385] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13385] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13384] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13384] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13384] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13385] <... futex resumed>)        = 0
[pid 13385] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13385] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13384] <... futex resumed>)        = 0
[pid 13384] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13384] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13385] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13385] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13384] <... futex resumed>)        = 0
[pid 13384] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13384] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13385] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13385] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13384] <... futex resumed>)        = 0
[pid 13384] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13384] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13385] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13385] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13384] <... futex resumed>)        = 0
[pid 13384] exit_group(0)               = ?
[pid 13385] +++ exited with 0 +++
[pid 13384] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13384, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13386
./strace-static-x86_64: Process 13386 attached
[pid 13386] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13386] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13386] setpgid(0, 0)               = 0
[pid 13386] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13386] write(3, "1000", 4)         = 4
[pid 13386] close(3)                    = 0
executing program
[pid 13386] write(1, "executing program\n", 18) = 18
[pid 13386] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13386] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13386] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13386] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13386] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13386] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13386] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13387 attached
 => {parent_tid=[13387]}, 88) = 13387
[pid 13387] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13387] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13387] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13386] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13386] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13387] <... futex resumed>)        = 0
[pid 13387] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13387] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13387] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13386] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13386] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13387] <... futex resumed>)        = 0
[pid 13387] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13387] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13387] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13386] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13386] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13387] <... futex resumed>)        = 0
[pid 13387] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13387] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13387] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13386] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13386] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13387] <... futex resumed>)        = 0
[pid 13387] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13387] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13387] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13386] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13386] exit_group(0)               = ?
[pid 13387] <... futex resumed>)        = ?
[pid 13387] +++ exited with 0 +++
[pid 13386] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13386, 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=0x55558842d690) = 13388
./strace-static-x86_64: Process 13388 attached
[pid 13388] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13388] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13388] setpgid(0, 0)               = 0
[pid 13388] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13388] write(3, "1000", 4executing program
)         = 4
[pid 13388] close(3)                    = 0
[pid 13388] write(1, "executing program\n", 18) = 18
[pid 13388] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13388] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13388] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13388] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13388] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13388] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13388] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13389 attached
 => {parent_tid=[13389]}, 88) = 13389
[pid 13388] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13388] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13388] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13389] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13389] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13389] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13389] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13388] <... futex resumed>)        = 0
[pid 13388] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13388] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13389] <... futex resumed>)        = 1
[pid 13389] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13389] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13388] <... futex resumed>)        = 0
[pid 13388] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13388] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13389] <... futex resumed>)        = 1
[pid 13389] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13389] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13388] <... futex resumed>)        = 0
[pid 13388] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13388] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13389] <... futex resumed>)        = 1
[pid 13389] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13389] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13388] <... futex resumed>)        = 0
[pid 13388] exit_group(0)               = ?
[pid 13389] <... futex resumed>)        = ?
[pid 13389] +++ exited with 0 +++
[pid 13388] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13388, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13390
./strace-static-x86_64: Process 13390 attached
[pid 13390] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13390] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13390] setpgid(0, 0)               = 0
[pid 13390] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13390] write(3, "1000", 4)         = 4
[pid 13390] close(3)                    = 0
[pid 13390] write(1, "executing program\n", 18executing program
) = 18
[pid 13390] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13390] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13390] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13390] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13390] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13390] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13390] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13391 attached
 => {parent_tid=[13391]}, 88) = 13391
[pid 13390] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13390] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13390] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13391] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13391] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13391] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13391] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13390] <... futex resumed>)        = 0
[pid 13390] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13390] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13391] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13391] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13390] <... futex resumed>)        = 0
[pid 13390] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13390] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13391] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13391] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13390] <... futex resumed>)        = 0
[pid 13390] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13390] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13391] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13391] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13391] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13390] <... futex resumed>)        = 0
[pid 13390] exit_group(0)               = ?
[pid 13391] <... futex resumed>)        = ?
[pid 13391] +++ exited with 0 +++
[pid 13390] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13390, si_uid=0, si_status=0, 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 13392 attached
, child_tidptr=0x55558842d690) = 13392
[pid 13392] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13392] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13392] setpgid(0, 0)               = 0
[pid 13392] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13392] write(3, "1000", 4)         = 4
[pid 13392] close(3)                    = 0
[pid 13392] write(1, "executing program\n", 18executing program
) = 18
[pid 13392] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13392] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13392] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13392] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13392] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13392] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13392] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13393 attached
 <unfinished ...>
[pid 13393] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13393] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13393] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13392] <... clone3 resumed> => {parent_tid=[13393]}, 88) = 13393
[pid 13392] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13392] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13393] <... futex resumed>)        = 0
[pid 13393] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13393] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13393] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13392] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13392] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13393] <... futex resumed>)        = 0
[pid 13393] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13393] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13393] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13392] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13392] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13393] <... futex resumed>)        = 0
[pid 13393] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13393] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13393] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13392] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13392] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13393] <... futex resumed>)        = 0
[pid 13393] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13393] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13393] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13392] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13392] exit_group(0)               = ?
[pid 13393] <... futex resumed>)        = ?
[pid 13393] +++ exited with 0 +++
[pid 13392] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13392, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13394
./strace-static-x86_64: Process 13394 attached
[pid 13394] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13394] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13394] setpgid(0, 0)               = 0
[pid 13394] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13394] write(3, "1000", 4)         = 4
[pid 13394] close(3)                    = 0
[pid 13394] write(1, "executing program\n", 18executing program
) = 18
[pid 13394] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13394] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13394] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13394] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13394] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13394] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13394] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13395 attached
 <unfinished ...>
[pid 13395] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13395] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13395] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13394] <... clone3 resumed> => {parent_tid=[13395]}, 88) = 13395
[pid 13394] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13394] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13395] <... futex resumed>)        = 0
[pid 13395] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13395] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13395] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13394] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13394] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13395] <... futex resumed>)        = 0
[pid 13395] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13395] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13395] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13394] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13394] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13395] <... futex resumed>)        = 0
[pid 13395] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13395] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13395] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13394] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13394] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13395] <... futex resumed>)        = 0
[pid 13395] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13395] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13395] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13394] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13394] exit_group(0)               = ?
[pid 13395] <... futex resumed>)        = ?
[pid 13395] +++ exited with 0 +++
[pid 13394] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13394, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13396
./strace-static-x86_64: Process 13396 attached
[pid 13396] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13396] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13396] setpgid(0, 0)               = 0
[pid 13396] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13396] write(3, "1000", 4)         = 4
[pid 13396] close(3)                    = 0
[pid 13396] write(1, "executing program\n", 18executing program
) = 18
[pid 13396] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13396] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13396] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13396] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13396] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13396] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13396] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13397 attached
 => {parent_tid=[13397]}, 88) = 13397
[pid 13397] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13397] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13397] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13396] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13396] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13397] <... futex resumed>)        = 0
[pid 13397] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13397] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13397] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13396] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13396] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13397] <... futex resumed>)        = 0
[pid 13397] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13397] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13397] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13396] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13396] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13397] <... futex resumed>)        = 0
[pid 13397] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13397] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13397] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13396] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13396] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13397] <... futex resumed>)        = 0
[pid 13397] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13397] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13397] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13396] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13396] exit_group(0)               = ?
[pid 13397] <... futex resumed>)        = ?
[pid 13397] +++ exited with 0 +++
[pid 13396] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13396, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13398
./strace-static-x86_64: Process 13398 attached
[pid 13398] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13398] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13398] setpgid(0, 0)               = 0
[pid 13398] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13398] write(3, "1000", 4)         = 4
[pid 13398] close(3)                    = 0
executing program
[pid 13398] write(1, "executing program\n", 18) = 18
[pid 13398] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13398] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13398] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13398] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13398] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13398] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13398] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13399 attached
 => {parent_tid=[13399]}, 88) = 13399
[pid 13398] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13398] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13398] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13399] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13399] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13399] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13399] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13398] <... futex resumed>)        = 0
[pid 13398] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13398] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13399] <... futex resumed>)        = 1
[pid 13399] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13399] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13398] <... futex resumed>)        = 0
[pid 13398] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13398] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13399] <... futex resumed>)        = 1
[pid 13399] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13399] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13398] <... futex resumed>)        = 0
[pid 13398] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13398] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13399] <... futex resumed>)        = 1
[pid 13399] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13399] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13398] <... futex resumed>)        = 0
[pid 13398] exit_group(0)               = ?
[pid 13399] <... futex resumed>)        = ?
[pid 13399] +++ exited with 0 +++
[pid 13398] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13398, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13400
./strace-static-x86_64: Process 13400 attached
[pid 13400] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13400] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13400] setpgid(0, 0)               = 0
[pid 13400] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13400] write(3, "1000", 4)         = 4
[pid 13400] close(3)                    = 0
[pid 13400] write(1, "executing program\n", 18executing program
) = 18
[pid 13400] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13400] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13400] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13400] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13400] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13400] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13400] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13401 attached
 => {parent_tid=[13401]}, 88) = 13401
[pid 13401] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13401] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13401] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13400] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13400] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13401] <... futex resumed>)        = 0
[pid 13401] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13401] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13401] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13400] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13400] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13401] <... futex resumed>)        = 0
[pid 13401] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13401] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13401] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13400] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13400] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13401] <... futex resumed>)        = 0
[pid 13401] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13401] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13401] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13400] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13400] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13401] <... futex resumed>)        = 0
[pid 13401] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13401] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13401] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13400] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13400] exit_group(0)               = ?
[pid 13401] <... futex resumed>)        = ?
[pid 13401] +++ exited with 0 +++
[pid 13400] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13400, si_uid=0, si_status=0, 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 13402 attached
, child_tidptr=0x55558842d690) = 13402
[pid 13402] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13402] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13402] setpgid(0, 0)               = 0
[pid 13402] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13402] write(3, "1000", 4)         = 4
[pid 13402] close(3)                    = 0
[pid 13402] write(1, "executing program\n", 18executing program
) = 18
[pid 13402] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13402] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13402] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13402] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13402] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13402] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13402] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13403 attached
 => {parent_tid=[13403]}, 88) = 13403
[pid 13403] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13403] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13403] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13402] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13402] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13403] <... futex resumed>)        = 0
[pid 13403] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 13402] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13403] <... 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 13403] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13402] <... futex resumed>)        = 0
[pid 13402] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13402] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13403] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13403] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13402] <... futex resumed>)        = 0
[pid 13402] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13402] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13403] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13403] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13402] <... futex resumed>)        = 0
[pid 13402] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13402] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13403] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13403] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13402] <... futex resumed>)        = 0
[pid 13402] exit_group(0)               = ?
[pid 13403] +++ exited with 0 +++
[pid 13402] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13402, si_uid=0, si_status=0, 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 13404 attached
 <unfinished ...>
[pid 13404] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13404] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   555] <... clone resumed>, child_tidptr=0x55558842d690) = 13404
[pid 13404] <... prctl resumed>)        = 0
[pid 13404] setpgid(0, 0)               = 0
[pid 13404] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13404] write(3, "1000", 4)         = 4
[pid 13404] close(3executing program
)                    = 0
[pid 13404] write(1, "executing program\n", 18) = 18
[pid 13404] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13404] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13404] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13404] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13404] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13404] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13404] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13405 attached
 => {parent_tid=[13405]}, 88) = 13405
[pid 13405] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13405] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13405] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13404] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13404] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13405] <... futex resumed>)        = 0
[pid 13405] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13405] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13405] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13404] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13404] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13405] <... futex resumed>)        = 0
[pid 13405] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13405] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13405] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13404] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13404] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13405] <... futex resumed>)        = 0
[pid 13405] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13405] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13405] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13404] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13404] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13405] <... futex resumed>)        = 0
[pid 13405] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13405] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13405] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13404] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13404] exit_group(0)               = ?
[pid 13405] <... futex resumed>)        = ?
[pid 13405] +++ exited with 0 +++
[pid 13404] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13404, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13406
./strace-static-x86_64: Process 13406 attached
[pid 13406] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13406] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13406] setpgid(0, 0)               = 0
[pid 13406] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13406] write(3, "1000", 4)         = 4
[pid 13406] close(3)                    = 0
[pid 13406] write(1, "executing program\n", 18executing program
) = 18
[pid 13406] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13406] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13406] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13406] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13406] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13406] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13406] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13407 attached
 => {parent_tid=[13407]}, 88) = 13407
[pid 13407] set_robust_list(0x7fee38e679a0, 24 <unfinished ...>
[pid 13406] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13407] <... set_robust_list resumed>) = 0
[pid 13406] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13407] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13406] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13407] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13406] <... futex resumed>)        = 0
[pid 13406] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13407] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13407] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13406] <... futex resumed>)        = 0
[pid 13406] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13406] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13407] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13407] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13406] <... futex resumed>)        = 0
[pid 13406] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13406] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13407] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13407] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13406] <... futex resumed>)        = 0
[pid 13406] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13406] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13407] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13407] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13406] <... futex resumed>)        = 0
[pid 13406] exit_group(0)               = ?
[pid 13407] +++ exited with 0 +++
[pid 13406] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13406, si_uid=0, si_status=0, 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 13408 attached
, child_tidptr=0x55558842d690) = 13408
[pid 13408] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13408] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13408] setpgid(0, 0)               = 0
[pid 13408] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13408] write(3, "1000", 4)         = 4
[pid 13408] close(3)                    = 0
[pid 13408] write(1, "executing program\n", 18executing program
) = 18
[pid 13408] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13408] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13408] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13408] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13408] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13408] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13408] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13409 attached
 => {parent_tid=[13409]}, 88) = 13409
[pid 13409] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13409] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13409] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13408] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13408] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13409] <... futex resumed>)        = 0
[pid 13408] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13409] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13409] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13409] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13408] <... futex resumed>)        = 0
[pid 13408] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13409] <... futex resumed>)        = 0
[pid 13409] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13409] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13409] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13408] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13408] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13409] <... futex resumed>)        = 0
[pid 13409] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13409] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13409] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13408] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13408] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13409] <... futex resumed>)        = 0
[pid 13409] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13409] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13409] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13408] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13408] exit_group(0)               = ?
[pid 13409] <... futex resumed>)        = ?
[pid 13409] +++ exited with 0 +++
[pid 13408] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13408, si_uid=0, si_status=0, 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 13410 attached
 <unfinished ...>
[pid 13410] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13410] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   555] <... clone resumed>, child_tidptr=0x55558842d690) = 13410
[pid 13410] <... prctl resumed>)        = 0
[pid 13410] setpgid(0, 0)               = 0
[pid 13410] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13410] write(3, "1000", 4)         = 4
[pid 13410] close(3)                    = 0
executing program
[pid 13410] write(1, "executing program\n", 18) = 18
[pid 13410] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13410] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13410] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13410] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13410] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13410] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13410] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13411 attached
 => {parent_tid=[13411]}, 88) = 13411
[pid 13411] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13410] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 13411] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13411] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13410] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 13410] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13411] <... futex resumed>)        = 0
[pid 13411] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7 <unfinished ...>
[pid 13410] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13411] <... 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 13411] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13410] <... futex resumed>)        = 0
[pid 13410] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13410] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13411] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13411] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13410] <... futex resumed>)        = 0
[pid 13410] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13410] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13411] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13411] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13410] <... futex resumed>)        = 0
[pid 13410] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13410] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13411] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13411] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13410] <... futex resumed>)        = 0
[pid 13410] exit_group(0)               = ?
[pid 13411] +++ exited with 0 +++
[pid 13410] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13410, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13412
./strace-static-x86_64: Process 13412 attached
[pid 13412] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13412] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13412] setpgid(0, 0)               = 0
[pid 13412] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13412] write(3, "1000", 4)         = 4
[pid 13412] close(3)                    = 0
[pid 13412] write(1, "executing program\n", 18executing program
) = 18
[pid 13412] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13412] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13412] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13412] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13412] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13412] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13412] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13413 attached
 <unfinished ...>
[pid 13413] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13413] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13413] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13412] <... clone3 resumed> => {parent_tid=[13413]}, 88) = 13413
[pid 13412] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13412] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13413] <... futex resumed>)        = 0
[pid 13413] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13413] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13413] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13412] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13412] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13413] <... futex resumed>)        = 0
[pid 13413] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13413] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13413] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13412] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13412] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13413] <... futex resumed>)        = 0
[pid 13413] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EBADF (Bad file descriptor)
[pid 13413] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13413] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13412] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13412] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13413] <... futex resumed>)        = 0
[pid 13413] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13413] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13413] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13412] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid 13412] exit_group(0)               = ?
[pid 13413] <... futex resumed>)        = ?
[pid 13413] +++ exited with 0 +++
[pid 13412] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13412, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13414
./strace-static-x86_64: Process 13414 attached
[pid 13414] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13414] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13414] setpgid(0, 0)               = 0
[pid 13414] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13414] write(3, "1000", 4)         = 4
[pid 13414] close(3)                    = 0
[pid 13414] write(1, "executing program\n", 18executing program
) = 18
[pid 13414] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13414] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13414] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13414] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13414] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13414] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13414] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13415 attached
 => {parent_tid=[13415]}, 88) = 13415
[pid 13415] set_robust_list(0x7fee38e679a0, 24) = 0
[pid 13415] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13415] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13414] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 13414] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13415] <... futex resumed>)        = 0
[pid 13415] bpf(BPF_TASK_FD_QUERY, {task_fd_query={pid=0, fd=-1, flags=0, buf_len=7, buf="cgroup", prog_id=0, fd_type=BPF_FD_TYPE_RAW_TRACEPOINT, probe_offset=0, probe_addr=0}}, 48) = -1 ENOENT (No such file or directory)
[pid 13415] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13414] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13415] <... futex resumed>)        = 0
[pid 13415] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13414] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13414] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13415] <... futex resumed>)        = 0
[pid 13415] openat(AT_FDCWD, "cgroup", O_RDWR|O_PATH) = -1 ENOENT (No such file or directory)
[pid 13415] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13414] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13415] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13414] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13415] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid 13414] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 13415] openat(-1, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid 13414] <... futex resumed>)        = 0
[pid 13414] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13415] <... openat resumed>)       = -1 EBADF (Bad file descriptor)
[pid 13415] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13414] <... futex resumed>)        = 0
[pid 13414] futex(0x7fee38f303e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13414] futex(0x7fee38f303ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 13415] write(-1, "0x0000000000000001", 18) = -1 EBADF (Bad file descriptor)
[pid 13415] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 13414] <... futex resumed>)        = 0
[pid 13414] exit_group(0 <unfinished ...>
[pid 13415] futex(0x7fee38f303e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 13414] <... exit_group resumed>)   = ?
[pid 13415] <... futex resumed>)        = ?
[pid 13415] +++ exited with 0 +++
[pid 13414] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13414, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558842d690) = 13416
./strace-static-x86_64: Process 13416 attached
[pid 13416] set_robust_list(0x55558842d6a0, 24) = 0
[pid 13416] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 13416] setpgid(0, 0)               = 0
[pid 13416] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 13416] write(3, "1000", 4)         = 4
[pid 13416] close(3)                    = 0
executing program
[pid 13416] write(1, "executing program\n", 18) = 18
[pid 13416] futex(0x7fee38f303ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 13416] rt_sigaction(SIGRT_1, {sa_handler=0x7fee38ecc560, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fee38ebdbe0}, NULL, 8) = 0
[pid 13416] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 13416] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fee38e47000
[pid 13416] mprotect(0x7fee38e48000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 13416] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 13416] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fee38e67990, parent_tid=0x7fee38e67990, exit_signal=0, stack=0x7fee38e47000, stack_size=0x20300, tls=0x7fee38e676c0}./strace-static-x86_64: Process 13417 attached
 => {parent_tid=[13417]}, 88) = 13417